DSHW-2024-007123

ATTACHMENT 10B

THERMAL TREATMENT UNIT
HUMAN HEALTH RISK ASSESSMENT
Utah Test and Training Range
Attachment 10B - TTU Human Health Risk Assessment
Issued DRAFT
10B-1

Contents
1.0 General ..................................................................................................................................................... 10B-2
1.1 Current Evaluation ............................................................................................................................... 10B-3
2.0 Groundwater Pathway [UAC R315-264-601] .......................................................................................... 10B-3
2.1 Performance Standards ......................................................................................................................... 10B-3
3.0 Surface Water [UAC R315-264-601] ....................................................................................................... 10B-5
4.0 Surface Soil [UAC R315-264-601] .......................................................................................................... 10B-6
4.1 Performance Standards ......................................................................................................................... 10B-6
4.2 Required Programs ............................................................................................................................... 10B-7
4.3 Surface Soil Data.................................................................................................................................. 10B-7
4.3.1 Chemicals of Concern ...................................................................................................................... 10B-7
o 4.4 Assessment of Potential Health Risks ................................................................................................ 10B-8
▪ 4.4.1 Exposure and Intake Parameters ................................................................................................. 10B-8
▪ 4.4.2 Toxicity Factors .......................................................................................................................... 10B-8
▪ 4.4.3 Risk-based Concentrations .......................................................................................................... 10B-9
▪ 4.4.4 Risk Characterization ................................................................................................................ 10B-11
5.0 Air [UAC R315-264-601] ...................................................................................................................... 10B-12
o 5.1 Performance Standards ..................................................................................................................... 10B-12
o 5.2 Receptors .......................................................................................................................................... 10B-12
o 5.3 Emission Characterization ................................................................................................................ 10B-12
o 5.4 Assessment of Potential Health Risks .............................................................................................. 10B-15
▪ 5.4.1 Exposure and Intake Parameters ............................................................................................... 10B-15
▪ 5.4.2 Toxicity Factors ........................................................................................................................ 10B-15
▪ 5.4.3 Risk-based Concentrations ........................................................................................................ 10B-15
▪ 5.4.4 Risk Characterization ................................................................................................................ 10B-18
6.0 References .............................................................................................................................................. 10B-19

Utah Test and Training Range
Attachment 10B - TTU Human Health Risk Assessment
Issued DRAFT
10B-2

ENVIRONMENTAL PERFORMANCE STANDARDS AND HUMAN HEALTH AND
ECOLOGICAL RISK ASSESSMENTS
1.0 General
In 1987, Hill Air Force Base (HAFB) applied for a Treatment, Storage, and Disposal (TSD)
facility permit for the Thermal Treatment Unit (TTU) located at the Utah Test and Training
Range (UTTR). The Utah Department of Environmental Quality (UDEQ) issued the final permit
February 13, 2003, and reissued the permit September 13, 2013. The 1997 human health risk
assessment (HHRA) submitted in support of the original permit request indicated that the
OB/OD operations would not cause undue harm to the potential onsite and offsite receptors. The
risk evaluation was updated in April 2005 with the inclusion of additional soil sampling data
from the 2002 and 2004 sampling events. The 2005 risk assessment forms the baseline against
which the future soil sampling data must be evaluated, in terms of changes in the human health
risk from the ongoing OB/OD operations.
This risk assessment must be reviewed every fifth calendar year after issuance of the Permit
(Section II.F.2 of the Permit) and updated if needed. The risk assessment addresses risks for four
distinct exposure scenarios or pathways. These are the groundwater exposure pathway (Section
2.0), the surface water exposure pathway (Section 3.0), the surface soil exposure pathway
(Section 4.0), and the air exposure pathway (Section 5.0).
Sections 2.0 and 3.0 discuss the lack of potential exposure through the groundwater and surface
water pathways and do not contain chemical-specific risk analysis for these exposure scenarios.
Section 3.0 discusses the potential risks for soil ingestion, inhalation, and dermal adsorption to
an industrial worker. The industrial worker is a full-time career person involved in the handling
of soils displaced during detonations and in the preparation of the area for the next operation.
The industrial worker was not evaluated in the original permit. Rather, a resident and a
construction worker involved in a hypothetical residential development onsite were evaluated.
Given the unlikelihood that the site will ever be developed, the residential development scenario
is not realistic; therefore, the assessment of risks to these hypothetical receptors is not
appropriate at this time and has not been included. On the other hand, the grading and
preparation of the OB/OD area by an industrial worker are real ongoing activities. Therefore, an
assessment that the industrial TTU worker is not put at an unacceptable risk is appropriate and is
required by Section III.G.1 of the Part B permit. Soil data from sampling events in 2019 and
2021 have been included in this revision.
Section 5.0 discusses the air exposure pathway and analyzes inhalation risks to (1) an Explosive
Ordnance Disposal (EOD) person monitoring the OB/OD operations onsite, (2) to a resident at
the nearby community of Oasis, and (3) to a recreational boater on the Great Salt Lake. These
receptors remain the same as in the original permit, but chemical information has been updated
and chemical-specific risks have been recalculated.

Utah Test and Training Range
Attachment 10B - TTU Human Health Risk Assessment
Issued DRAFT
10B-3

1.1 Current Evaluation
This HHRA was originally completed and incorporated into the Permit in 2005. Biennial
evaluations of the risk assessment were conducted in 2007, 2009, 2011, 2013, and 2018. The
2022 Human Health Risk Screen Evaluation is attached as Appendix G. It summarizes the
findings of the previous evaluations and incorporates new sampling data.

2.0 Groundwater Pathway [UAC R315-264-601]
2.1 Performance Standards
The environmental performance standard for protection of groundwater calls for the prevention
of any releases that may adversely affect human health or the environment due to migration of
waste constituents in the groundwater or subsurface environments. Specific items to be
considered include:
● The volume and chemical characteristics of the waste in the unit;
● The hydrogeologic and geologic characteristics of the unit and surrounding area;
● The existing quality of groundwater;
● The quantity and direction of groundwater flow;
● The proximity to and withdrawal rates of current and potential groundwater users;
● The patterns of land use in the region;
● The potential for deposition or migration of waste constituents into the subsurface,
physical structures, and the root zone of food chain crops and other vegetation;
● The potential for health risks caused by human exposure to waste constituents; and
● The potential for damage to domestic animals, wildlife, crops, vegetation, and physical
structures caused by exposure to waste constituents.
2.2 Required Programs
Utah regulations require groundwater monitoring and reporting at all hazardous waste
management facilities unless a waiver is granted. The groundwater monitoring program consists
of detection monitoring, compliance monitoring, and monitoring during and after corrective
actions. Detection monitoring at the TTU is conducted on a semiannual basis.
2.3 Site-Specific Conditions
Groundwater and geologic conditions beneath the TTU facility were investigated in 1991
through monitoring wells TTU-1 and TTU-2 (see Figure 1). Boreholes for the wells revealed
extensive thicknesses of unsaturated, low-permeability soils. Groundwater in an unnamed aquifer
occurs at depths ranging from 450 feet (ft) near the southwest corner of the facility to 650 ft
beneath the ridge at Sedal Pass above the TTU. Based on groundwater levels in the upgradient
and downgradient monitoring wells, depth to groundwater beneath the three OB/OD units is
estimated to be greater than 585 ft.
Utah Test and Training Range
Attachment 10B - TTU Human Health Risk Assessment
Issued DRAFT
10B-4

Groundwater samples collected from the wells at TTU-1 and TTU-2 since 2018 were analyzed
for energetics and metals. Table 1 shows the detected analytes. Each is commonly found in area
soils.
Analytical results to date show various metals were present in groundwater samples taken from
both monitoring wells in 2018, 2019, 2020, and 2021 (Table 1). Each is commonly found in area
soils. One energetic (nitrobenzene) was detected in one sample taken from one monitoring well
(TTU-1) in 1996. Energetics were also detected in samples taken in 1996 (including TNT, HMX,
and PETN) and 2000 (TNT). The 2000 detection was attributed to laboratory contamination and
the 1995 and 1996 detections were attributed to sample contamination in the field. Samples taken
in December 2004 also showed the presence of perchlorate at levels less than 1 part per billion
(ppb). Groundwater analytical results collected since 2018 show that no explosives or explosive
breakdown products were detected in the groundwater. Perchlorate, which is both naturally
occurring and used as an oxidizer in propellants, was detected at concentrations consistent with
those previously observed (approximately 1 microgram per liter (ug/L), with the exception of the
2018 sample in TTU-2 (2.01 ug/L). All analyses included equipment blanks and matrix spikes
(MS) and were completed by environmental laboratories certified by the State of Utah.
The information in Table 1 suggests that groundwater contamination resulting from OB/OD
activities at the TTU is not likely to have occurred. A previous groundwater dating study using
carbon-14, tritium/helium, and chlorofluorocarbon methods has demonstrated that groundwater
in this area is Pleistocene in age (14,000 years before present), is essentially stagnant, and
receives little or no current recharge (CH2M HILL, 2006). That study supports the conclusion
that some perchlorate in groundwater beneath the TTU is naturally occurring. Groundwater
contamination from this facility is unlikely because:
● Groundwater occurs at greater than 400 to 600 ft below the ground surface (bgs)
● The average annual precipitation is generally low (i.e., approximately 6 in/year)
● The potential for evapotranspiration is high
● The soil deposits exhibit low permeability characteristics
The U.S. Geological Survey (USGS) well records for two nearby wells (within 7 miles) are
shown in Table 2. Current groundwater users withdraw water through three of these wells. Two
of the wells are pumped to supply Oasis with water; the third is used intermittently for stock
watering by non-resident sheepherders. The fourth well, which lies east of the TTU, is owned by
the Air Force and is not currently used.
As shown in Table 2, groundwater in the area contains moderate to high concentrations of
chloride and sodium, which limits its usefulness for many applications. According to Price
(1970), the groundwater in the Sink Valley Hydrologic Basin is unsuitable for irrigation, but
there is sufficient groundwater locally to support some industrial development for which the
chemical quality of water is not a limiting factor. However, the groundwater throughout the area
is too highly mineralized for any industry that requires water with a total dissolved solids (TDS)
concentration less than 2,000 milligrams per liter (mg/L). Low TDS water for industries or for
domestic supplies must be transported into the area, as was done at the railroad camp at
Lakeside, or pumped from the groundwater sources and demineralized, as is done at the support
compound of Oasis.
Utah Test and Training Range
Attachment 10B - TTU Human Health Risk Assessment
Issued DRAFT
10B-5

As discussed in Attachment 1 of the hazardous waste operating permit, the amount of
groundwater recharged due to infiltration is slight. Groundwater recharge in the vicinity of the
TTU enters the groundwater system only along the margins of the adjacent mountains where
coarser-grained sediments are present.

2.4 Assessment of Potential Health Risks

Analytical results demonstrate that groundwater beneath the TTU has likely not been impacted
by OB/OD activities. This, coupled with the following facts, make it extremely unlikely anyone
would be at risk because of TTU activities by drinking from the same groundwater source that
lies beneath the TTU:
● The area receives less than 6 inches of precipitation per year; the soil and rock beneath
the TTU have low vertical permeabilities; and groundwater is more than 400 ft bgs.
● All wells in the vicinity have low specific yields; before any groundwater can be
considered potable, it must be treated to remove impurities.
● There is no current or projected future use of groundwater resources near the TTU.

3.0 Surface Water [UAC R315-264-601]
3.1 Performance Standards
The environmental performance standard for surface water calls for the prevention of any
releases that may have adverse effects on human health or the environment due to migration of
waste constituents in surface water or in wetlands. Considerations include:
● The volume and physical and chemical characteristics of the waste in the unit
● The effectiveness and reliability of containing, confining, and collecting systems and
structures and preventing migration
● The hydrologic characteristics of the unit and surrounding area, including the topography
and land around the unit
● The patterns of precipitation in the region
● The quantity and quality and direction of groundwater flow
● The proximity of the unit to surface waters
● The current and potential uses of nearby surface waters and any other water quality
standards established for those surface waters
● The existing quality of surface waters and surface soils, including other sources of
contamination
● Patterns of land use in the region
● The potential for health risks caused by human exposure to waste constituents
● The potential for damage to domestic animals, wildlife, crops, vegetation, and physical
structures caused by exposure to waste constituents

Utah Test and Training Range
Attachment 10B - TTU Human Health Risk Assessment
Issued DRAFT
10B-6

3.2 Required Programs
In accordance with Section III.G.4.a of the permit, surface water accumulation will be monitored
during the monthly environmental compliance inspection of the TTU required by Condition II.H.
and described in Attachment 5. Sampling of observed surface water will take place within 24
hours if, in the judgement of the Facility inspector, significant surface water accumulation is
observed that is likely to facilitate contaminant transport or serve as a water source for wildlife.
The area of inspection for surface water will be limited to the TTU boundary.
3.3 Site-Specific Conditions
There are no permanent surface water bodies within the confines of the TTU or in the
surrounding area. However, as shown in Figure 1, there is an erosional dry wash located
topographically below the TTU subunits. Surface water may also collect in detonation craters or
other depressions within the TTU operational area, although the area is actively managed to
facilitate storm water runoff. Surface water is present in the dry wash and detonation craters
infrequently during major storm events. Annual precipitation in and around the TTU is generally
less than 6 inches per year. The only additional water input to the site is from localized dust
control operations. Because the TTU subunits are located near the top of the precipitation
catchment basin, there is little potential for surface water runoff collecting in the subunits. The
natural topography directs the flow away from active portions of the TTU.
The closest surface water body to the TTU is the Great Salt Lake, which lies approximately
3 miles eastward. Because the TTU is located on the west side of the Lakeside Mountain Range,
surface water runoff from the TTU facility is directed to the west, away from the Great Salt
Lake, into the Sink Valley, which is a closed, internally drained basin.
For these reasons, surface water resources in the vicinity will not be affected by OB/OD
operations at the TTU. In addition, there are no known surface water pathways from the TTU
subunits to any human or environmental receptors.
3.4 Assessment of Potential Health Risks
The only surface water present at the TTU is the infrequent accumulation of storm water in a
detonation crater and dry wash. A heavy rain event in August 2012 resulted in the accumulation
of surface water runoff in one of the detonation craters. Surface water was collected from the
crater in 2012 and evaluated for potential risks in the 2013 HHRSE. No accumulations of surface
water have been observed at the site since 2013; therefore, surface water is not evaluated in this
2022 HHRSE. Human health risks and hazards via surface water exposure pathway are
considered insignificant because the limited duration of standing water and limited access
renders potential exposures de minimis. Therefore, there is no potential for significant human
health risks from this pathway.
4.0 Surface Soil [UAC R315-264-601]
4.1 Performance Standards
The environmental performance standard for soil calls for the prevention of any releases that
may have adverse effects on the health of a career industrial worker.
Utah Test and Training Range
Attachment 10B - TTU Human Health Risk Assessment
Issued DRAFT
10B-7

4.2 Required Programs
The Draft Final Open Burning/Open Detonation Permitting Guidelines (EPA, 2002), requires
sampling of surface soil within and contiguous to the OB/OD units’ area of impact. Soil
sampling at the TTU is required on a biennial basis in accordance with Section III.G.1 of the
Permit.
4.3 Surface Soil Data
This report addresses soil data from the 2019 and 2021 sampling events (CH2M HILL, 2020;
CH2M HILL, 2022). The analytical data for these sampling events were verified and validated
according to the Air Force Center for Engineering and the Environment data quality assessment
and validation guidelines.
4.3.1 Chemicals of Concern
Appendix A presents the descriptive statistics for the soil samples. The total number of samples,
number of detects and other concentration-related statistics are presented in the appendix. The
sampling locations are indicated on Figure 1.
The United States Environmental Protection Agency (EPA) does not require a toxicity
assessment for chemicals with less than a 5% detection frequency. However, Hill AFB evaluated
all the detected analytes in the HHRSE regardless of the detection frequency. The surface soil
analytes are presented in Table 4.
4.3.2 Exposure Point Concentrations
The exposure point concentration (EPC) is a statistical concentration for the exposure area in
which the receptor performs his/her work. It was assumed that the worker had an equal
probability of exposure to soils anywhere in the TTU sampling area; therefore, data from all
locations were grouped together.
The derivation of the EPC requires specific treatment of the undetected results. While the
detected values were considered as reported, following the EPA’s guidelines the undetected
results were considered potential detects at one-half the reported detection limits. The resulting
values were then subjected to data distribution tests using the EPA’s ProUCL software (EPA,
2004). The software then calculates a distribution-specific upper limit around the mean
concentration (UCL). Table 4 presents the results of the data distribution tests and the UCLs.
Finally, the EPC to be used in the risk assessment was selected between the maximum detected
concentration and the UCL based on the detection frequency. When the data consist primarily of
the treated values (i.e., one-half the detection limit), the calculated UCLs are of little utility.
Therefore, in cases where the detection frequency was less than 20 percent, the maximum
detection concentrations were used as the EPC instead of the UCL.
4.3.3 Background Evaluation
Most of the metals detected in the TTU samples also occur naturally. In risk characterization, it
is important to distinguish metals that may be attributable to the OB/OD operations from those
not originating from the operations. If the site sample concentration for a metal is not statistically
distinguishable from the natural concentration, it could be concluded that TTU operations have
Utah Test and Training Range
Attachment 10B - TTU Human Health Risk Assessment
Issued DRAFT
10B-8

not affected the area soils with respect to that metal; therefore, that metals can be excluded from
risk characterization.
Soil characterization studies surrounding the TTU have adequately characterized the background
soil composition (CH2M Hill, 2011b; Appendix A). This updated HHRA report addresses
background versus site comparisons only for analytes that exceed risk based screening levels.
o 4.4 Assessment of Potential Health Risks
The HHRSE was conducted to determine whether existing concentrations of the analytes in soil
indicate potential unacceptable health risk for the industrial worker. The EPA’s regional
screening levels (RSLs) for the industrial worker soil exposure were the basis of this HHRSE
(EPA, 2022a). The RSLs are risk-based concentrations (RBCs) derived from standardized
equations combining exposure information assumptions with EPA toxicity data. The RSLs are
considered by the EPA to be protective for humans (including sensitive groups) over a lifetime.
The excess lifetime cancer risk (ELCR) and hazard quotient (HQ) used to calculate the RSLs are
10-6 and 1, respectively.
▪ 4.4.1 Exposure and Intake Parameters
The RSLs account for exposure to soil via incidental ingestion, dermal contact, and inhalation of
volatiles and particulate inhalation. These are the same exposure pathways considered in the
2018 HHRSE (CH2M HILL, 2013).
The RSL table and User’s Guide (EPA, 2022a) presenting the updated EPA default exposure
factors and resulting RSLs are presented in Appendix A and the EPA’s Regional Screening
Level User’s Guide (EPA, 2022b).
▪ 4.4.2 Toxicity Factors
The RSLs use toxicity factors derived from the three-tier hierarchy established by EPA (2003).
These sources include the following:
• Tier 1—The EPA’s Integrated Risk Information System.
• Tier 2—The EPA’s Provisional Peer reviewed Toxicity Values (PPRTVs).
• Tier 3—Other Toxicity Values. Tier 3 includes additional EPA and non-EPA sources of
toxicity information.
− The Agency for Toxic Substances and Disease Registry minimal risk levels
− The California Environmental Protection Agency Office of Environmental Health
Hazard Assessment Toxicity Criteria Database
− The EPA’s PPRTV Screening Toxicity Values
− The EPA’s Health Effects Assessment Summary Table.
The toxicity factors for the chemicals detected in the surface soil are presented in Table 6. A
more complete list of chemicals, toxicity factors, dermal toxicity factors, and GI absorption
factors is presented in Appendix B.
Utah Test and Training Range
Attachment 10B - TTU Human Health Risk Assessment
Issued DRAFT
10B-9

▪ 4.4.3 Risk-based Concentrations
The risk-based soil concentrations (RBC) were individually calculated for the oral, dermal, and
inhalation pathways using the exposure and intake parameters for the industrial worker, and the
toxicity factors. The RBCs are the threshold concentrations that equate to an excess lifetime
cancer risk (ELCR) of 1E-06 or the hazard index (HI) of 1. The RBCs for the individual
pathways were then inverse-summed to provide a combined carcinogenic or non-carcinogenic
RBC that accounts for the cumulative risks from the three pathways. The RBC calculation
equations are as follows:
Carcinogenic Oral RBC
RBC (mg/Kg) = TR_SI*ATc_SI*BW_SI*365days/year
EF_SI*ED_SI*SFo*0.000001*IRs_SI
where
TR_SI = Target Risk (1 x 10-6)
ATc_SI = Carcinogenic averaging time (70 yrs)
BW_SI = Body weight (70 Kg)
EF_SI = Exposure frequency (250 days/yr)
ED_SI = Exposure duration (25 yr)
SFo = Oral slope factor (Kg-day/mg)
IRs_SI = Soil ingestion rate (100 mg/day)
0.000001 = Conversion factor (Kg/mg)
Carcinogenic Dermal RBC
RBC (mg/Kg) = TR_SI*ATc_SI*BW_SI*365days/year
EF_SI*ED_SI*SFo/GI_Factor*0.000001*SA_SI*AF_SI*ABS
where
TR_SI = Target Risk (1 x 10-6)
ATc_SI = Carcinogenic averaging time (70 yrs)
BW_SI = Body weight (70 Kg)
EF_SI = Exposure frequency (250 days/yr)
ED_SI = Exposure duration (25 yr)
SFo = Oral slope factor (Kg-day/mg)
GI_Factor = Gastro-intestinal absorption factor (chemical-specific)
SA_SI = Skin surface area, (3300 cm2)
AF_SI = Skin adherence factor (0.2 mg/cm2)
ABS = Skin absorption factor (chemical-specific)
0.000001 = Conversion factor (Kg/mg)
Carcinogenic Inhalation RBC
RBC (mg/Kg) = TR_SI*BW_SI*ATc_SI*365days/year
EF_SI*ED_SI*SFi*IRa_SI/PEF_SI
Utah Test and Training Range
Attachment 10B - TTU Human Health Risk Assessment
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10B-10

where
TR_SI = Target Risk (1 x 10-6)
ATc_SI = Carcinogenic averaging time (70 yrs)
BW_SI = Body weight (70 Kg)
EF_SI = Exposure frequency (250 days/yr)
ED_SI = Exposure duration (25 yr)
SFi = Inhalation slope factor (Kg-day/mg)
IRa_SI = Air inhalation rate (20 M3/day)
PEF_SI = Particulate emission factor (5.11 x 107 M3/Kg)
Non-carcinogenic Oral RBC
RBC (mg/Kg) = THI_SI*ATn_SI*BW_SI*365days/year
EF_SI*ED_SI/RfDo*0.000001*IRs_SI
where
THI_SI = Target hazard index (1)
ATn_SI = Non-carcinogenic averaging time (25 yrs)
BW_SI = Body weight (70 Kg)
EF_SI = Exposure frequency (250 days/yr)
ED_SI = Exposure duration (25 yr)
RfDo = Oral reference dose (mg/Kg-day)
IRs_SI = Soil ingestion rate (100 mg/day)
0.000001 = Conversion factor (Kg/mg)

Non-carcinogenic Dermal RBC
RBC (mg/Kg) = THI_SI*ATn_SI*BW_SI*365days/year
EF_SI*ED_SI/RfDo*GI_Factor*0.000001*SA_SI*AF_SI*ABS
where
THI_SI = Target hazard index (1)
ATn_SI = Non-carcinogenic averaging time (25 yrs)
BW_SI = Body weight (70 Kg)
EF_SI = Exposure frequency (250 days/yr)
ED_SI = Exposure duration (25 yr)
RfDo = Oral reference dose (mg/Kg-day)
GI_ Factor = Gastro-intestinal absorption factor (chemical-specific)
SA_SI = Skin surface area, (3300 cm2)
AF_SI = Skin adherence factor (0.2 mg/cm2)
Utah Test and Training Range
Attachment 10B - TTU Human Health Risk Assessment
Issued DRAFT
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ABS = Skin absorption factor (chemical-specific)
0.000001 = Conversion factor (Kg/mg)
Non-carcinogenic Inhalation RBC
RBC (mg/Kg) = THI_SI*BW_SI*ATn_SI*365days/year
EF_SI*ED_SI/RfDi*IRa_SI/PEF_SI
where
THI_SI = Target hazard index (1)
ATn_SI = Carcinogenic averaging time (70 yrs)
BW_SI = Body weight (70 Kg)
EF_SI = Exposure frequency (250 days/yr)
ED_SI = Exposure duration (25 yr)
RfDi = Inhalation reference dose (mg/Kg-day)
IRa_SI = Air inhalation rate (20 M3/day)
PEF_SI = Particulate emission factor (5.11 x 107 M3/Kg)
Appendix C presents the risk-based concentrations (RBC) for a comprehensive list of chemicals
including the COCs.
▪ 4.4.4 Risk Characterization
The risks for each COC were calculated using the chemical-specific EPCs and RBCs as follows:
ELCR = EPC/Cancer RSL x 10-6
HI = EPC/Noncancer RSL
The carcinogenic risks were then added for all chemicals for the total carcinogenic and non-
carcinogenic risks to the industrial worker. The total risks are provided in Table 7.
Table 7 indicates a cumulative ELCR of 5E-06 (roughly, 5 incidences per million) and a
cumulative HI of 0.7. Both of these risk estimates are within the general risk acceptance limits.
Depending on the site specifics, an ELCR up to 1E-4 (1 incidence per 10,000) can be accepted.
The HI acceptance limit is generally 1.
Table 7 also indicates that practically all of the carcinogenic risk arises from arsenic. Arsenic is
not known to be a major component of the OB/OD items. Its presence is likely attributable to the
native soil. The arsenic UCL of 7.7 mg/Kg is comparable to the background UCL for the
Western US soils. The USGS background soils data (Schacklette and Boerngen, 1984) indicate
that the 37 soil samples collected throughout Utah averaged 8 mg/Kg in concentration with a
UCL of 10.7 mg/Kg. Therefore, the carcinogenic risk from arsenic is most likely naturally
occurring. The cumulative ELCR drops to 7E-08 if arsenic is excluded.
Approximately 45 percent of the noncarcinogenic risk arises from manganese, and other metals
that have concentration and distribution characteristics similar to the USGS statewide data. If
these metals are eliminated, the cumulative HI reduces to 0.4.
Utah Test and Training Range
Attachment 10B - TTU Human Health Risk Assessment
Issued DRAFT
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For information purposes, the USGS background data for arsenic and manganese, and their
descriptive statistics are presented in Tables 8 and 9, respectively.
The risk assessment assumed exposure for 250 days/year for 25 years for the same person, which
is likely to be overly conservative. The adoption of oral toxicity factors for dermal and inhalation
risks also adds to conservatism in the risk estimates. Despite these conservative measures, the
estimated risks to the industrial worker are not significant.

5.0 Air [UAC R315-264-601]
o 5.1 Performance Standards
The environmental performance standard for the protection of the air pathway requires the
prevention of any release that may have adverse effects on human health or the environment due
to migration of waste constituents in the air. Specific items to be considered include:
● The volume and physical and chemical characteristics of the waste in the unit, including its
potential for the emission and dispersal of gases, aerosols, and particulates
● The effectiveness and reliability of systems and structures to reduce or prevent emissions of
hazardous constituents to the air
● The operating characteristics of the unit
● The atmospheric, meteorological, and topographic characteristics of the unit and surrounding
area
● The existing quality of the air, including other sources of contamination and their cumulative
impact on the air
● The potential for health risks caused by human exposure to waste constituents
● The potential for damage to domestic animals, wildlife, crops, vegetation, and physical
structures caused by exposure to waste constituents
o 5.2 Receptors
The air pathway entails inhalation risks to (1) an EOD person monitoring the OB/OD operations
onsite, (2) to a resident at the nearby community of Oasis, and (3) to a recreational boater on the
Great Salt Lake. These receptors remain the same as in the original permit. Water levels in the
Great Salt Lake have dropped substantially over the last 10 years with the net result of
significantly limiting access to, and use of, the Great Salt Lake for recreation.
o 5.3 Emission Characterization
As a source of air pollutants, OB/OD units must operate in accordance with specifications
provided in the state-issued hazardous waste permit. All OB/OD units must be in compliance
with National Ambient Air Quality Standards (NAAQS) and the Utah Division of Air Quality
(UDAQ) standards, as demonstrated by the use of state-approved air dispersion modeling
Utah Test and Training Range
Attachment 10B - TTU Human Health Risk Assessment
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protocol. In addition, OB/OD facilities must evaluate whether air emissions pose a risk to human
health or the environment.
The air modeling exercise was completed as part of the 1997 permit application. The EPA’s
INPUFF model was used to estimate the air concentrations; hence, risks for three specific
receptors. The air modeling does not need to be re-done, unless the OB/OD operations have
changed significantly in terms of the types and quantities of material being destroyed or the
emissions. The OB/OD is carried out as on-demand batch operation, depending on the needs of
the time. However, an analysis of the materials destroyed over a period of 10 years indicated that
regardless of the items being destroyed (i.e., a rocket motor or missile engine), the explosives
and propellants types and quantities have remained relatively unchanged (Hill Air Force Base,
2005). From year to year, the detonation of C-4 missile motors has comprised from 60 to
85 percent of the net amount of explosives and propellants destroyed. As the inventory of C-4
motors awaiting disposal is almost depleted, disposal of D-5 missile motors (the successor to the
C-4 missiles) is commencing. The propellant in the C-4 and D-5 missiles is nearly identical with
no discernible upward change to projected emissions. Further, there is no new information in the
MIDAS database to warrant a revision of the modeling or a change in the emissions. It should be
noted that waste streams using the burn pan (e.g., small munitions and dunnage) were last treated
at the TTU in 1997 and the burn pan was decommissioned and removed in 2018. This does not
add or increase emissions.
Therefore, the emissions and emission factors presented in Tables 8, 9, and 10 of the 1997 permit
are still considered representative of the current operations and have been used in the risk
characterization.
5.3.1 Dioxin and Furan Emissions
As part of this 2005 risk assessment revision and as a requirement of Section II.F.2.c, HAFB also
investigated the potential for formation of dioxins and furans from the OB/OD operations,
including the burning of dunnage and diesel fuel. Dioxin/furan emissions from OB/OD treatment
have been characterized in several tests, including the 1992 “Bang Box” studies that were
conducted to characterize emissions from propellant burning operations (U.S. Army, 1992). The
tests found that the burning of composite propellant did not produce detectable levels of the most
toxic 2,3,7,8-tetrachlorodibenzodioxin, but did produce trace amounts of the less toxic 2,3,7,8-
tetrachlorodibenzofuran and measurable amounts of the chlorinated derivatives hepta- and
octachlorodibenzo-p-dioxin. Emission factors related with these compounds were reported at
5.3 x 10-12 g/g and 30 x 10-12 g/g, respectively, which are an order of magnitude lower than the
emission factor considered in the analysis below.
Another attempt to characterize dioxin furan emissions from OB/OD activities, specifically from
diesel fuel and dunnage, was reported in EPA, 1998. A 1995 Bang Box study collected data from
the burning of a dunnage surrogate containing Styrofoam, pasteboard, and wood soaked in diesel
fuel (87.5 percent cellulose and 12.5 percent plastic/diesel fuel by weight). The test produced no
detectable furan emissions. Octachlorodibenzo-p-dioxin (OCDD) was detected in one of the
three test burns, but the emission factor was not considered reliable because the chemical was not
present in the other two tests, the background emission factor accounted for 70 percent of the
corrected emission factor, and the uncorrected emission factor was only 30 percent larger than
the emission factor calculated from the minimum quantitation limit emission factor
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Attachment 10B - TTU Human Health Risk Assessment
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(2.1 E-10 g/g). An emission factor of 1E-11 g/g was included in the resulting OB/OD emission
factor database for dunnage and diesel fuel. An emission factor for furan of 4.0E-8 g/g for the
burning of a simulated ammonium perchlorate manufacturing waste (65 percent aluminized AP,
20 percent plastic, 11 percent paper/wood/cloth, and 4 percent diesel) was also included.
With respect to open detonations, from the reaction kinetics perspective, it appears highly
unlikely that dioxins/furans will form from these operations. Detonations do not provide
favorable conditions for dioxin and furan formation, which include low temperatures
(250-400 °C) and long residence times (seconds) (EPA, 1998). This is supported by the lack of
detectable emissions from detonation tests during the Bang Box studies (EPA, 1998). The
detonation of the M43A2 flare was the only detonation test that produced measurable dioxin
levels that were included in the OB/OD emission factor database.
Considering the available data and the types of munitions treated at the TTU, the potential for
dioxin/furan production and exposure is low. The primary areas where dunnage and diesel fuel
would be burned are at operational Site 1 and the burn pan. Scrap propellant burns at Site 1 do
contain dunnage including wooden and cardboard containers and some plastic packaging, but the
percentage of these materials in comparison to the mass of propellant is generally much less than
the 31 percent used in the 1995 Bang Box study (EPA, 1998), and these burns are conducted
infrequently (usually once each month). The use of dunnage and diesel fuel at Site 1 is very rare
and only allowed if a solid waste burn variance is obtained from the Waste Management and
Radiation Control Board (Section III.D.1.a.iii). Section III.D.3 of the permit allows for the use of
a reasonable amount of diesel fuel to be added to munitions and dunnage during operation of the
burn pan. However, the burn pan has not been used in the past several years, and as of this
revision (2005), there are no plans to use it in the foreseeable future.
If the burn pan were to be used on a frequent basis, then the emission factor for dunnage reported
in (EPA, 1998) may be applicable. This emission factor is also the one applied for diesel and
dunnage in the current Open Burn/Open Detonation Model (OBODM) (Bjorkland et al., 1998).
As discussed above, the reported emission factor is for OCDD, the only compound of the
dioxins/furans class detected in the diesel and dunnage test. Its emission rate is estimated at
1E-11 g/g (10 picograms/gram of diesel and dunnage).
Although, the dioxins/furans were not specifically modeled in the 1997 TTU risk assessment, a
reasonable estimate of dioxin/furan risks can be made with a comparative analysis of the
OBODM emission rates and toxicity factors for a known compound such as benzene and those
for OCDD. The diesel and dunnage emission rate of 1E-11 g/g for OCDD is seven orders-of-
magnitude lower than that for benzene (1E-4 g/g). On the other hand, OCDD is three orders-of-
magnitude more toxic than benzene (inhalation toxicity factor for benzene is 0.027 Kg-day/mg
compared to the factor of 15 Kg-day/mg for OCDD, based on 2,3,7,8-TCDD toxicity of 150000
Kg-day/mg and the World Health Organization Toxicity Equivalent factor of 0.0001). See
Appendix B for the inhalation slope factors. Therefore, the risk from potential dioxin/furan
emissions from diesel and dunnage would be four orders-of-magnitude lower than the risk from
benzene.
As discussed later, the inhalation risk from benzene is in the 1E-10 to 1E-9 range. This would
put the dioxin/furan risk from diesel dunnage in the 1E-14 to 1E-13 range. The margin of safety
(a minimum seven orders-of-magnitude below the risk acceptance level) is large enough to
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Attachment 10B - TTU Human Health Risk Assessment
Issued DRAFT
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conclude that dioxin/furan emissions would not pose a risk concern to the three receptors if the
burn pan were to be used on a frequent basis.
o 5.4 Assessment of Potential Health Risks
The results of the 1997 INPUFF air dispersion modeling were used in the inhalation risk
characterization. The toxicity factors were updated to the most recent values available.
▪ 5.4.1 Exposure and Intake Parameters
The exposure and intake parameters for the air receptors are included in Table 5. These
parameters are the same as in the 1997, 2003, 2005, 2007, 2009, 2011, 2013, and 2018
assessments, except for the update on the exposure duration for the Oasis resident in the 2018
HHRSE. The exposure duration for the Oasis resident was changed from 30 years to 26 years
according to the EPA’s update to standard default exposure factors in 2014 (EPA, 2014). It was
assumed that the EOD worker was exposed to emissions only while conducting OB/OD
operations. The recreational boater was assumed to spend 2 days on the lake every week. Access
to the Oasis compound is limited to working employees only and no family members are allowed
to reside in the area. The Oasis resident (adult workers) was assumed to spend at least 5 days per
week at the Oasis compound. The daily exposure times include a factor to account for the
fraction of the time the wind blows in the direction of a given receptor.
▪ 5.4.2 Toxicity Factors
The EPA’s IRIS, PPRTV, and HEAST data sources were researched for the most current
carcinogenic slope factors and non-carcinogenic reference doses. The specific inhalation toxicity
factors were generally not available for the constituents in the air emissions. In such cases, the
oral toxicity factors were used as inhalation toxicity factors.
Table 10 presents the air constituents and the toxicity values. Both the original 1997 and the
2005 values are provided for a comparison. The changes in the toxicity factors are further
highlighted in Table 11 (new toxicity factors) and Table 12 (changes in the toxicity factors). The
2005 toxicity factors were used in the risk calculations.
▪ 5.4.3 Risk-based Concentrations
The RBCs were calculated for the inhalation pathway using the exposure and intake parameters
for the three receptors, and the toxicity factors. The RBCs are the threshold concentrations that
equate to an ELCR of 1E-06 or the HI of 1. The RBC calculation equations are as follows:

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Attachment 10B - TTU Human Health Risk Assessment
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EOD Personnel - Carcinogenic Inhalation RBC
RBC (mg/M3) = TR_EOD*BW_EOD*ATc_EOD*365
EF_EOD_Air*ED_EOD_Air*SFi*IRa_EOD_Air
where
TR_EOD = Target Risk (1 x 10-6)
ATc_EOD = Carcinogenic averaging time (70 yrs)
BW_EOD = Body weight (70 Kg)
EF_EOD_Air = Exposure frequency (250 days/yr)
ED_EOD_Air = Exposure duration (20 yr)
SFi = Inhalation slope factor (mg/Kg-day)
IRa_EOD_Air = Air inhalation rate (0.0216 M3/day)
EOD Personnel - Non-carcinogenic Inhalation RBC
RBC (mg/M3) = THI_EOD*BW_EOD*ATn_EOD*365
EF_EOD_Air*ED_EOD_Air/RfDi*IRa_EOD_Air
where
THI_EOD = Target hazard index (1)
ATn_EOD = Non-carcinogenic averaging time (20 yrs)
BW_EOD = Body weight (70 Kg)
EF_EOD_Air = Exposure frequency (250 days/yr)
ED_EOD = Exposure duration (20 yr)
RfDi = Inhalation reference dose (mg/Kg-day)
IRa_EOD_Air = Air inhalation rate (0.0216 M3/day)

Boater - Carcinogenic Inhalation RBC
RBC (mg/M3) = TR_REC*BW_REC*ATc_REC*365
EF_REC_Air*ED_REC_Air*SFi*IRa_REC_Air
where
TR_REC = Target Risk (1 x 10-6)
ATc_REC = Carcinogenic averaging time (70 yrs)
BW_REC = Body weight (70 Kg)
EF_REC_Air = Exposure frequency (104 days/yr)
ED_REC_Air = Exposure duration (20 yr)
SFi = Inhalation slope factor (mg/Kg-day)
IRa_REC_Air = Air inhalation rate (0.96 M3/day)
Utah Test and Training Range
Attachment 10B - TTU Human Health Risk Assessment
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Boater - Non-carcinogenic Inhalation RBC
RBC (mg/M3) = THI_REC*BW_REC *ATn_ REC *365
EF_REC_Air*ED_REC_Air/RfDi*IRa_REC_Air
where
THI_REC = Target hazard index (1)
ATn_REC = Non-carcinogenic averaging time (20 yrs)
BW_REC = Body weight (70 Kg)
EF_REC_Air = Exposure frequency (104 days/yr)
ED_REC = Exposure duration (20 yr)
RfDi = Inhalation reference dose (mg/Kg-day)
IRa_REC_Air = Air inhalation rate (0.96 M3/day)

Oasis Resident - Carcinogenic Inhalation RBC
RBC (mg/M3) = TR_RES*BW_RES*ATc_RES*365
EF_RES_Air*ED_RES_Air*SFi*IRa_RES_Air
where
TR_RES = Target Risk (1 x 10-6)
ATc_RES = Carcinogenic averaging time (70 yrs)
BW_RES = Body weight (70 Kg)
EF_RES_Air = Exposure frequency (250 days/yr)
ED_RES = Exposure duration (30 yr)
SFi = Inhalation slope factor (mg/Kg-day)
IRa_RES_Air = Air inhalation rate (1.38 M3/day)
Oasis Resident - Non-carcinogenic Inhalation RBC
RBC (mg/M3) = THI_RES*BW_RES*ATn_RES*365
EF_RES_Air*ED_RES_Air/RfDi*IRa_RES_Air
where
THI_RES = Target hazard index (1)
ATn_RES = Non-carcinogenic averaging time (20 yrs)
BW_RES = Body weight (70 Kg)
EF_RES_Air = Exposure frequency (250 days/yr)
ED_RES = Exposure duration (20 yr)
RfDi = Inhalation reference dose (mg/Kg-day)
IRa_RES_Air = Air inhalation rate (0.0216 M3/day)
Appendices D, E, and F present a comprehensive list of RBCs for the three receptors.

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Attachment 10B - TTU Human Health Risk Assessment
Issued DRAFT
10B-18

▪ 5.4.4 Risk Characterization
The risks for each COC were calculated using the chemical-specific emission rates and RBCs as
follows:
ELCR = EPC/RBC x 10-6
HI = EPC/RBC
The individual chemical risks were then added for each receptor. The total risks are provided in
Tables 13, 14, and 15 for the EOD personnel, boater and the Oasis resident, respectively. These
tables relate to Tables 8, 9, and 10 in the original permit.
The tables indicate that the estimated risks are well within the general risk acceptance range of
1x10-6 to 1x10-4 cancer incidence rate or HI of 1 (EPA, 1991). Updates in the toxicity values,
availability of new values and adoption of oral toxicity values for inhalation across the board
make the current risk estimates somewhat higher than the previously estimated risks;
nonetheless, the risks are acceptable. The EOD person has the highest risk potential out of the
three receptors evaluated. An ELCR of 6E-6 and HI of 0.12 are predicted for the EOD personnel.
The risks for the boater (ELCR = 3E-6 and HI = 0.06) and the resident (ELCR = 3E-6 and
HI= 0.03) are lower than the estimates for the EOD person.
On a chemical-specific basis, cadmium is the major risk contributor (~90 percent of the
carcinogenic risk and ~50 percent of the non-carcinogenic risk). Although cadmium was
modeled as potential emission from the OB/OD operations, the actual soil data surrounding the
test area do not indicate elevated levels of cadmium. Further, cadmium is not known to be a
significant component of the OB/OD items. It is likely that the air risk estimates may be
exaggerated.
Based on the evaluations of the soil data and the air emissions, it appears that continuation of the
OB/OD operations will not cause undue harm to the workers and the citizen population in the
vicinity of the TTU.
Utah Test and Training Range
Attachment 10B - TTU Human Health Risk Assessment
Issued DRAFT
10B-19

6.0 References
Bjorklund, Bowers, Dodd and White. 1998. Open Burn/Open Detonation Dispersion Model
(OBODM). U.S. Army Dugway Proving Ground, Dugway, Utah.
EPA. 1991. “Risk Assessment Guidance for Superfund,” Volume 1: Human Health Evaluation
Manual (Part B) – Development of Risk-Based Preliminary Remediation Goals,
EPA9285.7-01B. EPA/540/R-92/003.
EPA. 1998. Emission Factors for the Disposal of Energetic Materials by Open Burning and
Open Detonation (OB/OD). W. J. Mitchell and J.C. Suggs, U.S. Environmental
Protection Agency, MD-46 Research Triangle Park, NC. August 1998. EPA/600/R-
98/103.
EPA. 2001a, as amended. Supplemental Guidance for Developing Soil Screening Levels for
Superfund Sites. OSWER Directive 9355.4-24.
EPA. 2001b, as amended. “Risk Assessment Guidance for Superfund,” Volume I: Human Health
Evaluation Manual (Part E) – Supplemental Guidance for Dermal Risk Assessment,
EPA/540/R/00/005.
EPA. 2002. Draft Final Open Burning/Open Detonation Permitting Guidelines. Prepared for
EPA by Tetra Tech, Inc., EPA February 2002.
EPA. 2004. ProUCL Software. EPA Technical Support Center, Las Vegas, Nevada.
Hill Air Force Base. 2005. Utah Test and Training Range – Waste Characterization Evaluation
for the Thermal Treatment Unit.
SAS Institute. 1999. SAS/STAT User’s Guide, Version 8. SAS Institute, Cary, NC.
Schacklette H.T.and J.G. Boerngen. 1984. Element concentrations in soils and other surficial
materials of the conterminous United States. U.S. Geological Survey, Prof. Paper 1270,
Washington, DC., 1984.
U.S. Army. 1992. “Development of Methodology and Technology for “Group III Release
Assessment Report” Identifying and Quantifying Emission Products from Open Burning
and Open Detonation Thermal Treatment Methods,” Volume 1: Test Summary.
Headquarters U.S. Army Armament, Munitions, and Chemical Command. January 1992.
URS. September 2004. Release Assessment Report, Group III Sites, Utah Test and Training
Range-North.
Tables
Utah Test and Training Range
Attachment 10B - TTU Human Health Risk Assessment
Issued
10B-21
TABLE 1
TTU Groundwater Monitoring Well Sampling Results
TABLE 2
Chemical Analysis of Pre-Treatment Water from UTTR-North Production Wells
TABLE 3
Chemicals of Concern in Surface Soil
TABLE 4
Data Distribution, Upper Confidence Limits and Exposure Point Concentrations for Surface Soil
TABLE 5
Intake and Exposure Parameters
TABLE 6
Toxicity Factors for Chemicals Detected in Surface Soil
TABLE 7
Summary of Human Health Risks from Surface Soils – Industrial Worker Scenario
TABLE 8
USGS Background Surface Soil Data for Selected Metals
TABLE 9
Descriptive Statistics for Selected Metals in Utah Background Surface Soils
TABLE 10
Updated Toxicity Factors for Air Emissions
TABLE 11
New Toxicity Factors for Air Emissions
TABLE 12
Changes in Toxicity Factors for Air Emissions
TABLE 13
Estimating Risk to EOD Personnel on Bug Knoll (Permit Table 8)
TABLE 14
Estimating Risk to Boater on the Great Salt Lake (Permit Table 9)
TABLE 15
Estimating Risk to Oasis Resident (Permit Table 10)
TABLE 1
TTU Groundwater Monitoring Well Sampling Results
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
WELL ENERGETICS (ug/L) CALCIUM IRON MAGNESIUM MANGANESE POTASSIUM SODIUM ZINC
3-Feb-1994 59.0 0.085 24.5 0.023 36.4 314.0 ND
TTU-1 ND 1116.0 0.200 58.8 0.017 36.1 371.0 ND
11-Apr-1994 TTU-1 ND 61.8 ND 23.4 ND 31.2 ND ND
TTU-2 ND 115.0 ND 57.9 ND 33.4 355.0 ND
26-Jul-1994 TTU-1 ND 56.9 0.075 24.7 ND 39.1 318.0 ND
TTU-2 ND 112.0 ND 61.2 ND 37.3 367.0 ND
18-Oct-1994 TTU-1 ND 68.3 ND 27.5 ND 38.5 319.0 ND
TTU-2 ND 116.0 ND 61.2 ND 36.2 366.0 ND
3-Mar-1995 TTU-1 Nitrobenzene 0.25 61.1 ND 26.2 ND 37.4 320.0 ND
TTU-2 N 119.0 ND 61.3 ND 36.2 371.0 ND
28-Apr-1995 TTU-1 N 58.7 0.120 24.6 ND 36.4 309.0 0.019
TTU-2 ND 115.0 ND 61.0 ND 36.1 367.0 ND
27-Jul-1995 d TTU-1 -- ----- -
TTU-2 -- ----- -
23-Oct-1995 TTU-1 ND 58.5 ND 24.6 ND 36.1 307.0 0.010
TTU-2 e ND 107.0 ND 54.6 ND 31.9 325.0 0.230
4-Apr-1996 TTU-1 e ND 54.4 ND 23.0 ND 33.9 282.0 0.014
TTU-2 e ND 105.0 ND 54.9 ND 32.5 330.0 0.160
Jul-1996 TTU-1 ND 63.0 - 27.0 -38.0 320.0 -
TTU-2 *120.0 - 61.0 -36.0 360.0 -
Oct-1996 TTU-1 ND
Pump
problems -
Pump
problems -
Pump
problems
Pump
problems
Pump
problems
TTU-2 *120.0 - 64.0 -37.0 380.0 65.000
12-Jan-1997 TTU-1 e ND 61.8 ND 26.2 ND 37.1 322.0 ND
TTU-2 e ND 119.0 ND 61.3 ND 35.6 371.0 0.330
26-Apr-1997 TTU-1 e ND 62.1 ND 25.7 ND 36.5 304.0 0.084
TTU-2 e ND 108.0 ND 57.7 ND 33.8 335.0 0.014
21-Oct-1997 TTU-1 ND 64.6 0.086 26.1 0.01 36.1 296.0 0.064
TTU-2 ND 113.0 ND 58.1 ND 35.7 342.0 0.011
Apr-1998 TTU-1 ND 68.0 - 28.0 37.0 310.0 22 (J)
TTU-2 ND 110.0 - 60.0 35.0 360.0 34.000
Oct-1998 TTU-1 ND 62.0 - 26.0 36.0 300.0 29.000
TTU-2 ND 110.0 - 61.0 35.0 360.0 27.000
15-Apr-1999 TTU-1 ND 66.9 ND 27.6 0.003 35.5 302.0 0.019
TTU-2 ND 106.0 0.047 59.3 0.004 33.8 345.0 0.023
20-Oct-1999 TTU-1 ND 63.3 0.164 27.2 0.0029 35.2 309.0 0.0657
TTU-2 ND 109.0 0.043 59.9 0.0016 34.0 359.0 0.078
5-Apr-2000 TTU-1
TNT f 63.9 0.018 27.7 ND 36.9 315.0 0.017
TTU-2 TNT f 108.0 0.032 60.5 0.003 35.0 358.0 0.0061
17-Oct-2000 TTU-1 ND 58.1 68.600 26.2 0.0017 35.8 304.0 0.0077
TTU-2 ND 115.0 0.029 63.7 0.0032 35.9 375.0 ND
18-Apr-2001 TTU-1 ND 66.6 0.026 27.6 ND 35.4 295.0 0.056
TTU-2 ND 102.0 0.014 55.0 ND 31.6 323.0 0.12
22-Oct-2001 TTU-1 ND 63.7 0.020 28.6 0.0028 36.6 314.0 0.027
TTU-2 ND 110.0 ND 61.1 0.0023 34.8 364.0 0.072
18-Apr-2002 TTU-1 ND 62.2 ND 27.0 0.0034 34.0 301.0 0.041
TTU-2 ND 110.0 ND 59.9 0.0026 32.9 353.0 0.018
28-Oct-2002 TTU-1 ND 59.0 ND 26.0 0.0041 35.0 300.0 0.031
TTU-2 ND 110.0 0.039 58.0 0.0047 34.0 350.0 0.022
1-May-2003 TTU-1 ND 63.0 ND 30.0 0.0021 41.0 320.0 0.015
TTU-2 ND 120.0 0.042 64.0 0.0035 40.0 380.0 0.014
21-Dec-2004 TTU-1 Perchlorate 0.6230 ug/l - 0.019 ---- 0.00361
TTU-2 Perchlorate 0.5020 ug/l - 0.039 ---- 0.00421Notes:
METALSb (mg/L)DATE
e Sampled for dissolved metals.
f TNT was also detected in the method blank indicating that the laboratory was the source of the compound.
*Several energetic compounds were detected in well TTU-2 in July 1996. These included 4-Amino-2,6-dinitortoluene, HMX, nitroguanadine, and TNT.
PETN was also detected in well TTU-2 in October 1996. Because of the high concentrations found (1,510 ug/L HMX in July 1996), and lack of
detection in later sampling, it is believed that these samples were contaminated in the field.
a Picric acid; nitroglycerine; PETN; nitro guanidine; nitrobenzene; 2,4-DNT; 2,6-DNT; 2,4,6-TNT; RDX; HMX; 2-amino-4,6-DNT.
b Aluminum, antimony, arsenic, barium, beryllium, cadmium, calcium, chromium, cobalt, copper, iron, lead, magnesium, manganese, mercury,
c High level in the equipment blank suggests this value may be biased high.
d TTU-1 and TTU-2 not sampled.
JMS/E082005010SLC PAGE 1 OF 1
TABLE 2
Chemical Analysis of Pre-Treatment Water from UTTR-North Production Wells
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Test EPA Method
Well No. 1 (mg/L)Well No. 2 (mg/L)
Sodium 200.7 2797.87 1901.23
Antimony 204.2 0.08 0.008
Arsenic 206.2 0.11 0.076
Barium 200.7 <0.100 <0.100
Beryllium 210.2 <0.001 <0.001
Cadmium 213.2 0.001 0.001
Calcium 200.7 60.4 32
Chromium 200.7 <0.050 <0.050
Magnesium 200.7 117 76
Hardness —631 395.5
Iron 200.7 0.389 0.215
Manganese 200.7 <0.050 <0.050
Mercury 295.2 <0.001 <0.001
Nickel 200.7 <0.050 <0.050
Potassium 200.7 80 63
Selenium 270.2 1.005 0.788
Silver 200.7 <0.005 <0.005
Thallium 279.2 <0.002 <0.002
Zinc 200.7 0.09 0.177
Lead 239.2 0.01 0.06
Copper 200.7 <0.020 <0.020
Oil and Grease 413 0.3 0.3
Nitrate 353.2 8.4 2.6
Nitrite 353.2 <0.200 <0.020
Cyanide 335.3 0.005 <0.005
Chloride 325.2 3480 4400
Fluoride 380.76 4.8 6
Sulfate 300.1 540 660
Source: Armstrong Laboratory, Brooks AFB, TX, Reports of Analysis, May-Sep 1993.
JMS/E082005001SLC PAGE 1 OF 1
TABLE 3
Chemicals of Concern in Surface Soil
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Analyte CASNo Units
TotalSamples TotalDetects
1,2,3-Trichlorobenzene 87-61-6 mg/Kg 22 1
1,2,4-Trichlorobenzene 120-82-1 mg/Kg 27 1
1,2-Dichlorobenzene 95-50-1 mg/Kg 27 1
1,3-Dichlorobenzene 541-73-1 mg/Kg 27 1
1,4-Dichlorobenzene 106-46-7 mg/Kg 27 1
2,4-Dinitrotoluene 121-14-2 mg/Kg 47 1
2-Butanone 78-93-3 mg/Kg 22 4
2-Methylnaphthalene 91-57-6 mg/Kg 27 3
Acetone 67-64-1 mg/Kg 27 9
Aluminum 7429-90-5 mg/Kg 47 47
Anthracene 120-12-7 mg/Kg 27 1
Antimony 7440-36-0 mg/Kg 27 22
Arsenic 7440-38-2 mg/Kg 47 27
Barium 7440-39-3 mg/Kg 47 47
Benzene 71-43-2 mg/Kg 22 3
Beryllium 7440-41-7 mg/Kg 47 23
bis(2-ethylhexyl)phthalate 117-81-7 mg/Kg 27 5
Cadmium 7440-43-9 mg/Kg 47 21
Calcium 7440-70-2 mg/Kg 42 42
Chloride mg/Kg 42 30
Chromium 7440-47-3 mg/Kg 47 47
Cobalt 7440-48-4 mg/Kg 27 22
Copper 7440-50-8 mg/Kg 47 41
Dibenzofuran 132-64-9 mg/Kg 27 3
Ethylbenzene 100-41-4 mg/Kg 22 1
Fluoranthene 206-44-0 mg/Kg 27 1
Fluorene 86-73-7 mg/Kg 27 3
Iron 7439-89-6 mg/Kg 42 42
Lead 7439-92-1 mg/Kg 47 40
m,p-Xylenes 1330-20-7 mg/Kg 22 1
Magnesium 7439-95-4 mg/Kg 42 42
Manganese 7439-96-5 mg/Kg 47 47
Mercury 7439-97-6 mg/Kg 47 13
Methylene chloride 75-09-2 mg/Kg 22 1
Molybdenum 7439-98-7 mg/Kg 22 20
Naphthalene 91-20-3 mg/Kg 27 6
Nickel 7440-02-0 mg/Kg 47 47
Nitrate 14797-55-8 mg/Kg 47 43
Nitroguanidine 556-88-7 mg/Kg 42 2
Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine 2691-41-0 mg/Kg 42 13
o-Xylene 95-47-6 mg/Kg 22 3
Perchlorate 7601-90-3 mg/Kg 22 11
Phenanthrene 85-01-8 mg/Kg 27 4
Phosphorus 7723-14-0 mg/Kg 20 20
Picric acid 88-89-1 mg/Kg 42 3
Potassium 7440-09-7 mg/Kg 42 42
Silver 7440-22-4 mg/Kg 47 4
Sodium 7440-23-5 mg/Kg 42 42
Strontium 7440-24-6 mg/Kg 22 22
Styrene 100-42-5 mg/Kg 21 2
Sulfate mg/Kg 42 23
Thallium 7440-28-0 mg/Kg 47 26
Toluene 108-88-3 mg/Kg 22 5
Total petroleum hydrocarbons mg/Kg 5 5
Vanadium 7440-62-2 mg/Kg 27 27
Zinc 7440-66-6 mg/Kg 47 47
Zinc 7440-66-6 mg/Kg 50 50
JMS/E082005001SLC PAGE 1 OF 1
TABLE 4
Data Distribution, Upper Confidence Limits and Exposure Point Concentrations for Surface Soil
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Scenario Analyte Units Number ofSamples Number ofDetects DetectionFrequency MaximumDetect DataDistributiona 95UCL
ExposurePointConcentration(EPC)b EPCBasisc
SS_Ind_Std 1,2,3-Trichlorobenzene mg/Kg 22 1 4.5% 0.003 NON-PARAMETRIC 7.25E-04 0.003 Max
SS_Ind_Std 1,2,4-Trichlorobenzene mg/Kg 28 1 3.7% 0.003 NON-PARAMETRIC 2.02 0.003 Max
SS_Ind_Std 1,2-Dichlorobenzene mg/Kg 28 1 3.7% 0.001 NON-PARAMETRIC 2.01 0.001 Max
SS_Ind_Std 1,3-Dichlorobenzene mg/Kg 28 1 3.7% 0.002 NON-PARAMETRIC 2.01 0.002 Max
SS_Ind_Std 1,4-Dichlorobenzene mg/Kg 28 1 3.7% 0.003 NON-PARAMETRIC 2.01 0.003 Max
SS_Ind_Std 2,4-Dinitrotoluene mg/Kg 48 1 2.1% 2.00 NON-PARAMETRIC 4.70 2.00 Max
SS_Ind_Std 2-Butanone mg/Kg 22 4 18.2% 0.016 NON-PARAMETRIC 0.008 0.016 Max
SS_Ind_Std 2-Methylnaphthalene mg/Kg 28 3 11.1% 170 NON-PARAMETRIC 97.0 170 Max
SS_Ind_Std Acetone mg/Kg 28 9 33.3% 24.0 NON-PARAMETRIC 11.5 11.5 UCL
SS_Ind_Std Aluminum mg/Kg 48 47 100.0% 54,000 GAMMA 14,575 14,575 UCL
SS_Ind_Std Anthracene mg/Kg 28 1 3.7% 3.60 NON-PARAMETRIC 4.79 3.60 Max
SS_Ind_Std Antimony mg/Kg 28 22 81.5% 167 NON-PARAMETRIC 67.0 67.0 UCL
SS_Ind_Std Arsenic mg/Kg 48 27 57.4% 41.3 NON-PARAMETRIC 7.75 7.75 UCL
SS_Ind_Std Barium mg/Kg 48 47 100.0% 640 NON-PARAMETRIC 224 224 UCL
SS_Ind_Std Benzene mg/Kg 22 3 13.6% 0.004 NON-PARAMETRIC 0.002 0.004 Max
SS_Ind_Std Beryllium mg/Kg 48 23 48.9% 0.720 NON-PARAMETRIC 0.567 0.567 UCL
SS_Ind_Std Bis(2-ethylhexyl)phthalate mg/Kg 28 5 18.5% 1.50 NON-PARAMETRIC 4.27 1.50 Max
SS_Ind_Std Cadmium mg/Kg 48 21 44.7% 32.0 NON-PARAMETRIC 7.80 7.80 UCL
SS_Ind_Std Calcium mg/Kg 42 42 100.0% 1.56E+06 NON-PARAMETRIC 387,630 387,630 UCL
SS_Ind_Std Chloride mg/Kg 42 30 71.4% 120,000 NON-PARAMETRIC 1.07E+06 1.07E+06 UCL
SS_Ind_Std Chromium mg/Kg 48 47 100.0% 55.3 GAMMA 16.0 16.0 UCL
SS_Ind_Std Cobalt mg/Kg 28 22 81.5% 4.90 NORMAL 3.13 3.13 UCL
SS_Ind_Std Copper mg/Kg 48 41 87.2% 18,000 NON-PARAMETRIC 4,155 4,155 UCL
SS_Ind_Std Dibenzofuran mg/Kg 28 3 11.1% 12.0 NON-PARAMETRIC 6.66 12.0 Max
SS_Ind_Std Ethylbenzene mg/Kg 22 1 4.5% 0.001 NON-PARAMETRIC 5.63E-04 0.001 Max
SS_Ind_Std Fluoranthene mg/Kg 28 1 3.7% 0.144 NON-PARAMETRIC 7.42 0.144 Max
SS_Ind_Std Fluorene mg/Kg 28 3 11.1% 33.0 NON-PARAMETRIC 18.5 33.0 Max
SS_Ind_Std Iron mg/Kg 42 42 100.0% 15,000 GAMMA 11,423 11,423 UCL
SS_Ind_Std Lead mg/Kg 48 40 85.1% 48,000 NON-PARAMETRIC 11,009 11,009 UCL
SS_Ind_Std m,p-Xylene mg/Kg 10 1 10.0% 0.002 NON-PARAMETRIC 9.65E-04 0.002 Max
SS_Ind_Std Magnesium mg/Kg 42 42 100.0% 24,300 GAMMA 17,809 17,809 UCL
SS_Ind_Std Manganese mg/Kg 48 47 100.0% 519 GAMMA 350 350 UCL
SS_Ind_Std Mercury mg/Kg 48 13 27.7% 0.070 NON-PARAMETRIC 0.032 0.032 UCL
SS_Ind_Std Methylene chloride mg/Kg 22 1 4.5% 0.003 NON-PARAMETRIC 0.001 0.003 Max
SS_Ind_Std Molybdenum mg/Kg 22 20 90.9% 17.0 NON-PARAMETRIC 4.93 4.93 UCL
SS_Ind_Std Naphthalene mg/Kg 28 6 22.2% 53.0 NON-PARAMETRIC 9.95 9.95 UCL
SS_Ind_Std Nickel mg/Kg 48 47 100.0% 41.3 NON-PARAMETRIC 12.7 12.7 UCL
SS_Ind_Std Nitrate mg/Kg 48 43 91.5% 22.8 NON-PARAMETRIC 12.8 12.8 UCL
SS_Ind_Std Nitroguanidine mg/Kg 42 2 4.8% 0.300 NON-PARAMETRIC 0.501 0.300 Max
SS_Ind_Std Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine mg/Kg 42 13 31.0% 25.0 NON-PARAMETRIC 8.12 8.12 UCL
SS_Ind_Std o-Xylene mg/Kg 22 3 13.6% 0.003 NON-PARAMETRIC 0.001 0.003 Max
SS_Ind_Std Perchlorate mg/Kg 22 11 50.0% 4.50 NON-PARAMETRIC 2.73 2.73 UCL
SS_Ind_Std Phenanthrene mg/Kg 28 4 14.8% 92.0 NON-PARAMETRIC 49.1 92.0 Max
SS_Ind_Std Phosphorus mg/Kg 20 20 100.0% 990 NORMAL 722 722 UCL
SS_Ind_Std Picric acid mg/Kg 42 3 7.1% 0.500 NON-PARAMETRIC 0.248 0.500 Max
JMS/E082005001SLC PAGE 1 OF 2
TABLE 4
Data Distribution, Upper Confidence Limits and Exposure Point Concentrations for Surface Soil
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Scenario Analyte Units Number ofSamples Number ofDetects DetectionFrequency MaximumDetect DataDistributiona 95UCL
ExposurePointConcentration(EPC)b EPCBasisc
SS_Ind_Std Potassium mg/Kg 42 42 100.0% 490,000 NON-PARAMETRIC 66,223 66,223 UCL
SS_Ind_Std Silver mg/Kg 48 4 8.5% 4.00 NON-PARAMETRIC 1.01 4.00 Max
SS_Ind_Std Sodium mg/Kg 42 42 100.0% 2,020 GAMMA 1,047 1,047 UCL
SS_Ind_Std Strontium mg/Kg 22 22 100.0% 484 NORMAL 377 377 UCL
SS_Ind_Std Styrene mg/Kg 22 2 9.5% 0.003 NON-PARAMETRIC 0.001 0.003 Max
SS_Ind_Std Sulfate mg/Kg 42 23 54.8% 3,060 NON-PARAMETRIC 989 989 UCL
SS_Ind_Std Thallium mg/Kg 48 26 55.3% 0.550 NON-PARAMETRIC 2.80 2.80 UCL
SS_Ind_Std Toluene mg/Kg 22 5 22.7% 0.019 NON-PARAMETRIC 0.014 0.014 UCL
SS_Ind_Std Total petroleum hydrocarbons mg/Kg 6 5 100.0% 47,000 GAMMA 328,216 328,216 UCL
SS_Ind_Std Vanadium mg/Kg 28 27 100.0% 25.7 NORMAL 17.8 17.8 UCL
SS_Ind_Std Zinc mg/Kg 48 47 100.0% 2,300 NON-PARAMETRIC 337 337 UCL
a Data distribution determined with EPA's ProUCL software, 2005.
b EPC = Exposure Point concentration. It is the maximum detect if the detection frequncy is less than 20%, otherwise it the 95 percent upper confidence limit from ProUCL.
c EPC Basis: Max = maximum detected, UCL = 95UCL from ProUCL.
JMS/E082005001SLC PAGE 2 OF 2
TABLE 5
Intake and Exposure Parameters
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment Surface SoilIndustrialWorker Resident EODWorker BoaterIntake and Exposure Parameter Units Value Value Value Value
Target Excess Lifetime Cancer Risk (TR) -- 1.00E-06 1.00E-06 1.00E-06 1.00E-06
Target Hazard Index (THI) -- 1 1 1 1
Body Weight Adult (BW) Kg 70 70 70 70
Body Weight Child (BWc) Kg -- 15 -- NA
Averaging Time, Cancer (ATc) yrs 70 70 70 70
Averaging Time, Non-Cancer (ATn) - For Air Emissions Only yrs NA 30 20 20
Averaging Time, Non-Cancer (ATn) - Adult yrs 25 24 NA NA
Averaging Time, Non-Cancer - Child (Atn-c) yrs -- 6 NA NA
Exposure Frequency (EF) - For Air Emissions Only days/yr NA 250 250 104
Exposure Frequency (EF) days/yr 250 350 NA NA
Exposure Duration (ED) - For Air Emissions Only yrs NA 30 20 20
Exposure Duration (ED) - Adult yrs 25 24 NA
Exposure Duration - Child (ED-c) yrs -- 6 -- NA
Soil Ingestion Rate - Adult (IRs) mg/day 100 100 NA
Soil Ingestion Rate (IRs) - age adjusted mg-yr/Kg-day 114 -- NA
Soil Ingestion Rate - Child (IRs-c) mg/day -- 200 -- NA
Air Inhalation Rate - Adult (IRa) - For Air Emissions only M3/day NA 1.38 0.0216 0.96
Air Inhalation Rate - Adult (IRa)M3/day 20 20 NA NA
Air Inhalation Rate (IRa) - age adjusted M3-yr/Kg-day -- 10.9 -- NA
Air Inhalation Rate - Child (IRa-c)M3/day --10 --NA
Particulate Emission Factor (PEF)M3/Kg 5.11E+07 1.17E+09 NA
Volatilization Factor, Soil (VF)M3/Kg chem-spec chem-spec chem-spec chem-spec
Skin Surface Area - Adult (SA)cm2/day 3300 5700 NA NA
Skin Surface Area/adherence Factor(SA) - age adjusted mg-yr/Kg-Event -- 361 -- NA
Skin Surface Area - Child (SA)cm2/day -- 2800 -- NA
Adherence Factor Adult (AF)mg/cm2/event 0.2 0.07 NA NA
Event Frequency, EV -- 1 1 NA NA
Adherence Factor Child (AF)mg/cm2 --0.2 --NA
Absorption Factor, Metals (ABSm)-- chem-spec chem-spec chem-spec chem-spec
Absorption Factor, SVOA (ABSs)--0.1 0.1 NA NA
Absorption Factor, VOA (ABSv)-- chem-spec chem-spec chem-spec chem-spec
Air Emissions
JMS/E082005001SLC PAGE 1 OF 1
TABLE 6
Toxicity Factors for Chemicals Detected in Surface Soil
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Chemical CASNo 2005_SFo(Kg-day/mg)2005_SFi(Kg-day/mg)2005_RfDo(mg/Kg-day)2005_RfDi(mg/Kg-day)
1,2,3-Trichlorobenzene 87-61-6
1,2,4-Trichlorobenzene 120-82-1 0.0100 0.0010
1,2-Dichlorobenzene 95-50-1 0.0900 0.0400
1,3-Dichlorobenzene 541-73-1 0.0030 0.0030
1,4-Dichlorobenzene 106-46-7 0.0240 0.0220 0.0300 0.2290
2,4-Dinitrotoluene 121-14-2 0.0020 0.0020
2-Butanone 78-93-3 0.6000 1.4000
2-Methylnaphthalene 91-57-6 0.0040 0.0040
Acetone 67-64-1 0.9000 0.9000
Aluminum 7429-90-5 1.0000 0.0010
Anthracene 120-12-7 0.3000 0.3000
Antimony 7440-36-0 0.0004 0.0004
Arsenic 7440-38-2 1.5000 15.1000 0.0003 0.0003
Barium 7440-39-3 0.0700 0.0001
Benzene 71-43-2 0.0550 0.0270 0.0040 0.0086
Beryllium 7440-41-7 8.4000 0.0020 0.0000
bis(2-ethylhexyl)phthalate 117-81-7 0.0140 0.0140 0.0200 0.0200
Cadmium 7440-43-9 6.3000 0.0010 0.0001
Calcium 7440-70-2
Chloride
Chromium 7440-47-3 1.5000 1.5000
Cobalt 7440-48-4 9.8000 0.0200 0.0000
Copper 7440-50-8 0.0400 0.0400
Dibenzofuran 132-64-9 0.0020 0.0020
Di-n-octylphthalate 117-84-0 0.0400 0.0400
Ethylbenzene 100-41-4 0.1000 0.2900
Fluoranthene 206-44-0 0.0400 0.0400
Fluorene 86-73-7 0.0400 0.0400
Iron 7439-89-6 0.3000 0.3000
Lead 7439-92-1
m,p-Xylenes 1330-20-7 0.2000 0.0300
Magnesium 7439-95-4
Manganese 7439-96-5 0.1400 0.0000
Mercury 7439-97-6 0.0001
Methylene chloride 75-09-2 0.0075 0.0017 0.0600 0.3000
Molybdenum 7439-98-7 0.0050 0.0050
Naphthalene 7440-02-0 0.0200 0.0200
Nitrate 14797-55-8 1.6000 1.6000
Nitroguanidine 556-88-7 0.1000 0.1000
n-Nitrosodiphenylamine 91-20-3 0.0200 0.0009
Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine 2691-41-0 0.0500 0.0500
o-Xylene 95-47-6 0.2000 0.0300
Perchlorate 7601-90-3 0.0007 0.0007
Phenanthrene 85-01-8
Phosphorus 7723-14-0 0.00002 0.00002
Picric acid 88-89-1
Potassium 7440-09-7
Silver 7440-22-4 0.0050 0.0050
Sodium 7440-23-5
Strontium 7440-24-6 0.6000 0.6000
Styrene 100-42-5 0.2000 0.2860
Sulfate
Thallium 7440-28-0 0.0001 0.0001
Toluene 108-88-3 0.2000 0.1140
Total petroleum hydrocarbons
Vanadium 7440-62-2 0.0010 0.0010
Zinc 7440-66-6 0.3000 0.3000
Sfo = Oral slope Factor, Sfi = Inhalation Slope Factor, RfDo = Oral Reference dose, RfDi - Inhalation Reference Dose
Source: EPA Integreted Risk Information System (IRIS), May 2005.
JMS/E082005001SLC PAGE 1 OF 1
TABLE 7
Summary of Human Health Risks from Surface Soils - Industrial Worker Scenario
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Scenario Analyte Units
ExposurePointConcentration(EPC)a CarcinogenicRBCb ELCRc % ELCR
Non-carcinogenicRBCb HId % HI
SS_Ind_Std 1,2,4-Trichlorobenzene mg/Kg 0.003 9,835 3.25E-07 0.0%
SS_Ind_Std 1,2-Dichlorobenzene mg/Kg 0.001 91,177 1.54E-08 0.0%
SS_Ind_Std 1,3-Dichlorobenzene mg/Kg 0.002 3,054 6.22E-07 0.0%
SS_Ind_Std 1,4-Dichlorobenzene mg/Kg 0.003 119 3.E-11 0.0% 30,644 1.01E-07 0.0%
SS_Ind_Std 2,4-Dinitrotoluene mg/Kg 2.00 2,036 9.82E-04 0.1%
SS_Ind_Std 2-Butanone mg/Kg 0.016 612,173 2.60E-08 0.0%
SS_Ind_Std 2-Methylnaphthalene mg/Kg 170 2,196 0.077 11.5%
SS_Ind_Std Acetone mg/Kg 11.5 916,214 1.25E-05 0.0%
SS_Ind_Std Aluminum mg/Kg 14,575 207,982 0.070 10.4%
SS_Ind_Std Anthracene mg/Kg 3.60 164,669 2.19E-05 0.0%
SS_Ind_Std Antimony mg/Kg 67.0 407 0.165 24.5%
SS_Ind_Std Arsenic mg/Kg 7.75 1.54 5.E-06 97.6% 255 0.030 4.5%
SS_Ind_Std Barium mg/Kg 224 24,194 0.009 1.4%
SS_Ind_Std Benzene mg/Kg 0.004 51.9 8.E-11 0.0% 4,081 1.00E-06 0.0%
SS_Ind_Std Beryllium mg/Kg 0.567 87.0 7.E-09 0.1% 861 6.59E-04 0.1%
SS_Ind_Std bis(2-ethylhexyl)phthalate mg/Kg 1.50 204 7.E-09 0.1% 20,360 7.37E-05 0.0%
SS_Ind_Std Cadmium mg/Kg 7.80 116 7.E-08 1.3% 956 0.008 1.2%
SS_Ind_Std Chromium mg/Kg 16.0 1.53E+06 1.05E-05 0.0%
SS_Ind_Std Cobalt mg/Kg 3.13 74.6 4.E-08 0.8% 1,387 0.002 0.3%
SS_Ind_Std Copper mg/Kg 4,155 40,721 0.102 15.2%
SS_Ind_Std Dibenzofuran mg/Kg 12.0 2,036 0.006 0.9%
SS_Ind_Std Ethylbenzene mg/Kg 0.001 102,062 1.27E-08 0.0%
SS_Ind_Std Fluoranthene mg/Kg 0.144 21,956 6.56E-06 0.0%
SS_Ind_Std Fluorene mg/Kg 33.0 21,956 0.002 0.2%
SS_Ind_Std Iron mg/Kg 11,423 305,405 0.037 5.6%
SS_Ind_Std m,p-Xylenes mg/Kg 0.002 199,202 1.00E-08 0.0%
SS_Ind_Std Manganese mg/Kg 350 3,639 0.096 14.3%
SS_Ind_Std Mercury mg/Kg 0.032 22,456 1.42E-06 0.0%
SS_Ind_Std Methylene chloride mg/Kg 0.003 381 8.E-12 0.0% 61,272 5.22E-08 0.0%
SS_Ind_Std Molybdenum mg/Kg 4.93 5,090 9.69E-04 0.1%
SS_Ind_Std Naphthalene mg/Kg 9.95 20,360 0.000 0.1%
SS_Ind_Std Nickel mg/Kg 12.7 20,360 6.23E-04 0.1%
SS_Ind_Std Nitrate mg/Kg 12.8 1.63E+06 7.84E-06 0.0%
SS_Ind_Std Nitroguanidine mg/Kg 0.300 61,421 4.88E-06 0.0%
SS_Ind_Std Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine mg/Kg 8.12 30,711 2.64E-04 0.0%
SS_Ind_Std o-Xylene mg/Kg 0.003 199,202 1.36E-08 0.0%
JMS/E082005001SLC PAGE 1 OF 2
TABLE 7
Summary of Human Health Risks from Surface Soils - Industrial Worker Scenario
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Scenario Analyte Units
ExposurePointConcentration(EPC)a CarcinogenicRBCb ELCRc % ELCR
Non-carcinogenicRBCb HId % HI
SS_Ind_Std Perchlorate mg/Kg 2.73 713 3.83E-03 0.6%
SS_Ind_Std Silver mg/Kg 4.00 5,090 7.86E-04 0.1%
SS_Ind_Std Strontium mg/Kg 377 610,809 6.18E-04 0.1%
SS_Ind_Std Styrene mg/Kg 0.003 203,842 1.28E-08 0.0%
SS_Ind_Std Thallium mg/Kg 2.80 71.3 0.039 5.9%
SS_Ind_Std Toluene mg/Kg 0.014 203,006 7.00E-08 0.0%
SS_Ind_Std Vanadium mg/Kg 17.8 1,018 0.017 2.6%
SS_Ind_Std Zinc mg/Kg 337 305,405 0.001 0.2%5.E-06 100%0.7 100.0%7.E-08 0.4Total RiskTotal Risk Without Background Metalse
e The bolded and right-indented analytes are most likely attributable to the background.
a EPC = Exposure Point concentration. It is the maximum detect if the detection frequncy is less than 20%, otherwise it is the 95 percent upper confidence limit from ProUCL.
b RBC = Risk-based concentration. Equates to a carcinogenic risk of 1E-06 or hazard index of 1.
c ELCR = Excess Life-time Cancer Risk.
d HI = Hazard Index.
JMS/E082005001SLC PAGE 2 OF 2
TABLE 8
USGS Background Surface Soil Data for Selected Metals
Attachment 10B - Thermal Treatment Unit Human Health Risk AssessmentState County Collection Date Arsenic Manganese
UT San Juan 1-May-62 300
UT Iron 1-Feb-67 7.5 150
UT Washington 1-Feb-67 7.6 500
UT Box Elder 1-Aug-65 5.3 700
UT Box Elder 1-Aug-65 4 1000
UT Salt Lake 1-Aug-65 19 1000
UT Wasatch 1-Aug-65 3.9 300
UT Duchesne 1-Aug-65 7.5 500
UT Washington 1-Feb-67 5.4 150
UT Garfield 1-Jun-71 3.377 500
UT Grand 1-Sep-64 12 150
UT Emery 1-May-62 200
UT Millard 1-Sep-72 4.748 500
UT Millard 1-Aug-62 200
UT Millard 1-Aug-62 500
UT Millard 1-Aug-62 700
UT Sevier 1-Aug-62 700
UT Wayne 1-Aug-62 500
UT Wayne 1-Aug-62 200
UT Millard 1-Aug-64 7.1 200
UT Rich 1-Aug-64 6.4 150
UT Uintah 1-Aug-64 6.3 150
UT Grand 1-May-62 200
UT Carbon 1-Sep-73 2.907 200
UT Tooele 1-Jul-66 6.2 300
UT Tooele 1-Jul-66 9.3 700
UT Salt Lake 1-Jul-66 7 300
UT Morgan 1-Jun-65 8.9 300
UT Wasatch 1-Jun-65 4.1 700
UT Wasatch 1-Jun-65 5 300
UT Duchesne 1-Jun-65 6.5 300
UT Kane 1-Jul-64 300
UT Millard 1-Sep-74 3.797 200
UT Millard 1-Sep-72 4.403 200
UT Emery 1-Sep-73 6.734 200
UT Millard 1-Sep-72 2.734 200
UT Utah 1-Sep-73 11.95 500
UT Emery 1-May-73 20.23 300
UT Kane 1-Feb-73 3.662 300
UT Garfield 1-Feb-73 19.26 200
UT Garfield 1-Feb-73 3.574 700
UT Sevier 1-Feb-73 1.489 500
UT Grand 1-Sep-72 5.906 200
UT Emery 1-Sep-72 7.581 500
UT Sevier 1-Sep-72 4.386 100
UT Summit 1-Jul-68 48 300
UT San Juan 1-Oct-73 1.857 200
Units: mg/Kg
Data Source: Shacklette and Boerngen, 1984
JMS/E082005001SLC PAGE 1 OF 1
TABLE 9
Descriptive Statistics for Selected Metals in Utah Background Surface Soils
Attachment 10B - Thermal Treatment Unit Human Health Risk AssessmentStatisticArsenicManganese
Mean 7.99 371
Standard Error 1.33 32.9
Median 6.20 300
Mode 7.50 200
Standard Deviation 8.11 226
Sample Variance 65.8 50,951
Kurtosis 16.6 0.743
Skewness 3.70 1.16
Range 46.5 900
Minimum 1.49 100
Maximum 48.0 1,000
Sum 296 17,450
Count 37 47
Confidence Level (95.0%)2.71 66.3
95UCL 10.7 438
Data Source: Shacklette and Boerngen, 1984.
JMS/E082005001SLC PAGE 1 OF 1
TABLE 10
Updated Toxicity Factors for Air Emissions
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Chemical Permit_Chemical CASNo 1997_SFi(Kg-day/mg)2005_SFi(Kg-day/mg)1997_RfDi(mg/Kg-day)2005_RfDi(mg/Kg-day)
1,1,1-Trichloroethane Methyl chloroform 71-55-6 0.6300
1,1,2,2-Tetrachloroethane 1,1,2,2-Tetrachoroethane 79-34-5 0.2000 0.2000 0.0600
1,1,2-Trichloro-1,2,2-trifluoroethane Freon113 76-13-1 8.6000
1,1-Dichloroethene Vinylidene chloride 75-35-4 0.0600
1,2,4-Trimethylbenzene 1,2,4-Trimethylbenzene 95-63-6 0.0017
1,3,5-Trimethylbenzene 1,3,5-Trimethylbenzene 108-67-8 0.0017
1,3-Butadiene 1,3-Butadiene 106-99-0 1.8000 0.1000 0.0006
2-Nitrodiphenylamine 2-Nitrodiphenylamine 119-75-5
2,4,6-Trinitrotoluene 2,4,6-TNT 118-96-7 0.0300 0.0300 0.0005 0.0005
2,6-Dinitrotoluene 2,4-DNT 606-20-2 0.6800
a 0.0020 0.0010
Allyl chloride Allyl chloride 107-05-1 0.0010 0.0003
Aluminum Aluminum 7429-90-5 0.0010
Antimony Antimony 7440-36-0 0.0004 0.0004
Barium Barium 7440-39-3 0.0005 0.0001
Benzene Benzene 71-43-2 0.0290 0.0270 0.0086
Benzo(a)anthracene Benzo(a)anthracene 56-55-3 7.3000 0.7300
Benzo(a)pyrene Benzo(a)pyrene 50-32-8 7.3000 3.1000
bis(2-ethylhexyl)phthalate bis(2-ethylhexyl)phthalate 117-81-7 0.0140 0.0140 0.0200 0.0200
Bromomethane Methyl Bromide 74-83-9 0.0014
Butylbenzylphthalate Butylbenzylphthalate 85-68-7 0.0019 0.2000 0.2000
Cadmium Cadmium 7440-43-9 6.3000 0.0010 0.0001
Calcium Calcium 7440-70-2
Carbon tetrachloride Carbon tetrachloride 56-23-5 0.0530 0.0530 0.0500
Chloroethane Ethyl chloride 75-00-3 0.0029 10.0000 2.9000
Chloromethane Methyl chloride 74-87-3 0.0260
Chromium Chromium 7440-47-3 0.0050 1.5000
Chrysene Chrysene 218-01-9 0.0073
Copper Copper 7440-50-8 0.0400
Dichlorodifluoromethane Freon12 75-71-8 0.0500
Diethylphthalate Diethylphthalate 84-66-2 0.8000 0.8000
Dimethylphthalate Dimethylphthalate 131-11-3 10.0000 10.0000
Di-n-butylphthalate Di-n-butylphthalate 84-74-2 0.1000 0.1000
Di-n-octylphthalate Di-n-octylphthalate 117-84-0 0.0400
Ethylbenzene Ethylbenzene 100-41-4 1.0000 0.2900
p-Ethyltoluene p-Ethyltoluene 100-41-4
Fluoranthene Fluoranthene 206-44-0 0.0400 0.0400
Fluorene Fluorene 86-73-7 0.0400 0.0400
Hexachlorobenzene Hexachlorobenzene 118-74-1 1.6000 0.0008 0.0008
Hexahydro-1,3,5-trinitro-1,3,5-triazine Hexahydro-1,3,5…(RDX)121-82-4 0.1100 0.1100 0.0030 0.0030
Lead Lead 7439-92-1
m,p-Xylenes m,p-Xylene 1330-20-7 0.0300
Mercury Mercury 7439-97-6 0.0003 0.0001
Methane Methane
Methylene chloride Dichloromethane 75-09-2 0.0017 0.3000
Naphthalene Naphthalene 91-20-3 0.0009
Nickel Nickel 7440-02-0 0.0200 0.0200
Nitroglycerin Nitroglycerine 55-63-0 0.0140
Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine Octahydro-1,3,5,7…(HMX)2691-41-0 0.0500 0.0500
o-Xylene o-Xylene 95-47-6 0.0300
Pentaerythritol tetranitrate Pentaerythritol tetranitrate (PETN) 78-11-5 0.1100 0.1100b 0.0030 0.003b
Phenanthrene Phenanthrene 85-01-8
Phenol Phenol 108-95-2 0.6000 0.3000
Potassium Potassium 7440-09-7
Pyrene Pyrene 129-00-0 0.0300 0.0300
Sodium Sodium 7440-23-5
Styrene Styrene 100-42-5 0.2860
Titanium Titanium 7440-32-6 0.0086
Toluene Toluene 108-88-3 0.1140
Trichlorofluoromethane Freon11 75-69-4 0.2000
Vinyl Chloride Vinyl chloride 75-01-4 0.3000 0.0150 0.0280
Zinc Zinc 7440-66-6 0.3000 0.3000
SFi = Carcinogenic Inhalation Slope Factor, RfDi = Non-carcinogenic Inhalation Reference dose.Bolded values denote route-to-route extrapolation of oral toxicity to inhalation pathway, italicized values denote a change from the 1997 Permit values, the boxed values
are new.
Source: EPA Integreted Risk Information System (IRIS), May 2005.
a Toxcity values do not exist in the latest EPA peer-reviewed sources.
b Toxcity values for PETN derived from RDX.
JMS/E082005001SLC PAGE 1 OF 1
TABLE 11
New Toxicity Factors for Air Emissions
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Chemical Permit_Chemical CASNo
1997_SFi(Kg-day/mg)2005_SFi(Kg-day/mg)1997_RfDi(mg/Kg-day)2005_RfDi(mg/Kg-day)
1,1,1-Trichloroethane Methyl chloroform 71-55-6 0.6300
1,1,2,2-Tetrachloroethane 1,1,2,2-Tetrachoroethane 79-34-5 0.2000 0.2000 0.0600
1,1,2-Trichloro-1,2,2-trifluoroethane Freon113 76-13-1 8.6000
1,1-Dichloroethene Vinylidene chloride 75-35-4 0.0600
1,2,4-Trimethylbenzene 1,2,4-Trimethylbenzene 95-63-6 0.0017
1,3,5-Trimethylbenzene 1,3,5-Trimethylbenzene 108-67-8 0.0017
1,3-Butadiene 1,3-Butadiene 106-99-0 1.8000 0.1000 0.0006
2-Nitrodiphenylamine 2-Nitrodiphenylamine 119-75-5
Aluminum Aluminum 7429-90-5 0.0010
Benzene Benzene 71-43-2 0.0290 0.0270 0.0086
Bromomethane Methyl Bromide 74-83-9 0.0014
Butylbenzylphthalate Butylbenzylphthalate 85-68-7 0.0019 0.2000 0.2000
Cadmium Cadmium 7440-43-9 6.3000 0.0010 0.0001
Calcium Calcium 7440-70-2
Carbon tetrachloride Carbon tetrachloride 56-23-5 0.0530 0.0530 0.0500
Chloroethane Ethyl chloride 75-00-3 0.0029 10.0000 2.9000
Chloromethane Methyl chloride 74-87-3 0.0260
Chrysene Chrysene 218-01-9 0.0073
Copper Copper 7440-50-8 0.0400
Dichlorodifluoromethane Freon12 75-71-8 0.0500
Di-n-octylphthalate Di-n-octylphthalate 117-84-0 0.0400
p-Ethyltoluene p-Ethyltoluene 100-41-4
Hexachlorobenzene Hexachlorobenzene 118-74-1 1.6000 0.0008 0.0008
Lead Lead 7439-92-1
m,p-Xylenes m,p-Xylene 1330-20-7 0.0300
Methane Methane
Methylene chloride Dichloromethane 75-09-2 0.0017 0.3000
Naphthalene Naphthalene 91-20-3 0.0009
Nitroglycerin Nitroglycerine 55-63-0 0.0140
o-Xylene o-Xylene 95-47-6 0.0300
Phenanthrene Phenanthrene 85-01-8
Potassium Potassium 7440-09-7
Sodium Sodium 7440-23-5
Styrene Styrene 100-42-5 0.2860
Titanium Titanium 7440-32-6 0.0086
Toluene Toluene 108-88-3 0.1140
Trichlorofluoromethane Freon11 75-69-4 0.2000
Vinyl Chloride Vinyl chloride 75-01-4 0.3000 0.0150 0.0280
SFi = Carcinogenic Inhalation Slope Factor, RfDi = Non-carcinogenic Inhalation Reference dose.Bolded values denote new toxicity values since the permit.
Source: EPA Integreted Risk Information System (IRIS), May 2005.
JMS/E082005001SLC PAGE 1 OF 1
TABLE 12
Changes in Toxicity Factors for Air Emissions
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Chemical Permit_Chemical CASNo 1997_SFi(Kg-day/mg)2005_SFi(Kg-day/mg)1997_RfDi(mg/Kg-day)2005_RfDi(mg/Kg-day)
1,3-Butadiene 1,3-Butadiene 106-99-0 1.8000 0.1000 0.0006
2,6-Dinitrotoluene 2,4-DNT 606-20-2 0.6800
*0.0020 0.0010
Allyl chloride Allyl chloride 107-05-1 0.0010 0.0003
Barium Barium 7440-39-3 0.0005 0.0001
Benzene Benzene 71-43-2 0.0290 0.0270 0.0086
Benzo(a)pyrene Benzo(a)pyrene 50-32-8 7.3000 3.1000
Cadmium Cadmium 7440-43-9 6.3000 0.0010 0.0001
Chloroethane Ethyl chloride 75-00-3 0.0029 10.0000 2.9000
Chromium Chromium 7440-47-3 0.0050 1.5000
Ethylbenzene Ethylbenzene 100-41-4 1.0000 0.2900
Mercury Mercury 7439-97-6 0.0003 0.0001
Phenol Phenol 108-95-2 0.6000 0.3000
Vinyl Chloride Vinyl chloride 75-01-4 0.3000 0.0150 0.0280
SFi = Carcinogenic Inhalation Slope Factor, RfDi = Non-carcinogenic Inhalation Reference dose.Bolded values denote a change in the toxicity values since the permit.
Source: EPA Integreted Risk Information System (IRIS), May 2005.
* Toxcity values do not exist in the latest EPA peer-reviewed sources.
JMS/E082005001SLC PAGE 1 OF 1
TABLE 13
Estimating Risk to EOD Personnel on Bug Knoll (Permit Table 8)
Attachment 10B - Thermal Treatment Unit Human Health Risk
Assessment
Scenario Chemical Permit Chemical Name CASNo
EPC(mg/M3)1997ELCR 2005ELCR 2005ELCR%1997 HI 2005 HI 2005 HI%
Air_EOD 1,1,1-Trichloroethane Methyl chloroform 71-55-6 1.32E-04 4.E-08 0.00%
Air_EOD 1,1,2,2-Tetrachloroethane 1,1,2,2-Tetrachoroethae 79-34-5 1.38E-04 2.E-09 2.E-09 0.03%5.E-07 0.00%
Air_EOD 1,1,2-Trichloro-1,2,2-trifluoroethane Freon113 76-13-1 5.43E-06 1.E-10 0.00%
Air_EOD 1,1-Dichloroethene Vinylidene chloride 75-35-4 3.40E-05 1.E-07 0.00%
Air_EOD 1,2,4-Trimethylbenzene 1,2,4-Trimethylbenzene 95-63-6 3.04E-04 4.E-05 0.03%
Air_EOD 1,3,5-Trimethylbenzene 1,3,5-Trimethylbenzene 108-67-8 3.87E-06 5.E-07 0.00%
Air_EOD 1,3-Butadiene 1,3-Butadiene 106-99-0 2.38E-04 3.E-08 1.E-09 0.02%9.E-05 0.07%
Air_EOD 2,4,6-Trinitrotoluene 2,4,6-TNT 118-96-7 3.89E-05 7.E-11 7.E-11 0.00% 2.E-05 2.E-05 0.01%
Air_EOD 2,6-Dinitrotoluene 2,4-DNT 606-20-2 1.17E-05 5.E-10 1.E-06 2.E-06 0.00%
Air_EOD 2-Nitrodiphenylamine 2-Nitrodiphenylamine 119-75-5 1.82E-06
Air_EOD Allyl chloride Allyl chloride 107-05-1 2.30E-04 5.E-05 2.E-04 0.14%
Air_EOD Aluminum Aluminum 7429-90-5 2.38E-01 0.E+00 5.E-02 41.85%
Air_EOD Antimony Antimony 7440-36-0 1.49E-03 8.E-04 8.E-04 0.65%
Air_EOD Barium Barium 7440-39-3 4.11E-03 2.E-03 6.E-03 5.16%
Air_EOD Benzene Benzene 71-43-2 7.90E-04 1.E-09 1.E-09 0.02%2.E-05 0.02%
Air_EOD Benzo(a)anthracene Benzo(a)anthracene 56-55-3 5.98E-07 3.E-10 3.E-11 0.00%
Air_EOD Benzo(a)pyrene Benzo(a)pyrene 50-32-8 7.76E-06 3.E-09 1.E-09 0.02%
Air_EOD bis(2-ethylhexyl)phthalate bis(2-ethylhexyl)phthalate 117-81-7 6.24E-05 5.E-11 5.E-11 0.00% 7.E-07 7.E-07 0.00%
Air_EOD Bromomethane Methyl Bromide 74-83-9 6.54E-05 1.E-05 0.01%
Air_EOD Butylbenzylphthalate Butylbenzylphthalate 85-68-7 4.26E-06 5.E-13 0.00% 5.E-09 5.E-09 0.00%
Air_EOD Cadmium Cadmium 7440-43-9 1.52E-02 6.E-06 6.E-06 91.26% 3.E-03 6.E-02 46.89%
Air_EOD Calcium Calcium 7440-70-2 2.58E-02
Air_EOD Carbon tetrachloride Carbon tetrachloride 56-23-5 8.30E-06 3.E-11 3.E-11 0.00%4.E-08 0.00%
Air_EOD Chloroethane Ethyl chloride 75-00-3 2.46E-05 4.E-12 0.00% 5.E-10 2.E-09 0.00%
Air_EOD Chloromethane Methyl chloride 74-87-3 3.44E-05 3.E-07 0.00%
Air_EOD Chromium Chromium 7440-47-3 1.06E-03 4.E-05 1.E-07 0.00%
Air_EOD Chrysene Chrysene 218-01-9 5.73E-07 3.E-13 0.00%
Air_EOD Copper Copper 7440-50-8 4.88E-02 3.E-04 0.21%
Air_EOD Dichlorodifluoromethane Freon12 75-71-8 1.24E-05 5.E-08 0.00%
Air_EOD Diethylphthalate Diethylphthalate 84-66-2 1.03E-02 3.E-06 3.E-06 0.00%
Air_EOD Dimethylphthalate Dimethylphthalate 131-11-3 1.29E-07 3.E-12 3.E-12 0.00%
Air_EOD Di-n-butylphthalate Di-n-butylphthalate 84-74-2 2.73E-04 6.E-07 6.E-07 0.00%
Air_EOD Di-n-octylphthalate Di-n-octylphthalate 117-84-0 1.48E-05 8.E-08 0.00%
Air_EOD Ethylbenzene Ethylbenzene 100-41-4 2.52E-05 5.E-09 2.E-08 0.00%
Air_EOD Fluoranthene Fluoranthene 206-44-0 2.05E-06 1.E-08 1.E-08 0.00%
Air_EOD Fluorene Fluorene 86-73-7 2.58E-07 1.E-09 1.E-09 0.00%
Air_EOD Hexachlorobenzene Hexachlorobenzene 118-74-1 2.13E-05 2.E-09 2.E-09 0.03% 6.E-06 6.E-06 0.00%
Air_EOD Hexahydro-1,3,5-trinitro-1,3,5-triazine Hexahydro-1,3,5…(RDX)121-82-4 7.63E-02 5.E-07 5.E-07 8.00% 5.E-03 5.E-03 4.47%
Air_EOD Lead Lead 7439-92-1 2.13E-02
Air_EOD m,p-Xylenes m,p-Xylene 1330-20-7 1.90E-05 1.E-07 0.00%
Air_EOD Mercury Mercury 7439-97-6 1.94E-06 1.E-06 5.E-06 0.00%
JMS/E082005001SLC PAGE 1 OF 2
TABLE 13
Estimating Risk to EOD Personnel on Bug Knoll (Permit Table 8)
Attachment 10B - Thermal Treatment Unit Human Health Risk
AssessmentScenario Chemical Permit Chemical Name CASNo
EPC(mg/M3)1997ELCR 2005ELCR 2005ELCR%1997 HI 2005 HI 2005 HI%
Air_EOD Methane Methane 3.17E-03
Air_EOD Methylene chloride Dichloromethane 75-09-2 3.39E-03 3.E-10 0.01%2.E-06 0.00%
Air_EOD Naphthalene Naphthalene 91-20-3 8.98E-06 2.E-06 0.00%
Air_EOD Nickel Nickel 7440-02-0 6.82E-03 7.E-05 7.E-05 0.06%
Air_EOD Nitroglycerin Nitroglycerine 55-63-0 1.71E-05 1.E-11 0.00%
Air_EOD Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine Octahydro-1,3,5,7…(HMX)2691-41-0 5.81E-03 2.E-05 2.E-05 0.02%
Air_EOD o-Xylene o-Xylene 95-47-6 9.18E-06 6.E-08 0.00%
Air_EOD Pentaerythritoltetranitrate Pentaerythritol tetranitrate (PETN) 78-11-5 5.81E-03 4.E-08 4.E-08 0.61% 4.E-04 4.E-04 0.34%
Air_EOD p-Ethyltoluene p-Ethyltoluene 622-96-8 9.99E-06
Air_EOD Phenanthrene Phenanthrene 85-01-8 1.59E-06
Air_EOD Phenol Phenol 108-95-2 1.08E-05 4.E-09 8.E-09 0.00%
Air_EOD Potassium Potassium 7440-09-7 2.89E-01
Air_EOD Pyrene Pyrene 129-00-0 8.17E-06 6.E-08 6.E-08 0.00%
Air_EOD Sodium Sodium 7440-23-5 1.26E-02
Air_EOD Styrene Styrene 100-42-5 1.98E-04 1.E-07 0.00%
Air_EOD Titanium Titanium 7440-32-6 6.17E-04 2.E-05 0.01%
Air_EOD Toluene Toluene 108-88-3 1.99E-04 4.E-07 0.00%
Air_EOD Trichlorofluoromethane Freon11 75-69-4 1.95E-05 2.E-08 0.00%
Air_EOD Vinyl Chloride Vinyl chloride 75-01-4 1.67E-05 4.E-09 2.E-11 0.00%1.E-07 0.00%
Air_EOD Zinc Zinc 7440-66-6 4.43E-02 3.E-05 3.E-05 0.03%Total 6.E-06 6.E-06 100%1.E-02 1.E-01 100%
JMS/E082005001SLC PAGE 2 OF 2
TABLE 14
Estimating Risk to Boater on the Great Salt Lake (Permit Table 9)
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Scenario Chemical Permit Chemical Name CASNo
EPC(mg/M3)1997ELCR 2005ELCR 2005ELCR%1997 HI 2005 HI 2005 HI%
Air_Rec 1,1,1-Trichloroethane Methyl chloroform 71-55-6 1.74E-06 1.E-08 0.00%
Air_Rec 1,1,2,2-Tetrachloroethane 1,1,2,2-Tetrachoroethae 79-34-5 1.82E-06 4.E-10 0.01%1.E-07 0.00%
Air_Rec 1,1,2-Trichloro-1,2,2-trifluoroethane Freon113 76-13-1 7.13E-08 3.E-11 0.00%
Air_Rec 1,1-Dichloroethene Vinylidene chloride 75-35-4 4.47E-07 3.E-08 0.00%
Air_Rec 1,2,4-Trimethylbenzene 1,2,4-Trimethylbenzene 95-63-6 3.99E-06 9.E-06 0.02%
Air_Rec 1,3,5-Trimethylbenzene 1,3,5-Trimethylbenzene 108-67-8 5.09E-08 1.E-07 0.00%
Air_Rec 1,3-Butadiene 1,3-Butadiene 106-99-0 3.12E-06 6.E-09 3.E-10 0.01% 0.E+00 2.E-05 0.04%
Air_Rec 2,4,6-Trinitrotoluene 2,4,6-TNT 118-96-7 5.11E-07 2.E-11 2.E-11 0.00% 4.E-06 4.E-06 0.01%
Air_Rec 2,6-Dinitrotoluene 2,4-DNT 606-20-2 1.54E-07 1.E-10 3.E-07 6.E-07 0.00%
Air_Rec 2-Nitrodiphenylamine 2-Nitrodiphenylamine 119-75-5 2.39E-08
Air_Rec Allyl chloride Allyl chloride 107-05-1 3.02E-06 1.E-05 4.E-05 0.07%
Air_Rec Aluminum Aluminum 7429-90-5 3.12E-03 1.E-02 20.98%
Air_Rec Antimony Antimony 7440-36-0 1.96E-05 2.E-04 2.E-04 0.33%
Air_Rec Barium Barium 7440-39-3 5.40E-05 4.E-04 2.E-03 2.59%
Air_Rec Benzene Benzene 71-43-2 1.04E-05 3.E-10 3.E-10 0.01% 1.E-11 5.E-06 0.01%
Air_Rec Benzo(a)anthracene Benzo(a)anthracene 56-55-3 7.85E-09 6.E-11 6.E-12 0.00%
Air_Rec Benzo(a)pyrene Benzo(a)pyrene 50-32-8 1.02E-07 8.E-10 4.E-10 0.01%
Air_Rec bis(2-ethylhexyl)phthalate bis(2-ethylhexyl)phthalate 117-81-7 8.20E-07 1.E-11 1.E-11 0.00% 2.E-07 2.E-07 0.00%
Air_Rec Bromomethane Methyl Bromide 74-83-9 8.59E-07 2.E-06 0.00%
Air_Rec Butylbenzylphthalate Butylbenzylphthalate 85-68-7 5.59E-08 1.E-13 0.00% 1.E-09 1.E-09 0.00%
Air_Rec Cadmium Cadmium 7440-43-9 1.99E-04 1.E-06 1.E-06 45.77% 8.E-04 1.E-02 23.48%
Air_Rec Calcium Calcium 7440-70-2 3.39E-04
Air_Rec Carbon tetrachloride Carbon tetrachloride 56-23-5 1.09E-07 6.E-12 6.E-12 0.00%9.E-09 0.00%
Air_Rec Chloroethane Ethyl chloride 75-00-3 3.23E-07 1.E-12 0.00% 1.E-10 4.E-10 0.00%
Air_Rec Chloromethane Methyl chloride 74-87-3 4.51E-07 7.E-08 0.00%
Air_Rec Chromium Chromium 7440-47-3 1.39E-05 1.E-05 4.E-08 0.00%
Air_Rec Chrysene Chrysene 218-01-9 7.52E-09 6.E-14 0.00%
Air_Rec Copper Copper 7440-50-8 6.41E-04 6.E-05 0.11%
Air_Rec Dichlorodifluoromethane Freon12 75-71-8 1.63E-07 1.E-08 0.00%
Air_Rec Diethylphthalate Diethylphthalate 84-66-2 1.35E-04 1.E-09 7.E-07 0.00%
Air_Rec Dimethylphthalate Dimethylphthalate 131-11-3 1.69E-09 5.E-08 7.E-13 0.00%
Air_Rec Di-n-butylphthalate Di-n-butylphthalate 84-74-2 3.58E-06 3.E-10 1.E-07 0.00%
Air_Rec Di-n-octylphthalate Di-n-octylphthalate 117-84-0 1.95E-07 2.E-08 0.00%
Air_Rec Ethylbenzene Ethylbenzene 100-41-4 3.31E-07 1.E-09 4.E-09 0.00%
Air_Rec Fluoranthene Fluoranthene 206-44-0 2.69E-08 2.E-10 3.E-09 0.00%
Air_Rec Fluorene Fluorene 86-73-7 3.39E-09 3.E-09 3.E-10 0.00%
Air_Rec Hexachlorobenzene Hexachlorobenzene 118-74-1 2.80E-07 2.E-10 5.E-10 0.02% 5.E-07 1.E-06 0.00%
Air_Rec Hexahydro-1,3,5-trinitro-1,3,5-triazine Hexahydro-1,3,5…(RDX)121-82-4 1.00E-03 4.E-13 1.E-07 4.02% 4.E-09 1.E-03 2.24%
Air_Rec Lead Lead 7439-92-1 2.80E-04
Air_Rec m,p-Xylenes m,p-Xylene 1330-20-7 2.49E-07 3.E-08 0.00%
JMS/E082005001SLC PAGE 1 OF 2
TABLE 14
Estimating Risk to Boater on the Great Salt Lake (Permit Table 9)
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Scenario Chemical Permit Chemical Name CASNo
EPC(mg/M3)1997ELCR 2005ELCR 2005ELCR%1997 HI 2005 HI 2005 HI%
Air_Rec Mercury Mercury 7439-97-6 2.55E-08 3.E-07 1.E-06 0.00%
Air_Rec Methane Methane 4.17E-05 1.E-06 2.E-06 49.85%3.E-02 49.88%
Air_Rec Methylene chloride Dichloromethane 75-09-2 4.46E-05 8.E-11 0.00%6.E-07 0.00%
Air_Rec Naphthalene Naphthalene 91-20-3 1.18E-07 5.E-07 0.00%
Air_Rec Nickel Nickel 7440-02-0 8.95E-05 2.E-05 2.E-05 0.03%
Air_Rec Nitroglycerin Nitroglycerine 55-63-0 2.24E-07 4.E-12 0.00%
Air_Rec Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine Octahydro-1,3,5,7…(HMX)2691-41-0 7.63E-05 2.E-08 6.E-06 0.01%
Air_Rec o-Xylene o-Xylene 95-47-6 1.21E-07 2.E-08 0.00%
Air_Rec Pentaerythritoltetranitrate Pentaerythritol tetranitrate (PETN) 78-11-5 7.63E-05 9.E-09 9.E-09 0.31% 1.E-04 1.E-04 0.17%
Air_Rec p-Ethyltoluene p-Ethyltoluene 622-96-8 1.31E-07
Air_Rec Phenanthrene Phenanthrene 85-01-8 2.08E-08
Air_Rec Phenol Phenol 108-95-2 1.42E-07 1.E-10 2.E-09 0.00%
Air_Rec Potassium Potassium 7440-09-7 3.79E-03
Air_Rec Pyrene Pyrene 129-00-0 1.07E-07 2.E-08 1.E-08 0.00%
Air_Rec Sodium Sodium 7440-23-5 1.65E-04
Air_Rec Styrene Styrene 100-42-5 2.61E-06 4.E-08 0.00%
Air_Rec Titanium Titanium 7440-32-6 8.10E-06 4.E-06 0.01%
Air_Rec Toluene Toluene 108-88-3 2.62E-06 9.E-08 0.00%
Air_Rec Trichlorofluoromethane Freon11 75-69-4 2.56E-07 5.E-09 0.00%
Air_Rec Vinyl Chloride Vinyl chloride 75-01-4 2.20E-07 7.E-11 4.E-12 0.00%3.E-08 0.00%
Air_Rec Zinc Zinc 7440-66-6 5.82E-04 8.E-06 0.01%Total 3.E-06 3.E-06 100%2.E-03 6.E-02 100%
JMS/E082005001SLC PAGE 2 OF 2
TABLE 15
Estimating Risk to Oasis Resident (Permit Table 10)
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Scenario Chemical Permit Chemical Name CASNo
EPC(mg/M3)1997ELCR 2005ELCR 2005ELCR%1997 HI 2005 HI
2005 HI%
Air_Res 1,1,1-Trichloroethane Methyl chloroform 71-55-6 5.52E-07 1.E-08 0.00%
Air_Res 1,1,2,2-Tetrachloroethane 1,1,2,2-Tetrachoroethae 79-34-5 5.78E-07 7.E-10 7.E-10 0.03%1.E-07 0.00%
Air_Res 1,1,2-Trichloro-1,2,2-trifluoroethane Freon113 76-13-1 2.27E-08 4.E-11 0.00%
Air_Res 1,1-Dichloroethene Vinylidene chloride 75-35-4 1.42E-07 3.E-08 0.00%
Air_Res 1,2,4-Trimethylbenzene 1,2,4-Trimethylbenzene 95-63-6 1.27E-06 1.E-05 0.03%
Air_Res 1,3,5-Trimethylbenzene 1,3,5-Trimethylbenzene 108-67-8 1.62E-08 1.E-07 0.00%
Air_Res 1,3-Butadiene 1,3-Butadiene 106-99-0 9.92E-07 1.E-08 6.E-10 0.02%2.E-05 0.07%
Air_Res 2,4,6-Trinitrotoluene 2,4,6-TNT 118-96-7 1.63E-07 3.E-11 3.E-11 0.00% 4.E-06 4.E-06 0.01%
Air_Res 2,6-Dinitrotoluene 2,4-DNT 606-20-2 4.90E-08 2.E-10 3.E-07 7.E-07 0.00%
Air_Res 2-Nitrodiphenylamine 2-Nitrodiphenylamine 119-75-5 7.61E-09
Air_Res Allyl chloride Allyl chloride 107-05-1 9.61E-07 1.E-05 5.E-05 0.14%
Air_Res Aluminum Aluminum 7429-90-5 9.92E-04 1.E-02 41.82%
Air_Res Antimony Antimony 7440-36-0 6.23E-06 2.E-04 2.E-04 0.66%
Air_Res Barium Barium 7440-39-3 1.72E-05 5.E-04 2.E-03 5.18%
Air_Res Benzene Benzene 71-43-2 3.30E-06 6.E-10 5.E-10 0.02%5.E-06 0.02%
Air_Res Benzo(a)anthracene Benzo(a)anthracene 56-55-3 2.50E-09 1.E-10 1.E-11 0.00%
Air_Res Benzo(a)pyrene Benzo(a)pyrene 50-32-8 3.24E-08 1.E-09 6.E-10 0.02%
Air_Res bis(2-ethylhexyl)phthalate bis(2-ethylhexyl)phthalate 117-81-7 5.22E-11 9.E-14 4.E-15 0.00% 1.E-14 4.E-11 0.00%
Air_Res Bromomethane Methyl Bromide 74-83-9 2.73E-07 3.E-06 0.01%
Air_Res Butylbenzylphthalate Butylbenzylphthalate 85-68-7 1.78E-08 2.E-13 0.00% 1.E-09 1.E-09 0.00%
Air_Res Cadmium Cadmium 7440-43-9 6.34E-05 2.E-06 2.E-06 91.26% 9.E-04 2.E-02 46.89%
Air_Res Calcium Calcium 7440-70-2 1.08E-04
Air_Res Carbon tetrachloride Carbon tetrachloride 56-23-5 3.47E-08 1.E-11 1.E-11 0.00%9.E-09 0.00%
Air_Res Chloroethane Ethyl chloride 75-00-3 1.03E-07 2.E-12 0.00% 1.E-10 5.E-10 0.00%
Air_Res Chloromethane Methyl chloride 74-87-3 1.43E-07 7.E-08 0.00%
Air_Res Chromium Chromium 7440-47-3 4.42E-06 1.E-05 4.E-08 0.00%
Air_Res Chrysene Chrysene 218-01-9 2.39E-09 1.E-13 0.00%
Air_Res Copper Copper 7440-50-8 2.04E-04 7.E-05 0.22%
Air_Res Dichlorodifluoromethane Freon12 75-71-8 5.19E-08 1.E-08 0.00%
Air_Res Diethylphthalate Diethylphthalate 84-66-2 4.28E-05 7.E-07 7.E-07 0.00%
Air_Res Dimethylphthalate Dimethylphthalate 131-11-3 5.38E-10 7.E-13 0.00%
Air_Res Di-n-butylphthalate Di-n-butylphthalate 84-74-2 1.14E-06 2.E-07 2.E-07 0.00%
Air_Res Di-n-octylphthalate Di-n-octylphthalate 117-84-0 6.20E-08 2.E-08 0.00%
Air_Res Ethylbenzene Ethylbenzene 100-41-4 1.05E-07 2.E-09 5.E-09 0.00%
Air_Res Fluoranthene Fluoranthene 206-44-0 8.57E-09 3.E-09 3.E-09 0.00%
Air_Res Fluorene Fluorene 86-73-7 1.08E-09 4.E-10 4.E-10 0.00%
Air_Res Hexachlorobenzene Hexachlorobenzene 118-74-1 8.90E-08 8.E-10 8.E-10 0.03% 2.E-06 2.E-06 0.00%
Air_Res Hexahydro-1,3,5-trinitro-1,3,5-triazine Hexahydro-1,3,5…(RDX)121-82-4 3.18E-04 2.E-07 2.E-07 7.99% 1.E-03 1.E-03 4.47%
Air_Res Lead Lead 7439-92-1 8.90E-05
Air_Res m,p-Xylenes m,p-Xylene 1330-20-7 7.92E-08 4.E-08 0.00%
Air_Res Mercury Mercury 7439-97-6 8.12E-09 4.E-07 1.E-06 0.00%
Air_Res Methane Methane 1.32E-05
Air_Res Methylene chloride Dichloromethane 75-09-2 1.42E-05 1.E-10 0.01%6.E-07 0.00%
Air_Res Naphthalene Naphthalene 91-20-3 3.75E-08 6.E-07 0.00%
Air_Res Nickel Nickel 7440-02-0 2.85E-05 2.E-05 2.E-05 0.06%
Air_Res Nitroglycerin Nitroglycerine 55-63-0 7.13E-08 6.E-12 0.00%
Air_Res
Octahydro-1,3,5,7-tetranitro-1,3,5,7-
tetrazocine Octahydro-1,3,5,7…(HMX) 2691-41-0 2.43E-05 7.E-06 7.E-06 0.02%
Air_Res o-Xylene o-Xylene 95-47-6 3.83E-08 2.E-08 0.00%
Air_Res Pentaerythritoltetranitrate Pentaerythritol tetranitrate (PETN)78-11-5 2.43E-05 2.E-08 2.E-08 0.61% 1.E-04 1.E-04 0.34%
Air_Res p-Ethyltoluene p-Ethyltoluene 622-96-8 4.17E-08
Air_Res Phenanthrene Phenanthrene 85-01-8 6.62E-09
Air_Res Phenol Phenol 108-95-2 4.51E-08 1.E-09 2.E-09 0.00%
Air_Res Potassium Potassium 7440-09-7 1.21E-03
Air_Res Pyrene Pyrene 129-00-0 3.41E-08 2.E-08 2.E-08 0.00%
Air_Res Sodium Sodium 7440-23-5 5.24E-05
Air_Res Styrene Styrene 100-42-5 8.28E-07 4.E-08 0.00%
Air_Res Titanium Titanium 7440-32-6 2.58E-06 4.E-06 0.01%
Air_Res Toluene Toluene 108-88-3 8.34E-07 1.E-07 0.00%
Air_Res Trichlorofluoromethane Freon11 75-69-4 8.14E-08 5.E-09 0.00%
Air_Res Vinyl Chloride Vinyl chloride 75-01-4 6.99E-08 1.E-10 6.E-12 0.00%3.E-08 0.00%
Air_Res Zinc Zinc 7440-66-6 1.85E-04 8.E-06 8.E-06 0.03%Total 2.E-06 3.E-06 100%3.E-03 3.E-02 100%
JMS/E082005001SLC PAGE 1 OF 1
Figure
\\Slcdb\gis\PROJECTS\HAFB\UTTR\TTU\Map_Documents\Monitoring_Wells\FIG1_TTU_SITE_MAP.mxd; 08-25-05; mnl
HILL AIR FORCE BASE, UTAH
TTU SITE MAPFIGURE 1
2005 HUMAN HEALTH RISK ASSESSMENT
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SS-01SSS-02SSS-03SSS-04S (D)SS-05S
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SS-11
TTU-2
TTU-1
Landfill 5
NR-537
NR-536
NR-535
NR-534
NR-533
NR-532NR-531
NR-530
NR-529
NR-528
NR-527
NR-526
NR-239
NR-238 NR-237
NR-236
NR-235 NR-234
NR-232
NR-231
NR-230
NR-229
NR-227
NR-233
NR-228
NR-226
SS-3
SS-4
SS-15
SS-14
SS-12 SS-13SS-10
SS-20
SS-19
SS-18
SS-17
SS-5
SS-6
SS-9
SS-7SS-8
SS-2
SS-16
MW-F
MW-G
MW-HMW-I
MW-J1
0 500 1,000 1,500
Feet
LEGEND
!1989 SAMPLES (Estimated)
!1991 SAMPLES (Estimated)
!2002 SAMPLES (Surveyed)
!2004 SAMPLES (Surveyed)
¡MONITORING WELL
APPENDIX A
Descriptive Statistics for Surface Soil Samples
Appendix A
Descriptive Statistics for Surface Soil Samples
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Analyte CASNo Units
TotalSamples TotalDetects DetectionFrequency MaximumDetect MinimumDetect AverageDetect Mean
a StandardDeviation Variance
1,1,1,2-Tetrachloroethane 630-20-6 mg/Kg 21 4.28E-04 1.35E-04 1.81E-08
1,1,1-Trichloroethane 71-55-6 mg/Kg 21 4.76E-04 8.02E-05 6.43E-09
1,1,2,2-Tetrachloroethane 79-34-5 mg/Kg 21 5.37E-04 9.16E-05 8.39E-09
1,1,2-Trichloroethane 79-00-5 mg/Kg 21 4.65E-04 9.53E-05 9.08E-09
1,1-Dichloroethane 75-34-3 mg/Kg 21 3.72E-04 6.05E-05 3.66E-09
1,1-Dichloroethene 75-35-4 mg/Kg 21 5.69E-04 3.39E-04 1.15E-07
1,2,3-Trichlorobenzene 87-61-6 mg/Kg 22 1 4.5% 0.003 0.003 0.003 5.38E-04 5.11E-04 2.62E-07
1,2,3-Trichloropropane 96-18-4 mg/Kg 21 5.70E-04 1.79E-04 3.20E-08
1,2,4-Trichlorobenzene 120-82-1 mg/Kg 27 1 3.7% 0.003 0.003 0.003 0.904 2.78 7.72
1,2-Dibromo-3-chloropropane 96-12-8 mg/Kg 21 0.002 5.50E-04 3.03E-07
1,2-Dibromoethane 106-93-4 mg/Kg 21 5.00E-04 1.58E-04 2.49E-08
1,2-Dichlorobenzene 95-50-1 mg/Kg 27 1 3.7% 0.001 0.001 0.001 0.904 2.78 7.73
1,2-Dichloroethane 107-06-2 mg/Kg 21 4.50E-04 9.81E-05 9.62E-09
1,2-Dichloropropane 78-87-5 mg/Kg 21 4.04E-04 7.13E-05 5.09E-09
1,3,5-Trinitrobenzene 99-35-4 mg/Kg 22 0.058 0.047 0.002
1,3-Dichlorobenzene 541-73-1 mg/Kg 27 1 3.7% 0.002 0.002 0.002 0.904 2.78 7.72
1,3-Dinitrobenzene 99-65-0 mg/Kg 22 0.050 0.030 8.92E-04
1,4-Dichlorobenzene 106-46-7 mg/Kg 27 1 3.7% 0.003 0.003 0.003 0.904 2.78 7.72
2,4,5-Trichlorophenol 95-95-4 mg/Kg 27 4.43 13.3 176
2,4,6-Trichlorophenol 88-06-2 mg/Kg 27 0.942 2.77 7.65
2,4,6-Trinitrophenyl-methylnitramine 479-45-8 mg/Kg 22 0.136 0.091 0.008
2,4,6-Trinitrotoluene 118-96-7 mg/Kg 32 0.962 0.706 0.498
2,4,6-Trinitrotolunene 118-96-7 mg/Kg 10 0.025 0.002 4.79E-06
2,4-Dichlorophenol 120-83-2 mg/Kg 27 0.946 2.77 7.65
2,4-Dimethylphenol 105-67-9 mg/Kg 27 0.945 2.77 7.65
2,4-Dinitrophenol 51-28-5 mg/Kg 27 4.44 13.3 176
2,4-Dinitrotoluene 121-14-2 mg/Kg 47 1 2.1% 2.00 2.00 2.00 0.931 2.09 4.36
2,6-Dinitrotoluene 606-20-2 mg/Kg 47 1.19 2.09 4.37
2-Amino-4,6-dinitrotoluene 1321-12-6 mg/Kg 30 1.04 0.667 0.445
2-Butanone 78-93-3 mg/Kg 22 4 18.2% 0.016 0.004 0.011 0.004 0.004 1.41E-05
2-Chloroethylvinylether 110-75-8 mg/Kg 12 0.005 0.001 1.12E-06
2-Chloronapthalene 91-58-7 mg/Kg 27 0.942 2.77 7.65
2-Chlorophenol 95-57-8 mg/Kg 27 0.941 2.77 7.66
2-Hexanone 591-78-6 mg/Kg 21 0.003 6.90E-04 4.76E-07
2-Methylnaphthalene 91-57-6 mg/Kg 27 3 11.1% 170 18.0 88.3 9.87 35.4 1,251
2-Methylphenol 95-48-7 mg/Kg 27 0.942 2.77 7.65
2-Nitroaniline 88-74-4 mg/Kg 27 4.44 13.3 176
2-Nitrophenol 88-75-5 mg/Kg 27 0.940 2.77 7.66
2-Nitrotoluene 88-72-2 mg/Kg 22 0.082 0.054 0.003
3,3'-Dichlorobenzidine 91-94-1 mg/Kg 27 1.87 5.53 30.6
3-Nitroaniline 99-09-2 mg/Kg 27 4.57 13.2 175
3-Nitrotoluene 99-08-1 mg/Kg 22 0.096 0.050 0.003
4,6-Dinitro-2-methylphenol 534-52-1 mg/Kg 27 4.43 13.3 176
4-Amino-2,6-Dinitrotoluene 1321-12-6 mg/Kg 10 0.088 0.007 5.49E-05
4-Bromophenylphenylether 101-55-3 mg/Kg 27 0.945 2.77 7.65
4-Chloro-3-methylphenol 59-50-7 mg/Kg 27 0.946 2.77 7.65
4-Chloroaniline 106-47-8 mg/Kg 27 1.09 2.72 7.39
JMS/E082005001SLC PAGE 1 OF 4
Appendix A
Descriptive Statistics for Surface Soil Samples
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Analyte CASNo Units
TotalSamples TotalDetects DetectionFrequency MaximumDetect MinimumDetect AverageDetect Mean
a StandardDeviation Variance
4-Chlorophenylphenylether 7005-72-3 mg/Kg 27 0.943 2.77 7.65
4-Methyl-2-pentanone 108-10-1 mg/Kg 21 0.003 4.92E-04 2.42E-07
4-Methylphenol 106-44-5 mg/Kg 27 0.944 2.77 7.65
4-Nitroaniline 100-01-6 mg/Kg 27 4.43 13.3 176
4-Nitrophenol 100-02-7 mg/Kg 27 4.43 13.3 176
4-Nitrotoluene 99-99-0 mg/Kg 22 0.122 0.065 0.004
Acenaphthene 83-32-9 mg/Kg 10 0.036 0.003 9.05E-06
Acenaphthylene 208-96-8 mg/Kg 27 0.942 2.77 7.65
Acetone 67-64-1 mg/Kg 27 9 33.3% 24.0 0.004 4.13 1.39 5.00 25.0
Aluminum 7429-90-5 mg/Kg 47 47 100.0% 54,000 5,390 13,321 13,321 6,997 4.90E+07
Anthracene 120-12-7 mg/Kg 27 1 3.7% 3.60 3.60 3.60 0.685 2.08 4.35
Antimony 7440-36-0 mg/Kg 27 22 81.5% 167 0.120 10.1 8.39 31.9 1,017
Arsenic 7440-38-2 mg/Kg 47 27 57.4% 41.3 1.90 7.51 6.44 5.40 29.2
Barium 7440-39-3 mg/Kg 47 47 100.0% 640 110 208 208 73.0 5,326
Benz(a)anthracene 56-55-3 mg/Kg 10 0.033 0.003 7.43E-06
Benzene 71-43-2 mg/Kg 22 3 13.6% 0.004 0.001 0.003 7.03E-04 9.05E-04 8.20E-07
Benzo(a)anthracene 56-55-3 mg/Kg 17 1.48 3.41 11.6
Benzo(a)pyrene 50-32-8 mg/Kg 27 0.943 2.77 7.65
Benzo(b)fluoranthene 205-99-2 mg/Kg 27 0.956 2.76 7.63
Benzo(g,h,i)perylene 191-24-2 mg/Kg 27 0.942 2.77 7.65
Benzo(k)fluoranthene 207-08-9 mg/Kg 27 0.952 2.76 7.64
Benzoic acid 65-85-0 mg/Kg 27 4.44 13.3 176
Benzyl alcohol 100-51-6 mg/Kg 27 0.945 2.77 7.65
Beryllium 7440-41-7 mg/Kg 47 23 48.9% 0.720 0.280 0.518 0.473 0.154 0.024
Bis(2-chloroethoxy)methane 111-91-1 mg/Kg 22 0.056 0.016 2.49E-04
Bis(2-chloroethyl)ether 111-44-4 mg/Kg 27 0.944 2.77 7.65
Bis(2-chloroisopropyl)ether 108-60-1 mg/Kg 27 0.943 2.77 7.65
bis(2-ethylhexyl)phthalate 117-81-7 mg/Kg 27 5 18.5% 1.50 0.083 0.661 0.170 0.348 0.121
Bromodichloromethane 75-27-4 mg/Kg 21 4.16E-04 8.92E-05 7.95E-09
Bromoform 75-25-2 mg/Kg 21 3.80E-04 1.63E-04 2.65E-08
Bromomethane 74-83-9 mg/Kg 21 6.83E-04 1.11E-04 1.23E-08
Butylbenzylphthalate 85-68-7 mg/Kg 27 0.948 2.76 7.64
Cadmium 7440-43-9 mg/Kg 47 21 44.7% 32.0 0.270 2.36 1.27 4.61 21.2
Calcium 7440-70-2 mg/Kg 42 42 100.0% 1.56E+06 15,400 188,148 188,148 296,587 8.80E+10
Carbon disulfide 75-15-0 mg/Kg 21 5.15E-04 1.09E-04 1.18E-08
Carbon tetrachloride 56-23-5 mg/Kg 21 4.70E-04 7.42E-05 5.51E-09
Chloride mg/Kg 42 30 71.4% 120,000 0.100 4,082 2,916 18,509 3.43E+08
Chlorobenzene 108-90-7 mg/Kg 21 4.45E-04 8.38E-05 7.02E-09
Chloroethane 75-00-3 mg/Kg 21 5.40E-04 1.84E-04 3.40E-08
Chloroform 67-66-3 mg/Kg 21 4.13E-04 8.98E-05 8.07E-09
Chloromethane 74-87-3 mg/Kg 21 5.46E-04 1.61E-04 2.59E-08
Chromium 7440-47-3 mg/Kg 47 47 100.0% 55.3 6.50 14.5 14.5 7.82 61.2
Chrysene 218-01-9 mg/Kg 27 0.943 2.77 7.65
cis-1,2-Dichloroethene 156-59-2 mg/Kg 21 4.49E-04 1.18E-04 1.40E-08
cis-1,3-Dichloropropene 10061-01-5 mg/Kg 21 4.15E-04 1.11E-04 1.23E-08
Cobalt 7440-48-4 mg/Kg 27 22 81.5% 4.90 1.00 2.90 2.79 1.14 1.29
Copper 7440-50-8 mg/Kg 47 41 87.2% 18,000 6.00 498 438 2,622 6.87E+06
JMS/E082005001SLC PAGE 2 OF 4
Appendix A
Descriptive Statistics for Surface Soil Samples
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Analyte CASNo Units
TotalSamples TotalDetects DetectionFrequency MaximumDetect MinimumDetect AverageDetect Mean
a StandardDeviation Variance
Dibenz(a,h)anthracene 53-70-3 mg/Kg 27 0.947 2.76 7.64
Dibenzofuran 132-64-9 mg/Kg 27 3 11.1% 12.0 0.640 5.95 0.714 2.46 6.07
Dibromochloromethane 124-48-1 mg/Kg 21 4.18E-04 1.39E-04 1.94E-08
Dibromomethane 74-95-3 mg/Kg 21 3.98E-04 1.40E-04 1.96E-08
Dichlorodifluoromethane 75-71-8 mg/Kg 21 4.87E-04 9.62E-05 9.25E-09
Diethylphthalate 84-66-2 mg/Kg 27 0.952 2.76 7.64
Dimethylphthalate 131-11-3 mg/Kg 27 0.943 2.77 7.65
Di-n-butylphthalate 84-74-2 mg/Kg 27 0.949 2.76 7.64
Di-n-octylphthalate 117-84-0 mg/Kg 27 0.937 2.77 7.66
Ethylbenzene 100-41-4 mg/Kg 22 1 4.5% 0.001 0.001 0.001 4.89E-04 2.00E-04 4.00E-08
Fluoranthene 206-44-0 mg/Kg 27 1 3.7% 0.144 0.144 0.144 0.944 2.77 7.65
Fluorene 86-73-7 mg/Kg 27 3 11.1% 33.0 1.70 17.6 2.01 7.09 50.3
Hexachlorobenzene 118-74-1 mg/Kg 27 0.945 2.77 7.65
Hexachlorobutadiene 87-68-3 mg/Kg 26 0.939 2.83 8.00
Hexachlorocyclopentadiene 77-47-4 mg/Kg 27 0.998 2.75 7.56
Hexachloroethane 67-72-1 mg/Kg 27 0.944 2.77 7.65
Hexahydro-1,3,5-trinitro-1,3,5-triazine 121-82-4 mg/Kg 42 0.748 0.726 0.528
Indeno(1,2,3-cd)pyrene 193-39-5 mg/Kg 27 0.948 2.76 7.64
Iron 7439-89-6 mg/Kg 42 42 100.0% 15,000 4,510 10,606 10,606 2,787 7.77E+06
Isophorone 78-59-1 mg/Kg 27 0.945 2.77 7.65
Lead 7439-92-1 mg/Kg 47 40 85.1% 48,000 2.80 1,267 1,089 6,995 4.89E+07
m,p-Xylene 1330-20-7 mg/Kg 10 1 10.0% 0.002 0.002 0.002 6.95E-04 4.66E-04 2.17E-07
m,p-Xylenes 1330-20-7 mg/Kg 12 0.001 1.76E-04 3.11E-08
Magnesium 7439-95-4 mg/Kg 42 42 100.0% 24,300 9,700 16,695 16,695 4,004 1.60E+07
Manganese 7439-96-5 mg/Kg 47 47 100.0% 519 120 321 321 114 12,945
Mercury 7439-97-6 mg/Kg 47 13 27.7% 0.070 0.005 0.017 0.022 0.015 2.16E-04
Methylene chloride 75-09-2 mg/Kg 22 1 4.5% 0.003 0.003 0.003 8.78E-04 6.32E-04 3.99E-07
Molybdenum 7439-98-7 mg/Kg 22 20 90.9% 17.0 0.600 1.89 1.73 3.45 11.9
Naphthalene 91-20-3 mg/Kg 27 6 22.2% 53.0 6.00E-04 13.3 2.97 10.9 120
Nickel 7440-02-0 mg/Kg 47 47 100.0% 41.3 6.80 11.4 11.4 5.86 34.3
Nitrate 14797-55-8 mg/Kg 47 43 91.5% 22.8 0.004 4.64 4.33 5.97 35.6
Nitrobenzene 98-95-3 mg/Kg 47 1.18 2.10 4.40
Nitroglycerin 55-63-0 mg/Kg 41 0.238 0.054 0.003
Nitroguanidine 556-88-7 mg/Kg 42 2 4.8% 0.300 0.100 0.200 0.179 0.210 0.044
n-Nitroso-di-n-propylamine 621-64-7 mg/Kg 27 0.943 2.77 7.65
N-Nitrosodiphenylamine 86-30-6 mg/Kg 27 0.944 2.77 7.65
Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine 2691-41-0 mg/Kg 42 13 31.0% 25.0 0.230 4.36 1.91 4.04 16.4
o-Xylene 95-47-6 mg/Kg 22 3 13.6% 0.003 8.00E-04 0.002 5.91E-04 6.30E-04 3.97E-07
Pentachlorophenol 87-86-5 mg/Kg 27 4.41 13.3 176
Pentaerythritoltetranitrate 78-11-5 mg/Kg 30 0.433 0.097 0.009
Perchlorate 7601-90-3 mg/Kg 22 11 50.0% 4.50 0.016 0.833 0.422 1.09 1.18
pH 20 7.98 0.376 0.142
Phenanthrene 85-01-8 mg/Kg 27 4 14.8% 92.0 0.380 38.1 5.68 19.9 395
Phenol 108-95-2 mg/Kg 27 0.947 2.77 7.65
Phosphorus 7723-14-0 mg/Kg 20 20 100.0% 990 450 656 656 171 29,173
Picric acid 88-89-1 mg/Kg 42 3 7.1% 0.500 0.400 0.433 0.091 0.102 0.010
JMS/E082005001SLC PAGE 3 OF 4
APPENDIX B
Toxicity and Dermal Absorption Factors
Appendix B
Toxicity and Dermal Absorption Factors
Toxicity Factors
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Chemical StdCAS Group
SFo(Kg-day/mg)SFi(Kg-day/mg)RfDo(mg/Kg-day)RfDi(mg/Kg-day)ABS GI Factor
ACETALDEHYDE 75-07-0 V 7.7E-03 2.57E-03 1.00
ACETOCHLOR 34256-82-1 SV 2E-02 2E-02 1.00
ACETONE 67-64-1 V 9.00E-01 9.00E-01 1.00
ACETONITRILE 75-05-8 V 1.7E-02 1.00
ACETOPHENONE 98-86-2 V 1.00E-01 1.00E-01 1.00
ACROLEIN 107-02-8 V 5.00E-04 5.70E-06 1.00
ACRYLAMIDE 79-06-1 SV 4.50E+00 4.50E+00 2.00E-04 2.00E-04 1.00
ACRYLONITRILE 107-13-1 V 5.40E-01 2.40E-01 1.00E-03 5.70E-04 1.00
ALACHLOR 15972-60-8 SV 8.00E-02 8.00E-02 1.00E-02 1.00E-02 1.00
ALAR 1596-84-5 SV 1.50E-01 1.50E-01 1.00
ALDICARB 116-06-3 SV 1.00E-03 1.00E-03 1.00
ALDICARB SULFONE 1646-88-4 SV 1.00E-03 1.00E-03 1.00
ALDRIN 309-00-2 SV 1.70E+01 1.70E+01 3.00E-05 3.00E-05 1.00
ALLYL CHLORIDE 107-05-1 SV 2.86E-04 1.00
ALUMINUM 7429-90-5 M 1.00E+00 1.00E-03 1.00
AMINODINITROTOLUENES NA SV 2.00E-03 2.00E-03 1.00
AMMONIA 7664-41-7 V 2.86E-02 1.00
ANILINE 62-53-3 SV 5.70E-03 5.70E-03 7.00E-03 2.90E-04 1.00
ANTIMONY 7440-36-0 M 4.00E-04 4.00E-04 0.15
ANTIMONY TRIOXIDE 1309-64-4 M 4.00E-04 5.70E-05 1.00
ARSENIC 7440-38-2 M 1.50E+00 1.51E+01 3.00E-04 3.00E-04 0.03 1.00
ARSINE 7784-42-1 V 1.40E-05 1.00
ASSURE 76578-14-8 SV 9.00E-03 9.00E-03 1.00
ATRAZINE 1912-24-9 SV 2.20E-01 2.20E-01 3.50E-02 3.50E-02 1.00
BARIUM 7440-39-3 M 7.00E-02 1.40E-04 0.07
BAYGON 114-26-1 SV 4.00E-03 4.00E-03 1.00
BAYTHROID 68359-37-5 SV 2.50E-02 2.50E-02 1.00
BENTAZON 25057-89-0 SV 3.00E-02 3.00E-02 0.13 1.00
BENZALDEHYDE 100-52-7 SV 1.00E-01 1.00E-01 1.00
BENZENE 71-43-2 V 5.5E-02 2.7E-02 4.00E-03 8.6E-03 1.00
BENZENETHIOL 108-98-5 V 1.00E-05 1.00E-05 1.00
BENZIDINE 92-87-5 SV 2.30E+02 2.30E+02 3.00E-03 3.00E-03 1.00
BENZOIC ACID 65-85-0 SV 4.00E+00 4.00E+00 1.00
BENZYL ALCOHOL 100-51-6 SV 3.00E-01 3.00E-01 1.00
BENZYL CHLORIDE 100-44-7 V 0.17 0.17 2.00E-03 2.00E-03 1.00
BERYLLIUM 7440-41-7 M 8.40E+00 2.00E-03 5.7E-06 0.01
BIPHENYL 92-52-4 V 5.00E-02 5.00E-02 1.00
BIS(2-CHLOROETHYL)ETHER 111-44-4 V 1.10E+00 1.10E+00 1.00
BIS(2-CHLOROISOPROPYL)ETHER 108-60-1 V 7.00E-02 3.50E-02 4.00E-02 4.00E-02 1.00
BIS(CHLOROMETHYL)ETHER 542-88-1 V 2.20E+02 2.20E+02 1.00
BIS(2-ETHYLHEXYL)PHTHALATE 117-81-7 SV 1.40E-02 1.40E-02 2.00E-02 2.00E-02 1.00
BORON 7440-42-8 M 2.00E-01 5.70E-03 1.00
BROMOBENZENE 108-86-1 V 2.00E-02 3.00E-03 1.00
BROMODICHLOROMETHANE 75-27-4 V 6.20E-02 6.20E-02 2.00E-02 2.00E-02 1.00
BROMOETHENE 593-60-2 V 1.10E-01 8.6E-04 1.00
BROMOFORM 75-25-2 SV 7.90E-03 3.90E-03 2.00E-02 2.00E-02 1.00
BROMOMETHANE 74-83-9 V 1.40E-03 1.40E-03 1.00
BROMOPHOS 2104-96-3 SV 5.00E-03 5.00E-03 1.00
1,3-BUTADIENE 106-99-0 V 1.00E-01 5.7E-04 1.00
1-BUTANOL 71-36-3 SV 1.00E-01 1.00E-01 1.00
BUTYLBENZYLPHTHALATE 85-68-7 SV 1.9E-03 1.9E-03 2.00E-01 2.00E-01 1.00
CADMIUM-FOOD 7440-43-9 M 6.30E+00 1.00E-03 5.7E-05 0.001 0.03
CAPROLACTAM 105-60-2 SV 5.00E-01 5.00E-01 1.00
CARBARYL 63-25-2 SV 1.00E-01 1.00E-01 1.00
CARBON DISULFIDE 75-15-0 V 1.00E-01 2.00E-01 1.00
CARBON TETRACHLORIDE 56-23-5 V 1.30E-01 5.30E-02 7.00E-04 5.00E-02 1.00
CARBOSULFAN 55285-14-8 SV 1.00E-02 1.00E-02 1.00
CHLORAL HYDRATE 302-17-0 SV 1.00E-01 1.00E-01 1.00
CHLORANIL 118-75-2 SV 4.00E-01 4.00E-01 1.00
CHLORDANE 57-74-9 SV 3.5E-01 3.5E-01 5.00E-04 2.00E-04 0.04 1.00
CHLORINE 7782-50-5 V 1.00E-01 5.7E-05 1.00
CHLORINE DIOXIDE 10049-04-4 V 3.00E-02 5.70E-05 1.00
CHLOROACETIC ACID 79-11-8 SV 2.00E-03 2.00E-03 1.00
4-CHLOROANILINE 106-47-8 SV 5.4E-02 5.4E-02 4.00E-03 4.00E-03 1.00
CHLOROBENZENE 108-90-7 V 2.00E-02 1.7E-02 1.00
2-CHLORO-1,3-BUTADIENE 126-99-8 V 2.00E-02 2.00E-03 1.00
1-CHLORO-1,1-DIFLUOROETHANE 75-68-3 V 1.40E+01 1.00
CHLORODIFLUOROMETHANE 75-45-6 V 1.40E+01 1.00
CHLOROETHANE 75-00-3 V 2.90E-03 2.90E-03 4.00E-01 2.90E+00 1.00
CHLOROFORM 67-66-3 V 8.10E-02 1.00E-02 1.4E-02 1.00
CHLOROMETHANE 74-87-3 V 2.6E-02 1.00
4-CHLORO-2-METHYLANILINE 95-69-2 SV 5.80E-01 5.80E-01 1.00
BETA-CHLORONAPHTHALENE 91-58-7 V 8.00E-02 8.00E-02 1.00
O-CHLORONITROBENZENE 88-73-3 V 9.7E-03 9.7E-03 1.00E-03 2.00E-05 1.00
P-CHLORONITROBENZENE 100-00-5 V 6.7E-03 6.7E-03 1.00E-03 1.7E-04 1.00
2-CHLOROPHENOL 95-57-8 V 5.00E-03 5.00E-03 1.00
Yellow-highlighted inhalation toxicity factors adapted from the oral
factors. Blue highlights from IRIS.
JMS/E082005001SLC PAGE 1 OF 6
Appendix B
Toxicity and Dermal Absorption Factors
Toxicity Factors
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Chemical StdCAS Group
SFo(Kg-day/mg)SFi(Kg-day/mg)RfDo(mg/Kg-day)RfDi(mg/Kg-day)ABS GI Factor
Yellow-highlighted inhalation toxicity factors adapted from the oral
factors. Blue highlights from IRIS.
2-CHLOROPROPANE 75-29-6 V 2.90E-02 1.00
O-CHLOROTOLUENE 95-49-8 V 2.00E-02 2.00E-02 1.00
CHLORPYRIFOS 2921-88-2 SV 3.00E-03 3.00E-03 1.00
CHLORPYRIFOS-METHYL 5598-13-0 SV 1.00E-02 1.00E-02 1.00
CHROMIUM 7440-47-3 M 1.50E+00 1.50E+00 1.00
CHROMIUM III 16065-83-1 M 1.50E+00 1.50E+00 0.01
CHROMIUM VI 18540-29-9 M 4.10E+01 3.00E-03 3.00E-05 0.03
COBALT 7440-48-4 M 9.8 2.00E-02 5.7E-06 1.00
COKE OVEN EMISSIONS (COAL TAR)8007-45-2 SV 2.2 1.00
COPPER 7440-50-8 M 4.00E-02 4.00E-02 1.00
CUMENE 98-82-8 V 1.00E-01 1.10E-01 1.00
CYANIDE (FREE)57-12-5 M 2.00E-02 2.00E-02 1.00
CALCIUM CYANIDE 592-01-8 M 4E-02 4E-02 1.00
COPPER CYANIDE 544-92-3 M 5.00E-03 5.00E-03 1.00
CYANOGEN 460-19-5 V 4.00E-02 4.00E-02 1.00
HYDROGEN CYANIDE 74-90-8 V 2.00E-02 8.60E-04 1.00
POTASSIUM CYANIDE 151-50-8 M 5.00E-02 5.00E-02 1.00
POTASSIUM SILVER CYANIDE 506-61-6 M 2.00E-01 2.00E-01 1.00
SILVER CYANIDE 506-64-9 M 1.00E-01 1.00E-01 1.00
SODIUM CYANIDE 143-33-9 M 4.00E-02 4.00E-02 1.00
THIOCYANATE NA M 1.00E-04 1.00E-04 1.00
ZINC CYANIDE 557-21-1 M 5.00E-02 5.00E-02 1.00
CYCLOHEXANE 110-82-7 V 1.70E+00 1.00
CYCLOHEXANONE 108-94-1 SV 5.00E+00 5.00E+00 1.00
CYHALOTHRIN/KARATE 68085-85-8 SV 5.00E-03 5.00E-03 1.00
CYPERMETHRIN 52315-07-8 SV 1.00E-02 1.00E-02 1.00
DACTHAL 1861-32-1 SV 1.00E-02 1.00E-02 1.00
DALAPON 75-99-0 SV 3.00E-02 3.00E-02 1.00
DDD 72-54-8 SV 2.40E-01 2.40E-01 2.00E-03 2.00E-03 1.00
DDE 72-55-9 SV 3.40E-01 3.40E-01 1.00
DDT 50-29-3 SV 3.40E-01 3.40E-01 5.00E-04 5.00E-04 0.03 1.00
DIAZINON 333-41-5 SV 9.00E-04 9.00E-04 1.00
DIBENZOFURAN 132-64-9 V 2.00E-03 2.00E-03 1.00
1,4-DIBROMOBENZENE 106-37-6 SV 1.00E-02 1.00E-02 1.00
DIBROMOCHLOROMETHANE 124-48-1 V 8.40E-02 8.40E-02 2.00E-02 2.00E-02 1.00
1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 V 1.40E+00 2.40E-03 5.70E-05 1.00
1,2-DIBROMOETHANE 106-93-4 V 2.00E+00 2.00E+00 9.00E-03 2.6E-03 1.00
DIBUTYLPHTHALATE 84-74-2 SV 1.00E-01 1.00E-01 1.00
DICAMBA 1918-00-9 SV 3.00E-02 3.00E-02 1.00
1,2-DICHLOROBENZENE 95-50-1 V 9.00E-02 4.00E-02 1.00
1,3-DICHLOROBENZENE 541-73-1 V 3.00E-03 3.00E-03 1.00
1,4-DICHLOROBENZENE 106-46-7 V 2.40E-02 2.2E-02 3.00E-02 2.29E-01 1.00
3,3'-DICHLOROBENZIDINE 91-94-1 SV 4.50E-01 4.50E-01 1.00
DICHLORODIFLUOROMETHANE 75-71-8 V 2.00E-01 5.00E-02 1.00
1,1-DICHLOROETHANE 75-34-3 V 2.00E-01 1.40E-01 1.00
1,2-DICHLOROETHANE 107-06-2 V 9.10E-02 9.10E-02 2.00E-02 7.00E-01 1.00
1,1-DICHLOROETHENE 75-35-4 V 5.00E-02 6.00E-02 1.00
CIS-1,2-DICHLOROETHENE 156-59-2 V 1.00E-02 1.00E-02 1.00
TRANS-1,2-DICHLOROETHENE 156-60-5 V 2.00E-02 1.7E-02 1.00
TOTAL 1,2-DICHLOROETHENE 540-59-0 V 9.00E-03 9.00E-03 1.00
2,4-DICHLOROPHENOL 120-83-2 SV 3.00E-03 3.00E-03 1.00
2,4-D 94-75-7 SV 1.00E-02 1.00E-02 0.05 1.00
4-(2,4-DICHLOROPHENOXY)BUTYRIC ACID 94-82-6 SV 8E-03 8E-03 1.00
1,2-DICHLOROPROPANE 78-87-5 V 6.80E-02 6.80E-02 1.14E-03 1.00
1,3-DICHLOROPROPANE 142-28-9 V 2.00E-02 2.00E-02 1.00
2,3-DICHLOROPROPANOL 616-23-9 SV 3.00E-03 3.00E-03 1.00
1,3-DICHLOROPROPENE 542-75-6 V 1.00E-01 1.00E-02 3.00E-02 5.71E-03 1.00
DICHLORVOS 62-73-7 SV 0.29 0.29 5E-04 1.43E-04 1.00
DIELDRIN 60-57-1 SV 1.60E+01 1.60E+01 5.00E-05 5.00E-05 1.00
DIESEL EMISSIONS NA SV 1.40E-03 1.00
DIETHYLPHTHALATE 84-66-2 SV 8.00E-01 8.00E-01 1.00
DIETHYLENE GLYCOL, MONOBUTYL ETHER 112-34-5 SV 1.00E-02 5.70E-03 1.00
DIETHYLENE GLYCOL, MONOETHYL ETHER 111-90-0 SV 6.00E-02 8.6E-04 1.00
DI(2-ETHYLHEXYL)ADIPATE 103-23-1 SV 1.20E-03 1.20E-03 6.00E-01 6.00E-01 1.00
DIETHYLSTILBESTROL 56-53-1 SV 4.70E+03 4.70E+03 1.00
DIFENZOQUAT (AVENGE)43222-48-6 SV 8.00E-02 8.00E-02 1.00
1,1-DIFLUOROETHANE 75-37-6 V 1.10E+01 1.00
DIISOPROPYL METHYLPHOSPHONATE (DIMP)1445-75-6 SV 8.00E-02 8.00E-02 1.00
JMS/E082005001SLC PAGE 2 OF 6
Appendix B
Toxicity and Dermal Absorption Factors
Toxicity Factors
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Chemical StdCAS Group
SFo(Kg-day/mg)SFi(Kg-day/mg)RfDo(mg/Kg-day)RfDi(mg/Kg-day)ABS GI Factor
Yellow-highlighted inhalation toxicity factors adapted from the oral
factors. Blue highlights from IRIS.
3,3'-DIMETHOXYBENZIDINE 119-90-4 SV 1.40E-02 1.40E-02 1.00
N,N-DIMETHYLANILINE 121-69-7 SV 2.00E-03 2.00E-03 1.00
3,3'-DIMETHYLBENZIDINE 119-93-7 SV 2.30E+00 2.30E+00 1.00
2,4-DIMETHYLPHENOL 105-67-9 SV 2.00E-02 2.00E-02 1.00
2,6-DIMETHYLPHENOL 576-26-1 SV 6.00E-04 6.00E-04 1.00
3,4-DIMETHYLPHENOL 95-65-8 SV 1.00E-03 1.00E-03 1.00
DIMETHYLPHTHALATE 131-11-3 SV 1.00E+01 1.00E+01 1.00
1,2-DINITROBENZENE 528-29-0 SV 1.00E-04 1.00E-04 1.00
1,3-DINITROBENZENE 99-65-0 SV 1.00E-04 1.00E-04 1.00
1,4-DINITROBENZENE 100-25-4 SV 1.00E-04 1.00E-04 1.00
4,6-DINITRO-O-CYCLOHEXYL PHENOL 131-89-5 SV 2.00E-03 2.00E-03 1.00
4,6-DINITRO-2-METHYLPHENOL 534-52-1 SV 1.00E-04 1.00E-04 1.00
2,4-DINITROPHENOL 51-28-5 SV 2.00E-03 2.00E-03 1.00
DINITROTOLUENE MIX NA SV 6.80E-01 6.80E-01 1.00
2,4-DINITROTOLUENE 121-14-2 SV 2.00E-03 2.00E-03 1.00
2,6-DINITROTOLUENE 606-20-2 SV 1.00E-03 1.00E-03 1.00
DINOSEB 88-85-7 SV 1.00E-03 1.00E-03 1.00
DIOCTYLPHTHALATE 117-84-0 SV 4.00E-02 4.00E-02 1.00
1,4-DIOXANE 123-91-1 SV 1.10E-02 1.10E-02 1.00
DIPHENYLAMINE 122-39-4 SV 2.50E-02 2.50E-02 1.00
1,2-DIPHENYLHYDRAZINE 122-66-7 SV 8.00E-01 8.00E-01 1.00
DIQUAT 85-00-7 SV 2.20E-03 2.20E-03 1.00
DISULFOTON 298-04-4 SV 4.00E-05 4.00E-05 1.00
1,4-DITHIANE 505-29-3 SV 1.00E-02 1.00E-02 1.00
DIURON 330-54-1 SV 2.00E-03 2.00E-03 1.00
ENDOSULFAN 115-29-7 SV 6.00E-03 6.00E-03 1.00
ENDRIN 72-20-8 SV 3.00E-04 3.00E-04 1.00
EPICHLOROHYDRIN 106-89-8 V 9.90E-03 4.20E-03 2.00E-03 2.86E-04 1.00
ETHION 563-12-2 SV 5.00E-04 5.00E-04 0.1 1.00
ETHYL ACETATE 141-78-6 V 9.00E-01 9.00E-01 1.00
ETHYLBENZENE 100-41-4 V 1.00E-01 2.90E-01 1.00
ETHYLENE DIAMINE 107-15-3 SV 9.00E-02 9.00E-02 0.1 1.00
ETHYLENE GLYCOL 107-21-1 SV 2.00E+00 2.00E+00 0.1 1.00
ETHYLENE GLYCOL, MONOBUTYL ETHER 111-76-2 SV 5.00E-01 3.70E+00 0.1 1.00
ETHYLENE OXIDE 75-21-8 V 1.00E+00 3.50E-01 1.00
ETHYL ETHER 60-29-7 V 2.00E-01 2.00E-01 1.00
FENAMIPHOS 22224-92-6 SV 2.50E-04 2.50E-04 0.1 1.00
FLUOMETURON 2164-17-2 SV 1.30E-02 1.30E-02 0.1 1.00
FLUORINE 7782-41-4 M 6.00E-02 6.00E-02 1.00
FOMESAFEN 72178-02-0 SV 1.90E-01 1.90E-01 0.1 1.00
FONOFOS 944-22-9 SV 2.00E-03 2.00E-03 0.1 1.00
FORMALDEHYDE 50-00-0 SV 4.50E-02 2.00E-01 2.00E-01 0.1 1.00
FURAN 110-00-9 V 1.00E-03 1.00E-03 1.00
FURFURAL 98-01-1 SV 3.00E-03 1.00E-02 0.1 1.00
GLYPHOSATE 1071-83-6 SV 1.00E-01 1.00E-01 0.1 1.00
HEPTACHLOR 76-44-8 SV 4.50E+00 4.50E+00 5.00E-04 5.00E-04 0.1 1.00
HEPTACHLOR EPOXIDE 1024-57-3 SV 9.10E+00 9.10E+00 1.30E-05 1.30E-05 0.1 1.00
HEXABROMOBENZENE 87-82-1 SV 2.00E-03 2.00E-03 0.1 1.00
HEXACHLOROBENZENE 118-74-1 SV 1.60E+00 1.60E+00 8.00E-04 8.00E-04 0.1 1.00
HEXACHLOROBUTADIENE 87-68-3 SV 7.80E-02 7.80E-02 2.00E-04 2.00E-04 0.1 1.00
ALPHA-HCH 319-84-6 SV 6.30E+00 6.30E+00 0.1 1.00
BETA-HCH 319-85-7 SV 1.80E+00 1.80E+00 0.1 1.00
GAMMA-HCH (LINDANE)58-89-9 SV 1.30E+00 1.30E+00 3.00E-04 3.00E-04 0.04 1.00
TECHNICAL HCH 608-73-1 SV 1.80E+00 1.80E+00 0.1 1.00
HEXACHLOROCYCLOPENTADIENE 77-47-4 SV 6.00E-03 5.7E-05 0.1 1.00
HEXACHLORODIBENZODIOXIN MIX 19408-74-3 SV 6.20E+03 4.55E+03 0.1 1.00
HEXACHLOROETHANE 67-72-1 SV 1.40E-02 1.40E-02 1.00E-03 1.00E-03 0.1 1.00
HEXACHLOROPHENE 70-30-4 SV 3.00E-04 3.00E-04 0.1 1.00
1,6-HEXAMETHYLENE DIISOCYANATE 822-06-0 SV 2.90E-06 0.1 1.00
HEXANE 110-54-3 V 1.10E+01 5.71E-02 1.00
HMX 2691-41-0 SV 5.00E-02 5.00E-02 0.1 1.00
HYDRAZINE 302-01-2 V 3.00E+00 1.70E+01 1.00
HYDROGEN CHLORIDE 7647-01-0 V 5.70E-03 1.00
HYDROGEN SULFIDE 7783-06-4 V 3.00E-03 5.7E-04 1.00
HYDROQUINONE 123-31-9 SV 5.6E-02 5.6E-02 4.00E-02 4.00E-02 0.1 1.00
IRON 7439-89-6 M 3.00E-01 3.00E-01 1.00
ISOBUTANOL 78-83-1 V 3.00E-01 3.00E-01 1.00
ISOPHORONE 78-59-1 SV 9.50E-04 9.50E-04 2.00E-01 2.00E-01 0.1 1.00
TETRAETHYLLEAD 78-00-2 V 1.00E-07 1.00E-07 1.00
KEPONE 143-50-0 SV 8.00E+00 8.00E+00 2.00E-04 2.00E-04 0.1 1.00
LITHIUM 7439-93-2 M 2.00E-02 2.00E-02 1.00
MALATHION 121-75-5 SV 2.00E-02 2.00E-02 0.1 1.00
JMS/E082005001SLC PAGE 3 OF 6
Appendix B
Toxicity and Dermal Absorption Factors
Toxicity Factors
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Chemical StdCAS Group
SFo(Kg-day/mg)SFi(Kg-day/mg)RfDo(mg/Kg-day)RfDi(mg/Kg-day)ABS GI Factor
Yellow-highlighted inhalation toxicity factors adapted from the oral
factors. Blue highlights from IRIS.
MALEIC ANHYDRIDE 108-31-6 SV 1.00E-01 1.00E-01 0.1 1.00
MANGANESE-FOOD 7439-96-5 M 1.40E-01 1.43E-05 0.04
MEPHOSFOLAN 950-10-7 SV 9.00E-05 9.00E-05 0.1 1.00
MEPIQUAT CHLORIDE 24307-26-4 SV 3.00E-02 3.00E-02 0.1 1.00
MERCURIC CHLORIDE 7487-94-7 M 3.00E-04 3.00E-04 0.07
MERCURY (elemental)7439-97-6 M 8.60E-05 1.00
METHYLMERCURY 22967-92-6 V 1.00E-04 1.00E-04 1.00
METHANOL 67-56-1 V 5.00E-01 5.00E-01 1.00
METHIDATHION 950-37-8 SV 1.00E-03 1.00E-03 0.1 1.00
METHOXYCHLOR 72-43-5 SV 5.00E-03 5.00E-03 0.1 1.00
METHYL ACETATE 79-20-9 V 1.00E+00 1.00E+00 1.00
METHYL ACRYLATE 96-33-3 V 3.00E-02 3.00E-02 1.00
2-METHYLANILINE 95-53-4 SV 2.40E-01 2.40E-01 0.1 1.00
4-(2-METHYL-4-CHLOROPHENOXY) BUTYRIC ACID 94-81-5 SV 1.00E-02 1.00E-02 0.1 1.00
2-METHYL-4-CHLOROPHENOXYACETIC ACID (MCPA)94-74-6 SV 5.00E-04 5.00E-04 0.1 1.00
2-(2-METHYL-4-CHLOROPHENOXY)PROPIONIC ACID (MCPP) 93-65-2 SV 1.00E-03 1.00E-03 0.1 1.00
METHYLCYCLOHEXANE 108-87-2 V 8.60E-01 1.00
METHYLENE BROMIDE 74-95-3 V 1.00E-02 1.00E-02 1.00
METHYLENE CHLORIDE 75-09-2 V 7.50E-03 1.65E-03 6.00E-02 3.00E-01 1.00
4,4'-METHYLENE BIS(2-CHLOROANILINE)101-14-4 SV 1.30E-01 1.30E-01 7.00E-04 7.00E-04 0.1 1.00
4,4'-METHYLENE BIS(N,N'-DIMETHYL)ANILINE 101-61-1 SV 4.60E-02 4.60E-02 0.1 1.00
4,4'-METHYLENEDIPHENYL ISOCYANATE 101-68-8 SV 1.7E-04 0.1 1.00
METHYL ETHYL KETONE (2-BUTANONE)78-93-3 V 6.00E-01 1.40E+00 1.00
METHYL ISOBUTYL KETONE (4-METHYL-2-PENTANONE)108-10-1 V 8.60E-01 1.00
METHYL METHACRYLATE 80-62-6 V 1.40E+00 2.00E-01 1.00
METHYL PARATHION 298-00-0 SV 2.50E-04 2.50E-04 0.1 1.00
2-METHYLPHENOL 95-48-7 SV 5.00E-02 5.00E-02 0.1 1.00
3-METHYLPHENOL 108-39-4 SV 5.00E-02 5.00E-02 0.1 1.00
4-METHYLPHENOL 106-44-5 SV 5.00E-03 5.00E-03 0.1 1.00
METHYLSTYRENE MIX 25013-15-4 V 6.00E-03 1.00E-02 1.00
ALPHA-METHYLSTYRENE 98-83-9 V 7.00E-02 7.00E-02 1.00
METHYL TERT-BUTYL ETHER 1634-04-4 V 4.00E-03 4.00E-03 8.57E-01 1.00
METOLACHLOR (DUAL)51218-45-2 SV 1.50E-01 1.50E-01 0.1 1.00
MIREX 2385-85-5 SV 2.00E-04 2.00E-04 0.1 1.00
MOLYBDENUM 7439-98-7 M 5E-03 5E-03 1.00
MONOCHLORAMINE 10599-90-3 SV 1E-01 1.00E-01 0.1 1.00
NALED 300-76-5 SV 2E-03 2E-03 0.1 1.00
NICKEL REFINERY DUST NA M 8.4E-01 1.00
NICKEL 7440-02-0 M 2.00E-02 2.00E-02 1.00
NITRATE 14797-55-8 M 1.60E+00 1.60E+00 1.00
NITRITE 14797-65-0 M 1.00E-01 1.00E-01 1.00
2-NITROANILINE 88-74-4 SV 3.00E-03 3.00E-05 0.1 1.00
3-NITROANILINE 99-09-2 SV 2.00E-02 2.00E-02 3.00E-04 3.00E-04 0.1 1.00
4-NITROANILINE 100-01-6 SV 2.00E-02 2.00E-02 3.00E-03 1.00E-03 0.1 1.00
NITROBENZENE 98-95-3 V 5.00E-04 6.00E-04 1.00
NITROGLYCERIN 55-63-0 SV 1.4E-02 1.4E-02 0.1 1.00
NITROGUANIDINE 556-88-7 SV 1.00E-01 1.00E-01 0.1 1.00
2-NITROPROPANE 79-46-9 V 9.40E+00 5.70E-03 1.00
N-NITROSO-DI-N-BUTYLAMINE 924-16-3 V 5.40E+00 5.60E+00 1.00
N-NITROSODIETHANOLAMINE 1116-54-7 SV 2.80E+00 2.80E+00 0.1 1.00
N-NITROSODIETHYLAMINE 55-18-5 SV 1.50E+02 1.50E+02 0.1 1.00
N-NITROSODIMETHYLAMINE 62-75-9 SV 5.10E+01 5.10E+01 8.00E-06 8.00E-06 0.1 1.00
N-NITROSODIPHENYLAMINE 86-30-6 SV 4.90E-03 4.90E-03 2.00E-02 2.00E-02 0.1 1.00
N-NITROSODIPROPYLAMINE 621-64-7 SV 7.00E+00 7.00E+00 0.1 1.00
N-NITROSO-N-METHYLETHYLAMINE 10595-95-6 SV 2.20E+01 2.20E+01 0.1 1.00
N-NITROSOPYRROLIDINE 930-55-2 SV 2.10E+00 2.10E+00 0.1 1.00
M-NITROTOLUENE 99-08-1 V 2.00E-02 2.00E-02 1.00
O-NITROTOLUENE 88-72-2 V 2.30E-01 2.30E-01 1.00E-02 1.00E-02 1.00
P-NITROTOLUENE 99-99-0 V 1.7E-02 1.7E-02 1.00E-02 1.00E-02 1.00
NUSTAR 85509-19-9 SV 7.00E-04 7.00E-04 0.1 1.00
ORYZALIN 19044-88-3 SV 5.00E-02 5.00E-02 0.1 1.00
OXADIAZON 19666-30-9 SV 5.00E-03 5.00E-03 0.1 1.00
OXAMYL 23135-22-0 SV 2.50E-02 2.50E-02 0.1 1.00
OXYFLUORFEN 42874-03-3 SV 3.00E-03 3.00E-03 0.1 1.00
PARAQUAT DICHLORIDE 1910-42-5 SV 4.50E-03 4.50E-03 0.1 1.00
PARATHION 56-38-2 SV 6.00E-03 6.00E-03 0.1 1.00
PENTACHLOROBENZENE 608-93-5 SV 8.00E-04 8.00E-04 0.1 1.00
PENTACHLORONITROBENZENE 82-68-8 SV 2.60E-01 2.60E-01 3.00E-03 3.00E-03 0.1 1.00
PENTACHLOROPHENOL 87-86-5 SV 1.20E-01 1.20E-01 3.00E-02 3.00E-02 0.25 1.00
Pentaerythritoltetranitrate 78-11-5 SV 1.10E-01 1.10E-01 3.00E-03 3.00E-03 0.1 1.00
PERCHLORATE 7601-90-3 M 7.00E-04 7.00E-04 1.00
PERMETHRIN 52645-53-1 SV 5.00E-02 5.00E-02 0.1 1.00
JMS/E082005001SLC PAGE 4 OF 6
Appendix B
Toxicity and Dermal Absorption Factors
Toxicity Factors
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Chemical StdCAS Group
SFo(Kg-day/mg)SFi(Kg-day/mg)RfDo(mg/Kg-day)RfDi(mg/Kg-day)ABS GI Factor
Yellow-highlighted inhalation toxicity factors adapted from the oral
factors. Blue highlights from IRIS.
PHENOL 108-95-2 SV 3.00E-01 3.00E-01 0.1 1.00
M-PHENYLENEDIAMINE 108-45-2 SV 6.00E-03 6.00E-03 0.1 1.00
O-PHENYLENEDIAMINE 95-54-5 SV 4.70E-02 4.70E-02 0.1 1.00
P-PHENYLENEDIAMINE 106-50-3 SV 1.90E-01 1.90E-01 0.1 1.00
PHOSPHINE 7803-51-2 SV 3.00E-04 8.60E-05 0.1 1.00
PHOSPHORIC ACID 7664-38-2 M 2.90E-03 1.00
PHOSPHORUS (WHITE)7723-14-0 M 2.00E-05 2.00E-05 1.00
PHTHALIC ANHYDRIDE 85-44-9 SV 2.00E+00 3.43E-02 0.1 1.00
POLYBROMINATED BIPHENYLS NA SV 8.90E+00 8.90E+00 7.00E-06 7.00E-06 0.1 1.00
POLYCHLORINATED BIPHENYLS 1336-36-3 SV 2.00E+00 2.00E+00 0.14 1.00
AROCLOR-1016 12674-11-2 SV 7.00E-02 7.00E-02 7.00E-05 7.00E-05 0.14 1.00
AROCLOR-1221 11104-28-2 SV 2.00E+00 2.00E+00 0.14 1.00
AROCLOR-1232 11141-16-5 SV 2.00E+00 2.00E+00 0.14 1.00
AROCLOR-1242 53469-21-9 SV 2.00E+00 2.00E+00 0.14 1.00
AROCLOR-1248 12672-29-6 SV 2.00E+00 2.00E+00 0.14 1.00
AROCLOR-1254 11097-69-1 SV 2.00E+00 2.00E+00 2.00E-05 2.00E-05 0.14 1.00
AROCLOR-1260 11096-82-5 SV 2.00E+00 2.00E+00 0.14 1.00
POLYCHLORINATED TERPHENYLS 61788-33-8 SV 4.50E+00 4.50E+00 0.1 1.00
POLYNUCLEAR AROMATIC HYDROCARBONS:NA SV 0.1 1.00
ACENAPHTHENE 83-32-9 V 6.00E-02 6.00E-02 0.13 1.00
ANTHRACENE 120-12-7 V 3.00E-01 3.00E-01 0.13 1.00
BENZ[A]ANTHRACENE 56-55-3 SV 7.30E-01 7.30E-01 0.13 1.00
BENZO[B]FLUORANTHENE 205-99-2 SV 7.30E-01 7.30E-01 0.13 1.00
BENZO[K]FLUORANTHENE 207-08-9 SV 7.30E-02 7.30E-02 0.13 1.00
BENZO[A]PYRENE 50-32-8 SV 7.30E+00 3.10E+00 0.13 1.00
CARBAZOLE 86-74-8 SV 2.00E-02 2.00E-02 0.13 1.00
CHRYSENE 218-01-9 SV 7.30E-03 7.30E-03 0.13 1.00
DIBENZ[A,H]ANTHRACENE 53-70-3 SV 7.30E+00 7.30E+00 0.13 1.00
FLUORANTHENE 206-44-0 SV 4.00E-02 4.00E-02 0.13 1.00
FLUORENE 86-73-7 V 4.00E-02 4.00E-02 0.13 1.00
INDENO[1,2,3-C,D]PYRENE 193-39-5 SV 7.30E-01 7.30E-01 0.13 1.00
2-METHYLNAPHTHALENE 91-57-6 V 4.00E-03 4.00E-03 0.13 1.00
NAPHTHALENE 91-20-3 V 2.00E-02 9.00E-04 0.13 1.00
PYRENE 129-00-0 V 3.00E-02 3.00E-02 0.13 1.00
PROMETON 1610-18-0 SV 1.50E-02 1.50E-02 0.1 1.00
PROMETRYN 7287-19-6 SV 4.00E-03 4.00E-03 0.1 1.00
PROPACHLOR 1918-16-7 SV 1.30E-02 1.30E-02 0.1 1.00
PROPARGITE 2312-35-8 SV 2.00E-02 2.00E-02 0.1 1.00
PROPYLENE GLYCOL 57-55-6 SV 5.00E-01 8.6E-04 0.1 1.00
PROPYLENE GLYCOL, MONOETHYL ETHER 52125-53-8 SV 7.00E-01 7.00E-01 0.1 1.00
PROPYLENE GLYCOL, MONOMETHYL ETHER 107-98-2 SV 7.00E-01 5.70E-01 0.1 1.00
PURSUIT 81335-77-5 SV 2.50E-01 2.50E-01 0.1 1.00
PYRIDINE 110-86-1 SV 1.00E-03 1.00E-03 0.1 1.00
QUINOLINE 91-22-5 SV 3.00E+00 3.00E+00 0.1 1.00
RDX 121-82-4 SV 1.10E-01 1.10E-01 3.00E-03 3.00E-03 0.1 1.00
RESMETHRIN 10453-86-8 SV 3.00E-02 3.00E-02 0.1 1.00
ROTENONE 83-79-4 SV 4.00E-03 4.00E-03 0.1 1.00
SELENIUM 7782-49-2 M 5.00E-03 5.00E-03 1.00
SILVER 7440-22-4 M 5.00E-03 5.00E-03 0.04
SIMAZINE 122-34-9 SV 1.20E-01 1.20E-01 5.00E-03 5.00E-03 0.1 1.00
SODIUM DIETHYLDITHIOCARBAMATE 148-18-5 SV 2.70E-01 2.70E-01 3.00E-02 3.00E-02 0.1 1.00
STRONTIUM, STABLE 7440-24-6 M 6.00E-01 6.00E-01 1.00
STRYCHNINE 57-24-9 SV 3.00E-04 3.00E-04 0.1 1.00
STYRENE 100-42-5 V 2.00E-01 2.86E-01 1.00
2,3,7,8-TETRACHLORODIBENZODIOXIN 1746-01-6 SV 1.50E+05 1.50E+05 0.03 1.00
1,2,4,5-TETRACHLOROBENZENE 95-94-3 SV 3.00E-04 3.00E-04 0.1 1.00
1,1,1,2-TETRACHLOROETHANE 630-20-6 V 2.60E-02 2.60E-02 3.00E-02 3.00E-02 1.00
1,1,2,2-TETRACHLOROETHANE 79-34-5 V 2.00E-01 2.00E-01 6.00E-02 6.00E-02 1.00
TETRACHLOROETHENE 127-18-4 V 5.4E-01 2.00E-02 1.00E-02 1.4E-01 1.00
2,3,4,6-TETRACHLOROPHENOL 58-90-2 SV 3.00E-02 3.00E-02 0.1 1.00
P,A,A,A-TETRACHLOROTOLUENE 5216-25-1 SV 2.00E+01 2.00E+01 0.1 1.00
1,1,1,2-TETRAFLUOROETHANE 811-97-2 V 2.29E+01 1.00
TETRAHYDROFURAN 109-99-9 SV 7.6E-03 6.8E-03 2.00E-01 8.6E-02 0.1 1.00
TETRYL 479-45-8 SV 4.00E-03 4.00E-03 0.1 1.00
THALLIUM 7440-28-0 M 7.00E-05 7.00E-05 1.00
THALLIUM ACETATE 563-68-8 M 9.00E-05 9.00E-05 1.00
THALLIUM CARBONATE 6533-73-9 M 8.00E-05 8.00E-05 1.00
THALLIUM CHLORIDE 7791-12-0 M 8.00E-05 8.00E-05 1.00
THALLIUM NITRATE 10102-45-1 M 9.00E-05 9.00E-05 1.00
THALLIUM SULFATE (2:1)7446-18-6 M 8.00E-05 8.00E-05 1.00
THIOBENCARB 28249-77-6 SV 1.00E-02 1.00E-02 0.1 1.00
TIN 7440-31-5 M 6.00E-01 6.00E-01 1.00
JMS/E082005001SLC PAGE 5 OF 6
Appendix B
Toxicity and Dermal Absorption Factors
Toxicity Factors
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Chemical StdCAS Group
SFo(Kg-day/mg)SFi(Kg-day/mg)RfDo(mg/Kg-day)RfDi(mg/Kg-day)ABS GI Factor
Yellow-highlighted inhalation toxicity factors adapted from the oral
factors. Blue highlights from IRIS.
TITANIUM 7440-32-6 M 4.00E+00 8.60E-03 1.00
TITANIUM DIOXIDE 13463-67-7 M 4.00E+00 8.60E-03 1.00
TOLUENE 108-88-3 V 2.00E-01 1.14E-01 1.00
TOLUENE-2,4-DIAMINE 95-80-7 SV 3.20E+00 3.20E+00 0.1 1.00
TOLUENE-2,5-DIAMINE 95-70-5 SV 6.00E-01 6.00E-01 0.1 1.00
TOLUENE-2,6-DIAMINE 823-40-5 SV 2.00E-01 2.00E-01 0.1 1.00
P-TOLUIDINE 106-49-0 SV 1.90E-01 1.90E-01 0.1 1.00
TOXAPHENE 8001-35-2 SV 1.10E+00 1.10E+00 0.1 1.00
1,2,4-TRIBROMOBENZENE 615-54-3 SV 5.00E-03 5.00E-03 0.1 1.00
TRIBUTYLTIN OXIDE 56-35-9 SV 3.00E-04 3.00E-04 0.1 1.00
2,4,6-TRICHLOROANILINE 634-93-5 SV 3.40E-02 3.40E-02 0.1 1.00
1,2,4-TRICHLOROBENZENE 120-82-1 V 1.00E-02 1.00E-03 1.00
1,1,1-TRICHLOROETHANE 71-55-6 V 2.80E-01 6.30E-01 1.00
1,1,2-TRICHLOROETHANE 79-00-5 V 5.70E-02 5.60E-02 4.00E-03 4.00E-03 1.00
TRICHLOROETHENE 79-01-6 V 4.00E-01 4.00E-01 3.00E-04 1.00E-02 1.00
TRICHLOROFLUOROMETHANE 75-69-4 V 3.00E-01 2.00E-01 1.00
2,4,5-TRICHLOROPHENOL 95-95-4 SV 1.00E-01 1.00E-01 0.1 1.00
2,4,6-TRICHLOROPHENOL 88-06-2 SV 1.10E-02 1.00E-02 0.1 1.00
2,4,5-T 93-76-5 SV 1.00E-02 1.00E-02 0.1 1.00
2-(2,4,5-TRICHLOROPHENOXY)PROPIONIC ACID 93-72-1 SV 8.00E-03 8.00E-03 0.1 1.00
1,1,2-TRICHLOROPROPANE 598-77-6 V 5.00E-03 5.00E-03 1.00
1,2,3-TRICHLOROPROPANE 96-18-4 V 2.00E+00 2.00E+00 6.00E-03 1.4E-03 1.00
1,2,3-TRICHLOROPROPENE 96-19-5 V 1.00E-02 3.00E-04 1.00
1,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE 76-13-1 V 3.00E+01 8.60E+00 1.00
1,2,4-TRIMETHYLBENZENE 95-63-6 V 5.00E-02 1.70E-03 1.00
1,3,5-TRIMETHYLBENZENE 108-67-8 V 5.00E-02 1.70E-03 1.00
1,3,5-TRINITROBENZENE 99-35-4 SV 3.00E-02 3.00E-02 0.1 1.00
2,4,6-TRINITROTOLUENE 118-96-7 SV 3.00E-02 3.00E-02 5.00E-04 5.00E-04 0.1 1.00
URANIUM (SOLUBLE SALTS; from IRIS)7440-61-1 M 3.00E-03 3.00E-03 1.00
URANIUM (SOLUBLE SALTS; provisional)7440-61-1 M 2.00E-04 2.00E-04 1.00
VANADIUM 7440-62-2 M 1.00E-03 1.00E-03 0.03
VINCLOZOLIN 50471-44-8 SV 2.50E-02 2.50E-02 0.1 1.00
VINYL ACETATE 108-05-4 V 1.00E+00 5.71E-02 1.00
VINYL CHLORIDE: adult (see cover memos)75-01-4 V 7.20E-01 1.5E-02 3.00E-03 2.8E-02 1.00
WARFARIN 81-81-2 SV 3.00E-04 3.00E-04 0.1 1.00
O-XYLENE 95-47-6 V 2.00E-01 3.00E-02 1.00
M,P-XYLENES 1330-20-7 V 2.00E-01 3.00E-02 1.00
XYLENES 1330-20-7 V 2.00E-01 3.00E-02 1.00
ZINC 7440-66-6 M 3.00E-01 3.00E-01 1.00
ZINEB 12122-67-7 SV 5E-02 5E-02 0.1 1.00
JMS/E082005001SLC PAGE 6 OF 6
APPENDIX C
Risk-Based Soil Concentrations
for the Industrial Worker
Appendix C Risk-based Soil Concentrations for the Industrial Worker
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Chemical CAS No. Group Oral Dermal Inhalation Combined Oral Dermal Inhalation Combined Final Basis
ACETALDEHYDE 75-07-0 V 1.90E+05 1.90E+05 6.71E+05 6.71E+05 1.90E+05 C
ACETOCHLOR 34256-82-1 SV 2.04E+04 5.22E+06 2.04E+04 2.04E+04 NC
ACETONE 67-64-1 V 9.20E+05 2.35E+08 9.16E+05 9.16E+05 NC
ACETONITRILE 75-05-8 V 4.44E+06 4.44E+06 4.44E+06 NC
ACETOPHENONE 98-86-2 V 1.02E+05 2.61E+07 1.02E+05 1.02E+05 NC
ACROLEIN 107-02-8 V 5.11E+02 1.49E+03 3.80E+02 3.80E+02 NC
ACRYLAMIDE 79-06-1 SV 6.36E-01 3.25E+02 6.35E-01 2.04E+02 5.22E+04 2.04E+02 6.35E-01 C
ACRYLONITRILE 107-13-1 V 5.30E+00 6.09E+03 5.29E+00 1.02E+03 1.49E+05 1.02E+03 5.29E+00 C
ALACHLOR 15972-60-8 SV 3.58E+01 1.83E+04 3.57E+01 1.02E+04 2.61E+06 1.02E+04 3.57E+01 C
ALAR 1596-84-5 SV 1.53E+05 3.92E+07 1.53E+05 1.53E+05 NC
ALDICARB 116-06-3 SV 1.02E+03 2.61E+05 1.02E+03 1.02E+03 NC
ALDICARB SULFONE 1646-88-4 SV 1.02E+03 2.61E+05 1.02E+03 1.02E+03 NC
ALDRIN 309-00-2 SV 1.68E-01 8.60E+01 1.68E-01 3.07E+01 7.83E+03 3.05E+01 1.68E-01 C
ALLYL CHLORIDE 107-05-1 V 7.46E+04 7.46E+04 7.46E+04 NC
ALUMINUM 7429-90-5 M 1.02E+06 2.61E+05 2.08E+05 2.08E+05 NC
AMINODINITROTOLUENES NA SV 2.04E+03 5.22E+05 2.04E+03 2.04E+03 NC
AMMONIA 7664-41-7 V 7.47E+06 7.47E+06 7.47E+06 NC
ANILINE 62-53-3 SV 5.02E+02 2.57E+05 5.01E+02 7.15E+03 7.57E+04 6.54E+03 5.01E+02 C
ANTIMONY 7440-36-0 M 4.09E+02 1.04E+05 4.07E+02 4.07E+02 NC
ANTIMONY TRIOXIDE 1309-64-4 M 4.09E+02 1.49E+04 3.98E+02 3.98E+02 NC
ARSENIC 7440-38-2 M 1.91E+00 9.64E+00 9.68E+01 1.57E+00 3.07E+02 1.55E+03 7.83E+04 2.55E+02 1.57E+00 C
ARSINE 7784-42-1 V 3.66E+03 3.66E+03 3.66E+03 NC
ASSURE 76578-14-8 SV 9.20E+03 2.35E+06 9.16E+03 9.16E+03 NC
ATRAZINE 1912-24-9 SV 1.30E+01 6.65E+03 1.30E+01 3.58E+04 9.14E+06 3.56E+04 1.30E+01 C
BARIUM 7440-39-3 M 7.15E+04 3.66E+04 2.42E+04 2.42E+04 NC
BAYGON 114-26-1 SV 4.09E+03 1.04E+06 4.07E+03 4.07E+03 NC
BAYTHROID 68359-37-5 SV 2.56E+04 6.53E+06 2.55E+04 2.55E+04 NC
BENTAZON 25057-89-0 SV 3.07E+04 3.57E+04 7.83E+06 1.65E+04 1.65E+04 NC
BENZALDEHYDE 100-52-7 SV 1.02E+05 2.61E+07 1.02E+05 1.02E+05 NC
BENZENE 71-43-2 V 5.20E+01 5.42E+04 5.20E+01 4.09E+03 2.25E+06 4.08E+03 5.20E+01 C
BENZENETHIOL 108-98-5 V 1.02E+01 2.61E+03 1.02E+01 1.02E+01 NC
BENZIDINE 92-87-5 SV 1.24E-02 6.36E+00 1.24E-02 3.07E+03 7.83E+05 3.05E+03 1.24E-02 C
BENZOIC ACID 65-85-0 SV 4.09E+06 1.04E+09 4.07E+06 4.07E+06 NC
BENZYL ALCOHOL 100-51-6 SV 3.07E+05 7.83E+07 3.05E+05 3.05E+05 NC
BENZYL CHLORIDE 100-44-7 V 1.68E+01 8.60E+03 1.68E+01 2.04E+03 5.22E+05 2.04E+03 1.68E+01 C
BERYLLIUM 7440-41-7 M 1.74E+02 1.74E+02 2.04E+03 1.49E+03 8.61E+02 1.74E+02 C
BIPHENYL 92-52-4 V 5.11E+04 1.31E+07 5.09E+04 5.09E+04 NC
BIS(2-CHLOROETHYL)ETHER 111-44-4 V 2.60E+00 1.33E+03 2.60E+00 2.60E+00 C
BIS(2-CHLOROISOPROPYL)ETHER 108-60-1 V 4.09E+01 4.18E+04 4.08E+01 4.09E+04 1.04E+07 4.07E+04 4.08E+01 C
BIS(CHLOROMETHYL)ETHER 542-88-1 V 1.30E-02 6.65E+00 1.30E-02 1.30E-02 C
BIS(2-ETHYLHEXYL)PHTHALATE 117-81-7 SV 2.04E+02 1.04E+05 2.04E+02 2.04E+04 5.22E+06 2.04E+04 2.04E+02 C
BORON 7440-42-8 M 2.04E+05 1.49E+06 1.80E+05 1.80E+05 NC
BROMOBENZENE 108-86-1 V 2.04E+04 7.83E+05 1.99E+04 1.99E+04 NC
BROMODICHLOROMETHANE 75-27-4 V 4.62E+01 2.36E+04 4.61E+01 2.04E+04 5.22E+06 2.04E+04 4.61E+01 C
BROMOETHENE 593-60-2 V 1.33E+04 1.33E+04 2.25E+05 2.25E+05 1.33E+04 C
BROMOFORM 75-25-2 SV 3.62E+02 3.75E+05 3.62E+02 2.04E+04 5.22E+06 2.04E+04 3.62E+02 C
BROMOMETHANE 74-83-9 V 1.43E+03 3.66E+05 1.43E+03 1.43E+03 NC
BROMOPHOS 2104-96-3 SV 5.11E+03 1.31E+06 5.09E+03 5.09E+03 NC
1,3-BUTADIENE 106-99-0 V 1.46E+04 1.46E+04 1.49E+05 1.49E+05 1.46E+04 C
1-BUTANOL 71-36-3 SV 1.02E+05 2.61E+07 1.02E+05 1.02E+05 NC
BUTYLBENZYLPHTHALATE 85-68-7 SV 1.51E+03 7.70E+05 1.50E+03 2.04E+05 5.22E+07 2.04E+05 1.50E+03 C
CADMIUM-FOOD 7440-43-9 M 2.32E+02 2.32E+02 1.02E+03 6.19E+06 1.49E+04 9.56E+02 2.32E+02 C
CAPROLACTAM 105-60-2 SV 5.11E+05 1.31E+08 5.09E+05 5.09E+05 NC
CARBARYL 63-25-2 SV 1.02E+05 2.61E+07 1.02E+05 1.02E+05 NC
Carcinogenic Risk-basedConcentration (mg/Kg)Non-carcinogenic Risk-basedConcentration (mg/Kg)
JMS/E082005001SLC PAGE 1 OF 8
Appendix C Risk-based Soil Concentrations for the Industrial Worker
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Chemical CAS No. Group Oral Dermal Inhalation Combined Oral Dermal Inhalation Combined Final Basis
Carcinogenic Risk-basedConcentration (mg/Kg)Non-carcinogenic Risk-basedConcentration (mg/Kg)
CARBON DISULFIDE 75-15-0 V 1.02E+05 5.22E+07 1.02E+05 1.02E+05 NC
CARBON TETRACHLORIDE 56-23-5 V 2.20E+01 2.76E+04 2.20E+01 7.15E+02 1.31E+07 7.15E+02 2.20E+01 C
CARBOSULFAN 55285-14-8 SV 1.02E+04 2.61E+06 1.02E+04 1.02E+04 NC
CHLORAL HYDRATE 302-17-0 SV 1.02E+05 2.61E+07 1.02E+05 1.02E+05 NC
CHLORANIL 118-75-2 SV 7.15E+00 3.66E+03 7.14E+00 7.14E+00 C
CHLORDANE 57-74-9 SV 8.18E+00 3.10E+01 4.18E+03 6.46E+00 5.11E+02 1.94E+03 5.22E+04 4.01E+02 6.46E+00 C
CHLORINE 7782-50-5 V 1.02E+05 1.49E+04 1.30E+04 1.30E+04 NC
CHLORINE DIOXIDE 10049-04-4 V 3.07E+04 1.49E+04 1.00E+04 1.00E+04 NC
CHLOROACETIC ACID 79-11-8 SV 2.04E+03 5.22E+05 2.04E+03 2.04E+03 NC
4-CHLOROANILINE 106-47-8 SV 5.30E+01 2.71E+04 5.29E+01 4.09E+03 1.04E+06 4.07E+03 5.29E+01 C
CHLOROBENZENE 108-90-7 V 2.04E+04 4.44E+06 2.03E+04 2.03E+04 NC
2-CHLORO-1,3-BUTADIENE 126-99-8 V 2.04E+04 5.22E+05 1.97E+04 1.97E+04 NC
1-CHLORO-1,1-DIFLUOROETHANE 75-68-3 V 3.66E+09 3.66E+09 3.66E+09 NC
CHLORODIFLUOROMETHANE 75-45-6 V 3.66E+09 3.66E+09 3.66E+09 NC
CHLOROETHANE 75-00-3 V 9.87E+02 5.04E+05 9.85E+02 4.09E+05 7.57E+08 4.09E+05 9.85E+02 C
CHLOROFORM 67-66-3 V 1.81E+04 1.81E+04 1.02E+04 3.66E+06 1.02E+04 1.02E+04 NC
CHLOROMETHANE 74-87-3 V 6.79E+06 6.79E+06 6.79E+06 NC
4-CHLORO-2-METHYLANILINE 95-69-2 SV 4.93E+00 2.52E+03 4.92E+00 4.92E+00 C
BETA-CHLORONAPHTHALENE 91-58-7 V 8.18E+04 2.09E+07 8.14E+04 8.14E+04 NC
O-CHLORONITROBENZENE 88-73-3 V 2.95E+02 1.51E+05 2.94E+02 1.02E+03 5.22E+03 8.55E+02 2.94E+02 C
P-CHLORONITROBENZENE 100-00-5 V 4.27E+02 2.18E+05 4.26E+02 1.02E+03 4.44E+04 9.99E+02 4.26E+02 C
2-CHLOROPHENOL 95-57-8 V 5.11E+03 1.31E+06 5.09E+03 5.09E+03 NC
2-CHLOROPROPANE 75-29-6 V 7.57E+06 7.57E+06 7.57E+06 NC
O-CHLOROTOLUENE 95-49-8 V 2.04E+04 5.22E+06 2.04E+04 2.04E+04 NC
CHLORPYRIFOS 2921-88-2 SV 3.07E+03 7.83E+05 3.05E+03 3.05E+03 NC
CHLORPYRIFOS-METHYL 5598-13-0 SV 1.02E+04 2.61E+06 1.02E+04 1.02E+04 NC
CHROMIUM 7440-47-3 M 1.53E+06 3.92E+08 1.53E+06 1.53E+06 NC
CHROMIUM III 16065-83-1 M 1.53E+06 3.92E+08 1.53E+06 1.53E+06 NC
CHROMIUM VI 18540-29-9 M 3.57E+01 3.57E+01 3.07E+03 7.83E+03 2.20E+03 3.57E+01 C
COBALT 7440-48-4 M 1.49E+02 1.49E+02 2.04E+04 1.49E+03 1.39E+03 1.49E+02 C
COKE OVEN EMISSIONS (COAL TAR)8007-45-2 SV 6.65E+02 6.65E+02 6.65E+02 C
COPPER 7440-50-8 M 4.09E+04 1.04E+07 4.07E+04 4.07E+04 NC
CUMENE 98-82-8 V 1.02E+05 2.87E+07 1.02E+05 1.02E+05 NC
CYANIDE (FREE)57-12-5 M 2.04E+04 5.22E+06 2.04E+04 2.04E+04 NC
CALCIUM CYANIDE 592-01-8 M 4.09E+04 1.04E+07 4.07E+04 4.07E+04 NC
COPPER CYANIDE 544-92-3 M 5.11E+03 1.31E+06 5.09E+03 5.09E+03 NC
CYANOGEN 460-19-5 V 4.09E+04 1.04E+07 4.07E+04 4.07E+04 NC
HYDROGEN CYANIDE 74-90-8 V 2.04E+04 2.25E+05 1.87E+04 1.87E+04 NC
POTASSIUM CYANIDE 151-50-8 M 5.11E+04 1.31E+07 5.09E+04 5.09E+04 NC
POTASSIUM SILVER CYANIDE 506-61-6 M 2.04E+05 5.22E+07 2.04E+05 2.04E+05 NC
SILVER CYANIDE 506-64-9 M 1.02E+05 2.61E+07 1.02E+05 1.02E+05 NC
SODIUM CYANIDE 143-33-9 M 4.09E+04 1.04E+07 4.07E+04 4.07E+04 NC
THIOCYANATE NA M 1.02E+02 2.61E+04 1.02E+02 1.02E+02 NC
ZINC CYANIDE 557-21-1 M 5.11E+04 1.31E+07 5.09E+04 5.09E+04 NC
CYCLOHEXANE 110-82-7 V 4.44E+08 4.44E+08 4.44E+08 NC
CYCLOHEXANONE 108-94-1 SV 5.11E+06 1.31E+09 5.09E+06 5.09E+06 NC
CYHALOTHRIN/KARATE 68085-85-8 SV 5.11E+03 1.31E+06 5.09E+03 5.09E+03 NC
CYPERMETHRIN 52315-07-8 SV 1.02E+04 2.61E+06 1.02E+04 1.02E+04 NC
DACTHAL 1861-32-1 SV 1.02E+04 2.61E+06 1.02E+04 1.02E+04 NC
DALAPON 75-99-0 SV 3.07E+04 7.83E+06 3.05E+04 3.05E+04 NC
DDD 72-54-8 SV 1.19E+01 6.09E+03 1.19E+01 2.04E+03 5.22E+05 2.04E+03 1.19E+01 C
DDE 72-55-9 SV 8.42E+00 4.30E+03 8.40E+00 8.40E+00 C
DDT 50-29-3 SV 8.42E+00 4.25E+01 4.30E+03 7.01E+00 5.11E+02 2.58E+03 1.31E+05 4.25E+02 7.01E+00 C
DIAZINON 333-41-5 SV 9.20E+02 2.35E+05 9.16E+02 9.16E+02 NC
JMS/E082005001SLC PAGE 2 OF 8
Appendix C Risk-based Soil Concentrations for the Industrial Worker
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Chemical CAS No. Group Oral Dermal Inhalation Combined Oral Dermal Inhalation Combined Final Basis
Carcinogenic Risk-basedConcentration (mg/Kg)Non-carcinogenic Risk-basedConcentration (mg/Kg)
DIBENZOFURAN 132-64-9 V 2.04E+03 5.22E+05 2.04E+03 2.04E+03 NC
1,4-DIBROMOBENZENE 106-37-6 SV 1.02E+04 2.61E+06 1.02E+04 1.02E+04 NC
DIBROMOCHLOROMETHANE 124-48-1 V 3.41E+01 1.74E+04 3.40E+01 2.04E+04 5.22E+06 2.04E+04 3.40E+01 C
1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 V 2.04E+00 6.09E+05 2.04E+00 1.49E+04 1.49E+04 2.04E+00 C
1,2-DIBROMOETHANE 106-93-4 V 1.43E+00 7.31E+02 1.43E+00 9.20E+03 6.79E+05 9.08E+03 1.43E+00 C
DIBUTYLPHTHALATE 84-74-2 SV 1.02E+05 2.61E+07 1.02E+05 1.02E+05 NC
DICAMBA 1918-00-9 SV 3.07E+04 7.83E+06 3.05E+04 3.05E+04 NC
1,2-DICHLOROBENZENE 95-50-1 V 9.20E+04 1.04E+07 9.12E+04 9.12E+04 NC
1,3-DICHLOROBENZENE 541-73-1 V 3.07E+03 7.83E+05 3.05E+03 3.05E+03 NC
1,4-DICHLOROBENZENE 106-46-7 V 1.19E+02 6.65E+04 1.19E+02 3.07E+04 5.98E+07 3.06E+04 1.19E+02 C
3,3'-DICHLOROBENZIDINE 91-94-1 SV 6.36E+00 3.25E+03 6.35E+00 6.35E+00 C
DICHLORODIFLUOROMETHANE 75-71-8 V 2.04E+05 1.31E+07 2.01E+05 2.01E+05 NC
1,1-DICHLOROETHANE 75-34-3 V 2.04E+05 3.66E+07 2.03E+05 2.03E+05 NC
1,2-DICHLOROETHANE 107-06-2 V 3.14E+01 1.61E+04 3.14E+01 2.04E+04 1.83E+08 2.04E+04 3.14E+01 C
1,1-DICHLOROETHENE 75-35-4 V 5.11E+04 1.57E+07 5.09E+04 5.09E+04 NC
CIS-1,2-DICHLOROETHENE 156-59-2 V 1.02E+04 2.61E+06 1.02E+04 1.02E+04 NC
TRANS-1,2-DICHLOROETHENE 156-60-5 V 2.04E+04 4.44E+06 2.03E+04 2.03E+04 NC
TOTAL 1,2-DICHLOROETHENE 540-59-0 V 9.20E+03 2.35E+06 9.16E+03 9.16E+03 NC
2,4-DICHLOROPHENOL 120-83-2 SV 3.07E+03 7.83E+05 3.05E+03 3.05E+03 NC
2,4-D 94-75-7 SV 1.02E+04 3.10E+04 2.61E+06 7.66E+03 7.66E+03 NC
4-(2,4-DICHLOROPHENOXY)BUTYRIC ACID 94-82-6 SV 8.18E+03 2.09E+06 8.14E+03 8.14E+03 NC
1,2-DICHLOROPROPANE 78-87-5 V 4.21E+01 2.15E+04 4.20E+01 2.98E+05 2.98E+05 4.20E+01 C
1,3-DICHLOROPROPANE 142-28-9 V 2.04E+04 5.22E+06 2.04E+04 2.04E+04 NC
2,3-DICHLOROPROPANOL 616-23-9 SV 3.07E+03 7.83E+05 3.05E+03 3.05E+03 NC
1,3-DICHLOROPROPENE 542-75-6 V 2.86E+01 1.46E+05 2.86E+01 3.07E+04 1.49E+06 3.00E+04 2.86E+01 C
DICHLORVOS 62-73-7 SV 9.87E+00 5.04E+03 9.85E+00 5.11E+02 3.73E+04 5.04E+02 9.85E+00 C
DIELDRIN 60-57-1 SV 1.79E-01 9.14E+01 1.79E-01 5.11E+01 1.31E+04 5.09E+01 1.79E-01 C
DIESEL EMISSIONS NA SV 3.66E+05 3.66E+05 3.66E+05 NC
DIETHYLPHTHALATE 84-66-2 SV 8.18E+05 2.09E+08 8.14E+05 8.14E+05 NC
DIETHYLENE GLYCOL, MONOBUTYL ETHER 112-34-5 SV 1.02E+04 1.49E+06 1.02E+04 1.02E+04 NC
DIETHYLENE GLYCOL, MONOETHYL ETHER 111-90-0 SV 6.13E+04 2.25E+05 4.82E+04 4.82E+04 NC
DI(2-ETHYLHEXYL)ADIPATE 103-23-1 SV 2.38E+03 1.22E+06 2.38E+03 6.13E+05 1.57E+08 6.11E+05 2.38E+03 C
DIETHYLSTILBESTROL 56-53-1 SV 6.09E-04 3.11E-01 6.08E-04 6.08E-04 C
DIFENZOQUAT (AVENGE) 43222-48-6 SV 8.18E+04 2.09E+07 8.14E+04 8.14E+04 NC
1,1-DIFLUOROETHANE 75-37-6 V 2.87E+09 2.87E+09 2.87E+09 NC
DIISOPROPYL METHYLPHOSPHONATE (DIMP) 1445-75-6 SV 8.18E+04 2.09E+07 8.14E+04 8.14E+04 NC
3,3'-DIMETHOXYBENZIDINE 119-90-4 SV 2.04E+02 1.04E+05 2.04E+02 2.04E+02 C
N,N-DIMETHYLANILINE 121-69-7 SV 2.04E+03 5.22E+05 2.04E+03 2.04E+03 NC
3,3'-DIMETHYLBENZIDINE 119-93-7 SV 1.24E+00 6.36E+02 1.24E+00 1.24E+00 C
2,4-DIMETHYLPHENOL 105-67-9 SV 2.04E+04 5.22E+06 2.04E+04 2.04E+04 NC
2,6-DIMETHYLPHENOL 576-26-1 SV 6.13E+02 1.57E+05 6.11E+02 6.11E+02 NC
3,4-DIMETHYLPHENOL 95-65-8 SV 1.02E+03 2.61E+05 1.02E+03 1.02E+03 NC
DIMETHYLPHTHALATE 131-11-3 SV 1.02E+07 2.61E+09 1.02E+07 1.02E+07 NC
1,2-DINITROBENZENE 528-29-0 SV 1.02E+02 2.61E+04 1.02E+02 1.02E+02 NC
1,3-DINITROBENZENE 99-65-0 SV 1.02E+02 2.61E+04 1.02E+02 1.02E+02 NC
1,4-DINITROBENZENE 100-25-4 SV 1.02E+02 2.61E+04 1.02E+02 1.02E+02 NC
4,6-DINITRO-O-CYCLOHEXYL PHENOL 131-89-5 SV 2.04E+03 5.22E+05 2.04E+03 2.04E+03 NC
4,6-DINITRO-2-METHYLPHENOL 534-52-1 SV 1.02E+02 2.61E+04 1.02E+02 1.02E+02 NC
2,4-DINITROPHENOL 51-28-5 SV 2.04E+03 5.22E+05 2.04E+03 2.04E+03 NC
DINITROTOLUENE MIX NA SV 4.21E+00 2.15E+03 4.20E+00 4.20E+00 C
2,4-DINITROTOLUENE 121-14-2 SV 2.04E+03 5.22E+05 2.04E+03 2.04E+03 NC
2,6-DINITROTOLUENE 606-20-2 SV 1.02E+03 2.61E+05 1.02E+03 1.02E+03 NC
DINOSEB 88-85-7 SV 1.02E+03 2.61E+05 1.02E+03 1.02E+03 NC
DIOCTYLPHTHALATE 117-84-0 SV 4.09E+04 1.04E+07 4.07E+04 4.07E+04 NC
JMS/E082005001SLC PAGE 3 OF 8
Appendix C Risk-based Soil Concentrations for the Industrial Worker
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Chemical CAS No. Group Oral Dermal Inhalation Combined Oral Dermal Inhalation Combined Final Basis
Carcinogenic Risk-basedConcentration (mg/Kg)Non-carcinogenic Risk-basedConcentration (mg/Kg)
1,4-DIOXANE 123-91-1 SV 2.60E+02 1.33E+05 2.60E+02 2.60E+02 C
DIPHENYLAMINE 122-39-4 SV 2.56E+04 6.53E+06 2.55E+04 2.55E+04 NC
1,2-DIPHENYLHYDRAZINE 122-66-7 SV 3.58E+00 1.83E+03 3.57E+00 3.57E+00 C
DIQUAT 85-00-7 SV 2.25E+03 5.74E+05 2.24E+03 2.24E+03 NC
DISULFOTON 298-04-4 SV 4.09E+01 1.04E+04 4.07E+01 4.07E+01 NC
1,4-DITHIANE 505-29-3 SV 1.02E+04 2.61E+06 1.02E+04 1.02E+04 NC
DIURON 330-54-1 SV 2.04E+03 5.22E+05 2.04E+03 2.04E+03 NC
ENDOSULFAN 115-29-7 SV 6.13E+03 1.57E+06 6.11E+03 6.11E+03 NC
ENDRIN 72-20-8 SV 3.07E+02 7.83E+04 3.05E+02 3.05E+02 NC
EPICHLOROHYDRIN 106-89-8 V 2.89E+02 3.48E+05 2.89E+02 2.04E+03 7.47E+04 1.99E+03 2.89E+02 C
ETHION 563-12-2 SV 5.11E+02 7.74E+02 1.31E+05 3.07E+02 3.07E+02 NC
ETHYL ACETATE 141-78-6 V 9.20E+05 2.35E+08 9.16E+05 9.16E+05 NC
ETHYLBENZENE 100-41-4 V 1.02E+05 7.57E+07 1.02E+05 1.02E+05 NC
ETHYLENE DIAMINE 107-15-3 SV 9.20E+04 1.39E+05 2.35E+07 5.53E+04 5.53E+04 NC
ETHYLENE GLYCOL 107-21-1 SV 2.04E+06 3.10E+06 5.22E+08 1.23E+06 1.23E+06 NC
ETHYLENE GLYCOL, MONOBUTYL ETHER 111-76-2 SV 5.11E+05 7.74E+05 9.66E+08 3.08E+05 3.08E+05 NC
ETHYLENE OXIDE 75-21-8 V 2.86E+00 4.18E+03 2.86E+00 2.86E+00 C
ETHYL ETHER 60-29-7 V 2.04E+05 5.22E+07 2.04E+05 2.04E+05 NC
FENAMIPHOS 22224-92-6 SV 2.56E+02 3.87E+02 6.53E+04 1.54E+02 1.54E+02 NC
FLUOMETURON 2164-17-2 SV 1.33E+04 2.01E+04 3.39E+06 7.98E+03 7.98E+03 NC
FLUORINE 7782-41-4 M 6.13E+04 1.57E+07 6.11E+04 6.11E+04 NC
FOMESAFEN 72178-02-0 SV 1.51E+01 2.28E+01 7.70E+03 9.06E+00 9.06E+00 C
FONOFOS 944-22-9 SV 2.04E+03 3.10E+03 5.22E+05 1.23E+03 1.23E+03 NC
FORMALDEHYDE 50-00-0 SV 3.25E+04 3.25E+04 2.04E+05 3.10E+05 5.22E+07 1.23E+05 3.25E+04 C
FURAN 110-00-9 V 1.02E+03 2.61E+05 1.02E+03 1.02E+03 NC
FURFURAL 98-01-1 SV 3.07E+03 4.65E+03 2.61E+06 1.85E+03 1.85E+03 NC
GLYPHOSATE 1071-83-6 SV 1.02E+05 1.55E+05 2.61E+07 6.14E+04 6.14E+04 NC
HEPTACHLOR 76-44-8 SV 6.36E-01 9.64E-01 3.25E+02 3.83E-01 5.11E+02 7.74E+02 1.31E+05 3.07E+02 3.83E-01 C
HEPTACHLOR EPOXIDE 1024-57-3 SV 3.14E-01 4.76E-01 1.61E+02 1.89E-01 1.33E+01 2.01E+01 3.39E+03 7.98E+00 1.89E-01 C
HEXABROMOBENZENE 87-82-1 SV 2.04E+03 3.10E+03 5.22E+05 1.23E+03 1.23E+03 NC
HEXACHLOROBENZENE 118-74-1 SV 1.79E+00 2.71E+00 9.14E+02 1.08E+00 8.18E+02 1.24E+03 2.09E+05 4.91E+02 1.08E+00 C
HEXACHLOROBUTADIENE 87-68-3 SV 3.67E+01 5.56E+01 1.87E+04 2.21E+01 2.04E+02 3.10E+02 5.22E+04 1.23E+02 2.21E+01 C
ALPHA-HCH 319-84-6 SV 4.54E-01 6.88E-01 2.32E+02 2.73E-01 2.73E-01 C
BETA-HCH 319-85-7 SV 1.59E+00 2.41E+00 8.12E+02 9.57E-01 9.57E-01 C
GAMMA-HCH (LINDANE) 58-89-9 SV 2.20E+00 8.34E+00 1.12E+03 1.74E+00 3.07E+02 1.16E+03 7.83E+04 2.42E+02 1.74E+00 C
TECHNICAL HCH 608-73-1 SV 1.59E+00 2.41E+00 8.12E+02 9.57E-01 9.57E-01 C
HEXACHLOROCYCLOPENTADIENE 77-47-4 SV 6.13E+03 9.29E+03 1.49E+04 2.96E+03 2.96E+03 NC
HEXACHLORODIBENZODIOXIN MIX 19408-74-3 SV 4.62E-04 6.99E-04 3.21E-01 2.78E-04 2.78E-04 C
HEXACHLOROETHANE 67-72-1 SV 2.04E+02 3.10E+02 1.04E+05 1.23E+02 1.02E+03 1.55E+03 2.61E+05 6.14E+02 1.23E+02 C
HEXACHLOROPHENE 70-30-4 SV 3.07E+02 4.65E+02 7.83E+04 1.84E+02 1.84E+02 NC
1,6-HEXAMETHYLENE DIISOCYANATE 822-06-0 SV 7.57E+02 7.57E+02 7.57E+02 NC
HEXANE 110-54-3 V 1.12E+07 1.49E+07 6.41E+06 6.41E+06 NC
HMX 2691-41-0 SV 5.11E+04 7.74E+04 1.31E+07 3.07E+04 3.07E+04 NC
HYDRAZINE 302-01-2 V 9.54E-01 8.60E+01 9.43E-01 9.43E-01 C
HYDROGEN CHLORIDE 7647-01-0 V 1.49E+06 1.49E+06 1.49E+06 NC
HYDROGEN SULFIDE 7783-06-4 V 3.07E+03 1.49E+05 3.00E+03 3.00E+03 NC
HYDROQUINONE 123-31-9 SV 5.11E+01 7.74E+01 2.61E+04 3.07E+01 4.09E+04 6.19E+04 1.04E+07 2.46E+04 3.07E+01 C
IRON 7439-89-6 M 3.07E+05 7.83E+07 3.05E+05 3.05E+05 NC
ISOBUTANOL 78-83-1 V 3.07E+05 7.83E+07 3.05E+05 3.05E+05 NC
ISOPHORONE 78-59-1 SV 3.01E+03 4.56E+03 1.54E+06 1.81E+03 2.04E+05 3.10E+05 5.22E+07 1.23E+05 1.81E+03 C
TETRAETHYLLEAD 78-00-2 V 1.02E-01 2.61E+01 1.02E-01 1.02E-01 NC
KEPONE 143-50-0 SV 3.58E-01 5.42E-01 1.83E+02 2.15E-01 2.04E+02 3.10E+02 5.22E+04 1.23E+02 2.15E-01 C
LITHIUM 7439-93-2 M 2.04E+04 5.22E+06 2.04E+04 2.04E+04 NC
MALATHION 121-75-5 SV 2.04E+04 3.10E+04 5.22E+06 1.23E+04 1.23E+04 NC
JMS/E082005001SLC PAGE 4 OF 8
Appendix C Risk-based Soil Concentrations for the Industrial Worker
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Chemical CAS No. Group Oral Dermal Inhalation Combined Oral Dermal Inhalation Combined Final Basis
Carcinogenic Risk-basedConcentration (mg/Kg)Non-carcinogenic Risk-basedConcentration (mg/Kg)
MALEIC ANHYDRIDE 108-31-6 SV 1.02E+05 1.55E+05 2.61E+07 6.14E+04 6.14E+04 NC
MANGANESE-FOOD 7439-96-5 M 1.43E+05 3.73E+03 3.64E+03 3.64E+03 NC
MEPHOSFOLAN 950-10-7 SV 9.20E+01 1.39E+02 2.35E+04 5.53E+01 5.53E+01 NC
MEPIQUAT CHLORIDE 24307-26-4 SV 3.07E+04 4.65E+04 7.83E+06 1.84E+04 1.84E+04 NC
MERCURIC CHLORIDE 7487-94-7 M 3.07E+02 7.83E+04 3.05E+02 3.05E+02 NC
MERCURY (elemental) 7439-97-6 M 2.25E+04 2.25E+04 2.25E+04 NC
METHYLMERCURY 22967-92-6 V 1.02E+02 2.61E+04 1.02E+02 1.02E+02 NC
METHANOL 67-56-1 V 5.11E+05 1.31E+08 5.09E+05 5.09E+05 NC
METHIDATHION 950-37-8 SV 1.02E+03 1.55E+03 2.61E+05 6.14E+02 6.14E+02 NC
METHOXYCHLOR 72-43-5 SV 5.11E+03 7.74E+03 1.31E+06 3.07E+03 3.07E+03 NC
METHYL ACETATE 79-20-9 V 1.02E+06 2.61E+08 1.02E+06 1.02E+06 NC
METHYL ACRYLATE 96-33-3 V 3.07E+04 7.83E+06 3.05E+04 3.05E+04 NC
2-METHYLANILINE 95-53-4 SV 1.19E+01 1.81E+01 6.09E+03 7.17E+00 7.17E+00 C
4-(2-METHYL-4-CHLOROPHENOXY) BUTYRIC ACID 94-81-5 SV 1.02E+04 1.55E+04 2.61E+06 6.14E+03 6.14E+03 NC
2-METHYL-4-CHLOROPHENOXYACETIC ACID (MCPA) 94-74-6 SV 5.11E+02 7.74E+02 1.31E+05 3.07E+02 3.07E+02 NC
2-(2-METHYL-4-CHLOROPHENOXY)PROPIONIC ACID (MCPP) 93-65-2 SV 1.02E+03 1.55E+03 2.61E+05 6.14E+02 6.14E+02 NC
METHYLCYCLOHEXANE 108-87-2 V 2.25E+08 2.25E+08 2.25E+08 NC
METHYLENE BROMIDE 74-95-3 V 1.02E+04 2.61E+06 1.02E+04 1.02E+04 NC
METHYLENE CHLORIDE 75-09-2 V 3.82E+02 8.86E+05 3.81E+02 6.13E+04 7.83E+07 6.13E+04 3.81E+02 C
4,4'-METHYLENE BIS(2-CHLOROANILINE) 101-14-4 SV 2.20E+01 3.34E+01 1.12E+04 1.32E+01 7.15E+02 1.08E+03 1.83E+05 4.30E+02 1.32E+01 C
4,4'-METHYLENE BIS(N,N'-DIMETHYL)ANILINE 101-61-1 SV 6.22E+01 9.43E+01 3.18E+04 3.74E+01 3.74E+01 C
4,4'-METHYLENEDIPHENYL ISOCYANATE 101-68-8 SV 4.44E+04 4.44E+04 4.44E+04 NC
METHYL ETHYL KETONE (2-BUTANONE) 78-93-3 V 6.13E+05 3.66E+08 6.12E+05 6.12E+05 NC
METHYL ISOBUTYL KETONE (4-METHYL-2-PENTANONE) 108-10-1 V 2.25E+08 2.25E+08 2.25E+08 NC
METHYL METHACRYLATE 80-62-6 V 1.43E+06 5.22E+07 1.39E+06 1.39E+06 NC
METHYL PARATHION 298-00-0 SV 2.56E+02 3.87E+02 6.53E+04 1.54E+02 1.54E+02 NC
2-METHYLPHENOL 95-48-7 SV 5.11E+04 7.74E+04 1.31E+07 3.07E+04 3.07E+04 NC
3-METHYLPHENOL 108-39-4 SV 5.11E+04 7.74E+04 1.31E+07 3.07E+04 3.07E+04 NC
4-METHYLPHENOL 106-44-5 SV 5.11E+03 7.74E+03 1.31E+06 3.07E+03 3.07E+03 NC
METHYLSTYRENE MIX 25013-15-4 V 6.13E+03 2.61E+06 6.12E+03 6.12E+03 NC
ALPHA-METHYLSTYRENE 98-83-9 V 7.15E+04 1.83E+07 7.13E+04 7.13E+04 NC
METHYL TERT-BUTYL ETHER 1634-04-4 V 7.15E+02 3.66E+05 7.14E+02 2.24E+08 2.24E+08 7.14E+02 C
METOLACHLOR (DUAL) 51218-45-2 SV 1.53E+05 2.32E+05 3.92E+07 9.21E+04 9.21E+04 NC
MIREX 2385-85-5 SV 2.04E+02 3.10E+02 5.22E+04 1.23E+02 1.23E+02 NC
MOLYBDENUM 7439-98-7 M 5.11E+03 1.31E+06 5.09E+03 5.09E+03 NC
MONOCHLORAMINE 10599-90-3 SV 1.02E+05 1.55E+05 2.61E+07 6.14E+04 6.14E+04 NC
NALED 300-76-5 SV 2.04E+03 3.10E+03 5.22E+05 1.23E+03 1.23E+03 NC
NICKEL REFINERY DUST NA M 1.74E+03 1.74E+03 1.74E+03 C
NICKEL 7440-02-0 M 2.04E+04 5.22E+06 2.04E+04 2.04E+04 NC
NITRATE 14797-55-8 M 1.64E+06 4.18E+08 1.63E+06 1.63E+06 NC
NITRITE 14797-65-0 M 1.02E+05 2.61E+07 1.02E+05 1.02E+05 NC
2-NITROANILINE 88-74-4 SV 3.07E+03 4.65E+03 7.83E+03 1.49E+03 1.49E+03 NC
3-NITROANILINE 99-09-2 SV 1.43E+02 2.17E+02 7.31E+04 8.61E+01 3.07E+02 4.65E+02 7.83E+04 1.84E+02 8.61E+01 C
4-NITROANILINE 100-01-6 SV 1.43E+02 2.17E+02 7.31E+04 8.61E+01 3.07E+03 4.65E+03 2.61E+05 1.83E+03 8.61E+01 C
NITROBENZENE 98-95-3 V 5.11E+02 1.57E+05 5.09E+02 5.09E+02 NC
NITROGLYCERIN 55-63-0 SV 2.04E+02 3.10E+02 1.04E+05 1.23E+02 1.23E+02 C
NITROGUANIDINE 556-88-7 SV 1.02E+05 1.55E+05 2.61E+07 6.14E+04 6.14E+04 NC
2-NITROPROPANE 79-46-9 V 1.56E+02 1.56E+02 1.49E+06 1.49E+06 1.56E+02 C
N-NITROSO-DI-N-BUTYLAMINE 924-16-3 V 5.30E-01 2.61E+02 5.29E-01 5.29E-01 C
N-NITROSODIETHANOLAMINE 1116-54-7 SV 1.02E+00 1.55E+00 5.22E+02 6.15E-01 6.15E-01 C
N-NITROSODIETHYLAMINE 55-18-5 SV 1.91E-02 2.89E-02 9.75E+00 1.15E-02 1.15E-02 C
N-NITROSODIMETHYLAMINE 62-75-9 SV 5.61E-02 8.50E-02 2.87E+01 3.38E-02 8.18E+00 1.24E+01 2.09E+03 4.91E+00 3.38E-02 C
N-NITROSODIPHENYLAMINE 86-30-6 SV 5.84E+02 8.85E+02 2.98E+05 3.51E+02 2.04E+04 3.10E+04 5.22E+06 1.23E+04 3.51E+02 C
N-NITROSODIPROPYLAMINE 621-64-7 SV 4.09E-01 6.19E-01 2.09E+02 2.46E-01 2.46E-01 C
JMS/E082005001SLC PAGE 5 OF 8
Appendix C Risk-based Soil Concentrations for the Industrial Worker
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Chemical CAS No. Group Oral Dermal Inhalation Combined Oral Dermal Inhalation Combined Final Basis
Carcinogenic Risk-basedConcentration (mg/Kg)Non-carcinogenic Risk-basedConcentration (mg/Kg)
N-NITROSO-N-METHYLETHYLAMINE 10595-95-6 SV 1.30E-01 1.97E-01 6.65E+01 7.83E-02 7.83E-02 C
N-NITROSOPYRROLIDINE 930-55-2 SV 1.36E+00 2.06E+00 6.96E+02 8.20E-01 8.20E-01 C
M-NITROTOLUENE 99-08-1 V 2.04E+04 5.22E+06 2.04E+04 2.04E+04 NC
O-NITROTOLUENE 88-72-2 V 1.24E+01 6.36E+03 1.24E+01 1.02E+04 2.61E+06 1.02E+04 1.24E+01 C
P-NITROTOLUENE 99-99-0 V 1.68E+02 8.60E+04 1.68E+02 1.02E+04 2.61E+06 1.02E+04 1.68E+02 C
NUSTAR 85509-19-9 SV 7.15E+02 1.08E+03 1.83E+05 4.30E+02 4.30E+02 NC
ORYZALIN 19044-88-3 SV 5.11E+04 7.74E+04 1.31E+07 3.07E+04 3.07E+04 NC
OXADIAZON 19666-30-9 SV 5.11E+03 7.74E+03 1.31E+06 3.07E+03 3.07E+03 NC
OXAMYL 23135-22-0 SV 2.56E+04 3.87E+04 6.53E+06 1.54E+04 1.54E+04 NC
OXYFLUORFEN 42874-03-3 SV 3.07E+03 4.65E+03 7.83E+05 1.84E+03 1.84E+03 NC
PARAQUAT DICHLORIDE 1910-42-5 SV 4.60E+03 6.97E+03 1.18E+06 2.76E+03 2.76E+03 NC
PARATHION 56-38-2 SV 6.13E+03 9.29E+03 1.57E+06 3.69E+03 3.69E+03 NC
PENTACHLOROBENZENE 608-93-5 SV 8.18E+02 1.24E+03 2.09E+05 4.91E+02 4.91E+02 NC
PENTACHLORONITROBENZENE 82-68-8 SV 1.10E+01 1.67E+01 5.62E+03 6.62E+00 3.07E+03 4.65E+03 7.83E+05 1.84E+03 6.62E+00 C
PENTACHLOROPHENOL 87-86-5 SV 2.38E+01 1.45E+01 1.22E+04 8.99E+00 3.07E+04 1.86E+04 7.83E+06 1.16E+04 8.99E+00 C
Pentaerythritoltetranitrate 78-11-5 SV 2.60E+01 3.94E+01 1.33E+04 1.57E+01 3.07E+03 4.65E+03 7.83E+05 1.84E+03 1.57E+01 C
PERCHLORATE 7601-90-3 M 7.15E+02 1.83E+05 7.13E+02 7.13E+02 NC
PERMETHRIN 52645-53-1 SV 5.11E+04 7.74E+04 1.31E+07 3.07E+04 3.07E+04 NC
PHENOL 108-95-2 SV 3.07E+05 4.65E+05 7.83E+07 1.84E+05 1.84E+05 NC
M-PHENYLENEDIAMINE 108-45-2 SV 6.13E+03 9.29E+03 1.57E+06 3.69E+03 3.69E+03 NC
O-PHENYLENEDIAMINE 95-54-5 SV 6.09E+01 9.23E+01 3.11E+04 3.66E+01 3.66E+01 C
P-PHENYLENEDIAMINE 106-50-3 SV 1.94E+05 2.94E+05 4.96E+07 1.17E+05 1.17E+05 NC
PHOSPHINE 7803-51-2 SV 3.07E+02 4.65E+02 2.25E+04 1.83E+02 1.83E+02 NC
PHOSPHORIC ACID 7664-38-2 M 7.57E+05 7.57E+05 7.57E+05 NC
PHOSPHORUS (WHITE)7723-14-0 M 2.04E+01 5.22E+03 2.04E+01 2.04E+01 NC
PHTHALIC ANHYDRIDE 85-44-9 SV 2.04E+06 3.10E+06 8.96E+06 1.08E+06 1.08E+06 NC
POLYBROMINATED BIPHENYLS NA SV 3.22E-01 4.87E-01 1.64E+02 1.93E-01 7.15E+00 1.08E+01 1.83E+03 4.30E+00 1.93E-01 C
POLYCHLORINATED BIPHENYLS 1336-36-3 SV 1.43E+00 1.55E+00 7.31E+02 7.43E-01 7.43E-01 C
AROCLOR-1016 12674-11-2 SV 4.09E+01 4.42E+01 2.09E+04 2.12E+01 7.15E+01 7.74E+01 1.83E+04 3.71E+01 2.12E+01 C
AROCLOR-1221 11104-28-2 SV 1.43E+00 1.55E+00 7.31E+02 7.43E-01 7.43E-01 C
AROCLOR-1232 11141-16-5 SV 1.43E+00 1.55E+00 7.31E+02 7.43E-01 7.43E-01 C
AROCLOR-1242 53469-21-9 SV 1.43E+00 1.55E+00 7.31E+02 7.43E-01 7.43E-01 C
AROCLOR-1248 12672-29-6 SV 1.43E+00 1.55E+00 7.31E+02 7.43E-01 7.43E-01 C
AROCLOR-1254 11097-69-1 SV 1.43E+00 1.55E+00 7.31E+02 7.43E-01 2.04E+01 2.21E+01 5.22E+03 1.06E+01 7.43E-01 C
AROCLOR-1260 11096-82-5 SV 1.43E+00 1.55E+00 7.31E+02 7.43E-01 7.43E-01 C
POLYCHLORINATED TERPHENYLS 61788-33-8 SV 6.36E-01 9.64E-01 3.25E+02 3.83E-01 3.83E-01 C
POLYNUCLEAR AROMATIC HYDROCARBONS:NA SV
ACENAPHTHENE 83-32-9 V 6.13E+04 7.15E+04 1.57E+07 3.29E+04 3.29E+04 NC
ANTHRACENE 120-12-7 V 3.07E+05 3.57E+05 7.83E+07 1.65E+05 1.65E+05 NC
BENZ[A]ANTHRACENE 56-55-3 SV 3.92E+00 4.57E+00 2.00E+03 2.11E+00 2.11E+00 C
BENZO[B]FLUORANTHENE 205-99-2 SV 3.92E+00 4.57E+00 2.00E+03 2.11E+00 2.11E+00 C
BENZO[K]FLUORANTHENE 207-08-9 SV 3.92E+01 4.57E+01 2.00E+04 2.11E+01 2.11E+01 C
BENZO[A]PYRENE 50-32-8 SV 3.92E-01 4.57E-01 4.72E+02 2.11E-01 2.11E-01 C
CARBAZOLE 86-74-8 SV 1.43E+02 1.67E+02 7.31E+04 7.69E+01 7.69E+01 C
CHRYSENE 218-01-9 SV 3.92E+02 4.57E+02 2.00E+05 2.11E+02 2.11E+02 C
DIBENZ[A,H]ANTHRACENE 53-70-3 SV 3.92E-01 4.57E-01 2.00E+02 2.11E-01 2.11E-01 C
FLUORANTHENE 206-44-0 SV 4.09E+04 4.76E+04 1.04E+07 2.20E+04 2.20E+04 NC
FLUORENE 86-73-7 V 4.09E+04 4.76E+04 1.04E+07 2.20E+04 2.20E+04 NC
INDENO[1,2,3-C,D]PYRENE 193-39-5 SV 3.92E+00 4.57E+00 2.00E+03 2.11E+00 2.11E+00 C
2-METHYLNAPHTHALENE 91-57-6 V 4.09E+03 4.76E+03 1.04E+06 2.20E+03 2.20E+03 NC
NAPHTHALENE 91-20-3 V 2.04E+04 2.38E+04 2.35E+05 1.05E+04 1.05E+04 NC
PYRENE 129-00-0 V 3.07E+04 3.57E+04 7.83E+06 1.65E+04 1.65E+04 NC
PROMETON 1610-18-0 SV 1.53E+04 2.32E+04 3.92E+06 9.21E+03 9.21E+03 NC
PROMETRYN 7287-19-6 SV 4.09E+03 6.19E+03 1.04E+06 2.46E+03 2.46E+03 NC
JMS/E082005001SLC PAGE 6 OF 8
Appendix C Risk-based Soil Concentrations for the Industrial Worker
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Chemical CAS No. Group Oral Dermal Inhalation Combined Oral Dermal Inhalation Combined Final Basis
Carcinogenic Risk-basedConcentration (mg/Kg)Non-carcinogenic Risk-basedConcentration (mg/Kg)
PROPACHLOR 1918-16-7 SV 1.33E+04 2.01E+04 3.39E+06 7.98E+03 7.98E+03 NC
PROPARGITE 2312-35-8 SV 2.04E+04 3.10E+04 5.22E+06 1.23E+04 1.23E+04 NC
PROPYLENE GLYCOL 57-55-6 SV 5.11E+05 7.74E+05 2.25E+05 1.30E+05 1.30E+05 NC
PROPYLENE GLYCOL, MONOETHYL ETHER 52125-53-8 SV 7.15E+05 1.08E+06 1.83E+08 4.30E+05 4.30E+05 NC
PROPYLENE GLYCOL, MONOMETHYL ETHER 107-98-2 SV 7.15E+05 1.08E+06 1.49E+08 4.30E+05 4.30E+05 NC
PURSUIT 81335-77-5 SV 2.56E+05 3.87E+05 6.53E+07 1.54E+05 1.54E+05 NC
PYRIDINE 110-86-1 SV 1.02E+03 1.55E+03 2.61E+05 6.14E+02 6.14E+02 NC
QUINOLINE 91-22-5 SV 9.54E-01 1.45E+00 4.87E+02 5.74E-01 5.74E-01 C
RDX 121-82-4 SV 2.60E+01 3.94E+01 1.33E+04 1.57E+01 3.07E+03 4.65E+03 7.83E+05 1.84E+03 1.57E+01 C
RESMETHRIN 10453-86-8 SV 3.07E+04 4.65E+04 7.83E+06 1.84E+04 1.84E+04 NC
ROTENONE 83-79-4 SV 4.09E+03 6.19E+03 1.04E+06 2.46E+03 2.46E+03 NC
SELENIUM 7782-49-2 M 5.11E+03 1.31E+06 5.09E+03 5.09E+03 NC
SILVER 7440-22-4 M 5.11E+03 1.31E+06 5.09E+03 5.09E+03 NC
SIMAZINE 122-34-9 SV 2.38E+01 3.61E+01 1.22E+04 1.43E+01 5.11E+03 7.74E+03 1.31E+06 3.07E+03 1.43E+01 C
SODIUM DIETHYLDITHIOCARBAMATE 148-18-5 SV 1.06E+01 1.61E+01 5.42E+03 6.38E+00 3.07E+04 4.65E+04 7.83E+06 1.84E+04 6.38E+00 C
STRONTIUM, STABLE 7440-24-6 M 6.13E+05 1.57E+08 6.11E+05 6.11E+05 NC
STRYCHNINE 57-24-9 SV 3.07E+02 4.65E+02 7.83E+04 1.84E+02 1.84E+02 NC
STYRENE 100-42-5 V 2.04E+05 7.47E+07 2.04E+05 2.04E+05 NC
2,3,7,8-TETRACHLORODIBENZODIOXIN 1746-01-6 SV 1.91E-05 9.64E-05 9.75E-03 1.59E-05 1.59E-05 C
1,2,4,5-TETRACHLOROBENZENE 95-94-3 SV 3.07E+02 4.65E+02 7.83E+04 1.84E+02 1.84E+02 NC
1,1,1,2-TETRACHLOROETHANE 630-20-6 V 1.10E+02 5.62E+04 1.10E+02 3.07E+04 7.83E+06 3.05E+04 1.10E+02 C
1,1,2,2-TETRACHLOROETHANE 79-34-5 V 1.43E+01 7.31E+03 1.43E+01 6.13E+04 1.57E+07 6.11E+04 1.43E+01 C
TETRACHLOROETHENE 127-18-4 V 5.30E+00 7.31E+04 5.30E+00 1.02E+04 3.66E+07 1.02E+04 5.30E+00 C
2,3,4,6-TETRACHLOROPHENOL 58-90-2 SV 3.07E+04 4.65E+04 7.83E+06 1.84E+04 1.84E+04 NC
P,A,A,A-TETRACHLOROTOLUENE 5216-25-1 SV 1.43E-01 2.17E-01 7.31E+01 8.61E-02 8.61E-02 C
1,1,1,2-TETRAFLUOROETHANE 811-97-2 V 5.98E+09 5.98E+09 5.98E+09 NC
TETRAHYDROFURAN 109-99-9 SV 3.77E+02 5.70E+02 2.15E+05 2.27E+02 2.04E+05 3.10E+05 2.25E+07 1.22E+05 2.27E+02 C
TETRYL 479-45-8 SV 4.09E+03 6.19E+03 1.04E+06 2.46E+03 2.46E+03 NC
THALLIUM 7440-28-0 M 7.15E+01 1.83E+04 7.13E+01 7.13E+01 NC
THALLIUM ACETATE 563-68-8 M 9.20E+01 2.35E+04 9.16E+01 9.16E+01 NC
THALLIUM CARBONATE 6533-73-9 M 8.18E+01 2.09E+04 8.14E+01 8.14E+01 NC
THALLIUM CHLORIDE 7791-12-0 M 8.18E+01 2.09E+04 8.14E+01 8.14E+01 NC
THALLIUM NITRATE 10102-45-1 M 9.20E+01 2.35E+04 9.16E+01 9.16E+01 NC
THALLIUM SULFATE (2:1) 7446-18-6 M 8.18E+01 2.09E+04 8.14E+01 8.14E+01 NC
THIOBENCARB 28249-77-6 SV 1.02E+04 1.55E+04 2.61E+06 6.14E+03 6.14E+03 NC
TIN 7440-31-5 M 6.13E+05 1.57E+08 6.11E+05 6.11E+05 NC
TITANIUM 7440-32-6 M 4.09E+06 2.25E+06 1.45E+06 1.45E+06 NC
TITANIUM DIOXIDE 13463-67-7 M 4.09E+06 2.25E+06 1.45E+06 1.45E+06 NC
TOLUENE 108-88-3 V 2.04E+05 2.98E+07 2.03E+05 2.03E+05 NC
TOLUENE-2,4-DIAMINE 95-80-7 SV 8.94E-01 1.35E+00 4.57E+02 5.38E-01 5.38E-01 C
TOLUENE-2,5-DIAMINE 95-70-5 SV 6.13E+05 9.29E+05 1.57E+08 3.69E+05 3.69E+05 NC
TOLUENE-2,6-DIAMINE 823-40-5 SV 2.04E+05 3.10E+05 5.22E+07 1.23E+05 1.23E+05 NC
P-TOLUIDINE 106-49-0 SV 1.51E+01 2.28E+01 7.70E+03 9.06E+00 9.06E+00 C
TOXAPHENE 8001-35-2 SV 2.60E+00 3.94E+00 1.33E+03 1.57E+00 1.57E+00 C
1,2,4-TRIBROMOBENZENE 615-54-3 SV 5.11E+03 7.74E+03 1.31E+06 3.07E+03 3.07E+03 NC
TRIBUTYLTIN OXIDE 56-35-9 SV 3.07E+02 4.65E+02 7.83E+04 1.84E+02 1.84E+02 NC
2,4,6-TRICHLOROANILINE 634-93-5 SV 8.42E+01 1.28E+02 4.30E+04 5.06E+01 5.06E+01 C
1,2,4-TRICHLOROBENZENE 120-82-1 V 1.02E+04 2.61E+05 9.84E+03 9.84E+03 NC
1,1,1-TRICHLOROETHANE 71-55-6 V 2.86E+05 1.65E+08 2.86E+05 2.86E+05 NC
1,1,2-TRICHLOROETHANE 79-00-5 V 5.02E+01 2.61E+04 5.01E+01 4.09E+03 1.04E+06 4.07E+03 5.01E+01 C
TRICHLOROETHENE 79-01-6 V 7.15E+00 3.66E+03 7.14E+00 3.07E+02 2.61E+06 3.07E+02 7.14E+00 C
TRICHLOROFLUOROMETHANE 75-69-4 V 3.07E+05 5.22E+07 3.05E+05 3.05E+05 NC
2,4,5-TRICHLOROPHENOL 95-95-4 SV 1.02E+05 1.55E+05 2.61E+07 6.14E+04 6.14E+04 NC
2,4,6-TRICHLOROPHENOL 88-06-2 SV 2.60E+02 3.94E+02 1.46E+05 1.57E+02 1.57E+02 C
JMS/E082005001SLC PAGE 7 OF 8
Appendix C Risk-based Soil Concentrations for the Industrial Worker
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Chemical CAS No. Group Oral Dermal Inhalation Combined Oral Dermal Inhalation Combined Final Basis
Carcinogenic Risk-basedConcentration (mg/Kg)Non-carcinogenic Risk-basedConcentration (mg/Kg)
2,4,5-T 93-76-5 SV 1.02E+04 1.55E+04 2.61E+06 6.14E+03 6.14E+03 NC
2-(2,4,5-TRICHLOROPHENOXY)PROPIONIC ACID 93-72-1 SV 8.18E+03 1.24E+04 2.09E+06 4.91E+03 4.91E+03 NC
1,1,2-TRICHLOROPROPANE 598-77-6 V 5.11E+03 1.31E+06 5.09E+03 5.09E+03 NC
1,2,3-TRICHLOROPROPANE 96-18-4 V 1.43E+00 7.31E+02 1.43E+00 6.13E+03 3.66E+05 6.03E+03 1.43E+00 C
1,2,3-TRICHLOROPROPENE 96-19-5 V 1.02E+04 7.83E+04 9.04E+03 9.04E+03 NC
1,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE 76-13-1 V 3.07E+07 2.25E+09 3.02E+07 3.02E+07 NC
1,2,4-TRIMETHYLBENZENE 95-63-6 V 5.11E+04 4.44E+05 4.58E+04 4.58E+04 NC
1,3,5-TRIMETHYLBENZENE 108-67-8 V 5.11E+04 4.44E+05 4.58E+04 4.58E+04 NC
1,3,5-TRINITROBENZENE 99-35-4 SV 3.07E+04 4.65E+04 7.83E+06 1.84E+04 1.84E+04 NC
2,4,6-TRINITROTOLUENE 118-96-7 SV 9.54E+01 1.45E+02 4.87E+04 5.74E+01 5.11E+02 7.74E+02 1.31E+05 3.07E+02 5.74E+01 C
URANIUM (SOLUBLE SALTS; from IRIS) 7440-61-1 M 3.07E+03 7.83E+05 3.05E+03 3.05E+03 NC
URANIUM (SOLUBLE SALTS; provisional) 7440-61-1 M 2.04E+02 5.22E+04 2.04E+02 2.04E+02 NC
VANADIUM 7440-62-2 M 1.02E+03 2.61E+05 1.02E+03 1.02E+03 NC
VINCLOZOLIN 50471-44-8 SV 2.56E+04 3.87E+04 6.53E+06 1.54E+04 1.54E+04 NC
VINYL ACETATE 108-05-4 V 1.02E+06 1.49E+07 9.56E+05 9.56E+05 NC
VINYL CHLORIDE: adult (see cover memos) 75-01-4 V 3.97E+00 9.75E+04 3.97E+00 3.07E+03 7.31E+06 3.06E+03 3.97E+00 C
WARFARIN 81-81-2 SV 3.07E+02 4.65E+02 7.83E+04 1.84E+02 1.84E+02 NC
O-XYLENE 95-47-6 V 2.04E+05 7.83E+06 1.99E+05 1.99E+05 NC
M,P-XYLENES 1330-20-7 V 2.04E+05 7.83E+06 1.99E+05 1.99E+05 NC
XYLENES 1330-20-7 V 2.04E+05 7.83E+06 1.99E+05 1.99E+05 NC
ZINC 7440-66-6 M 3.07E+05 7.83E+07 3.05E+05 3.05E+05 NC
ZINEB 12122-67-7 SV 5.11E+04 7.74E+04 1.31E+07 3.07E+04 3.07E+04 NC
JMS/E082005001SLC PAGE 8 OF 8
APPENDIX D
Risk-Based Air Concentrations for the EOD Personnel
Appendix D
Risk-based Air Concentrations for the EOD Personnel
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
CarcinogenicRisk-BasedConcentration (mg/M3)
Non-carcinogenicRisk-BasedConcentration (mg/M3)Final Risk-BasedConcentration (mg/M3)
FinalRisk-BasedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
ACETALDEHYDE 75-07-0 V 2.15E+00 1.22E+01 2.15E+00 C
ACETOCHLOR 34256-82-1 SV 9.46E+01 9.46E+01 NC
ACETONE 67-64-1 V 4.26E+03 4.26E+03 NC
ACETONITRILE 75-05-8 V 8.04E+01 8.04E+01 NC
ACETOPHENONE 98-86-2 V 4.73E+02 4.73E+02 NC
ACROLEIN 107-02-8 V 2.70E-02 2.70E-02 NC
ACRYLAMIDE 79-06-1 SV 3.68E-03 9.46E-01 3.68E-03 C
ACRYLONITRILE 107-13-1 V 6.90E-02 2.70E+00 6.90E-02 C
ALACHLOR 15972-60-8 SV 2.07E-01 4.73E+01 2.07E-01 C
ALAR 1596-84-5 SV 7.10E+02 7.10E+02 NC
ALDICARB 116-06-3 SV 4.73E+00 4.73E+00 NC
ALDICARB SULFONE 1646-88-4 SV 4.73E+00 4.73E+00 NC
ALDRIN 309-00-2 SV 9.74E-04 1.42E-01 9.74E-04 C
ALLYL CHLORIDE 107-05-1 V 1.35E+00 1.35E+00 NC
ALUMINUM 7429-90-5 M 4.73E+00 4.73E+00 NC
AMINODINITROTOLUENES NA SV 9.46E+00 9.46E+00 NC
AMMONIA 7664-41-7 V 1.35E+02 1.35E+02 NC
ANILINE 62-53-3 SV 2.91E+00 1.37E+00 1.37E+00 NC
ANTIMONY 7440-36-0 M 1.89E+00 1.89E+00 NC
ANTIMONY TRIOXIDE 1309-64-4 M 2.70E-01 2.70E-01 NC
ARSENIC 7440-38-2 M 1.10E-03 1.42E+00 1.10E-03 C
ARSINE 7784-42-1 V 6.62E-02 6.62E-02 NC
ASSURE 76578-14-8 SV 4.26E+01 4.26E+01 NC
ATRAZINE 1912-24-9 SV 7.53E-02 1.66E+02 7.53E-02 C
BARIUM 7440-39-3 M 6.62E-01 6.62E-01 NC
BAYGON 114-26-1 SV 1.89E+01 1.89E+01 NC
BAYTHROID 68359-37-5 SV 1.18E+02 1.18E+02 NC
BENTAZON 25057-89-0 SV 1.42E+02 1.42E+02 NC
BENZALDEHYDE 100-52-7 SV 4.73E+02 4.73E+02 NC
BENZENE 71-43-2 V 6.13E-01 4.07E+01 6.13E-01 C
BENZENETHIOL 108-98-5 V 4.73E-02 4.73E-02 NC
BENZIDINE 92-87-5 SV 7.20E-05 1.42E+01 7.20E-05 C
BENZOIC ACID 65-85-0 SV 1.89E+04 1.89E+04 NC
BENZYL ALCOHOL 100-51-6 SV 1.42E+03 1.42E+03 NC
BENZYL CHLORIDE 100-44-7 V 9.74E-02 9.46E+00 9.74E-02 C
BERYLLIUM 7440-41-7 M 1.97E-03 2.70E-02 1.97E-03 C
BIPHENYL 92-52-4 V 2.37E+02 2.37E+02 NC
BIS(2-CHLOROETHYL)ETHER 111-44-4 V 1.51E-02 1.51E-02 C
BIS(2-CHLOROISOPROPYL)ETHER 108-60-1 V 4.73E-01 1.89E+02 4.73E-01 C
BIS(CHLOROMETHYL)ETHER 542-88-1 V 7.53E-05 7.53E-05 C
BIS(2-ETHYLHEXYL)PHTHALATE 117-81-7 SV 1.18E+00 9.46E+01 1.18E+00 C
BORON 7440-42-8 M 2.70E+01 2.70E+01 NC
BROMOBENZENE 108-86-1 V 1.42E+01 1.42E+01 NC
BROMODICHLOROMETHANE 75-27-4 V 2.67E-01 9.46E+01 2.67E-01 C
BROMOETHENE 593-60-2 V 1.51E-01 4.07E+00 1.51E-01 C
BROMOFORM 75-25-2 SV 4.25E+00 9.46E+01 4.25E+00 C
BROMOMETHANE 74-83-9 V 6.62E+00 6.62E+00 NC
BROMOPHOS 2104-96-3 SV 2.37E+01 2.37E+01 NC
1,3-BUTADIENE 106-99-0 V 1.66E-01 2.70E+00 1.66E-01 C
1-BUTANOL 71-36-3 SV 4.73E+02 4.73E+02 NC
BUTYLBENZYLPHTHALATE 85-68-7 SV 8.72E+00 9.46E+02 8.72E+00 C
CADMIUM-FOOD 7440-43-9 M 2.63E-03 2.70E-01 2.63E-03 C
CAPROLACTAM 105-60-2 SV 2.37E+03 2.37E+03 NC
CARBARYL 63-25-2 SV 4.73E+02 4.73E+02 NC
CARBON DISULFIDE 75-15-0 V 9.46E+02 9.46E+02 NC
CARBON TETRACHLORIDE 56-23-5 V 3.12E-01 2.37E+02 3.12E-01 C
CARBOSULFAN 55285-14-8 SV 4.73E+01 4.73E+01 NC
CHLORAL HYDRATE 302-17-0 SV 4.73E+02 4.73E+02 NC
CHLORANIL 118-75-2 SV 4.14E-02 4.14E-02 C
JMS/E082005001SLC PAGE 1 OF 7
Appendix D
Risk-based Air Concentrations for the EOD Personnel
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
CarcinogenicRisk-BasedConcentration (mg/M3)
Non-carcinogenicRisk-BasedConcentration (mg/M3)Final Risk-BasedConcentration (mg/M3)
FinalRisk-BasedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
CHLORDANE 57-74-9 SV 4.73E-02 9.46E-01 4.73E-02 C
CHLORINE 7782-50-5 V 2.70E-01 2.70E-01 NC
CHLORINE DIOXIDE 10049-04-4 V 2.70E-01 2.70E-01 NC
CHLOROACETIC ACID 79-11-8 SV 9.46E+00 9.46E+00 NC
4-CHLOROANILINE 106-47-8 SV 3.07E-01 1.89E+01 3.07E-01 C
CHLOROBENZENE 108-90-7 V 8.04E+01 8.04E+01 NC
2-CHLORO-1,3-BUTADIENE 126-99-8 V 9.46E+00 9.46E+00 NC
1-CHLORO-1,1-DIFLUOROETHANE 75-68-3 V 6.62E+04 6.62E+04 NC
CHLORODIFLUOROMETHANE 75-45-6 V 6.62E+04 6.62E+04 NC
CHLOROETHANE 75-00-3 V 5.71E+00 1.37E+04 5.71E+00 C
CHLOROFORM 67-66-3 V 2.04E-01 6.62E+01 2.04E-01 C
CHLOROMETHANE 74-87-3 V 1.23E+02 1.23E+02 NC
4-CHLORO-2-METHYLANILINE 95-69-2 SV 2.86E-02 2.86E-02 C
BETA-CHLORONAPHTHALENE 91-58-7 V 3.79E+02 3.79E+02 NC
O-CHLORONITROBENZENE 88-73-3 V 1.71E+00 9.46E-02 9.46E-02 NC
P-CHLORONITROBENZENE 100-00-5 V 2.47E+00 8.04E-01 8.04E-01 NC
2-CHLOROPHENOL 95-57-8 V 2.37E+01 2.37E+01 NC
2-CHLOROPROPANE 75-29-6 V 1.37E+02 1.37E+02 NC
O-CHLOROTOLUENE 95-49-8 V 9.46E+01 9.46E+01 NC
CHLORPYRIFOS 2921-88-2 SV 1.42E+01 1.42E+01 NC
CHLORPYRIFOS-METHYL 5598-13-0 SV 4.73E+01 4.73E+01 NC
CHROMIUM 7440-47-3 M 7.10E+03 7.10E+03 NC
CHROMIUM III 16065-83-1 M 7.10E+03 7.10E+03 NC
CHROMIUM VI 18540-29-9 M 4.04E-04 1.42E-01 4.04E-04 C
COBALT 7440-48-4 M 1.69E-03 2.70E-02 1.69E-03 C
COKE OVEN EMISSIONS (COAL TAR)8007-45-2 SV 7.53E-03 7.53E-03 C
COPPER 7440-50-8 M 1.89E+02 1.89E+02 NC
CUMENE 98-82-8 V 5.20E+02 5.20E+02 NC
CYANIDE (FREE)57-12-5 M 9.46E+01 9.46E+01 NC
CALCIUM CYANIDE 592-01-8 M 1.89E+02 1.89E+02 NC
COPPER CYANIDE 544-92-3 M 2.37E+01 2.37E+01 NC
CYANOGEN 460-19-5 V 1.89E+02 1.89E+02 NC
HYDROGEN CYANIDE 74-90-8 V 4.07E+00 4.07E+00 NC
POTASSIUM CYANIDE 151-50-8 M 2.37E+02 2.37E+02 NC
POTASSIUM SILVER CYANIDE 506-61-6 M 9.46E+02 9.46E+02 NC
SILVER CYANIDE 506-64-9 M 4.73E+02 4.73E+02 NC
SODIUM CYANIDE 143-33-9 M 1.89E+02 1.89E+02 NC
THIOCYANATE NA M 4.73E-01 4.73E-01 NC
ZINC CYANIDE 557-21-1 M 2.37E+02 2.37E+02 NC
CYCLOHEXANE 110-82-7 V 8.04E+03 8.04E+03 NC
CYCLOHEXANONE 108-94-1 SV 2.37E+04 2.37E+04 NC
CYHALOTHRIN/KARATE 68085-85-8 SV 2.37E+01 2.37E+01 NC
CYPERMETHRIN 52315-07-8 SV 4.73E+01 4.73E+01 NC
DACTHAL 1861-32-1 SV 4.73E+01 4.73E+01 NC
DALAPON 75-99-0 SV 1.42E+02 1.42E+02 NC
DDD 72-54-8 SV 6.90E-02 9.46E+00 6.90E-02 C
DDE 72-55-9 SV 4.87E-02 4.87E-02 C
DDT 50-29-3 SV 4.87E-02 2.37E+00 4.87E-02 C
DIAZINON 333-41-5 SV 4.26E+00 4.26E+00 NC
DIBENZOFURAN 132-64-9 V 9.46E+00 9.46E+00 NC
1,4-DIBROMOBENZENE 106-37-6 SV 4.73E+01 4.73E+01 NC
DIBROMOCHLOROMETHANE 124-48-1 V 1.97E-01 9.46E+01 1.97E-01 C
1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 V 6.90E+00 2.70E-01 2.70E-01 NC
1,2-DIBROMOETHANE 106-93-4 V 8.28E-03 1.23E+01 8.28E-03 C
DIBUTYLPHTHALATE 84-74-2 SV 4.73E+02 4.73E+02 NC
DICAMBA 1918-00-9 SV 1.42E+02 1.42E+02 NC
1,2-DICHLOROBENZENE 95-50-1 V 1.89E+02 1.89E+02 NC
1,3-DICHLOROBENZENE 541-73-1 V 1.42E+01 1.42E+01 NC
1,4-DICHLOROBENZENE 106-46-7 V 7.53E-01 1.08E+03 7.53E-01 C
JMS/E082005001SLC PAGE 2 OF 7
Appendix D
Risk-based Air Concentrations for the EOD Personnel
Attachment 10B- Thermal Treatment Unit Human Health Risk Assessment
CarcinogenicRisk-BasedConcentration (mg/M3)
Non-carcinogenicRisk-BasedConcentration (mg/M3)Final Risk-BasedConcentration (mg/M3)
FinalRisk-BasedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
3,3'-DICHLOROBENZIDINE 91-94-1 SV 3.68E-02 3.68E-02 C
DICHLORODIFLUOROMETHANE 75-71-8 V 2.37E+02 2.37E+02 NC
1,1-DICHLOROETHANE 75-34-3 V 6.62E+02 6.62E+02 NC
1,2-DICHLOROETHANE 107-06-2 V 1.82E-01 3.31E+03 1.82E-01 C
1,1-DICHLOROETHENE 75-35-4 V 2.84E+02 2.84E+02 NC
CIS-1,2-DICHLOROETHENE 156-59-2 V 4.73E+01 4.73E+01 NC
TRANS-1,2-DICHLOROETHENE 156-60-5 V 8.04E+01 8.04E+01 NC
TOTAL 1,2-DICHLOROETHENE 540-59-0 V 4.26E+01 4.26E+01 NC
2,4-DICHLOROPHENOL 120-83-2 SV 1.42E+01 1.42E+01 NC
2,4-D 94-75-7 SV 4.73E+01 4.73E+01 NC
4-(2,4-DICHLOROPHENOXY)BUTYRIC ACID 94-82-6 SV 3.79E+01 3.79E+01 NC
1,2-DICHLOROPROPANE 78-87-5 V 2.44E-01 5.39E+00 2.44E-01 C
1,3-DICHLOROPROPANE 142-28-9 V 9.46E+01 9.46E+01 NC
2,3-DICHLOROPROPANOL 616-23-9 SV 1.42E+01 1.42E+01 NC
1,3-DICHLOROPROPENE 542-75-6 V 1.66E+00 2.70E+01 1.66E+00 C
DICHLORVOS 62-73-7 SV 5.71E-02 6.77E-01 5.71E-02 C
DIELDRIN 60-57-1 SV 1.04E-03 2.37E-01 1.04E-03 C
DIESEL EMISSIONS NA SV 6.62E+00 6.62E+00 NC
DIETHYLPHTHALATE 84-66-2 SV 3.79E+03 3.79E+03 NC
DIETHYLENE GLYCOL, MONOBUTYL ETHER 112-34-5 SV 2.70E+01 2.70E+01 NC
DIETHYLENE GLYCOL, MONOETHYL ETHER 111-90-0 SV 4.07E+00 4.07E+00 NC
DI(2-ETHYLHEXYL)ADIPATE 103-23-1 SV 1.38E+01 2.84E+03 1.38E+01 C
DIETHYLSTILBESTROL 56-53-1 SV 3.52E-06 3.52E-06 C
DIFENZOQUAT (AVENGE) 43222-48-6 SV 3.79E+02 3.79E+02 NC
1,1-DIFLUOROETHANE 75-37-6 V 5.20E+04 5.20E+04 NC
DIISOPROPYL METHYLPHOSPHONATE (DIMP) 1445-75-6 SV 3.79E+02 3.79E+02 NC
3,3'-DIMETHOXYBENZIDINE 119-90-4 SV 1.18E+00 1.18E+00 C
N,N-DIMETHYLANILINE 121-69-7 SV 9.46E+00 9.46E+00 NC
3,3'-DIMETHYLBENZIDINE 119-93-7 SV 7.20E-03 7.20E-03 C
2,4-DIMETHYLPHENOL 105-67-9 SV 9.46E+01 9.46E+01 NC
2,6-DIMETHYLPHENOL 576-26-1 SV 2.84E+00 2.84E+00 NC
3,4-DIMETHYLPHENOL 95-65-8 SV 4.73E+00 4.73E+00 NC
DIMETHYLPHTHALATE 131-11-3 SV 4.73E+04 4.73E+04 NC
1,2-DINITROBENZENE 528-29-0 SV 4.73E-01 4.73E-01 NC
1,3-DINITROBENZENE 99-65-0 SV 4.73E-01 4.73E-01 NC
1,4-DINITROBENZENE 100-25-4 SV 4.73E-01 4.73E-01 NC
4,6-DINITRO-O-CYCLOHEXYL PHENOL 131-89-5 SV 9.46E+00 9.46E+00 NC
4,6-DINITRO-2-METHYLPHENOL 534-52-1 SV 4.73E-01 4.73E-01 NC
2,4-DINITROPHENOL 51-28-5 SV 9.46E+00 9.46E+00 NC
DINITROTOLUENE MIX NA SV 2.44E-02 2.44E-02 C
2,4-DINITROTOLUENE 121-14-2 SV 9.46E+00 9.46E+00 NC
2,6-DINITROTOLUENE 606-20-2 SV 4.73E+00 4.73E+00 NC
DINOSEB 88-85-7 SV 4.73E+00 4.73E+00 NC
DIOCTYLPHTHALATE 117-84-0 SV 1.89E+02 1.89E+02 NC
1,4-DIOXANE 123-91-1 SV 1.51E+00 1.51E+00 C
DIPHENYLAMINE 122-39-4 SV 1.18E+02 1.18E+02 NC
1,2-DIPHENYLHYDRAZINE 122-66-7 SV 2.07E-02 2.07E-02 C
DIQUAT 85-00-7 SV 1.04E+01 1.04E+01 NC
DISULFOTON 298-04-4 SV 1.89E-01 1.89E-01 NC
1,4-DITHIANE 505-29-3 SV 4.73E+01 4.73E+01 NC
DIURON 330-54-1 SV 9.46E+00 9.46E+00 NC
ENDOSULFAN 115-29-7 SV 2.84E+01 2.84E+01 NC
ENDRIN 72-20-8 SV 1.42E+00 1.42E+00 NC
EPICHLOROHYDRIN 106-89-8 V 3.94E+00 1.35E+00 1.35E+00 NC
ETHION 563-12-2 SV 2.37E+00 2.37E+00 NC
ETHYL ACETATE 141-78-6 V 4.26E+03 4.26E+03 NC
ETHYLBENZENE 100-41-4 V 1.37E+03 1.37E+03 NC
ETHYLENE DIAMINE 107-15-3 SV 4.26E+02 4.26E+02 NC
ETHYLENE GLYCOL 107-21-1 SV 9.46E+03 9.46E+03 NC
JMS/E082005001SLC PAGE 3 OF 7
Appendix D
Risk-based Air Concentrations for the EOD Personnel
Attachment 10B- Thermal Treatment Unit Human Health Risk Assessment
CarcinogenicRisk-BasedConcentration (mg/M3)
Non-carcinogenicRisk-BasedConcentration (mg/M3)Final Risk-BasedConcentration (mg/M3)
FinalRisk-BasedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
ETHYLENE GLYCOL, MONOBUTYL ETHER 111-76-2 SV 1.75E+04 1.75E+04 NC
ETHYLENE OXIDE 75-21-8 V 4.73E-02 4.73E-02 C
ETHYL ETHER 60-29-7 V 9.46E+02 9.46E+02 NC
FENAMIPHOS 22224-92-6 SV 1.18E+00 1.18E+00 NC
FLUOMETURON 2164-17-2 SV 6.15E+01 6.15E+01 NC
FLUORINE 7782-41-4 M 2.84E+02 2.84E+02 NC
FOMESAFEN 72178-02-0 SV 8.72E-02 8.72E-02 C
FONOFOS 944-22-9 SV 9.46E+00 9.46E+00 NC
FORMALDEHYDE 50-00-0 SV 3.68E-01 9.46E+02 3.68E-01 C
FURAN 110-00-9 V 4.73E+00 4.73E+00 NC
FURFURAL 98-01-1 SV 4.73E+01 4.73E+01 NC
GLYPHOSATE 1071-83-6 SV 4.73E+02 4.73E+02 NC
HEPTACHLOR 76-44-8 SV 3.68E-03 2.37E+00 3.68E-03 C
HEPTACHLOR EPOXIDE 1024-57-3 SV 1.82E-03 6.15E-02 1.82E-03 C
HEXABROMOBENZENE 87-82-1 SV 9.46E+00 9.46E+00 NC
HEXACHLOROBENZENE 118-74-1 SV 1.04E-02 3.79E+00 1.04E-02 C
HEXACHLOROBUTADIENE 87-68-3 SV 2.12E-01 9.46E-01 2.12E-01 C
ALPHA-HCH 319-84-6 SV 2.63E-03 2.63E-03 C
BETA-HCH 319-85-7 SV 9.20E-03 9.20E-03 C
GAMMA-HCH (LINDANE)58-89-9 SV 1.27E-02 1.42E+00 1.27E-02 C
TECHNICAL HCH 608-73-1 SV 9.20E-03 9.20E-03 C
HEXACHLOROCYCLOPENTADIENE 77-47-4 SV 2.70E-01 2.70E-01 NC
HEXACHLORODIBENZODIOXIN MIX 19408-74-3 SV 3.64E-06 3.64E-06 C
HEXACHLOROETHANE 67-72-1 SV 1.18E+00 4.73E+00 1.18E+00 C
HEXACHLOROPHENE 70-30-4 SV 1.42E+00 1.42E+00 NC
1,6-HEXAMETHYLENE DIISOCYANATE 822-06-0 SV 1.37E-02 1.37E-02 NC
HEXANE 110-54-3 V 2.70E+02 2.70E+02 NC
HMX 2691-41-0 SV 2.37E+02 2.37E+02 NC
HYDRAZINE 302-01-2 V 9.74E-04 9.74E-04 C
HYDROGEN CHLORIDE 7647-01-0 V 2.70E+01 2.70E+01 NC
HYDROGEN SULFIDE 7783-06-4 V 2.70E+00 2.70E+00 NC
HYDROQUINONE 123-31-9 SV 2.96E-01 1.89E+02 2.96E-01 C
IRON 7439-89-6 M 1.42E+03 1.42E+03 NC
ISOBUTANOL 78-83-1 V 1.42E+03 1.42E+03 NC
ISOPHORONE 78-59-1 SV 1.74E+01 9.46E+02 1.74E+01 C
TETRAETHYLLEAD 78-00-2 V 4.73E-04 4.73E-04 NC
KEPONE 143-50-0 SV 2.07E-03 9.46E-01 2.07E-03 C
LITHIUM 7439-93-2 M 9.46E+01 9.46E+01 NC
MALATHION 121-75-5 SV 9.46E+01 9.46E+01 NC
MALEIC ANHYDRIDE 108-31-6 SV 4.73E+02 4.73E+02 NC
MANGANESE-FOOD 7439-96-5 M 6.77E-02 6.77E-02 NC
MEPHOSFOLAN 950-10-7 SV 4.26E-01 4.26E-01 NC
MEPIQUAT CHLORIDE 24307-26-4 SV 1.42E+02 1.42E+02 NC
MERCURIC CHLORIDE 7487-94-7 M 1.42E+00 1.42E+00 NC
MERCURY (elemental)7439-97-6 M 4.07E-01 4.07E-01 NC
METHYLMERCURY 22967-92-6 V 4.73E-01 4.73E-01 NC
METHANOL 67-56-1 V 2.37E+03 2.37E+03 NC
METHIDATHION 950-37-8 SV 4.73E+00 4.73E+00 NC
METHOXYCHLOR 72-43-5 SV 2.37E+01 2.37E+01 NC
METHYL ACETATE 79-20-9 V 4.73E+03 4.73E+03 NC
METHYL ACRYLATE 96-33-3 V 1.42E+02 1.42E+02 NC
2-METHYLANILINE 95-53-4 SV 6.90E-02 6.90E-02 C
4-(2-METHYL-4-CHLOROPHENOXY) BUTYRIC ACID 94-81-5 SV 4.73E+01 4.73E+01 NC
2-METHYL-4-CHLOROPHENOXYACETIC ACID (MCPA)94-74-6 SV 2.37E+00 2.37E+00 NC
2-(2-METHYL-4-CHLOROPHENOXY)PROPIONIC ACID (MCPP)93-65-2 SV 4.73E+00 4.73E+00 NC
METHYLCYCLOHEXANE 108-87-2 V 4.07E+03 4.07E+03 NC
METHYLENE BROMIDE 74-95-3 V 4.73E+01 4.73E+01 NC
METHYLENE CHLORIDE 75-09-2 V 1.00E+01 1.42E+03 1.00E+01 C
4,4'-METHYLENE BIS(2-CHLOROANILINE)101-14-4 SV 1.27E-01 3.31E+00 1.27E-01 C
JMS/E082005001SLC PAGE 4 OF 7
Appendix D
Risk-based Air Concentrations for the EOD Personnel
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
CarcinogenicRisk-BasedConcentration (mg/M3)
Non-carcinogenicRisk-BasedConcentration (mg/M3)Final Risk-BasedConcentration (mg/M3)
FinalRisk-BasedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
4,4'-METHYLENE BIS(N,N'-DIMETHYL)ANILINE 101-61-1 SV 3.60E-01 3.60E-01 C
4,4'-METHYLENEDIPHENYL ISOCYANATE 101-68-8 SV 8.04E-01 8.04E-01 NC
METHYL ETHYL KETONE (2-BUTANONE)78-93-3 V 6.62E+03 6.62E+03 NC
METHYL ISOBUTYL KETONE (4-METHYL-2-PENTANONE)108-10-1 V 4.07E+03 4.07E+03 NC
METHYL METHACRYLATE 80-62-6 V 9.46E+02 9.46E+02 NC
METHYL PARATHION 298-00-0 SV 1.18E+00 1.18E+00 NC
2-METHYLPHENOL 95-48-7 SV 2.37E+02 2.37E+02 NC
3-METHYLPHENOL 108-39-4 SV 2.37E+02 2.37E+02 NC
4-METHYLPHENOL 106-44-5 SV 2.37E+01 2.37E+01 NC
METHYLSTYRENE MIX 25013-15-4 V 4.73E+01 4.73E+01 NC
ALPHA-METHYLSTYRENE 98-83-9 V 3.31E+02 3.31E+02 NC
METHYL TERT-BUTYL ETHER 1634-04-4 V 4.14E+00 4.05E+03 4.14E+00 C
METOLACHLOR (DUAL)51218-45-2 SV 7.10E+02 7.10E+02 NC
MIREX 2385-85-5 SV 9.46E-01 9.46E-01 NC
MOLYBDENUM 7439-98-7 M 2.37E+01 2.37E+01 NC
MONOCHLORAMINE 10599-90-3 SV 4.73E+02 4.73E+02 NC
NALED 300-76-5 SV 9.46E+00 9.46E+00 NC
NICKEL REFINERY DUST NA M 1.97E-02 1.97E-02 C
NICKEL 7440-02-0 M 9.46E+01 9.46E+01 NC
NITRATE 14797-55-8 M 7.57E+03 7.57E+03 NC
NITRITE 14797-65-0 M 4.73E+02 4.73E+02 NC
2-NITROANILINE 88-74-4 SV 1.42E-01 1.42E-01 NC
3-NITROANILINE 99-09-2 SV 8.28E-01 1.42E+00 8.28E-01 C
4-NITROANILINE 100-01-6 SV 8.28E-01 4.73E+00 8.28E-01 C
NITROBENZENE 98-95-3 V 2.84E+00 2.84E+00 NC
NITROGLYCERIN 55-63-0 SV 1.18E+00 1.18E+00 C
NITROGUANIDINE 556-88-7 SV 4.73E+02 4.73E+02 NC
2-NITROPROPANE 79-46-9 V 1.76E-03 2.70E+01 1.76E-03 C
N-NITROSO-DI-N-BUTYLAMINE 924-16-3 V 2.96E-03 2.96E-03 C
N-NITROSODIETHANOLAMINE 1116-54-7 SV 5.91E-03 5.91E-03 C
N-NITROSODIETHYLAMINE 55-18-5 SV 1.10E-04 1.10E-04 C
N-NITROSODIMETHYLAMINE 62-75-9 SV 3.25E-04 3.79E-02 3.25E-04 C
N-NITROSODIPHENYLAMINE 86-30-6 SV 3.38E+00 9.46E+01 3.38E+00 C
N-NITROSODIPROPYLAMINE 621-64-7 SV 2.37E-03 2.37E-03 C
N-NITROSO-N-METHYLETHYLAMINE 10595-95-6 SV 7.53E-04 7.53E-04 C
N-NITROSOPYRROLIDINE 930-55-2 SV 7.89E-03 7.89E-03 C
M-NITROTOLUENE 99-08-1 V 9.46E+01 9.46E+01 NC
O-NITROTOLUENE 88-72-2 V 7.20E-02 4.73E+01 7.20E-02 C
P-NITROTOLUENE 99-99-0 V 9.74E-01 4.73E+01 9.74E-01 C
NUSTAR 85509-19-9 SV 3.31E+00 3.31E+00 NC
ORYZALIN 19044-88-3 SV 2.37E+02 2.37E+02 NC
OXADIAZON 19666-30-9 SV 2.37E+01 2.37E+01 NC
OXAMYL 23135-22-0 SV 1.18E+02 1.18E+02 NC
OXYFLUORFEN 42874-03-3 SV 1.42E+01 1.42E+01 NC
PARAQUAT DICHLORIDE 1910-42-5 SV 2.13E+01 2.13E+01 NC
PARATHION 56-38-2 SV 2.84E+01 2.84E+01 NC
PENTACHLOROBENZENE 608-93-5 SV 3.79E+00 3.79E+00 NC
PENTACHLORONITROBENZENE 82-68-8 SV 6.37E-02 1.42E+01 6.37E-02 C
PENTACHLOROPHENOL 87-86-5 SV 1.38E-01 1.42E+02 1.38E-01 C
Pentaerythritoltetranitrate 78-11-5 SV 1.51E-01 1.42E+01 1.51E-01 C
PERCHLORATE 7601-90-3 M 3.31E+00 3.31E+00 NC
PERMETHRIN 52645-53-1 SV 2.37E+02 2.37E+02 NC
PHENOL 108-95-2 SV 1.42E+03 1.42E+03 NC
M-PHENYLENEDIAMINE 108-45-2 SV 2.84E+01 2.84E+01 NC
O-PHENYLENEDIAMINE 95-54-5 SV 3.52E-01 3.52E-01 C
P-PHENYLENEDIAMINE 106-50-3 SV 8.99E+02 8.99E+02 NC
PHOSPHINE 7803-51-2 SV 4.07E-01 4.07E-01 NC
PHOSPHORIC ACID 7664-38-2 M 1.37E+01 1.37E+01 NC
PHOSPHORUS (WHITE)7723-14-0 M 9.46E-02 9.46E-02 NC
JMS/E082005001SLC PAGE 5 OF 7
Appendix D
Risk-based Air Concentrations for the EOD Personnel
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
CarcinogenicRisk-BasedConcentration (mg/M3)
Non-carcinogenicRisk-BasedConcentration (mg/M3)Final Risk-BasedConcentration (mg/M3)
FinalRisk-BasedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
PHTHALIC ANHYDRIDE 85-44-9 SV 1.62E+02 1.62E+02 NC
POLYBROMINATED BIPHENYLS NA SV 1.86E-03 3.31E-02 1.86E-03 C
POLYCHLORINATED BIPHENYLS 1336-36-3 SV 8.28E-03 8.28E-03 C
AROCLOR-1016 12674-11-2 SV 2.37E-01 3.31E-01 2.37E-01 C
AROCLOR-1221 11104-28-2 SV 8.28E-03 8.28E-03 C
AROCLOR-1232 11141-16-5 SV 8.28E-03 8.28E-03 C
AROCLOR-1242 53469-21-9 SV 8.28E-03 8.28E-03 C
AROCLOR-1248 12672-29-6 SV 8.28E-03 8.28E-03 C
AROCLOR-1254 11097-69-1 SV 8.28E-03 9.46E-02 8.28E-03 C
AROCLOR-1260 11096-82-5 SV 8.28E-03 8.28E-03 C
POLYCHLORINATED TERPHENYLS 61788-33-8 SV 3.68E-03 3.68E-03 C
POLYNUCLEAR AROMATIC HYDROCARBONS: NA SV
ACENAPHTHENE 83-32-9 V 2.84E+02 2.84E+02 NC
ANTHRACENE 120-12-7 V 1.42E+03 1.42E+03 NC
BENZ[A]ANTHRACENE 56-55-3 SV 2.27E-02 2.27E-02 C
BENZO[B]FLUORANTHENE 205-99-2 SV 2.27E-02 2.27E-02 C
BENZO[K]FLUORANTHENE 207-08-9 SV 2.27E-01 2.27E-01 C
BENZO[A]PYRENE 50-32-8 SV 5.34E-03 5.34E-03 C
CARBAZOLE 86-74-8 SV 8.28E-01 8.28E-01 C
CHRYSENE 218-01-9 SV 2.27E+00 2.27E+00 C
DIBENZ[A,H]ANTHRACENE 53-70-3 SV 2.27E-03 2.27E-03 C
FLUORANTHENE 206-44-0 SV 1.89E+02 1.89E+02 NC
FLUORENE 86-73-7 V 1.89E+02 1.89E+02 NC
INDENO[1,2,3-C,D]PYRENE 193-39-5 SV 2.27E-02 2.27E-02 C
2-METHYLNAPHTHALENE 91-57-6 V 1.89E+01 1.89E+01 NC
NAPHTHALENE 91-20-3 V 4.26E+00 4.26E+00 NC
PYRENE 129-00-0 V 1.42E+02 1.42E+02 NC
PROMETON 1610-18-0 SV 7.10E+01 7.10E+01 NC
PROMETRYN 7287-19-6 SV 1.89E+01 1.89E+01 NC
PROPACHLOR 1918-16-7 SV 6.15E+01 6.15E+01 NC
PROPARGITE 2312-35-8 SV 9.46E+01 9.46E+01 NC
PROPYLENE GLYCOL 57-55-6 SV 4.07E+00 4.07E+00 NC
PROPYLENE GLYCOL, MONOETHYL ETHER 52125-53-8 SV 3.31E+03 3.31E+03 NC
PROPYLENE GLYCOL, MONOMETHYL ETHER 107-98-2 SV 2.70E+03 2.70E+03 NC
PURSUIT 81335-77-5 SV 1.18E+03 1.18E+03 NC
PYRIDINE 110-86-1 SV 4.73E+00 4.73E+00 NC
QUINOLINE 91-22-5 SV 5.52E-03 5.52E-03 C
RDX 121-82-4 SV 1.51E-01 1.42E+01 1.51E-01 C
RESMETHRIN 10453-86-8 SV 1.42E+02 1.42E+02 NC
ROTENONE 83-79-4 SV 1.89E+01 1.89E+01 NC
SELENIUM 7782-49-2 M 2.37E+01 2.37E+01 NC
SILVER 7440-22-4 M 2.37E+01 2.37E+01 NC
SIMAZINE 122-34-9 SV 1.38E-01 2.37E+01 1.38E-01 C
SODIUM DIETHYLDITHIOCARBAMATE 148-18-5 SV 6.13E-02 1.42E+02 6.13E-02 C
STRONTIUM, STABLE 7440-24-6 M 2.84E+03 2.84E+03 NC
STRYCHNINE 57-24-9 SV 1.42E+00 1.42E+00 NC
STYRENE 100-42-5 V 1.35E+03 1.35E+03 NC
2,3,7,8-TETRACHLORODIBENZODIOXIN 1746-01-6 SV 1.10E-07 1.10E-07 C
1,2,4,5-TETRACHLOROBENZENE 95-94-3 SV 1.42E+00 1.42E+00 NC
1,1,1,2-TETRACHLOROETHANE 630-20-6 V 6.37E-01 1.42E+02 6.37E-01 C
1,1,2,2-TETRACHLOROETHANE 79-34-5 V 8.28E-02 2.84E+02 8.28E-02 C
TETRACHLOROETHENE 127-18-4 V 8.28E-01 6.62E+02 8.28E-01 C
2,3,4,6-TETRACHLOROPHENOL 58-90-2 SV 1.42E+02 1.42E+02 NC
P,A,A,A-TETRACHLOROTOLUENE 5216-25-1 SV 8.28E-04 8.28E-04 C
1,1,1,2-TETRAFLUOROETHANE 811-97-2 V 1.08E+05 1.08E+05 NC
TETRAHYDROFURAN 109-99-9 SV 2.44E+00 4.07E+02 2.44E+00 C
TETRYL 479-45-8 SV 1.89E+01 1.89E+01 NC
THALLIUM 7440-28-0 M 3.31E-01 3.31E-01 NC
THALLIUM ACETATE 563-68-8 M 4.26E-01 4.26E-01 NC
JMS/E082005001SLC PAGE 6 OF 7
Appendix D
Risk-based Air Concentrations for the EOD Personnel
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
CarcinogenicRisk-BasedConcentration (mg/M3)
Non-carcinogenicRisk-BasedConcentration (mg/M3)Final Risk-BasedConcentration (mg/M3)
FinalRisk-BasedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
THALLIUM CARBONATE 6533-73-9 M 3.79E-01 3.79E-01 NC
THALLIUM CHLORIDE 7791-12-0 M 3.79E-01 3.79E-01 NC
THALLIUM NITRATE 10102-45-1 M 4.26E-01 4.26E-01 NC
THALLIUM SULFATE (2:1)7446-18-6 M 3.79E-01 3.79E-01 NC
THIOBENCARB 28249-77-6 SV 4.73E+01 4.73E+01 NC
TIN 7440-31-5 M 2.84E+03 2.84E+03 NC
TITANIUM 7440-32-6 M 4.07E+01 4.07E+01 NC
TITANIUM DIOXIDE 13463-67-7 M 4.07E+01 4.07E+01 NC
TOLUENE 108-88-3 V 5.39E+02 5.39E+02 NC
TOLUENE-2,4-DIAMINE 95-80-7 SV 5.18E-03 5.18E-03 C
TOLUENE-2,5-DIAMINE 95-70-5 SV 2.84E+03 2.84E+03 NC
TOLUENE-2,6-DIAMINE 823-40-5 SV 9.46E+02 9.46E+02 NC
P-TOLUIDINE 106-49-0 SV 8.72E-02 8.72E-02 C
TOXAPHENE 8001-35-2 SV 1.51E-02 1.51E-02 C
1,2,4-TRIBROMOBENZENE 615-54-3 SV 2.37E+01 2.37E+01 NC
TRIBUTYLTIN OXIDE 56-35-9 SV 1.42E+00 1.42E+00 NC
2,4,6-TRICHLOROANILINE 634-93-5 SV 4.87E-01 4.87E-01 C
1,2,4-TRICHLOROBENZENE 120-82-1 V 4.73E+00 4.73E+00 NC
1,1,1-TRICHLOROETHANE 71-55-6 V 2.98E+03 2.98E+03 NC
1,1,2-TRICHLOROETHANE 79-00-5 V 2.96E-01 1.89E+01 2.96E-01 C
TRICHLOROETHENE 79-01-6 V 4.14E-02 4.73E+01 4.14E-02 C
TRICHLOROFLUOROMETHANE 75-69-4 V 9.46E+02 9.46E+02 NC
2,4,5-TRICHLOROPHENOL 95-95-4 SV 4.73E+02 4.73E+02 NC
2,4,6-TRICHLOROPHENOL 88-06-2 SV 1.66E+00 1.66E+00 C
2,4,5-T 93-76-5 SV 4.73E+01 4.73E+01 NC
2-(2,4,5-TRICHLOROPHENOXY)PROPIONIC ACID 93-72-1 SV 3.79E+01 3.79E+01 NC
1,1,2-TRICHLOROPROPANE 598-77-6 V 2.37E+01 2.37E+01 NC
1,2,3-TRICHLOROPROPANE 96-18-4 V 8.28E-03 6.62E+00 8.28E-03 C
1,2,3-TRICHLOROPROPENE 96-19-5 V 1.42E+00 1.42E+00 NC
1,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE 76-13-1 V 4.07E+04 4.07E+04 NC
1,2,4-TRIMETHYLBENZENE 95-63-6 V 8.04E+00 8.04E+00 NC
1,3,5-TRIMETHYLBENZENE 108-67-8 V 8.04E+00 8.04E+00 NC
1,3,5-TRINITROBENZENE 99-35-4 SV 1.42E+02 1.42E+02 NC
2,4,6-TRINITROTOLUENE 118-96-7 SV 5.52E-01 2.37E+00 5.52E-01 C
URANIUM (SOLUBLE SALTS; from IRIS) 7440-61-1 M 1.42E+01 1.42E+01 NC
URANIUM (SOLUBLE SALTS; provisional) 7440-61-1 M 9.46E-01 9.46E-01 NC
VANADIUM 7440-62-2 M 4.73E+00 4.73E+00 NC
VINCLOZOLIN 50471-44-8 SV 1.18E+02 1.18E+02 NC
VINYL ACETATE 108-05-4 V 2.70E+02 2.70E+02 NC
VINYL CHLORIDE: adult (see cover memos) 75-01-4 V 1.10E+00 1.32E+02 1.10E+00 C
WARFARIN 81-81-2 SV 1.42E+00 1.42E+00 NC
O-XYLENE 95-47-6 V 1.42E+02 1.42E+02 NC
M,P-XYLENES 1330-20-7 V 1.42E+02 1.42E+02 NC
XYLENES 1330-20-7 V 1.42E+02 1.42E+02 NC
ZINC 7440-66-6 M 1.42E+03 1.42E+03 NC
ZINEB 12122-67-7 SV 2.37E+02 2.37E+02 NC
JMS/E082005001SLC PAGE 7 OF 7
APPENDIX E
Risk-Based Air Concentrations for the Boater
Appendix E
Risk-based Air Concentrations for the Boater
Attachment 10B- Thermal Treatment Unit Human Health Risk Assessment
Carcinogenic Risk-basedConcentration (mg/M3)Non-carcinogenic Risk-basedConcentration (mg/M3)Final Risk-basedConcentration (mg/M3)
Final Risk-basedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
ACETALDEHYDE 75-07-0 V 1.16E-01 6.58E-01 1.16E-01 C
ACETOCHLOR 34256-82-1 SV 5.12E+00 5.12E+00 NC
ACETONE 67-64-1 V 2.30E+02 2.30E+02 NC
ACETONITRILE 75-05-8 V 4.35E+00 4.35E+00 NC
ACETOPHENONE 98-86-2 V 2.56E+01 2.56E+01 NC
ACROLEIN 107-02-8 V 1.46E-03 1.46E-03 NC
ACRYLAMIDE 79-06-1 SV 1.99E-04 5.12E-02 1.99E-04 C
ACRYLONITRILE 107-13-1 V 3.73E-03 1.46E-01 3.73E-03 C
ALACHLOR 15972-60-8 SV 1.12E-02 2.56E+00 1.12E-02 C
ALAR 1596-84-5 SV 3.84E+01 3.84E+01 NC
ALDICARB 116-06-3 SV 2.56E-01 2.56E-01 NC
ALDICARB SULFONE 1646-88-4 SV 2.56E-01 2.56E-01 NC
ALDRIN 309-00-2 SV 5.27E-05 7.68E-03 5.27E-05 C
ALLYL CHLORIDE 107-05-1 V 7.31E-02 7.31E-02 NC
ALUMINUM 7429-90-5 M 2.56E-01 2.56E-01 NC
AMINODINITROTOLUENES NA SV 5.12E-01 5.12E-01 NC
AMMONIA 7664-41-7 V 7.32E+00 7.32E+00 NC
ANILINE 62-53-3 SV 1.57E-01 7.42E-02 7.42E-02 NC
ANTIMONY 7440-36-0 M 1.02E-01 1.02E-01 NC
ANTIMONY TRIOXIDE 1309-64-4 M 1.46E-02 1.46E-02 NC
ARSENIC 7440-38-2 M 5.93E-05 7.68E-02 5.93E-05 C
ARSINE 7784-42-1 V 3.58E-03 3.58E-03 NC
ASSURE 76578-14-8 SV 2.30E+00 2.30E+00 NC
ATRAZINE 1912-24-9 SV 4.07E-03 8.96E+00 4.07E-03 C
BARIUM 7440-39-3 M 3.58E-02 3.58E-02 NC
BAYGON 114-26-1 SV 1.02E+00 1.02E+00 NC
BAYTHROID 68359-37-5 SV 6.40E+00 6.40E+00 NC
BENTAZON 25057-89-0 SV 7.68E+00 7.68E+00 NC
BENZALDEHYDE 100-52-7 SV 2.56E+01 2.56E+01 NC
BENZENE 71-43-2 V 3.32E-02 2.20E+00 3.32E-02 C
BENZENETHIOL 108-98-5 V 2.56E-03 2.56E-03 NC
BENZIDINE 92-87-5 SV 3.89E-06 7.68E-01 3.89E-06 C
BENZOIC ACID 65-85-0 SV 1.02E+03 1.02E+03 NC
BENZYL ALCOHOL 100-51-6 SV 7.68E+01 7.68E+01 NC
BENZYL CHLORIDE 100-44-7 V 5.27E-03 5.12E-01 5.27E-03 C
BERYLLIUM 7440-41-7 M 1.07E-04 1.46E-03 1.07E-04 C
BIPHENYL 92-52-4 V 1.28E+01 1.28E+01 NC
BIS(2-CHLOROETHYL)ETHER 111-44-4 V 8.14E-04 8.14E-04 C
BIS(2-CHLOROISOPROPYL)ETHER 108-60-1 V 2.56E-02 1.02E+01 2.56E-02 C
BIS(CHLOROMETHYL)ETHER 542-88-1 V 4.07E-06 4.07E-06 C
BIS(2-ETHYLHEXYL)PHTHALATE 117-81-7 SV 6.40E-02 5.12E+00 6.40E-02 C
BORON 7440-42-8 M 1.46E+00 1.46E+00 NC
BROMOBENZENE 108-86-1 V 7.68E-01 7.68E-01 NC
BROMODICHLOROMETHANE 75-27-4 V 1.44E-02 5.12E+00 1.44E-02 C
BROMOETHENE 593-60-2 V 8.14E-03 2.20E-01 8.14E-03 C
BROMOFORM 75-25-2 SV 2.30E-01 5.12E+00 2.30E-01 C
BROMOMETHANE 74-83-9 V 3.58E-01 3.58E-01 NC
BROMOPHOS 2104-96-3 SV 1.28E+00 1.28E+00 NC
1,3-BUTADIENE 106-99-0 V 8.96E-03 1.46E-01 8.96E-03 C
1-BUTANOL 71-36-3 SV 2.56E+01 2.56E+01 NC
BUTYLBENZYLPHTHALATE 85-68-7 SV 4.71E-01 5.12E+01 4.71E-01 C
CADMIUM-FOOD 7440-43-9 M 1.42E-04 1.46E-02 1.42E-04 C
CAPROLACTAM 105-60-2 SV 1.28E+02 1.28E+02 NC
CARBARYL 63-25-2 SV 2.56E+01 2.56E+01 NC
CARBON DISULFIDE 75-15-0 V 5.12E+01 5.12E+01 NC
CARBON TETRACHLORIDE 56-23-5 V 1.69E-02 1.28E+01 1.69E-02 C
CARBOSULFAN 55285-14-8 SV 2.56E+00 2.56E+00 NC
CHLORAL HYDRATE 302-17-0 SV 2.56E+01 2.56E+01 NC
CHLORANIL 118-75-2 SV 2.24E-03 2.24E-03 C
CHLORDANE 57-74-9 SV 2.56E-03 5.12E-02 2.56E-03 C
JMS/E082005001SLC PAGE 1 OF 7
Appendix E
Risk-based Air Concentrations for the Boater
Attachment 10B- Thermal Treatment Unit Human Health Risk Assessment
Carcinogenic Risk-basedConcentration (mg/M3)Non-carcinogenic Risk-basedConcentration (mg/M3)Final Risk-basedConcentration (mg/M3)
Final Risk-basedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
CHLORINE 7782-50-5 V 1.46E-02 1.46E-02 NC
CHLORINE DIOXIDE 10049-04-4 V 1.46E-02 1.46E-02 NC
CHLOROACETIC ACID 79-11-8 SV 5.12E-01 5.12E-01 NC
4-CHLOROANILINE 106-47-8 SV 1.66E-02 1.02E+00 1.66E-02 C
CHLOROBENZENE 108-90-7 V 4.35E+00 4.35E+00 NC
2-CHLORO-1,3-BUTADIENE 126-99-8 V 5.12E-01 5.12E-01 NC
1-CHLORO-1,1-DIFLUOROETHANE 75-68-3 V 3.58E+03 3.58E+03 NC
CHLORODIFLUOROMETHANE 75-45-6 V 3.58E+03 3.58E+03 NC
CHLOROETHANE 75-00-3 V 3.09E-01 7.42E+02 3.09E-01 C
CHLOROFORM 67-66-3 V 1.11E-02 3.58E+00 1.11E-02 C
CHLOROMETHANE 74-87-3 V 6.65E+00 6.65E+00 NC
4-CHLORO-2-METHYLANILINE 95-69-2 SV 1.54E-03 1.54E-03 C
BETA-CHLORONAPHTHALENE 91-58-7 V 2.05E+01 2.05E+01 NC
O-CHLORONITROBENZENE 88-73-3 V 9.23E-02 5.12E-03 5.12E-03 NC
P-CHLORONITROBENZENE 100-00-5 V 1.34E-01 4.35E-02 4.35E-02 NC
2-CHLOROPHENOL 95-57-8 V 1.28E+00 1.28E+00 NC
2-CHLOROPROPANE 75-29-6 V 7.42E+00 7.42E+00 NC
O-CHLOROTOLUENE 95-49-8 V 5.12E+00 5.12E+00 NC
CHLORPYRIFOS 2921-88-2 SV 7.68E-01 7.68E-01 NC
CHLORPYRIFOS-METHYL 5598-13-0 SV 2.56E+00 2.56E+00 NC
CHROMIUM 7440-47-3 M 3.84E+02 3.84E+02 NC
CHROMIUM III 16065-83-1 M 3.84E+02 3.84E+02 NC
CHROMIUM VI 18540-29-9 M 2.18E-05 7.68E-03 2.18E-05 C
COBALT 7440-48-4 M 9.14E-05 1.46E-03 9.14E-05 C
COKE OVEN EMISSIONS (COAL TAR) 8007-45-2 SV 4.07E-04 4.07E-04 C
COPPER 7440-50-8 M 1.02E+01 1.02E+01 NC
CUMENE 98-82-8 V 2.82E+01 2.82E+01 NC
CYANIDE (FREE) 57-12-5 M 5.12E+00 5.12E+00 NC
CALCIUM CYANIDE 592-01-8 M 1.02E+01 1.02E+01 NC
COPPER CYANIDE 544-92-3 M 1.28E+00 1.28E+00 NC
CYANOGEN 460-19-5 V 1.02E+01 1.02E+01 NC
HYDROGEN CYANIDE 74-90-8 V 2.20E-01 2.20E-01 NC
POTASSIUM CYANIDE 151-50-8 M 1.28E+01 1.28E+01 NC
POTASSIUM SILVER CYANIDE 506-61-6 M 5.12E+01 5.12E+01 NC
SILVER CYANIDE 506-64-9 M 2.56E+01 2.56E+01 NC
SODIUM CYANIDE 143-33-9 M 1.02E+01 1.02E+01 NC
THIOCYANATE NA M 2.56E-02 2.56E-02 NC
ZINC CYANIDE 557-21-1 M 1.28E+01 1.28E+01 NC
CYCLOHEXANE 110-82-7 V 4.35E+02 4.35E+02 NC
CYCLOHEXANONE 108-94-1 SV 1.28E+03 1.28E+03 NC
CYHALOTHRIN/KARATE 68085-85-8 SV 1.28E+00 1.28E+00 NC
CYPERMETHRIN 52315-07-8 SV 2.56E+00 2.56E+00 NC
DACTHAL 1861-32-1 SV 2.56E+00 2.56E+00 NC
DALAPON 75-99-0 SV 7.68E+00 7.68E+00 NC
DDD 72-54-8 SV 3.73E-03 5.12E-01 3.73E-03 C
DDE 72-55-9 SV 2.63E-03 2.63E-03 C
DDT 50-29-3 SV 2.63E-03 1.28E-01 2.63E-03 C
DIAZINON 333-41-5 SV 2.30E-01 2.30E-01 NC
DIBENZOFURAN 132-64-9 V 5.12E-01 5.12E-01 NC
1,4-DIBROMOBENZENE 106-37-6 SV 2.56E+00 2.56E+00 NC
DIBROMOCHLOROMETHANE 124-48-1 V 1.07E-02 5.12E+00 1.07E-02 C
1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 V 3.73E-01 1.46E-02 1.46E-02 NC
1,2-DIBROMOETHANE 106-93-4 V 4.48E-04 6.65E-01 4.48E-04 C
DIBUTYLPHTHALATE 84-74-2 SV 2.56E+01 2.56E+01 NC
DICAMBA 1918-00-9 SV 7.68E+00 7.68E+00 NC
1,2-DICHLOROBENZENE 95-50-1 V 1.02E+01 1.02E+01 NC
1,3-DICHLOROBENZENE 541-73-1 V 7.68E-01 7.68E-01 NC
1,4-DICHLOROBENZENE 106-46-7 V 4.07E-02 5.86E+01 4.07E-02 C
3,3'-DICHLOROBENZIDINE 91-94-1 SV 1.99E-03 1.99E-03 C
DICHLORODIFLUOROMETHANE 75-71-8 V 1.28E+01 1.28E+01 NC
JMS/E082005001SLC PAGE 2 OF 7
Appendix E
Risk-based Air Concentrations for the Boater
Attachment 10B- Thermal Treatment Unit Human Health Risk Assessment
Carcinogenic Risk-basedConcentration (mg/M3)Non-carcinogenic Risk-basedConcentration (mg/M3)Final Risk-basedConcentration (mg/M3)
Final Risk-basedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
1,1-DICHLOROETHANE 75-34-3 V 3.58E+01 3.58E+01 NC
1,2-DICHLOROETHANE 107-06-2 V 9.84E-03 1.79E+02 9.84E-03 C
1,1-DICHLOROETHENE 75-35-4 V 1.54E+01 1.54E+01 NC
CIS-1,2-DICHLOROETHENE 156-59-2 V 2.56E+00 2.56E+00 NC
TRANS-1,2-DICHLOROETHENE 156-60-5 V 4.35E+00 4.35E+00 NC
TOTAL 1,2-DICHLOROETHENE 540-59-0 V 2.30E+00 2.30E+00 NC
2,4-DICHLOROPHENOL 120-83-2 SV 7.68E-01 7.68E-01 NC
2,4-D 94-75-7 SV 2.56E+00 2.56E+00 NC
4-(2,4-DICHLOROPHENOXY)BUTYRIC ACID 94-82-6 SV 2.05E+00 2.05E+00 NC
1,2-DICHLOROPROPANE 78-87-5 V 1.32E-02 2.92E-01 1.32E-02 C
1,3-DICHLOROPROPANE 142-28-9 V 5.12E+00 5.12E+00 NC
2,3-DICHLOROPROPANOL 616-23-9 SV 7.68E-01 7.68E-01 NC
1,3-DICHLOROPROPENE 542-75-6 V 8.96E-02 1.46E+00 8.96E-02 C
DICHLORVOS 62-73-7 SV 3.09E-03 3.66E-02 3.09E-03 C
DIELDRIN 60-57-1 SV 5.60E-05 1.28E-02 5.60E-05 C
DIESEL EMISSIONS NA SV 3.58E-01 3.58E-01 NC
DIETHYLPHTHALATE 84-66-2 SV 2.05E+02 2.05E+02 NC
DIETHYLENE GLYCOL, MONOBUTYL ETHER 112-34-5 SV 1.46E+00 1.46E+00 NC
DIETHYLENE GLYCOL, MONOETHYL ETHER 111-90-0 SV 2.20E-01 2.20E-01 NC
DI(2-ETHYLHEXYL)ADIPATE 103-23-1 SV 7.46E-01 1.54E+02 7.46E-01 C
DIETHYLSTILBESTROL 56-53-1 SV 1.91E-07 1.91E-07 C
DIFENZOQUAT (AVENGE)43222-48-6 SV 2.05E+01 2.05E+01 NC
1,1-DIFLUOROETHANE 75-37-6 V 2.82E+03 2.82E+03 NC
DIISOPROPYL METHYLPHOSPHONATE (DIMP)1445-75-6 SV 2.05E+01 2.05E+01 NC
3,3'-DIMETHOXYBENZIDINE 119-90-4 SV 6.40E-02 6.40E-02 C
N,N-DIMETHYLANILINE 121-69-7 SV 5.12E-01 5.12E-01 NC
3,3'-DIMETHYLBENZIDINE 119-93-7 SV 3.89E-04 3.89E-04 C
2,4-DIMETHYLPHENOL 105-67-9 SV 5.12E+00 5.12E+00 NC
2,6-DIMETHYLPHENOL 576-26-1 SV 1.54E-01 1.54E-01 NC
3,4-DIMETHYLPHENOL 95-65-8 SV 2.56E-01 2.56E-01 NC
DIMETHYLPHTHALATE 131-11-3 SV 2.56E+03 2.56E+03 NC
1,2-DINITROBENZENE 528-29-0 SV 2.56E-02 2.56E-02 NC
1,3-DINITROBENZENE 99-65-0 SV 2.56E-02 2.56E-02 NC
1,4-DINITROBENZENE 100-25-4 SV 2.56E-02 2.56E-02 NC
4,6-DINITRO-O-CYCLOHEXYL PHENOL 131-89-5 SV 5.12E-01 5.12E-01 NC
4,6-DINITRO-2-METHYLPHENOL 534-52-1 SV 2.56E-02 2.56E-02 NC
2,4-DINITROPHENOL 51-28-5 SV 5.12E-01 5.12E-01 NC
DINITROTOLUENE MIX NA SV 1.32E-03 1.32E-03 C
2,4-DINITROTOLUENE 121-14-2 SV 5.12E-01 5.12E-01 NC
2,6-DINITROTOLUENE 606-20-2 SV 2.56E-01 2.56E-01 NC
DINOSEB 88-85-7 SV 2.56E-01 2.56E-01 NC
DIOCTYLPHTHALATE 117-84-0 SV 1.02E+01 1.02E+01 NC
1,4-DIOXANE 123-91-1 SV 8.14E-02 8.14E-02 C
DIPHENYLAMINE 122-39-4 SV 6.40E+00 6.40E+00 NC
1,2-DIPHENYLHYDRAZINE 122-66-7 SV 1.12E-03 1.12E-03 C
DIQUAT 85-00-7 SV 5.63E-01 5.63E-01 NC
DISULFOTON 298-04-4 SV 1.02E-02 1.02E-02 NC
1,4-DITHIANE 505-29-3 SV 2.56E+00 2.56E+00 NC
DIURON 330-54-1 SV 5.12E-01 5.12E-01 NC
ENDOSULFAN 115-29-7 SV 1.54E+00 1.54E+00 NC
ENDRIN 72-20-8 SV 7.68E-02 7.68E-02 NC
EPICHLOROHYDRIN 106-89-8 V 2.13E-01 7.32E-02 7.32E-02 NC
ETHION 563-12-2 SV 1.28E-01 1.28E-01 NC
ETHYL ACETATE 141-78-6 V 2.30E+02 2.30E+02 NC
ETHYLBENZENE 100-41-4 V 7.42E+01 7.42E+01 NC
ETHYLENE DIAMINE 107-15-3 SV 2.30E+01 2.30E+01 NC
ETHYLENE GLYCOL 107-21-1 SV 5.12E+02 5.12E+02 NC
ETHYLENE GLYCOL, MONOBUTYL ETHER 111-76-2 SV 9.47E+02 9.47E+02 NC
ETHYLENE OXIDE 75-21-8 V 2.56E-03 2.56E-03 C
ETHYL ETHER 60-29-7 V 5.12E+01 5.12E+01 NC
JMS/E082005001SLC PAGE 3 OF 7
Appendix E
Risk-based Air Concentrations for the Boater
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Carcinogenic Risk-basedConcentration (mg/M3)Non-carcinogenic Risk-basedConcentration (mg/M3)Final Risk-basedConcentration (mg/M3)
Final Risk-basedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
FENAMIPHOS 22224-92-6 SV 6.40E-02 6.40E-02 NC
FLUOMETURON 2164-17-2 SV 3.33E+00 3.33E+00 NC
FLUORINE 7782-41-4 M 1.54E+01 1.54E+01 NC
FOMESAFEN 72178-02-0 SV 4.71E-03 4.71E-03 C
FONOFOS 944-22-9 SV 5.12E-01 5.12E-01 NC
FORMALDEHYDE 50-00-0 SV 1.99E-02 5.12E+01 1.99E-02 C
FURAN 110-00-9 V 2.56E-01 2.56E-01 NC
FURFURAL 98-01-1 SV 2.56E+00 2.56E+00 NC
GLYPHOSATE 1071-83-6 SV 2.56E+01 2.56E+01 NC
HEPTACHLOR 76-44-8 SV 1.99E-04 1.28E-01 1.99E-04 C
HEPTACHLOR EPOXIDE 1024-57-3 SV 9.84E-05 3.33E-03 9.84E-05 C
HEXABROMOBENZENE 87-82-1 SV 5.12E-01 5.12E-01 NC
HEXACHLOROBENZENE 118-74-1 SV 5.60E-04 2.05E-01 5.60E-04 C
HEXACHLOROBUTADIENE 87-68-3 SV 1.15E-02 5.12E-02 1.15E-02 C
ALPHA-HCH 319-84-6 SV 1.42E-04 1.42E-04 C
BETA-HCH 319-85-7 SV 4.98E-04 4.98E-04 C
GAMMA-HCH (LINDANE)58-89-9 SV 6.89E-04 7.68E-02 6.89E-04 C
TECHNICAL HCH 608-73-1 SV 4.98E-04 4.98E-04 C
HEXACHLOROCYCLOPENTADIENE 77-47-4 SV 1.46E-02 1.46E-02 NC
HEXACHLORODIBENZODIOXIN MIX 19408-74-3 SV 1.97E-07 1.97E-07 C
HEXACHLOROETHANE 67-72-1 SV 6.40E-02 2.56E-01 6.40E-02 C
HEXACHLOROPHENE 70-30-4 SV 7.68E-02 7.68E-02 NC
1,6-HEXAMETHYLENE DIISOCYANATE 822-06-0 SV 7.42E-04 7.42E-04 NC
HEXANE 110-54-3 V 1.46E+01 1.46E+01 NC
HMX 2691-41-0 SV 1.28E+01 1.28E+01 NC
HYDRAZINE 302-01-2 V 5.27E-05 5.27E-05 C
HYDROGEN CHLORIDE 7647-01-0 V 1.46E+00 1.46E+00 NC
HYDROGEN SULFIDE 7783-06-4 V 1.46E-01 1.46E-01 NC
HYDROQUINONE 123-31-9 SV 1.60E-02 1.02E+01 1.60E-02 C
IRON 7439-89-6 M 7.68E+01 7.68E+01 NC
ISOBUTANOL 78-83-1 V 7.68E+01 7.68E+01 NC
ISOPHORONE 78-59-1 SV 9.43E-01 5.12E+01 9.43E-01 C
TETRAETHYLLEAD 78-00-2 V 2.56E-05 2.56E-05 NC
KEPONE 143-50-0 SV 1.12E-04 5.12E-02 1.12E-04 C
LITHIUM 7439-93-2 M 5.12E+00 5.12E+00 NC
MALATHION 121-75-5 SV 5.12E+00 5.12E+00 NC
MALEIC ANHYDRIDE 108-31-6 SV 2.56E+01 2.56E+01 NC
MANGANESE-FOOD 7439-96-5 M 3.66E-03 3.66E-03 NC
MEPHOSFOLAN 950-10-7 SV 2.30E-02 2.30E-02 NC
MEPIQUAT CHLORIDE 24307-26-4 SV 7.68E+00 7.68E+00 NC
MERCURIC CHLORIDE 7487-94-7 M 7.68E-02 7.68E-02 NC
MERCURY (elemental)7439-97-6 M 2.20E-02 2.20E-02 NC
METHYLMERCURY 22967-92-6 V 2.56E-02 2.56E-02 NC
METHANOL 67-56-1 V 1.28E+02 1.28E+02 NC
METHIDATHION 950-37-8 SV 2.56E-01 2.56E-01 NC
METHOXYCHLOR 72-43-5 SV 1.28E+00 1.28E+00 NC
METHYL ACETATE 79-20-9 V 2.56E+02 2.56E+02 NC
METHYL ACRYLATE 96-33-3 V 7.68E+00 7.68E+00 NC
2-METHYLANILINE 95-53-4 SV 3.73E-03 3.73E-03 C
4-(2-METHYL-4-CHLOROPHENOXY) BUTYRIC ACID 94-81-5 SV 2.56E+00 2.56E+00 NC
2-METHYL-4-CHLOROPHENOXYACETIC ACID (MCPA)94-74-6 SV 1.28E-01 1.28E-01 NC
2-(2-METHYL-4-CHLOROPHENOXY)PROPIONIC ACID (MCPP)93-65-2 SV 2.56E-01 2.56E-01 NC
METHYLCYCLOHEXANE 108-87-2 V 2.20E+02 2.20E+02 NC
METHYLENE BROMIDE 74-95-3 V 2.56E+00 2.56E+00 NC
METHYLENE CHLORIDE 75-09-2 V 5.43E-01 7.68E+01 5.43E-01 C
4,4'-METHYLENE BIS(2-CHLOROANILINE)101-14-4 SV 6.89E-03 1.79E-01 6.89E-03 C
4,4'-METHYLENE BIS(N,N'-DIMETHYL)ANILINE 101-61-1 SV 1.95E-02 1.95E-02 C
4,4'-METHYLENEDIPHENYL ISOCYANATE 101-68-8 SV 4.35E-02 4.35E-02 NC
METHYL ETHYL KETONE (2-BUTANONE)78-93-3 V 3.58E+02 3.58E+02 NC
METHYL ISOBUTYL KETONE (4-METHYL-2-PENTANONE)108-10-1 V 2.20E+02 2.20E+02 NC
JMS/E082005001SLC PAGE 4 OF 7
Appendix E
Risk-based Air Concentrations for the Boater
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Carcinogenic Risk-basedConcentration (mg/M3)Non-carcinogenic Risk-basedConcentration (mg/M3)Final Risk-basedConcentration (mg/M3)
Final Risk-basedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
METHYL METHACRYLATE 80-62-6 V 5.12E+01 5.12E+01 NC
METHYL PARATHION 298-00-0 SV 6.40E-02 6.40E-02 NC
2-METHYLPHENOL 95-48-7 SV 1.28E+01 1.28E+01 NC
3-METHYLPHENOL 108-39-4 SV 1.28E+01 1.28E+01 NC
4-METHYLPHENOL 106-44-5 SV 1.28E+00 1.28E+00 NC
METHYLSTYRENE MIX 25013-15-4 V 2.56E+00 2.56E+00 NC
ALPHA-METHYLSTYRENE 98-83-9 V 1.79E+01 1.79E+01 NC
METHYL TERT-BUTYL ETHER 1634-04-4 V 2.24E-01 2.19E+02 2.24E-01 C
METOLACHLOR (DUAL)51218-45-2 SV 3.84E+01 3.84E+01 NC
MIREX 2385-85-5 SV 5.12E-02 5.12E-02 NC
MOLYBDENUM 7439-98-7 M 1.28E+00 1.28E+00 NC
MONOCHLORAMINE 10599-90-3 SV 2.56E+01 2.56E+01 NC
NALED 300-76-5 SV 5.12E-01 5.12E-01 NC
NICKEL REFINERY DUST NA M 1.07E-03 1.07E-03 C
NICKEL 7440-02-0 M 5.12E+00 5.12E+00 NC
NITRATE 14797-55-8 M 4.09E+02 4.09E+02 NC
NITRITE 14797-65-0 M 2.56E+01 2.56E+01 NC
2-NITROANILINE 88-74-4 SV 7.68E-03 7.68E-03 NC
3-NITROANILINE 99-09-2 SV 4.48E-02 7.68E-02 4.48E-02 C
4-NITROANILINE 100-01-6 SV 4.48E-02 2.56E-01 4.48E-02 C
NITROBENZENE 98-95-3 V 1.54E-01 1.54E-01 NC
NITROGLYCERIN 55-63-0 SV 6.40E-02 6.40E-02 C
NITROGUANIDINE 556-88-7 SV 2.56E+01 2.56E+01 NC
2-NITROPROPANE 79-46-9 V 9.53E-05 1.46E+00 9.53E-05 C
N-NITROSO-DI-N-BUTYLAMINE 924-16-3 V 1.60E-04 1.60E-04 C
N-NITROSODIETHANOLAMINE 1116-54-7 SV 3.20E-04 3.20E-04 C
N-NITROSODIETHYLAMINE 55-18-5 SV 5.97E-06 5.97E-06 C
N-NITROSODIMETHYLAMINE 62-75-9 SV 1.76E-05 2.05E-03 1.76E-05 C
N-NITROSODIPHENYLAMINE 86-30-6 SV 1.83E-01 5.12E+00 1.83E-01 C
N-NITROSODIPROPYLAMINE 621-64-7 SV 1.28E-04 1.28E-04 C
N-NITROSO-N-METHYLETHYLAMINE 10595-95-6 SV 4.07E-05 4.07E-05 C
N-NITROSOPYRROLIDINE 930-55-2 SV 4.27E-04 4.27E-04 C
M-NITROTOLUENE 99-08-1 V 5.12E+00 5.12E+00 NC
O-NITROTOLUENE 88-72-2 V 3.89E-03 2.56E+00 3.89E-03 C
P-NITROTOLUENE 99-99-0 V 5.27E-02 2.56E+00 5.27E-02 C
NUSTAR 85509-19-9 SV 1.79E-01 1.79E-01 NC
ORYZALIN 19044-88-3 SV 1.28E+01 1.28E+01 NC
OXADIAZON 19666-30-9 SV 1.28E+00 1.28E+00 NC
OXAMYL 23135-22-0 SV 6.40E+00 6.40E+00 NC
OXYFLUORFEN 42874-03-3 SV 7.68E-01 7.68E-01 NC
PARAQUAT DICHLORIDE 1910-42-5 SV 1.15E+00 1.15E+00 NC
PARATHION 56-38-2 SV 1.54E+00 1.54E+00 NC
PENTACHLOROBENZENE 608-93-5 SV 2.05E-01 2.05E-01 NC
PENTACHLORONITROBENZENE 82-68-8 SV 3.44E-03 7.68E-01 3.44E-03 C
PENTACHLOROPHENOL 87-86-5 SV 7.46E-03 7.68E+00 7.46E-03 C
Pentaerythritoltetranitrate 78-11-5 SV 8.14E-03 7.68E-01 8.14E-03 C
PERCHLORATE 7601-90-3 M 1.79E-01 1.79E-01 NC
PERMETHRIN 52645-53-1 SV 1.28E+01 1.28E+01 NC
PHENOL 108-95-2 SV 7.68E+01 7.68E+01 NC
M-PHENYLENEDIAMINE 108-45-2 SV 1.54E+00 1.54E+00 NC
O-PHENYLENEDIAMINE 95-54-5 SV 1.91E-02 1.91E-02 C
P-PHENYLENEDIAMINE 106-50-3 SV 4.86E+01 4.86E+01 NC
PHOSPHINE 7803-51-2 SV 2.20E-02 2.20E-02 NC
PHOSPHORIC ACID 7664-38-2 M 7.42E-01 7.42E-01 NC
PHOSPHORUS (WHITE)7723-14-0 M 5.12E-03 5.12E-03 NC
PHTHALIC ANHYDRIDE 85-44-9 SV 8.78E+00 8.78E+00 NC
POLYBROMINATED BIPHENYLS NA SV 1.01E-04 1.79E-03 1.01E-04 C
POLYCHLORINATED BIPHENYLS 1336-36-3 SV 4.48E-04 4.48E-04 C
AROCLOR-1016 12674-11-2 SV 1.28E-02 1.79E-02 1.28E-02 C
AROCLOR-1221 11104-28-2 SV 4.48E-04 4.48E-04 C
JMS/E082005001SLC PAGE 5 OF 7
Appendix E
Risk-based Air Concentrations for the Boater
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Carcinogenic Risk-basedConcentration (mg/M3)Non-carcinogenic Risk-basedConcentration (mg/M3)Final Risk-basedConcentration (mg/M3)
Final Risk-basedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
AROCLOR-1232 11141-16-5 SV 4.48E-04 4.48E-04 C
AROCLOR-1242 53469-21-9 SV 4.48E-04 4.48E-04 C
AROCLOR-1248 12672-29-6 SV 4.48E-04 4.48E-04 C
AROCLOR-1254 11097-69-1 SV 4.48E-04 5.12E-03 4.48E-04 C
AROCLOR-1260 11096-82-5 SV 4.48E-04 4.48E-04 C
POLYCHLORINATED TERPHENYLS 61788-33-8 SV 1.99E-04 1.99E-04 C
POLYNUCLEAR AROMATIC HYDROCARBONS:NA SV
ACENAPHTHENE 83-32-9 V 1.54E+01 1.54E+01 NC
ANTHRACENE 120-12-7 V 7.68E+01 7.68E+01 NC
BENZ[A]ANTHRACENE 56-55-3 SV 1.23E-03 1.23E-03 C
BENZO[B]FLUORANTHENE 205-99-2 SV 1.23E-03 1.23E-03 C
BENZO[K]FLUORANTHENE 207-08-9 SV 1.23E-02 1.23E-02 C
BENZO[A]PYRENE 50-32-8 SV 2.89E-04 2.89E-04 C
CARBAZOLE 86-74-8 SV 4.48E-02 4.48E-02 C
CHRYSENE 218-01-9 SV 1.23E-01 1.23E-01 C
DIBENZ[A,H]ANTHRACENE 53-70-3 SV 1.23E-04 1.23E-04 C
FLUORANTHENE 206-44-0 SV 1.02E+01 1.02E+01 NC
FLUORENE 86-73-7 V 1.02E+01 1.02E+01 NC
INDENO[1,2,3-C,D]PYRENE 193-39-5 SV 1.23E-03 1.23E-03 C
2-METHYLNAPHTHALENE 91-57-6 V 1.02E+00 1.02E+00 NC
NAPHTHALENE 91-20-3 V 2.30E-01 2.30E-01 NC
PYRENE 129-00-0 V 7.68E+00 7.68E+00 NC
PROMETON 1610-18-0 SV 3.84E+00 3.84E+00 NC
PROMETRYN 7287-19-6 SV 1.02E+00 1.02E+00 NC
PROPACHLOR 1918-16-7 SV 3.33E+00 3.33E+00 NC
PROPARGITE 2312-35-8 SV 5.12E+00 5.12E+00 NC
PROPYLENE GLYCOL 57-55-6 SV 2.20E-01 2.20E-01 NC
PROPYLENE GLYCOL, MONOETHYL ETHER 52125-53-8 SV 1.79E+02 1.79E+02 NC
PROPYLENE GLYCOL, MONOMETHYL ETHER 107-98-2 SV 1.46E+02 1.46E+02 NC
PURSUIT 81335-77-5 SV 6.40E+01 6.40E+01 NC
PYRIDINE 110-86-1 SV 2.56E-01 2.56E-01 NC
QUINOLINE 91-22-5 SV 2.99E-04 2.99E-04 C
RDX 121-82-4 SV 8.14E-03 7.68E-01 8.14E-03 C
RESMETHRIN 10453-86-8 SV 7.68E+00 7.68E+00 NC
ROTENONE 83-79-4 SV 1.02E+00 1.02E+00 NC
SELENIUM 7782-49-2 M 1.28E+00 1.28E+00 NC
SILVER 7440-22-4 M 1.28E+00 1.28E+00 NC
SIMAZINE 122-34-9 SV 7.46E-03 1.28E+00 7.46E-03 C
SODIUM DIETHYLDITHIOCARBAMATE 148-18-5 SV 3.32E-03 7.68E+00 3.32E-03 C
STRONTIUM, STABLE 7440-24-6 M 1.54E+02 1.54E+02 NC
STRYCHNINE 57-24-9 SV 7.68E-02 7.68E-02 NC
STYRENE 100-42-5 V 7.32E+01 7.32E+01 NC
2,3,7,8-TETRACHLORODIBENZODIOXIN 1746-01-6 SV 5.97E-09 5.97E-09 C
1,2,4,5-TETRACHLOROBENZENE 95-94-3 SV 7.68E-02 7.68E-02 NC
1,1,1,2-TETRACHLOROETHANE 630-20-6 V 3.44E-02 7.68E+00 3.44E-02 C
1,1,2,2-TETRACHLOROETHANE 79-34-5 V 4.48E-03 1.54E+01 4.48E-03 C
TETRACHLOROETHENE 127-18-4 V 4.48E-02 3.58E+01 4.48E-02 C
2,3,4,6-TETRACHLOROPHENOL 58-90-2 SV 7.68E+00 7.68E+00 NC
P,A,A,A-TETRACHLOROTOLUENE 5216-25-1 SV 4.48E-05 4.48E-05 C
1,1,1,2-TETRAFLUOROETHANE 811-97-2 V 5.86E+03 5.86E+03 NC
TETRAHYDROFURAN 109-99-9 SV 1.32E-01 2.20E+01 1.32E-01 C
TETRYL 479-45-8 SV 1.02E+00 1.02E+00 NC
THALLIUM 7440-28-0 M 1.79E-02 1.79E-02 NC
THALLIUM ACETATE 563-68-8 M 2.30E-02 2.30E-02 NC
THALLIUM CARBONATE 6533-73-9 M 2.05E-02 2.05E-02 NC
THALLIUM CHLORIDE 7791-12-0 M 2.05E-02 2.05E-02 NC
THALLIUM NITRATE 10102-45-1 M 2.30E-02 2.30E-02 NC
THALLIUM SULFATE (2:1)7446-18-6 M 2.05E-02 2.05E-02 NC
THIOBENCARB 28249-77-6 SV 2.56E+00 2.56E+00 NC
TIN 7440-31-5 M 1.54E+02 1.54E+02 NC
JMS/E082005001SLC PAGE 6 OF 7
Appendix E
Risk-based Air Concentrations for the Boater
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Carcinogenic Risk-basedConcentration (mg/M3)Non-carcinogenic Risk-basedConcentration (mg/M3)Final Risk-basedConcentration (mg/M3)
Final Risk-basedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
TITANIUM 7440-32-6 M 2.20E+00 2.20E+00 NC
TITANIUM DIOXIDE 13463-67-7 M 2.20E+00 2.20E+00 NC
TOLUENE 108-88-3 V 2.92E+01 2.92E+01 NC
TOLUENE-2,4-DIAMINE 95-80-7 SV 2.80E-04 2.80E-04 C
TOLUENE-2,5-DIAMINE 95-70-5 SV 1.54E+02 1.54E+02 NC
TOLUENE-2,6-DIAMINE 823-40-5 SV 5.12E+01 5.12E+01 NC
P-TOLUIDINE 106-49-0 SV 4.71E-03 4.71E-03 C
TOXAPHENE 8001-35-2 SV 8.14E-04 8.14E-04 C
1,2,4-TRIBROMOBENZENE 615-54-3 SV 1.28E+00 1.28E+00 NC
TRIBUTYLTIN OXIDE 56-35-9 SV 7.68E-02 7.68E-02 NC
2,4,6-TRICHLOROANILINE 634-93-5 SV 2.63E-02 2.63E-02 C
1,2,4-TRICHLOROBENZENE 120-82-1 V 2.56E-01 2.56E-01 NC
1,1,1-TRICHLOROETHANE 71-55-6 V 1.61E+02 1.61E+02 NC
1,1,2-TRICHLOROETHANE 79-00-5 V 1.60E-02 1.02E+00 1.60E-02 C
TRICHLOROETHENE 79-01-6 V 2.24E-03 2.56E+00 2.24E-03 C
TRICHLOROFLUOROMETHANE 75-69-4 V 5.12E+01 5.12E+01 NC
2,4,5-TRICHLOROPHENOL 95-95-4 SV 2.56E+01 2.56E+01 NC
2,4,6-TRICHLOROPHENOL 88-06-2 SV 8.96E-02 8.96E-02 C
2,4,5-T 93-76-5 SV 2.56E+00 2.56E+00 NC
2-(2,4,5-TRICHLOROPHENOXY)PROPIONIC ACID 93-72-1 SV 2.05E+00 2.05E+00 NC
1,1,2-TRICHLOROPROPANE 598-77-6 V 1.28E+00 1.28E+00 NC
1,2,3-TRICHLOROPROPANE 96-18-4 V 4.48E-04 3.58E-01 4.48E-04 C
1,2,3-TRICHLOROPROPENE 96-19-5 V 7.68E-02 7.68E-02 NC
1,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE 76-13-1 V 2.20E+03 2.20E+03 NC
1,2,4-TRIMETHYLBENZENE 95-63-6 V 4.35E-01 4.35E-01 NC
1,3,5-TRIMETHYLBENZENE 108-67-8 V 4.35E-01 4.35E-01 NC
1,3,5-TRINITROBENZENE 99-35-4 SV 7.68E+00 7.68E+00 NC
2,4,6-TRINITROTOLUENE 118-96-7 SV 2.99E-02 1.28E-01 2.99E-02 C
URANIUM (SOLUBLE SALTS; from IRIS)7440-61-1 M 7.68E-01 7.68E-01 NC
URANIUM (SOLUBLE SALTS; provisional)7440-61-1 M 5.12E-02 5.12E-02 NC
VANADIUM 7440-62-2 M 2.56E-01 2.56E-01 NC
VINCLOZOLIN 50471-44-8 SV 6.40E+00 6.40E+00 NC
VINYL ACETATE 108-05-4 V 1.46E+01 1.46E+01 NC
VINYL CHLORIDE: adult (see cover memos)75-01-4 V 5.97E-02 7.17E+00 5.97E-02 C
WARFARIN 81-81-2 SV 7.68E-02 7.68E-02 NC
O-XYLENE 95-47-6 V 7.68E+00 7.68E+00 NC
M,P-XYLENES 1330-20-7 V 7.68E+00 7.68E+00 NC
XYLENES 1330-20-7 V 7.68E+00 7.68E+00 NC
ZINC 7440-66-6 M 7.68E+01 7.68E+01 NC
ZINEB 12122-67-7 SV 1.28E+01 1.28E+01 NC
JMS/E082005001SLC PAGE 7 OF 7
APPENDIX F
Risk-Based Air Concentrations for the Oasis Resident
Appendix F
Risk-Based Air Concentrations for the Oasis Resident
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Carcinogenic Risk-basedConcentration (mg/M3)Non-carcinogenic Risk-basedConcentration (mg/M3)Final Risk-basedConcentration (mg/M3)
Final Risk-basedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
ACETALDEHYDE 75-07-0 V 2.24E-02 1.90E-01 2.24E-02 C
ACETOCHLOR 34256-82-1 SV 1.48E+00 1.48E+00 NC
ACETONE 67-64-1 V 6.67E+01 6.67E+01 NC
ACETONITRILE 75-05-8 V 1.26E+00 1.26E+00 NC
ACETOPHENONE 98-86-2 V 7.41E+00 7.41E+00 NC
ACROLEIN 107-02-8 V 4.22E-04 4.22E-04 NC
ACRYLAMIDE 79-06-1 SV 3.84E-05 1.48E-02 3.84E-05 C
ACRYLONITRILE 107-13-1 V 7.20E-04 4.22E-02 7.20E-04 C
ALACHLOR 15972-60-8 SV 2.16E-03 7.41E-01 2.16E-03 C
ALAR 1596-84-5 SV 1.11E+01 1.11E+01 NC
ALDICARB 116-06-3 SV 7.41E-02 7.41E-02 NC
ALDICARB SULFONE 1646-88-4 SV 7.41E-02 7.41E-02 NC
ALDRIN 309-00-2 SV 1.02E-05 2.22E-03 1.02E-05 C
ALLYL CHLORIDE 107-05-1 V 2.12E-02 2.12E-02 NC
ALUMINUM 7429-90-5 M 7.41E-02 7.41E-02 NC
AMINODINITROTOLUENES NA SV 1.48E-01 1.48E-01 NC
AMMONIA 7664-41-7 V 2.12E+00 2.12E+00 NC
ANILINE 62-53-3 SV 3.03E-02 2.15E-02 2.15E-02 NC
ANTIMONY 7440-36-0 M 2.96E-02 2.96E-02 NC
ANTIMONY TRIOXIDE 1309-64-4 M 4.22E-03 4.22E-03 NC
ARSENIC 7440-38-2 M 1.14E-05 2.22E-02 1.14E-05 C
ARSINE 7784-42-1 V 1.04E-03 1.04E-03 NC
ASSURE 76578-14-8 SV 6.67E-01 6.67E-01 NC
ATRAZINE 1912-24-9 SV 7.85E-04 2.59E+00 7.85E-04 C
BARIUM 7440-39-3 M 1.04E-02 1.04E-02 NC
BAYGON 114-26-1 SV 2.96E-01 2.96E-01 NC
BAYTHROID 68359-37-5 SV 1.85E+00 1.85E+00 NC
BENTAZON 25057-89-0 SV 2.22E+00 2.22E+00 NC
BENZALDEHYDE 100-52-7 SV 7.41E+00 7.41E+00 NC
BENZENE 71-43-2 V 6.40E-03 6.37E-01 6.40E-03 C
BENZENETHIOL 108-98-5 V 7.41E-04 7.41E-04 NC
BENZIDINE 92-87-5 SV 7.51E-07 2.22E-01 7.51E-07 C
BENZOIC ACID 65-85-0 SV 2.96E+02 2.96E+02 NC
BENZYL ALCOHOL 100-51-6 SV 2.22E+01 2.22E+01 NC
BENZYL CHLORIDE 100-44-7 V 1.02E-03 1.48E-01 1.02E-03 C
BERYLLIUM 7440-41-7 M 2.06E-05 4.22E-04 2.06E-05 C
BIPHENYL 92-52-4 V 3.70E+00 3.70E+00 NC
BIS(2-CHLOROETHYL)ETHER 111-44-4 V 1.57E-04 1.57E-04 C
BIS(2-CHLOROISOPROPYL)ETHER 108-60-1 V 4.94E-03 2.96E+00 4.94E-03 C
BIS(CHLOROMETHYL)ETHER 542-88-1 V 7.85E-07 7.85E-07 C
BIS(2-ETHYLHEXYL)PHTHALATE 117-81-7 SV 1.23E-02 1.48E+00 1.23E-02 C
BORON 7440-42-8 M 4.22E-01 4.22E-01 NC
BROMOBENZENE 108-86-1 V 2.22E-01 2.22E-01 NC
BROMODICHLOROMETHANE 75-27-4 V 2.79E-03 1.48E+00 2.79E-03 C
BROMOETHENE 593-60-2 V 1.57E-03 6.37E-02 1.57E-03 C
BROMOFORM 75-25-2 SV 4.43E-02 1.48E+00 4.43E-02 C
BROMOMETHANE 74-83-9 V 1.04E-01 1.04E-01 NC
BROMOPHOS 2104-96-3 SV 3.70E-01 3.70E-01 NC
1,3-BUTADIENE 106-99-0 V 1.73E-03 4.22E-02 1.73E-03 C
1-BUTANOL 71-36-3 SV 7.41E+00 7.41E+00 NC
BUTYLBENZYLPHTHALATE 85-68-7 SV 9.09E-02 1.48E+01 9.09E-02 C
CADMIUM-FOOD 7440-43-9 M 2.74E-05 4.22E-03 2.74E-05 C
CAPROLACTAM 105-60-2 SV 3.70E+01 3.70E+01 NC
CARBARYL 63-25-2 SV 7.41E+00 7.41E+00 NC
CARBON DISULFIDE 75-15-0 V 1.48E+01 1.48E+01 NC
CARBON TETRACHLORIDE 56-23-5 V 3.26E-03 3.70E+00 3.26E-03 C
CARBOSULFAN 55285-14-8 SV 7.41E-01 7.41E-01 NC
CHLORAL HYDRATE 302-17-0 SV 7.41E+00 7.41E+00 NC
CHLORANIL 118-75-2 SV 4.32E-04 4.32E-04 C
CHLORDANE 57-74-9 SV 4.94E-04 1.48E-02 4.94E-04 C
JMS/E082005001SLC PAGE 1 OF 7
Appendix F
Risk-Based Air Concentrations for the Oasis Resident
Attachment 10B- Thermal Treatment Unit Human Health Risk Assessment
Carcinogenic Risk-basedConcentration (mg/M3)Non-carcinogenic Risk-basedConcentration (mg/M3)Final Risk-basedConcentration (mg/M3)
Final Risk-basedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
CHLORINE 7782-50-5 V 4.22E-03 4.22E-03 NC
CHLORINE DIOXIDE 10049-04-4 V 4.22E-03 4.22E-03 NC
CHLOROACETIC ACID 79-11-8 SV 1.48E-01 1.48E-01 NC
4-CHLOROANILINE 106-47-8 SV 3.20E-03 2.96E-01 3.20E-03 C
CHLOROBENZENE 108-90-7 V 1.26E+00 1.26E+00 NC
2-CHLORO-1,3-BUTADIENE 126-99-8 V 1.48E-01 1.48E-01 NC
1-CHLORO-1,1-DIFLUOROETHANE 75-68-3 V 1.04E+03 1.04E+03 NC
CHLORODIFLUOROMETHANE 75-45-6 V 1.04E+03 1.04E+03 NC
CHLOROETHANE 75-00-3 V 5.96E-02 2.15E+02 5.96E-02 C
CHLOROFORM 67-66-3 V 2.13E-03 1.04E+00 2.13E-03 C
CHLOROMETHANE 74-87-3 V 1.93E+00 1.93E+00 NC
4-CHLORO-2-METHYLANILINE 95-69-2 SV 2.98E-04 2.98E-04 C
BETA-CHLORONAPHTHALENE 91-58-7 V 5.92E+00 5.92E+00 NC
O-CHLORONITROBENZENE 88-73-3 V 1.78E-02 1.48E-03 1.48E-03 NC
P-CHLORONITROBENZENE 100-00-5 V 2.58E-02 1.26E-02 1.26E-02 NC
2-CHLOROPHENOL 95-57-8 V 3.70E-01 3.70E-01 NC
2-CHLOROPROPANE 75-29-6 V 2.15E+00 2.15E+00 NC
O-CHLOROTOLUENE 95-49-8 V 1.48E+00 1.48E+00 NC
CHLORPYRIFOS 2921-88-2 SV 2.22E-01 2.22E-01 NC
CHLORPYRIFOS-METHYL 5598-13-0 SV 7.41E-01 7.41E-01 NC
CHROMIUM 7440-47-3 M 1.11E+02 1.11E+02 NC
CHROMIUM III 16065-83-1 M 1.11E+02 1.11E+02 NC
CHROMIUM VI 18540-29-9 M 4.21E-06 2.22E-03 4.21E-06 C
COBALT 7440-48-4 M 1.76E-05 4.22E-04 1.76E-05 C
COKE OVEN EMISSIONS (COAL TAR) 8007-45-2 SV 7.85E-05 7.85E-05 C
COPPER 7440-50-8 M 2.96E+00 2.96E+00 NC
CUMENE 98-82-8 V 8.15E+00 8.15E+00 NC
CYANIDE (FREE) 57-12-5 M 1.48E+00 1.48E+00 NC
CALCIUM CYANIDE 592-01-8 M 2.96E+00 2.96E+00 NC
COPPER CYANIDE 544-92-3 M 3.70E-01 3.70E-01 NC
CYANOGEN 460-19-5 V 2.96E+00 2.96E+00 NC
HYDROGEN CYANIDE 74-90-8 V 6.37E-02 6.37E-02 NC
POTASSIUM CYANIDE 151-50-8 M 3.70E+00 3.70E+00 NC
POTASSIUM SILVER CYANIDE 506-61-6 M 1.48E+01 1.48E+01 NC
SILVER CYANIDE 506-64-9 M 7.41E+00 7.41E+00 NC
SODIUM CYANIDE 143-33-9 M 2.96E+00 2.96E+00 NC
THIOCYANATE NA M 7.41E-03 7.41E-03 NC
ZINC CYANIDE 557-21-1 M 3.70E+00 3.70E+00 NC
CYCLOHEXANE 110-82-7 V 1.26E+02 1.26E+02 NC
CYCLOHEXANONE 108-94-1 SV 3.70E+02 3.70E+02 NC
CYHALOTHRIN/KARATE 68085-85-8 SV 3.70E-01 3.70E-01 NC
CYPERMETHRIN 52315-07-8 SV 7.41E-01 7.41E-01 NC
DACTHAL 1861-32-1 SV 7.41E-01 7.41E-01 NC
DALAPON 75-99-0 SV 2.22E+00 2.22E+00 NC
DDD 72-54-8 SV 7.20E-04 1.48E-01 7.20E-04 C
DDE 72-55-9 SV 5.08E-04 5.08E-04 C
DDT 50-29-3 SV 5.08E-04 3.70E-02 5.08E-04 C
DIAZINON 333-41-5 SV 6.67E-02 6.67E-02 NC
DIBENZOFURAN 132-64-9 V 1.48E-01 1.48E-01 NC
1,4-DIBROMOBENZENE 106-37-6 SV 7.41E-01 7.41E-01 NC
DIBROMOCHLOROMETHANE 124-48-1 V 2.06E-03 1.48E+00 2.06E-03 C
1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 V 7.20E-02 4.22E-03 4.22E-03 NC
1,2-DIBROMOETHANE 106-93-4 V 8.64E-05 1.93E-01 8.64E-05 C
DIBUTYLPHTHALATE 84-74-2 SV 7.41E+00 7.41E+00 NC
DICAMBA 1918-00-9 SV 2.22E+00 2.22E+00 NC
1,2-DICHLOROBENZENE 95-50-1 V 2.96E+00 2.96E+00 NC
1,3-DICHLOROBENZENE 541-73-1 V 2.22E-01 2.22E-01 NC
1,4-DICHLOROBENZENE 106-46-7 V 7.85E-03 1.70E+01 7.85E-03 C
3,3'-DICHLOROBENZIDINE 91-94-1 SV 3.84E-04 3.84E-04 C
DICHLORODIFLUOROMETHANE 75-71-8 V 3.70E+00 3.70E+00 NC
JMS/E082005001SLC PAGE 2 OF 7
Appendix F
Risk-Based Air Concentrations for the Oasis Resident
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Carcinogenic Risk-basedConcentration (mg/M3)Non-carcinogenic Risk-basedConcentration (mg/M3)Final Risk-basedConcentration (mg/M3)
Final Risk-basedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
1,1-DICHLOROETHANE 75-34-3 V 1.04E+01 1.04E+01 NC
1,2-DICHLOROETHANE 107-06-2 V 1.90E-03 5.18E+01 1.90E-03 C
1,1-DICHLOROETHENE 75-35-4 V 4.44E+00 4.44E+00 NC
CIS-1,2-DICHLOROETHENE 156-59-2 V 7.41E-01 7.41E-01 NC
TRANS-1,2-DICHLOROETHENE 156-60-5 V 1.26E+00 1.26E+00 NC
TOTAL 1,2-DICHLOROETHENE 540-59-0 V 6.67E-01 6.67E-01 NC
2,4-DICHLOROPHENOL 120-83-2 SV 2.22E-01 2.22E-01 NC
2,4-D 94-75-7 SV 7.41E-01 7.41E-01 NC
4-(2,4-DICHLOROPHENOXY)BUTYRIC ACID 94-82-6 SV 5.92E-01 5.92E-01 NC
1,2-DICHLOROPROPANE 78-87-5 V 2.54E-03 8.44E-02 2.54E-03 C
1,3-DICHLOROPROPANE 142-28-9 V 1.48E+00 1.48E+00 NC
2,3-DICHLOROPROPANOL 616-23-9 SV 2.22E-01 2.22E-01 NC
1,3-DICHLOROPROPENE 542-75-6 V 1.73E-02 4.23E-01 1.73E-02 C
DICHLORVOS 62-73-7 SV 5.96E-04 1.06E-02 5.96E-04 C
DIELDRIN 60-57-1 SV 1.08E-05 3.70E-03 1.08E-05 C
DIESEL EMISSIONS NA SV 1.04E-01 1.04E-01 NC
DIETHYLPHTHALATE 84-66-2 SV 5.92E+01 5.92E+01 NC
DIETHYLENE GLYCOL, MONOBUTYL ETHER 112-34-5 SV 4.22E-01 4.22E-01 NC
DIETHYLENE GLYCOL, MONOETHYL ETHER 111-90-0 SV 6.37E-02 6.37E-02 NC
DI(2-ETHYLHEXYL)ADIPATE 103-23-1 SV 1.44E-01 4.44E+01 1.44E-01 C
DIETHYLSTILBESTROL 56-53-1 SV 3.68E-08 3.68E-08 C
DIFENZOQUAT (AVENGE)43222-48-6 SV 5.92E+00 5.92E+00 NC
1,1-DIFLUOROETHANE 75-37-6 V 8.15E+02 8.15E+02 NC
DIISOPROPYL METHYLPHOSPHONATE (DIMP)1445-75-6 SV 5.92E+00 5.92E+00 NC
3,3'-DIMETHOXYBENZIDINE 119-90-4 SV 1.23E-02 1.23E-02 C
N,N-DIMETHYLANILINE 121-69-7 SV 1.48E-01 1.48E-01 NC
3,3'-DIMETHYLBENZIDINE 119-93-7 SV 7.51E-05 7.51E-05 C
2,4-DIMETHYLPHENOL 105-67-9 SV 1.48E+00 1.48E+00 NC
2,6-DIMETHYLPHENOL 576-26-1 SV 4.44E-02 4.44E-02 NC
3,4-DIMETHYLPHENOL 95-65-8 SV 7.41E-02 7.41E-02 NC
DIMETHYLPHTHALATE 131-11-3 SV 7.41E+02 7.41E+02 NC
1,2-DINITROBENZENE 528-29-0 SV 7.41E-03 7.41E-03 NC
1,3-DINITROBENZENE 99-65-0 SV 7.41E-03 7.41E-03 NC
1,4-DINITROBENZENE 100-25-4 SV 7.41E-03 7.41E-03 NC
4,6-DINITRO-O-CYCLOHEXYL PHENOL 131-89-5 SV 1.48E-01 1.48E-01 NC
4,6-DINITRO-2-METHYLPHENOL 534-52-1 SV 7.41E-03 7.41E-03 NC
2,4-DINITROPHENOL 51-28-5 SV 1.48E-01 1.48E-01 NC
DINITROTOLUENE MIX NA SV 2.54E-04 2.54E-04 C
2,4-DINITROTOLUENE 121-14-2 SV 1.48E-01 1.48E-01 NC
2,6-DINITROTOLUENE 606-20-2 SV 7.41E-02 7.41E-02 NC
DINOSEB 88-85-7 SV 7.41E-02 7.41E-02 NC
DIOCTYLPHTHALATE 117-84-0 SV 2.96E+00 2.96E+00 NC
1,4-DIOXANE 123-91-1 SV 1.57E-02 1.57E-02 C
DIPHENYLAMINE 122-39-4 SV 1.85E+00 1.85E+00 NC
1,2-DIPHENYLHYDRAZINE 122-66-7 SV 2.16E-04 2.16E-04 C
DIQUAT 85-00-7 SV 1.63E-01 1.63E-01 NC
DISULFOTON 298-04-4 SV 2.96E-03 2.96E-03 NC
1,4-DITHIANE 505-29-3 SV 7.41E-01 7.41E-01 NC
DIURON 330-54-1 SV 1.48E-01 1.48E-01 NC
ENDOSULFAN 115-29-7 SV 4.44E-01 4.44E-01 NC
ENDRIN 72-20-8 SV 2.22E-02 2.22E-02 NC
EPICHLOROHYDRIN 106-89-8 V 4.11E-02 2.12E-02 2.12E-02 NC
ETHION 563-12-2 SV 3.70E-02 3.70E-02 NC
ETHYL ACETATE 141-78-6 V 6.67E+01 6.67E+01 NC
ETHYLBENZENE 100-41-4 V 2.15E+01 2.15E+01 NC
ETHYLENE DIAMINE 107-15-3 SV 6.67E+00 6.67E+00 NC
ETHYLENE GLYCOL 107-21-1 SV 1.48E+02 1.48E+02 NC
ETHYLENE GLYCOL, MONOBUTYL ETHER 111-76-2 SV 2.74E+02 2.74E+02 NC
ETHYLENE OXIDE 75-21-8 V 4.94E-04 4.94E-04 C
ETHYL ETHER 60-29-7 V 1.48E+01 1.48E+01 NC
JMS/E082005001SLC PAGE 3 OF 7
Appendix F
Risk-Based Air Concentrations for the Oasis Resident
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Carcinogenic Risk-basedConcentration (mg/M3)Non-carcinogenic Risk-basedConcentration (mg/M3)Final Risk-basedConcentration (mg/M3)
Final Risk-basedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
FENAMIPHOS 22224-92-6 SV 1.85E-02 1.85E-02 NC
FLUOMETURON 2164-17-2 SV 9.63E-01 9.63E-01 NC
FLUORINE 7782-41-4 M 4.44E+00 4.44E+00 NC
FOMESAFEN 72178-02-0 SV 9.09E-04 9.09E-04 C
FONOFOS 944-22-9 SV 1.48E-01 1.48E-01 NC
FORMALDEHYDE 50-00-0 SV 3.84E-03 1.48E+01 3.84E-03 C
FURAN 110-00-9 V 7.41E-02 7.41E-02 NC
FURFURAL 98-01-1 SV 7.41E-01 7.41E-01 NC
GLYPHOSATE 1071-83-6 SV 7.41E+00 7.41E+00 NC
HEPTACHLOR 76-44-8 SV 3.84E-05 3.70E-02 3.84E-05 C
HEPTACHLOR EPOXIDE 1024-57-3 SV 1.90E-05 9.63E-04 1.90E-05 C
HEXABROMOBENZENE 87-82-1 SV 1.48E-01 1.48E-01 NC
HEXACHLOROBENZENE 118-74-1 SV 1.08E-04 5.92E-02 1.08E-04 C
HEXACHLOROBUTADIENE 87-68-3 SV 2.22E-03 1.48E-02 2.22E-03 C
ALPHA-HCH 319-84-6 SV 2.74E-05 2.74E-05 C
BETA-HCH 319-85-7 SV 9.60E-05 9.60E-05 C
GAMMA-HCH (LINDANE)58-89-9 SV 1.33E-04 2.22E-02 1.33E-04 C
TECHNICAL HCH 608-73-1 SV 9.60E-05 9.60E-05 C
HEXACHLOROCYCLOPENTADIENE 77-47-4 SV 4.22E-03 4.22E-03 NC
HEXACHLORODIBENZODIOXIN MIX 19408-74-3 SV 3.80E-08 3.80E-08 C
HEXACHLOROETHANE 67-72-1 SV 1.23E-02 7.41E-02 1.23E-02 C
HEXACHLOROPHENE 70-30-4 SV 2.22E-02 2.22E-02 NC
1,6-HEXAMETHYLENE DIISOCYANATE 822-06-0 SV 2.15E-04 2.15E-04 NC
HEXANE 110-54-3 V 4.23E+00 4.23E+00 NC
HMX 2691-41-0 SV 3.70E+00 3.70E+00 NC
HYDRAZINE 302-01-2 V 1.02E-05 1.02E-05 C
HYDROGEN CHLORIDE 7647-01-0 V 4.22E-01 4.22E-01 NC
HYDROGEN SULFIDE 7783-06-4 V 4.22E-02 4.22E-02 NC
HYDROQUINONE 123-31-9 SV 3.09E-03 2.96E+00 3.09E-03 C
IRON 7439-89-6 M 2.22E+01 2.22E+01 NC
ISOBUTANOL 78-83-1 V 2.22E+01 2.22E+01 NC
ISOPHORONE 78-59-1 SV 1.82E-01 1.48E+01 1.82E-01 C
TETRAETHYLLEAD 78-00-2 V 7.41E-06 7.41E-06 NC
KEPONE 143-50-0 SV 2.16E-05 1.48E-02 2.16E-05 C
LITHIUM 7439-93-2 M 1.48E+00 1.48E+00 NC
MALATHION 121-75-5 SV 1.48E+00 1.48E+00 NC
MALEIC ANHYDRIDE 108-31-6 SV 7.41E+00 7.41E+00 NC
MANGANESE-FOOD 7439-96-5 M 1.06E-03 1.06E-03 NC
MEPHOSFOLAN 950-10-7 SV 6.67E-03 6.67E-03 NC
MEPIQUAT CHLORIDE 24307-26-4 SV 2.22E+00 2.22E+00 NC
MERCURIC CHLORIDE 7487-94-7 M 2.22E-02 2.22E-02 NC
MERCURY (elemental)7439-97-6 M 6.37E-03 6.37E-03 NC
METHYLMERCURY 22967-92-6 V 7.41E-03 7.41E-03 NC
METHANOL 67-56-1 V 3.70E+01 3.70E+01 NC
METHIDATHION 950-37-8 SV 7.41E-02 7.41E-02 NC
METHOXYCHLOR 72-43-5 SV 3.70E-01 3.70E-01 NC
METHYL ACETATE 79-20-9 V 7.41E+01 7.41E+01 NC
METHYL ACRYLATE 96-33-3 V 2.22E+00 2.22E+00 NC
2-METHYLANILINE 95-53-4 SV 7.20E-04 7.20E-04 C
4-(2-METHYL-4-CHLOROPHENOXY) BUTYRIC ACID 94-81-5 SV 7.41E-01 7.41E-01 NC
2-METHYL-4-CHLOROPHENOXYACETIC ACID (MCPA)94-74-6 SV 3.70E-02 3.70E-02 NC
2-(2-METHYL-4-CHLOROPHENOXY)PROPIONIC ACID (MCPP)93-65-2 SV 7.41E-02 7.41E-02 NC
METHYLCYCLOHEXANE 108-87-2 V 6.37E+01 6.37E+01 NC
METHYLENE BROMIDE 74-95-3 V 7.41E-01 7.41E-01 NC
METHYLENE CHLORIDE 75-09-2 V 1.05E-01 2.22E+01 1.05E-01 C
4,4'-METHYLENE BIS(2-CHLOROANILINE)101-14-4 SV 1.33E-03 5.18E-02 1.33E-03 C
4,4'-METHYLENE BIS(N,N'-DIMETHYL)ANILINE 101-61-1 SV 3.76E-03 3.76E-03 C
4,4'-METHYLENEDIPHENYL ISOCYANATE 101-68-8 SV 1.26E-02 1.26E-02 NC
METHYL ETHYL KETONE (2-BUTANONE)78-93-3 V 1.04E+02 1.04E+02 NC
METHYL ISOBUTYL KETONE (4-METHYL-2-PENTANONE)108-10-1 V 6.37E+01 6.37E+01 NC
JMS/E082005001SLC PAGE 4 OF 7
Appendix F
Risk-Based Air Concentrations for the Oasis Resident
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Carcinogenic Risk-basedConcentration (mg/M3)Non-carcinogenic Risk-basedConcentration (mg/M3)Final Risk-basedConcentration (mg/M3)
Final Risk-basedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
METHYL METHACRYLATE 80-62-6 V 1.48E+01 1.48E+01 NC
METHYL PARATHION 298-00-0 SV 1.85E-02 1.85E-02 NC
2-METHYLPHENOL 95-48-7 SV 3.70E+00 3.70E+00 NC
3-METHYLPHENOL 108-39-4 SV 3.70E+00 3.70E+00 NC
4-METHYLPHENOL 106-44-5 SV 3.70E-01 3.70E-01 NC
METHYLSTYRENE MIX 25013-15-4 V 7.41E-01 7.41E-01 NC
ALPHA-METHYLSTYRENE 98-83-9 V 5.18E+00 5.18E+00 NC
METHYL TERT-BUTYL ETHER 1634-04-4 V 4.32E-02 6.35E+01 4.32E-02 C
METOLACHLOR (DUAL)51218-45-2 SV 1.11E+01 1.11E+01 NC
MIREX 2385-85-5 SV 1.48E-02 1.48E-02 NC
MOLYBDENUM 7439-98-7 M 3.70E-01 3.70E-01 NC
MONOCHLORAMINE 10599-90-3 SV 7.41E+00 7.41E+00 NC
NALED 300-76-5 SV 1.48E-01 1.48E-01 NC
NICKEL REFINERY DUST NA M 2.06E-04 2.06E-04 C
NICKEL 7440-02-0 M 1.48E+00 1.48E+00 NC
NITRATE 14797-55-8 M 1.18E+02 1.18E+02 NC
NITRITE 14797-65-0 M 7.41E+00 7.41E+00 NC
2-NITROANILINE 88-74-4 SV 2.22E-03 2.22E-03 NC
3-NITROANILINE 99-09-2 SV 8.64E-03 2.22E-02 8.64E-03 C
4-NITROANILINE 100-01-6 SV 8.64E-03 7.41E-02 8.64E-03 C
NITROBENZENE 98-95-3 V 4.44E-02 4.44E-02 NC
NITROGLYCERIN 55-63-0 SV 1.23E-02 1.23E-02 C
NITROGUANIDINE 556-88-7 SV 7.41E+00 7.41E+00 NC
2-NITROPROPANE 79-46-9 V 1.84E-05 4.22E-01 1.84E-05 C
N-NITROSO-DI-N-BUTYLAMINE 924-16-3 V 3.09E-05 3.09E-05 C
N-NITROSODIETHANOLAMINE 1116-54-7 SV 6.17E-05 6.17E-05 C
N-NITROSODIETHYLAMINE 55-18-5 SV 1.15E-06 1.15E-06 C
N-NITROSODIMETHYLAMINE 62-75-9 SV 3.39E-06 5.92E-04 3.39E-06 C
N-NITROSODIPHENYLAMINE 86-30-6 SV 3.53E-02 1.48E+00 3.53E-02 C
N-NITROSODIPROPYLAMINE 621-64-7 SV 2.47E-05 2.47E-05 C
N-NITROSO-N-METHYLETHYLAMINE 10595-95-6 SV 7.85E-06 7.85E-06 C
N-NITROSOPYRROLIDINE 930-55-2 SV 8.23E-05 8.23E-05 C
M-NITROTOLUENE 99-08-1 V 1.48E+00 1.48E+00 NC
O-NITROTOLUENE 88-72-2 V 7.51E-04 7.41E-01 7.51E-04 C
P-NITROTOLUENE 99-99-0 V 1.02E-02 7.41E-01 1.02E-02 C
NUSTAR 85509-19-9 SV 5.18E-02 5.18E-02 NC
ORYZALIN 19044-88-3 SV 3.70E+00 3.70E+00 NC
OXADIAZON 19666-30-9 SV 3.70E-01 3.70E-01 NC
OXAMYL 23135-22-0 SV 1.85E+00 1.85E+00 NC
OXYFLUORFEN 42874-03-3 SV 2.22E-01 2.22E-01 NC
PARAQUAT DICHLORIDE 1910-42-5 SV 3.33E-01 3.33E-01 NC
PARATHION 56-38-2 SV 4.44E-01 4.44E-01 NC
PENTACHLOROBENZENE 608-93-5 SV 5.92E-02 5.92E-02 NC
PENTACHLORONITROBENZENE 82-68-8 SV 6.65E-04 2.22E-01 6.65E-04 C
PENTACHLOROPHENOL 87-86-5 SV 1.44E-03 2.22E+00 1.44E-03 C
Pentaerythritoltetranitrate 78-11-5 SV 1.57E-03 2.22E-01 1.57E-03 C
PERCHLORATE 7601-90-3 M 5.18E-02 5.18E-02 NC
PERMETHRIN 52645-53-1 SV 3.70E+00 3.70E+00 NC
PHENOL 108-95-2 SV 2.22E+01 2.22E+01 NC
M-PHENYLENEDIAMINE 108-45-2 SV 4.44E-01 4.44E-01 NC
O-PHENYLENEDIAMINE 95-54-5 SV 3.68E-03 3.68E-03 C
P-PHENYLENEDIAMINE 106-50-3 SV 1.41E+01 1.41E+01 NC
PHOSPHINE 7803-51-2 SV 6.37E-03 6.37E-03 NC
PHOSPHORIC ACID 7664-38-2 M 2.15E-01 2.15E-01 NC
PHOSPHORUS (WHITE)7723-14-0 M 1.48E-03 1.48E-03 NC
PHTHALIC ANHYDRIDE 85-44-9 SV 2.54E+00 2.54E+00 NC
POLYBROMINATED BIPHENYLS NA SV 1.94E-05 5.18E-04 1.94E-05 C
POLYCHLORINATED BIPHENYLS 1336-36-3 SV 8.64E-05 8.64E-05 C
AROCLOR-1016 12674-11-2 SV 2.47E-03 5.18E-03 2.47E-03 C
AROCLOR-1221 11104-28-2 SV 8.64E-05 8.64E-05 C
JMS/E082005001SLC PAGE 5 OF 7
Appendix F
Risk-Based Air Concentrations for the Oasis Resident
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Carcinogenic Risk-basedConcentration (mg/M3)Non-carcinogenic Risk-basedConcentration (mg/M3)Final Risk-basedConcentration (mg/M3)
Final Risk-basedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
AROCLOR-1232 11141-16-5 SV 8.64E-05 8.64E-05 C
AROCLOR-1242 53469-21-9 SV 8.64E-05 8.64E-05 C
AROCLOR-1248 12672-29-6 SV 8.64E-05 8.64E-05 C
AROCLOR-1254 11097-69-1 SV 8.64E-05 1.48E-03 8.64E-05 C
AROCLOR-1260 11096-82-5 SV 8.64E-05 8.64E-05 C
POLYCHLORINATED TERPHENYLS 61788-33-8 SV 3.84E-05 3.84E-05 C
POLYNUCLEAR AROMATIC HYDROCARBONS:NA SV
ACENAPHTHENE 83-32-9 V 4.44E+00 4.44E+00 NC
ANTHRACENE 120-12-7 V 2.22E+01 2.22E+01 NC
BENZ[A]ANTHRACENE 56-55-3 SV 2.37E-04 2.37E-04 C
BENZO[B]FLUORANTHENE 205-99-2 SV 2.37E-04 2.37E-04 C
BENZO[K]FLUORANTHENE 207-08-9 SV 2.37E-03 2.37E-03 C
BENZO[A]PYRENE 50-32-8 SV 5.57E-05 5.57E-05 C
CARBAZOLE 86-74-8 SV 8.64E-03 8.64E-03 C
CHRYSENE 218-01-9 SV 2.37E-02 2.37E-02 C
DIBENZ[A,H]ANTHRACENE 53-70-3 SV 2.37E-05 2.37E-05 C
FLUORANTHENE 206-44-0 SV 2.96E+00 2.96E+00 NC
FLUORENE 86-73-7 V 2.96E+00 2.96E+00 NC
INDENO[1,2,3-C,D]PYRENE 193-39-5 SV 2.37E-04 2.37E-04 C
2-METHYLNAPHTHALENE 91-57-6 V 2.96E-01 2.96E-01 NC
NAPHTHALENE 91-20-3 V 6.67E-02 6.67E-02 NC
PYRENE 129-00-0 V 2.22E+00 2.22E+00 NC
PROMETON 1610-18-0 SV 1.11E+00 1.11E+00 NC
PROMETRYN 7287-19-6 SV 2.96E-01 2.96E-01 NC
PROPACHLOR 1918-16-7 SV 9.63E-01 9.63E-01 NC
PROPARGITE 2312-35-8 SV 1.48E+00 1.48E+00 NC
PROPYLENE GLYCOL 57-55-6 SV 6.37E-02 6.37E-02 NC
PROPYLENE GLYCOL, MONOETHYL ETHER 52125-53-8 SV 5.18E+01 5.18E+01 NC
PROPYLENE GLYCOL, MONOMETHYL ETHER 107-98-2 SV 4.22E+01 4.22E+01 NC
PURSUIT 81335-77-5 SV 1.85E+01 1.85E+01 NC
PYRIDINE 110-86-1 SV 7.41E-02 7.41E-02 NC
QUINOLINE 91-22-5 SV 5.76E-05 5.76E-05 C
RDX 121-82-4 SV 1.57E-03 2.22E-01 1.57E-03 C
RESMETHRIN 10453-86-8 SV 2.22E+00 2.22E+00 NC
ROTENONE 83-79-4 SV 2.96E-01 2.96E-01 NC
SELENIUM 7782-49-2 M 3.70E-01 3.70E-01 NC
SILVER 7440-22-4 M 3.70E-01 3.70E-01 NC
SIMAZINE 122-34-9 SV 1.44E-03 3.70E-01 1.44E-03 C
SODIUM DIETHYLDITHIOCARBAMATE 148-18-5 SV 6.40E-04 2.22E+00 6.40E-04 C
STRONTIUM, STABLE 7440-24-6 M 4.44E+01 4.44E+01 NC
STRYCHNINE 57-24-9 SV 2.22E-02 2.22E-02 NC
STYRENE 100-42-5 V 2.12E+01 2.12E+01 NC
2,3,7,8-TETRACHLORODIBENZODIOXIN 1746-01-6 SV 1.15E-09 1.15E-09 C
1,2,4,5-TETRACHLOROBENZENE 95-94-3 SV 2.22E-02 2.22E-02 NC
1,1,1,2-TETRACHLOROETHANE 630-20-6 V 6.65E-03 2.22E+00 6.65E-03 C
1,1,2,2-TETRACHLOROETHANE 79-34-5 V 8.64E-04 4.44E+00 8.64E-04 C
TETRACHLOROETHENE 127-18-4 V 8.64E-03 1.04E+01 8.64E-03 C
2,3,4,6-TETRACHLOROPHENOL 58-90-2 SV 2.22E+00 2.22E+00 NC
P,A,A,A-TETRACHLOROTOLUENE 5216-25-1 SV 8.64E-06 8.64E-06 C
1,1,1,2-TETRAFLUOROETHANE 811-97-2 V 1.70E+03 1.70E+03 NC
TETRAHYDROFURAN 109-99-9 SV 2.54E-02 6.37E+00 2.54E-02 C
TETRYL 479-45-8 SV 2.96E-01 2.96E-01 NC
THALLIUM 7440-28-0 M 5.18E-03 5.18E-03 NC
THALLIUM ACETATE 563-68-8 M 6.67E-03 6.67E-03 NC
THALLIUM CARBONATE 6533-73-9 M 5.92E-03 5.92E-03 NC
THALLIUM CHLORIDE 7791-12-0 M 5.92E-03 5.92E-03 NC
THALLIUM NITRATE 10102-45-1 M 6.67E-03 6.67E-03 NC
THALLIUM SULFATE (2:1)7446-18-6 M 5.92E-03 5.92E-03 NC
THIOBENCARB 28249-77-6 SV 7.41E-01 7.41E-01 NC
TIN 7440-31-5 M 4.44E+01 4.44E+01 NC
JMS/E082005001SLC PAGE 6 OF 7
Appendix F
Risk-Based Air Concentrations for the Oasis Resident
Attachment 10B - Thermal Treatment Unit Human Health Risk Assessment
Carcinogenic Risk-basedConcentration (mg/M3)Non-carcinogenic Risk-basedConcentration (mg/M3)Final Risk-basedConcentration (mg/M3)
Final Risk-basedConcentration(mg/M3)Chemical CAS No. Group Inhalation Inhalation Final Basis
TITANIUM 7440-32-6 M 6.37E-01 6.37E-01 NC
TITANIUM DIOXIDE 13463-67-7 M 6.37E-01 6.37E-01 NC
TOLUENE 108-88-3 V 8.44E+00 8.44E+00 NC
TOLUENE-2,4-DIAMINE 95-80-7 SV 5.40E-05 5.40E-05 C
TOLUENE-2,5-DIAMINE 95-70-5 SV 4.44E+01 4.44E+01 NC
TOLUENE-2,6-DIAMINE 823-40-5 SV 1.48E+01 1.48E+01 NC
P-TOLUIDINE 106-49-0 SV 9.09E-04 9.09E-04 C
TOXAPHENE 8001-35-2 SV 1.57E-04 1.57E-04 C
1,2,4-TRIBROMOBENZENE 615-54-3 SV 3.70E-01 3.70E-01 NC
TRIBUTYLTIN OXIDE 56-35-9 SV 2.22E-02 2.22E-02 NC
2,4,6-TRICHLOROANILINE 634-93-5 SV 5.08E-03 5.08E-03 C
1,2,4-TRICHLOROBENZENE 120-82-1 V 7.41E-02 7.41E-02 NC
1,1,1-TRICHLOROETHANE 71-55-6 V 4.67E+01 4.67E+01 NC
1,1,2-TRICHLOROETHANE 79-00-5 V 3.09E-03 2.96E-01 3.09E-03 C
TRICHLOROETHENE 79-01-6 V 4.32E-04 7.41E-01 4.32E-04 C
TRICHLOROFLUOROMETHANE 75-69-4 V 1.48E+01 1.48E+01 NC
2,4,5-TRICHLOROPHENOL 95-95-4 SV 7.41E+00 7.41E+00 NC
2,4,6-TRICHLOROPHENOL 88-06-2 SV 1.73E-02 1.73E-02 C
2,4,5-T 93-76-5 SV 7.41E-01 7.41E-01 NC
2-(2,4,5-TRICHLOROPHENOXY)PROPIONIC ACID 93-72-1 SV 5.92E-01 5.92E-01 NC
1,1,2-TRICHLOROPROPANE 598-77-6 V 3.70E-01 3.70E-01 NC
1,2,3-TRICHLOROPROPANE 96-18-4 V 8.64E-05 1.04E-01 8.64E-05 C
1,2,3-TRICHLOROPROPENE 96-19-5 V 2.22E-02 2.22E-02 NC
1,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE 76-13-1 V 6.37E+02 6.37E+02 NC
1,2,4-TRIMETHYLBENZENE 95-63-6 V 1.26E-01 1.26E-01 NC
1,3,5-TRIMETHYLBENZENE 108-67-8 V 1.26E-01 1.26E-01 NC
1,3,5-TRINITROBENZENE 99-35-4 SV 2.22E+00 2.22E+00 NC
2,4,6-TRINITROTOLUENE 118-96-7 SV 5.76E-03 3.70E-02 5.76E-03 C
URANIUM (SOLUBLE SALTS; from IRIS)7440-61-1 M 2.22E-01 2.22E-01 NC
URANIUM (SOLUBLE SALTS; provisional)7440-61-1 M 1.48E-02 1.48E-02 NC
VANADIUM 7440-62-2 M 7.41E-02 7.41E-02 NC
VINCLOZOLIN 50471-44-8 SV 1.85E+00 1.85E+00 NC
VINYL ACETATE 108-05-4 V 4.23E+00 4.23E+00 NC
VINYL CHLORIDE: adult (see cover memos)75-01-4 V 1.15E-02 2.07E+00 1.15E-02 C
WARFARIN 81-81-2 SV 2.22E-02 2.22E-02 NC
O-XYLENE 95-47-6 V 2.22E+00 2.22E+00 NC
M,P-XYLENES 1330-20-7 V 2.22E+00 2.22E+00 NC
XYLENES 1330-20-7 V 2.22E+00 2.22E+00 NC
ZINC 7440-66-6 M 2.22E+01 2.22E+01 NC
ZINEB 12122-67-7 SV 3.70E+00 3.70E+00 NC
JMS/E082005001SLC PAGE 7 OF 7
APPENDIX G
2022 Human Health Risk Screen Evaluation
75 CEG/CEIE
F I N A L
Utah Test and Training Range
Thermal Treatment Unit
2022 Human Health Risk Screen
Evaluation
Contract No.: W9123822C0011
Prepared for:
Hill Air Force Base
75 CEG/CEIE
Environmental Branch
Civil Engineer Group
January 2023
6440 S. Millrock Dr
Suite 300
Holladay, UT 84121
ES062813053525SLC ES-1
Executive Summary
ES.0.0.1 This five-year review human health risk screening evaluation (HHRSE) was conducted for the
Thermal Treatment Unit (TTU) as required by the current Utah Test and Training Range Resource
Conservation and Recovery Act Part B Hazardous Waste Operating Permit. This HHRSE does not show
unacceptable risks for site worker exposures to TTU soil or offsite air exposure for any of the three
exposure scenarios (Explosive Ordnance Disposal [EOD] worker, Salt Lake boater, and Oasis resident).
ES.0.0.2 For surface soil exposure by industrial worker, the cumulative excess lifetime cancer risk
(ELCR) and cumulative noncancer and hazard index (HI) remained essentially unchanged compared with
the 2018 HHRSE. The cumulative ELCR was 3 ×10-6, which is slightly above the lower end of the 1×10-6 to
1×10-4 target risk range and unchanged from the 2018 value. The noncancer HI remained below the
target HI of 1. Practically all the carcinogenic risk associated with soil arises from arsenic. Arsenic is not
known to be a major component of the open burn/open denotation items. Furthermore, arsenic
concentrations in TTU soil are consistent with site-specific background concentrations (CH2M HILL,
2011a), indicating that it is naturally occurring. Excluding the naturally occurring arsenic, the cumulative
ELCR for the site worker was below 1×10-6.
ES.0.0.3 For the offsite air exposures (EOD worker, Salt Lake boater, and Oasis resident), the calculated
cumulative ELCRs were within the target ELCR range of 1×10-6 to 1×10-4. The calculated HIs did not
exceed acceptable levels for any exposure scenario. As a result, modifications to Attachment 10B of the
permit are not warranted at this time.
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PPS0829221639SLC iii
Contents
Executive Summary ....................................................................................................................... ES-1
Acronyms and Abbreviations .............................................................................................................. v
1 General............................................................................................................................... 1-1
1.1 Evaluation of the Risk Assessments ................................................................................. 1-1
2 Groundwater Pathway (40 CFR 264.601[a] and R315-264-601) ............................................. 2-1
2.1 Performance Standards ................................................................................................... 2-1
2.2 Required Programs .......................................................................................................... 2-1
2.3 Site-specific Conditions .................................................................................................... 2-1
2.4 Assessment of Potential Health Risks .............................................................................. 2-3
3 Surface Water (40 CFR 264.601[b] and R315-264-601) .......................................................... 3-1
3.1 Performance Standards ................................................................................................... 3-1
3.2 Required Programs .......................................................................................................... 3-1
3.3 Site-specific Conditions .................................................................................................... 3-1
4 Surface Soil (40 CFR 264.601[b] and R315-264-601) .............................................................. 4-1
4.1 Performance Standards ................................................................................................... 4-1
4.2 Required Programs .......................................................................................................... 4-1
4.3 Surface Soil Data .............................................................................................................. 4-1
4.3.1 Chemicals of Concern ......................................................................................... 4-1
4.3.2 Exposure Point Concentrations .......................................................................... 4-1
4.3.3 Background Evaluation ....................................................................................... 4-1
4.4 Assessment of Potential Health Risks .............................................................................. 4-2
4.4.1 Exposure and Intake Parameters ........................................................................ 4-2
4.4.2 Toxicity Factors ................................................................................................... 4-2
4.4.3 Risk Characterization .......................................................................................... 4-3
5 Air (40 CFR 264.601[c] and R315-264-601) ........................................................................... 5-1
5.1 Performance Standards ................................................................................................... 5-1
5.2 Receptors ......................................................................................................................... 5-1
5.3 Emission Characterization................................................................................................ 5-1
5.3.1 Dioxin and Furan Emissions ................................................................................ 5-2
5.4 Assessment of Potential Health Risks .............................................................................. 5-2
5.4.1 Exposure and Intake Parameters ........................................................................ 5-2
5.4.2 Toxicity Factors ................................................................................................... 5-3
5.4.3 Risk Characterization .......................................................................................... 5-3
6 References .......................................................................................................................... 6-1
CONTENTS
iv PPS0829221639SLC
Tables
2-1 TTU Groundwater Monitoring Well Sampling Results
4-1 Summary Statistics for Surface Soil Samples Collected between 2019 and 2021 and Estimation of
Screening Excess Lifetime Cancer Risk and Hazard Index for an Industrial Worker
4-2 Toxicity Factors
4-3 Changes in Toxicity Factors from 2018 to 2022
5-1 Intake and Exposure Parameters
5-2 Risk Summary for Hypothetical Offsite Air Exposures (Permit Tables 8, 9, and 10)
Appendix
A Regional Screening Level Table
PPS0829221639SLC v
Acronyms and Abbreviations
- - not analyzed
µg/L microgram(s) per liter
µg/m3 microgram(s) per cubic meter
AFB Air Force Base
ATSDR Agency for Toxic Substances and Disease Registry
B The analyte was detected in the associated method and/or calibration blank.
bgs below the ground surface
Cal EPA California Environmental Protection Agency
CAS Chemical Abstracts Service
CFR Code of Federal Regulations
ELCR excess lifetime cancer risk
EOD explosive ordnance disposal
EPA U.S. Environmental Protection Agency
EPC exposure point concentration
ft foot (feet)
HEAST Health Effects Assessment Summary Tables
HHRA human health risk assessment
HHRSE Human Health Risk Screening Evaluation
HI hazard index
HMX octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine
HQ hazard quotient
ID identification
IRIS Integrated Risk Information System
IUR inhalation unit risk
J The analyte was positively identified: the associated numerical value is the approximate
concentration of the analyte in the sample.
kg kilogram(s)
mg/kg milligram(s) per kilogram
mg/kg-day milligram(s) per kilogram per day
mg/L milligram(s) per liter
mg/m3 milligram(s) per cubic meter
MIDAS Munitions Items Disposition Action System
N/A not applicable or available
OB open burn
OD open detonation
PPRTV Provisional Peer-reviewed Toxicity Values
ACRONYMS AND ABBREVIATIONS
vi PPS0829221639SLC
RBC risked-based concentration
RCRA Resource Conservation and Recovery Act
RDX hexahydro-1,3,5-trinitro-1,3,5-triazine
RfC inhalation reference concentration
RfD oral reference dose
RSL regional screening level
SF oral cancer slope factor
TTU thermal treatment unit
U The analyte was analyzed for, but was not detected above the reported sample
quantitation limit.
UB The analyte is not detected at or above the indicated concentration due to blank
contamination.
UCL upper confidence limit (on the mean)
UDEQ Utah Department of Environmental Quality
UJ The analyte was below the reported sample quantitation limit. However, the reported
value is approximate.
UTTR Utah Test and Training Range
SECTION 1
PPS0829221639SLC 1-1
General
1.0.0.1 Hill Air Force Base (AFB) has been carrying out open burn (OB)/open detonation (OD)
operations at the Utah Test and Training Range (UTTR)-North (U.S. Environmental Protection Agency
[EPA] ID Number UT 0570090001) Thermal Treatment Unit (TTU) under a Resource Conservation and
Recovery Act (RCRA) Part B permit issued by the Utah Department of Environmental Quality (UDEQ).
The 1997 human health risk assessment (HHRA) submitted in support of the original permit request
indicated that the OB/OD operations would not cause undue harm to the potential onsite and offsite
receptors. The risk evaluation was updated in April 2005 with the inclusion of additional soil sampling
data from the 2002 and 2004 sampling events. The human health risk screening evaluations (HHRSEs)
were performed in 2007, 2009, 2011, 2013, and 2018 with updated soil sampling data. These
evaluations also indicated that there was no unacceptable risk from the OB/OD operations to the
potential onsite and offsite receptors. The 2005 risk assessment forms the baseline against which the
future soil sampling data must be evaluated, in terms of changes in the human health risk from the
ongoing OB/OD operations.
1.0.0.2 The risk assessment must be evaluated every 5 years with the biennial soil sampling data. This
HHRSE assesses the human health risks using 2019 and 2021 soil data. The scope pertaining to this risk
assessment update includes:
1. A review of the chemicals in Attachments 10A and 10B to add additional emissions as a result of
updates in the Munitions Items Disposition Action System (MIDAS) database or other relevant
emission data.
2. A review of the toxicity information (reference doses, cancer slope factors), in Attachments 10A and
10B, to include any new or updated toxicity data.
3. A review of environmental sampling data acquired since the last evaluation and discussion of how
these data affect the risk assessments in Attachments 10A and 10B.
1.1 Evaluation of the Risk Assessments
1.1.0.1 This evaluation of the completeness and accuracy of the HHRA (Attachment 10B of the permit)
has been prepared and is being submitted to UDEQ as required by Condition II.F of the RCRA permit.
This HHRSE includes a review of the chemicals in Attachment 10B (human health) with respect to
updates in the MIDAS database or other relevant emission data; a review of the toxicity information
(reference doses, cancer slope factors) in Attachment 10B; and any new or updated toxicity data. This
2018 HHRSE includes a review of the environmental sampling data acquired since the last HHRSE
conducted in 2018 and discusses how the new data affect the risk assessments in Attachment 10B.
1.1.0.2 The treatment of a single MOAB by OD on the TTU was reported as a new waste stream in the
2020 Waste Characterization Technical Memo. The MOAB weapon system can use either tritonal or H-6
explosive fill. While the MOAB weapon system is identified as a new waste stream since 2018, the
ingredients of both tritonal and H-6 explosives are included in the historic and current waste streams
treated at the TTU.
1.1.0.3 The 1997, 2005, 2007, 2009, 2011, 2013, and 2018 HHRSEs addressed risks for four distinct
exposure scenarios or pathways. These are the groundwater exposure pathway (Section 2.0), the
surface water exposure pathway (Section 3.0), the surface soil exposure pathway (Section 4.0), and the
air exposure pathway (Section 5.0). All previous HHRSEs established a lack of exposure to groundwater
and surface water. New groundwater analytical results collected since 2018 show that no explosives or
SECTION 1 – GENERAL
1-2 PPS0829221639SLC
explosive breakdown products were detected in the groundwater in 2018, 2019, 2020, or 2021.
Consequently, the discussion about groundwater (Section 2.0) and surface water (Section 3.0) does not
substantially differ from that presented in the 2005, 2007, 2009, 2011, 2013, and 2018 HHRSEs.
1.1.0.4 Section 4.0 discusses the potential risks for soil ingestion, inhalation, and dermal adsorption to
an industrial worker. The industrial worker exposure assumptions represent a full-time career person
working at the TTU. The industrial worker was not evaluated in the original permit. Rather, a resident
and a construction worker involved in a hypothetical residential development onsite were evaluated.
Given the unlikelihood that the site will ever be developed, the residential development scenario is not
realistic; therefore, the assessment of risks to these hypothetical receptors is not appropriate at this
time and has not been included. On the other hand, maintenance of the OB/OD area by an industrial
worker is a current activity. Therefore, potential exposure to soil by the industrial TTU worker is
considered complete and an assessment of this exposure scenario is required by Section III.G.1 of the
Part B permit.
1.1.0.5 Section 5.0 discusses the air exposure pathway and analyzes inhalation risks to (1) explosive
ordnance disposal (EOD) personnel monitoring the OB/OD operations onsite, (2) a recreational boater
on the Great Salt Lake, and (3) a resident at the nearby community of Oasis (limited access, onsite,
operational headquarters and lodging for the UTTR). These receptors remain the same as in the original
permit, but toxicity information has been updated and chemical-specific risks have been recalculated.
SECTION 2
PPS0829221639SLC 2-1
Groundwater Pathway (40 CFR 264.601[a]
and R315-264-601)
2.1 Performance Standards
2.1.0.1 The environmental performance standard for protection of groundwater calls for the
prevention of any releases that may adversely affect human health or the environment due to migration
of waste constituents in the groundwater or subsurface environments. Specific items to be considered
include the following:
• The volume and chemical characteristics of the waste in the unit
• The hydrogeologic and geologic characteristics of the unit and surrounding area
• The existing quality of groundwater
• The quantity and direction of groundwater flow
• The proximity to and withdrawal rates of current and potential groundwater users
• The patterns of land use in the region
• The potential for deposition or migration of waste constituents into the subsurface, physical
structures, and the root zone of food chain crops and other vegetation
• The potential for health risks caused by human exposure to waste constituents
• The potential for damage to domestic animals, wildlife, crops, vegetation, and physical structures
caused by exposure to waste constituents
2.2 Required Programs
2.2.0.1 Utah regulations require groundwater monitoring and reporting at all hazardous waste
management facilities unless a waiver is granted. The groundwater monitoring program consists of
detection monitoring, compliance monitoring, and monitoring during and after corrective actions.
Groundwater monitoring at the TTU is conducted on an annual basis.
2.3 Site-specific Conditions
2.3.0.1 Groundwater and geologic conditions beneath the TTU facility were investigated, starting in
1991, through installing and sampling Monitoring Wells TTU-l and TTU-2. Boreholes for the wells
revealed extensive thicknesses of unsaturated, low permeability soils. Groundwater in an unnamed
aquifer occurs at depths ranging from 450 feet (ft) near the southwest corner of the facility to 650 ft
beneath the ridge at Sedal Pass above the TTU. Based on groundwater levels in the upgradient and
downgradient monitoring wells, depth to groundwater beneath the three OB/OD units is estimated to
be greater than 585 ft.
2.3.0.2 Groundwater samples collected from the wells at TTU-l and TTU-2 since 2018 were analyzed
for energetics and metals. Table 2-1 shows the detected analytes. Each is commonly found in area soils.
SECTION 2 – GROUNDWATER PATHWAY (40 CFR 264.601[A] AND R315-264-601)
2-2 PPS0829221639SLC
2.3.0.3 Analytical results show various metals were present in groundwater samples taken from both
monitoring wells in 2018, 2019, 2020, and 2021 (Table 2-1). New groundwater analytical results
collected since 2018 show that, although there is variability in the concentrations of naturally occurring
metals in the groundwater, there is no indication of metals associated with TTU waste streams affecting
groundwater. No explosives or explosive breakdown products were detected in the groundwater.
Perchlorate, which is both naturally occurring and used as an oxidizer in propellants, was detected at
concentrations consistent with those previously observed (approximately 1 microgram per liter (ug/L),
with the exception of the 2018 sample in TTU-2 (2.01 ug/L).
2.3.0.4 Samples collected since 2018 and presented in the previous HHRSEs show the presence of
perchlorate levels around 1 ug/L in groundwater, with the exception of the 2018 sample in TTU-2 (2.01
ug/L). Those findings do not appear to be the result of laboratory or field contamination. A previous
groundwater dating study using carbon-14, tritium/helium, and chlorofluorocarbon methods has
demonstrated that groundwater in this area is Pleistocene in age (14,000 years before present), is
essentially stagnant, and receives little or no current recharge (CH2M HILL, 2006). That study supports
the conclusion that some perchlorate in groundwater beneath the TTU is naturally occurring.
The observed increases in metal and perchlorate concentrations along with a lack of explosives or their
decomposition products is believed to indicate that well TTU-2 data may be affected due to its proximity
to the large detonation events on the TTU and dust contamination from TTU activities. Although
perchlorate was detected at a concentration (2.01 ug/L) at TTU-2 higher than previously observed in
2018, this observation was expected to be attributable to dust contamination from outside the well. The
detected concentration of perchlorate in the subsequent sampling events in 2019, 2020, and 2021 are
consistent with levels observed in the past (less than 1 ug/L). Ground movement at well TTU-2 is
believed to be in excess of 1 inch during the largest detonations on the TTU; this provides potential for
damage to the well and the well seals. The top of the well is also subjected to significant overpressure
from these detonations. For this reason, a seal is maintained on the well head cap to prevent outside
contamination. The metals detected in the well with increasing concentrations are not associated with
TTU activities but many of the metals are associated with well construction materials. The TTU-2 well
pump was replaced in 2021. The low flow pump was replaced with a high flow Grundfos pump, as had
been previously utilized, to allow for purging of stagnant water containing corrosion byproducts from
the well.
2.3.0.5 Groundwater contamination from TTU OB/OD activity has been considered unlikely because
of the following:
• Groundwater occurs at greater than 400 to 600 ft below the ground surface (bgs).
• The average annual precipitation is generally low (i.e., approximately 6 inches per year).
• The potential for evapotranspiration is high.
• The soil deposits exhibit low permeability characteristics.
Given the groundwater increases in metals not associated with OB/OD on the TTU and increases in
perchlorate in well TTU-2, further investigation of well TTU-2 indicated well pump TTU-2 needed
replacement.
2.3.0.6 A subsurface investigation performed in 2007 indicated that contamination was relatively
shallow.
2.3.0.7 As discussed in Attachment 1 of the hazardous waste operating permit, the amount of
groundwater recharged due to infiltration is slight. Groundwater recharge near the TTU enters the
groundwater system only along the margins of the adjacent mountains where coarser-grained
sediments are present.
SECTION 2 – GROUNDWATER PATHWAY (40 CFR 264.601[A] AND R315-264-601)
PPS0829221639SLC 2-3
2.4 Assessment of Potential Health Risks
2.4.0.1 Analytical results indicate that groundwater beneath the TTU has likely not been
contaminated by OB/OD activities. In addition to the lack of groundwater contamination, the
groundwater under the TTU is not potable, so it is extremely unlikely that anyone would drink from the
same groundwater source that lies beneath the TTU and be at risk for groundwater exposure because of
TTU activities.
•Migration of contaminants from surface soil to the water table is limited. The area receives less than
6 inches of precipitation per year, on average; the soil and rock beneath the TTU have low vertical
permeabilities; and groundwater is more than 400 ft bgs.
•There is no current or projected future use of groundwater resources near the TTU.
•Based on this assessment, the groundwater exposure pathway is considered incomplete. The
groundwater protection performance standard has been met, and no revision to the permit is
needed to address groundwater exposures.

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SECTION 2 – GROUNDWATER PATHWAY (40 CFR 264.601[A] AND R315-264-601)
PPS0829221639SLC 2-5
Table 2-1. TTU Groundwater Monitoring Well Sampling Results
Thermal Treatment Unit 2022 Human Health Risk Screen Evaluation
Location TTU-1 TTU-2 TTU-1 TTU-2 TTU-1 TTU-2 TTU-1 TTU-2

Sample
Date 11/14/2018 11/14/2018 11/13/2019 11/13/2019 11/18/2020 11/17/2020 11/16/2021 11/17/2021
Analyte Units
VOCs

Energetics

1,3,5-Trinitrobenzene µg/L 1.0 U 1.0 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U
1,3-Dinitrobenzene µg/L 1.0 U 1.0 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U
2,4,6-Trinitrotoluene µg/L 1.0 U 1.0 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U
2,4-Dinitrotoluene µg/L 1.0 U 1.0 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U
2,6-Dinitrotoluene µg/L 1.0 U 1.0 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U
2-Amino-4,6-Dinitrotoluene µg/L 1.0 U 1.0 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U
2-Nitrotoluene µg/L 1.0 U 1.0 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U
3-Nitrotoluene µg/L 1.0 U 1.0 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U
4-Amino-2,6-Dinitrotoluene µg/L 1.0 U 1.0 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U
4-Nitrotoluene µg/L 1.0 U 1.0 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U
HMX µg/L 1.0 U 1.0 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U
Nitrobenzene µg/L 1.0 U 1.0 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U
RDX µg/L 1.0 U 1.0 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U
Tetryl µg/L 1.0 U 1.0 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U
Metallic Species

Aluminum µg/L 100 U 500 U 20 U 20 U 20 U 20 U 20 U 20 U
Arsenic µg/L 13.8 5 U 12.4 0.232 J 13 0.252 J 12.8 0.163
Barium µg/L 33.1 181 29.6 70 28.1 91.2 29.3 99.5
Beryllium µg/L 1 U 5 U 0.1 U 0.1 U 0.1 U 0.1 U 0.1 U 0.1 U
Cadmium µg/L 1 U 5 U 0.2 U 0.66 J 0.2 U 0.632 J 0.2 U 1.36
Chromium µg/L 1 U 5 U 0.105 J 0.2 U 0.398 J 0.142 J 0.136 J 0.2 U
Iron µg/L 100 U 566000 10 U 737 5.22 J 48.7 10 U 7530
Lead µg/L 1 U 5 U 0.1 U 0.1 U 0.1 U 0.1 U 0.1 U 0.1 U
Mercury µg/L 0.5 U 0.5 U 0.1 U 0.1 U 0.1 U 0.1 U 0.1 U 0.1 U
Nickel µg/L 1.32 799 0.42 33.5 0.339 J 318 0.463 399
Selenium µg/L 3.93 5 U 3.64 3.35 4.09 2.06 3.98 3.29
Silver µg/L 1 U 5 U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U 0.118 J
Vanadium µg/L 15.5 5 U 14.7 0.929 J 17.2 0.641 J 0.5 U 0.5 U
Zinc µg/L 20 U 186000 10.4 J 57100 10.0 U 98500 10 U 252000
General Chemical Assays

Total Alkalinity mg/L 70.6 73 126 228 68.8 191 62 122
SECTION 2 – GROUNDWATER PATHWAY (40 CFR 264.601[A] AND R315-264-601)
2-6 PPS0829221639SLC
Table 2-1. TTU Groundwater Monitoring Well Sampling Results
Thermal Treatment Unit 2022 Human Health Risk Screen Evaluation
Location TTU-1 TTU-2 TTU-1 TTU-2 TTU-1 TTU-2 TTU-1 TTU-2
Sample
Date 11/14/2018 11/14/2018 11/13/2019 11/13/2019 11/18/2020 11/17/2020 11/16/2021 11/17/2021
Analyte Units
Bicarbonate Alkalinity mg/L 64 73 94.4 228 52 191 49.6 122
Carbonate Alkalinity mg/L 6.58 5 U 31.3 5 U 16.8 5 U 12.4 5 U
Chloride mg/L 512 2890 483 910 484 1150 460 1360
Fluoride mg/L 0.358 0.4 U 0.372 0.3 0.391 0.282 0.284 0.214
Nitrate-Nitrite mg/L 0.331 0.25 U 0.345 J 1.43 0.6 0.764 0.493 0.731
Sulfate mg/L 134 125 129 107 131 112 124 103
Total Dissolved Solids mg/L 972 5390 1100 2190 1060 1940 1120 2760
Total Phosphorus mg/L 0.1 U 0.1 U 0.0188 J 0.03 U 0.0263 J 0.038 J 0.03 U 0.03 U
Perchlorate µg/L 0.5 U 2.01 0.249 0.353 0.379 0.481 0.424 1.0
Notes:
ID = identification
mg/L = milligram(s) per liter
µg/L = microgram(s) per liter
B = The analyte was detected in the associated method and/or calibration blank.
J = The analyte was positively identified: the associated numerical value is the approximate concentration of the analyte in the sample.
U = The analyte was analyzed for, but was not detected above the reported sample quantitation limit.
UJ = The analyte was below the reported sample quantitation limit. However, the reported value is approximate.
Bold indicates the analyte was detected.
SECTION 3
PPS0829221639SLC 3-1
Surface Water (40 CFR 264.601[b] and R315-
264-601)
3.1 Performance Standards
3.1.0.1 The environmental performance standard for surface water calls for the prevention of any
releases that may have adverse effects on human health or the environment due to migration of waste
constituents in surface water or in wetlands. Considerations include the following:
•The volume and physical and chemical characteristics of the waste in the unit
•The effectiveness and reliability of containing, confining, and collecting systems and structures and
preventing migration
•The hydrologic characteristics of the unit and surrounding area, including the topography and land
around the unit
•The patterns of precipitation in the region
•The quantity, quality, and direction of groundwater flow
•The proximity of the unit to surface waters
•The current and potential uses of nearby surface waters and any other water quality standards
established for those surface waters
•The existing quality of surface waters and surface soils, including other sources of contamination
•Patterns of land use in the region
•The potential for health risks caused by human exposure to waste constituents
•The potential for damage to domestic animals, wildlife, crops, vegetation, and physical structures
caused by exposure to waste constituents
3.2 Required Programs
3.2.0.1
The requirement for surface water monitoring is found in Section III.G.4.a of the TTU permit:
Surface water accumulation will be monitored during the monthly environmental
compliance inspection of the TTU required by Condition II.H. and described in
Attachment 5. Sampling of observed surface water will take place within 24
hours if, in the judgement of the Facility inspector, significant surface water
accumulation is observed that is likely to facilitate contaminant transport or serve
as a water source for wildlife. The area of inspection for surface water will be
limited to the TTU boundary.
3.3 Site-specific Conditions
3.3.0.1 There are no permanent surface water bodies within the confines of the TTU or in the
surrounding area. However, there is an erosional dry wash located topographically below the TTU
subunits. Surface water may also collect in detonation craters or other depressions within the TTU
SECTION 3 – SURFACE WATER (40 CFR 264.601[B] AND R315-264-601)
3-2 PPS0829221639SLC
operational area, although the area is actively managed to facilitate storm water runoff. Surface water is
present in the dry wash and detonation craters infrequently during major storm events. Annual
precipitation in and around the TTU is generally less than 6 inches per year. The only additional water
input to the site is from localized dust control operations. Because the TTU sub-units are located near
the top of the precipitation catchment basin, there is little potential for surface water runoff collecting
in the subunits. The natural topography directs the flow away from active portions of the TTU. The
closest surface water body to the TTU is the Great Salt Lake, which lies approximately 3 miles eastward.
Because the TTU is located on the west side of the Lakeside Mountain Range, surface water runoff from
the TTU facility is directed to the west, away from the Great Salt Lake, into the Sink Valley, which is a
closed, internally drained basin.
3.3.0.2 For these reasons, surface water resources in the vicinity will not be affected by OB/OD
operations at the TTU. In addition, there are no significant surface water exposure pathways from the
TTU subunits to potential human receptors.
3.3.0.3 The only surface water present at the TTU is the infrequent accumulation of storm water in a
detonation crater and dry wash. A heavy rain event in August 2012 resulted in the accumulation of
surface water runoff in one of the detonation craters. Surface water was collected from the crater in
2012 and evaluated for potential risks in the 2013 HHRSE. No accumulations of surface water have been
observed at the site since 2013; therefore, surface water is not evaluated in this 2022 HHRSE. Human
health risks and hazards via surface water exposure pathway are considered insignificant because the
limited duration of standing water and limited access renders potential exposures de minimis.
Therefore, there is no potential for significant human health risks from this pathway.
SECTION 4
PPS0829221639SLC 4-1
Surface Soil (40 CFR 264.601[b] and
R315-264-601)
4.1 Performance Standards
4.1.0.1 The environmental performance standard for soil calls for the prevention of any releases that
may have adverse effects on human health.
4.2 Required Programs
4.2.0.1 Soil sampling at the TTU is required on a biennial basis as described in Section III.G.1 of the
UTTR RCRA Permit.
4.3 Surface Soil Data
4.3.0.1 This report addresses soil data from the 2019 and 2021 sampling events (CH2M HILL, 2020;
CH2M HILL, 2022). The analytical data for these sampling events were verified and validated according
to the Air Force Center for Engineering and the Environment data quality assessment and validation
guidelines. The discussion in this section pertains to data collected in 2019 and 2021 and constitutes the
2022 risk assessment review required by the current RCRA permit.
4.3.1 Chemicals of Concern
4.3.1.1 Table 4-1 presents the descriptive statistics for the soil samples collected in 2019 and 2021,
including the total number of samples, number of detects, and maximum detected concentrations by
analyte.
4.3.1.2 EPA Region 8 does not require a toxicity assessment for chemicals with less than a 5%
detection frequency. However, Hill AFB evaluated all the detected analytes in the HHRSE regardless of
the detection frequency. The surface soil analytes are presented in Table 4-1.
4.3.2 Exposure Point Concentrations
4.3.2.1 Maximum detected concentrations were used conservatively as exposure point
concentrations (EPCs) in the HHRSE. The tiered approach was applied in this HHRSE: risk was evaluated
first with observed maximum detected concentrations. If a risk estimated based on the maximum
detected concentration indicates potential unacceptable risk, then statistically derived 95% upper
confidence level (UCL) on mean concentrations would be calculated and used as EPCs in a subsequent
risk estimation.1
4.3.3 Background Evaluation
4.3.3.1 Most of the metals detected in the TTU samples also occur naturally. In risk characterization, it
is important to distinguish metals that may be attributable to the OB/OD operations from those not
originating from the operations. If the site sample concentration for a metal is not statistically
distinguishable from the natural concentration, it could be concluded that TTU operations have not

1 Because the risks estimated based on the maximum detected concentrations did not indicate unacceptable risks, a subsequent evaluation of
risks based on 95% UCLs of mean was not warranted in this HHRSE.
SECTION 4 – SURFACE SOIL (40 CFR 264.601[B] AND R315-264-601)
4-2 PPS0829221639SLC
affected the area soils with respect to that metal; therefore, that metal can be excluded from risk
characterization.
4.3.3.2 Soil characterization studies surrounding the TTU have adequately characterized the
background soil composition (CH2M HILL, 2011b; Appendix A). This updated HHRA report addresses
background versus site comparisons only for analytes that exceed risk based screening levels.
4.4 Assessment of Potential Health Risks
4.4.0.1 The HHRSE was conducted to determine whether existing concentrations of the analytes in
soil indicate potential unacceptable health risk for the industrial worker. The EPA’s regional screening
levels (RSLs) for the industrial worker soil exposure were the basis of this HHRSE (EPA, 2022a). The RSLs
are risk-based concentrations (RBCs) derived from standardized equations combining exposure
information assumptions with EPA toxicity data. The RSLs are considered by the EPA to be protective for
humans (including sensitive groups) over a lifetime. The excess lifetime cancer risk (ELCR) and hazard
quotient (HQ) used to calculate the RSLs are 10-6 and 1, respectively.
4.4.1 Exposure and Intake Parameters
4.4.1.1 The RSLs account for exposure to soil via incidental ingestion, dermal contact, and inhalation
of volatiles and particulate inhalation. These are the same exposure pathways considered in the 2018
HHRSE (CH2M HILL, 2013).
4.4.1.2 The RSL table and User’s Guide (EPA, 2022a) presenting the updated EPA default exposure
factors and resulting RSLs are presented in Appendix A and the EPA’s Regional Screening Level User’s
Guide (EPA, 2022b).
4.4.2 Toxicity Factors
4.4.2.1 The RSLs use toxicity factors derived from the three-tier hierarchy established by EPA (2003).
These sources include the following:
• Tier 1—The EPA’s Integrated Risk Information System.
• Tier 2—The EPA’s Provisional Peer reviewed Toxicity Values (PPRTVs).
• Tier 3—Other Toxicity Values. Tier 3 includes additional EPA and non-EPA sources of toxicity
information.
− The Agency for Toxic Substances and Disease Registry minimal risk levels
− The California Environmental Protection Agency Office of Environmental Health Hazard
Assessment Toxicity Criteria Database
− The EPA’s PPRTV Screening Toxicity Values
− The EPA’s Health Effects Assessment Summary Table.
4.4.2.2 Table 4-2 contains the toxicity factors for analytes detected in TTU soils. Table 4-3 summarizes
changes in toxicity factors that would result in a potential increase of the risks previously estimated in
the 2018 HHRSE based on the current toxicity factors.
SECTION 4 – SURFACE SOIL (40 CFR 264.601[B] AND R315-264-601)
PPS0829221639SLC 4-3
4.4.3 Risk Characterization
4.4.3.1 The ELCR and noncancer HI for detected analytes were calculated using the chemical-specific
EPCs and RSL as follows:
• ELCR = EPC/Cancer RSL×10-6
• HI = EPC/Noncancer RSL
4.4.3.2 Table 4-1 presents the RSLs, ELCRs, and HQs for individual analytes. The cumulative ELCR was
calculated by adding the ELCRs for the individual analytes. The noncancer hazard index (HI) was
calculated by adding the HQs for the individual analytes. These cumulative estimates are also presented
in Table 4-1.
4.4.3.3 For surface soil exposure, the cumulative ELCR and cumulative noncancer HI remained
essentially unchanged compared with the 2018 HHRSE. The noncancer HI (0.3) was well below the
target level of 1. The cumulative ELCR was 3×10-6, which is slightly above the lower end of the 1×106 to
1×104 target risk range. Practically all the carcinogenic risk (91%) associated with soil arises from arsenic.
Arsenic is not known to be a major component of the OB/OD items. Furthermore, arsenic
concentrations in TTU soil are consistent with site-specific background concentrations (CH2M HILL,
2011a), indicating that it is naturally occurring. Excluding the naturally occurring arsenic, the calculated
cumulative ELCR for the site worker (2x107) is below 1×10-6. These results indicate that no modification
to the permit Attachment 10B is warranted with respect to soil exposure at the TTU.
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SECTION 4 – SURFACE SOIL (40 CFR 264.601[B] AND R315-264-601)
4-5 PPS0829221639SLC
Table 4-1. Summary Statistics for Surface Soil Samples Collected between 2019 and 2021 and Estimation of Screening Excess Lifetime Cancer Risk and Hazard Index for an Industrial Worker
Thermal Treatment Unit 2022 Human Health Risk Screen Evaluation
Analyte Group Chemical Name CAS Number
Summary Statistics Risk Screening
Sample Count Detection Count Detection
Frequency
2019-21
Maximum
Result
(mg/kg)
EPC Basisa Cancer RSLb
(mg/kg)
Screening
ELCRc
ELCR Percent
Totald
Noncancer RSLb
(mg/kg) Screening HQc HI Percent
Totald
Chloride 16887-00-6 12 8 67% 3100 Max -- -- -- --
GenChem Nitrate as Nitrogen 7697-37-2 12 12 100% 24 Max -- -- -- --
Perchlorate 14797-73-0 12 12 100% 9.6 Max -- -- 820 1.2E-02 4%
Sulfate 14808-79-8 12 9 75% 3400 Max -- -- -- --
Nitroglycerin 55-63-0 12 3 25% 15 Max 140 1.1E-07 4% 82 1.8E-01 59%
Explosives Nitroguanidine 556-88-7 12 0 0% <0.02 -- -- -- 82000 --
PETN 78-11-5 12 0 0% <0.49 -- 530 -- 7400 --
Picric Acid 88-89-1 12 0 0% <0.056 -- -- -- 1600 --
Aluminum 7429-90-5 12 12 100% 18000 Max -- -- 1100000 1.6E-02 5%
Metal Antimony 7440-36-0 12 12 100% 0.66 Max -- -- 470 1.4E-03
Arsenic 7440-38-2 12 12 100% 7 Max 3 2.3E-06 91% 480 1.5E-02 5%
Barium 7440-39-3 12 12 100% 270 Max -- -- 220000 1.2E-03
Beryllium 7440-41-7 12 12 100% 0.73 Max 6900 1.1E-10 2300 3.2E-04
Cadmium 7440-43-9 12 12 100% 0.67 Max 9300 7.2E-11 100 6.7E-03 2%
Calcium 7440-70-2 12 12 100% 170000 Max -- -- -- --
Chromiume 7440-47-3 12 12 100% 15 Max -- -- 1800000 8.3E-06
Cobalt 7440-48-4 12 12 100% 4.2 Max 1900 2.2E-09 350 1.2E-02 4%
Copper 7440-50-8 12 12 100% 18 Max -- -- 47000 3.8E-04
Iron 7439-89-6 12 12 100% 13000 Max -- -- 820000 1.6E-02 5%
Lead 7439-92-1 12 12 100% 17 Max -- -- 800 f
Magnesium 7439-95-4 12 12 100% 22000 Max -- -- -- --
Manganese 7439-96-5 12 12 100% 500 Max -- -- 26000 1.9E-02 6%
Mercury 7439-97-6 12 9 75% 0.015 Max -- -- 46 3.3E-04
Molybdenum 7439-98-7 12 12 100% 2.8 Max -- -- 5800 4.8E-04
Nickel 7440-02-0 12 12 100% 12 Max 64000 1.9E-10 22000 5.5E-04
Potassium 7440-09-7 12 12 100% 6200 Max -- -- -- --
Selenium 7782-49-2 12 12 100% 0.23 Max -- -- 5800 4.0E-05
Silver 7440-22-4 12 12 100% 0.23 Max -- -- 5800 4.0E-05
Sodium 7440-23-5 12 12 100% 3800 Max -- -- -- --
SECTION 4 – SURFACE SOIL (40 CFR 264.601[B] AND R315-264-601)
4-6 PPS0829221639SLC
Table 4-1. Summary Statistics for Surface Soil Samples Collected between 2019 and 2021 and Estimation of Screening Excess Lifetime Cancer Risk and Hazard Index for an Industrial Worker
Thermal Treatment Unit 2022 Human Health Risk Screen Evaluation
Analyte Group Chemical Name CAS Number
Summary Statistics Risk Screening
Sample Count Detection Count Detection
Frequency
2019-21
Maximum
Result
(mg/kg)
EPC Basisa Cancer RSLb
(mg/kg)
Screening
ELCRc
ELCR Percent
Totald
Noncancer RSLb
(mg/kg) Screening HQc HI Percent
Totald
Strontium 7440-24-6 12 12 100% 420 Max -- -- 700000 6.0E-04
Thallium 7440-28-0 12 12 100% 0.22 Max -- -- 12 1.8E-02 6%
Vanadium 7440-62-2 12 12 100% 24 Max -- -- 5800 4.1E-03 1%
Zinc 7440-66-6 12 12 100% 48 Max -- -- 350000 1.4E-04
1,3,5-Trinitrobenzene 99-35-4 12 0 0% <0.014 -- -- -- 32000 --
SVOC 2,4,6-Trinitrotoluene (TNT) 118-96-7 12 0 0% <0.031 -- 96 -- 510 --
2,4-Dinitrotoluene 121-14-2 12 3 25% 0.76 Max 7.4 1.0E-07 4% 1600 4.8E-04
2,6-Dinitrotoluene 606-20-2 12 1 8% 0.019 Max 1.5 1.3E-08 250 7.6E-05
2-Amino-4,6-dinitrotoluene 35572-78-2 12 0 0% <0.033 -- -- -- 110 --
2-Nitrotoluene 88-72-2 12 0 0% <0.047 -- 15 -- 1100 --
3-Nitrotoluene 99-08-1 12 0 0% <0.064 -- -- -- 82 --
4-Amino-2,6-dinitrotoluene 19406-51-0 6 0 0% <0.03 -- -- -- 110 --
4-Nitrotoluene - SS 99-99-0 12 0 0% <0.037 -- 140 -- 3300 --

Hexahydro-1,3,5-trinitro-1,3,5-triazine
(RDX) 121-82-4 12 1 8% 0.052 Max 38 1.4E-09 4400 1.2E-05

Methyl-2,4,6-trinitrophenylnitramine
(Tetryl) 479-45-8 12 0 0% <0.044 -- -- -- 2300 --
Nitrobenzene 98-95-3 12 0 0% <0.085 -- 22 -- 1300 --

Octahydro-1,3,5,7-tetranitro-1,3,5,7-
tetrazocine (HMX) 2691-41-0 12 3 25% 1.1 Max -- -- 57000 1.9E-05
VOC 1,3-Dinitrobenzene 99-65-0 12 0 0% <0.017 -- -- -- 82 --
Total 3E-06 3E-01
Notes:
a Maximum detected concentrations were used conservatively as EPC. CAS = Chemical Abstracts Service
b Industrial Soil RSLs (May 2022) based on a target ELCR of 10-6 (1e-06) and HQ of 1. Max = maximum
c Screening ELCR and HQ were calculated conservatively based on the ratio of maximum detected concentration (as EPC) to RSL for respective health end point. mg/kg = milligram(s) per kilogram
d Percent contribution to receptor total ELCR and HI greater than or equal to 1% is presented. RfD = reference dose
e Chromium III RSL was used as a surrogate for total chromium
f EPA considers lead to be a special case because of the difficulty in identifying the classic “threshold” needed to develop a RfD; therefore, HI was not calculated for lead.
The industrial soil RSL of 800 mg/kg was used as the screening level for soil. The maximum detected concentration of lead was more than an order of magnitude lower than the industrial soil RSL.
SECTION 4 – SURFACE SOIL (40 CFR 264.601[B] AND R315-264-601)
PPS0829221639SLC 4-7
Table 4-2. Toxicity Factors
Thermal Treatment Unit 2022 Human Health Risk Screen Evaluation
Chemical Name Standard Name CAS Number SF
(mg/kg-day)-1
SF
Ref
RfD
(mg/kg-day)
RfD
Ref
IUR
(µg/m3)-1
IUR
Ref
RfC
(mg/m3)
RfC
Ref
1,3,5-Trinitrobenzene Trinitrobenzene, 1,3,5- 99-35-4 -- -- 0.03 I -- -- -- --
1,3-Dinitrobenzene Dinitrobenzene, 1,3- 99-65-0 -- -- 0.0001 I -- -- -- --
2,4,6-Trinitrotoluene (TNT) Trinitrotoluene, 2,4,6- 118-96-7 0.03 I 0.0005 I -- -- -- --
2,4-Dinitrotoluene Dinitrotoluene, 2,4- 121-14-2 0.31 C 0.002 I 0.000089 C -- --
2,6-Dinitrotoluene Dinitrotoluene, 2,6- 606-20-2 1.5 P 0.0003 X -- -- -- --
2-Amino-4,6-dinitrotoluene Dinitrotoluene, 2-Amino-4,6- 35572-78-2 -- -- 0.0001 X -- -- -- --
2-Nitrotoluene Nitrotoluene, o- 88-72-2 0.22 P 0.0009 P -- -- -- --
3-Nitrotoluene Nitrotoluene, m- 99-08-1 -- -- 0.0001 X -- -- -- --
4-Amino-2,6-dinitrotoluene Dinitrotoluene, 4-Amino-2,6- 19406-51-0 -- -- 0.0001 X -- -- -- --
4-Nitrotoluene - SS Nitrotoluene, p- 99-99-0 0.016 P 0.004 P -- -- -- --
Aluminum Aluminum 7429-90-5 -- -- 1 P -- -- 0.005 P
Antimony Antimony (metallic) 7440-36-0 -- -- 0.0004 I -- -- 0.0003 A
Arsenic Arsenic, Inorganic 7440-38-2 1.5 I 0.0003 I 0.0043 I 0.000015 C
Barium Barium 7440-39-3 -- -- 0.2 I -- -- 0.0005 H
Beryllium Beryllium and compounds 7440-41-7 -- -- 0.002 I 0.0024 I 0.00002 I
Cadmium Cadmium (Diet) 7440-43-9 -- -- 0.0001 A 0.0018 I 0.00001 A
Calcium Calcium 7440-70-2 -- -- -- -- -- -- -- --
Chloride Chloride 16887-00-6 -- -- -- -- -- -- -- --
Chromiuma Chromium 7440-47-3 -- -- 1.5 I -- -- -- --
Cobalt Cobalt 7440-48-4 -- -- 0.0003 P 0.009 P 0.000006 P
Copper Copper 7440-50-8 -- -- 0.04 H -- -- -- --
Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) 121-82-4 0.08 I 0.004 I -- -- -- --
Iron Iron 7439-89-6 -- -- 0.7 P -- -- -- --
Lead Lead and Compounds 7439-92-1 -- -- -- -- -- -- -- --
Magnesium Magnesium 7439-95-4 -- -- -- -- -- -- -- --
Manganese Manganese (Non-diet) 7439-96-5 -- -- 0.024 G -- -- 0.00005 I
Mercury Mercury (elemental) 7439-97-6 -- -- -- -- -- -- 0.0003 I
Methyl-2,4,6-trinitrophenylnitramine (Tetryl) Tetryl (Trinitrophenylmethylnitramine) 479-45-8 -- -- 0.002 P -- -- -- --
Molybdenum Molybdenum 7439-98-7 -- -- 0.005 I -- -- 0.002 A
Nickel Nickel Soluble Salts 7440-02-0 -- -- 0.02 I 0.00026 C 0.00009 A
Nitrate as Nitrogen Nitrate as Nitrogen 7697-37-2 -- -- -- -- -- -- -- --
SECTION 4 – SURFACE SOIL (40 CFR 264.601[B] AND R315-264-601)
4-8 PPS0829221639SLC
Table 4-2. Toxicity Factors
Thermal Treatment Unit 2022 Human Health Risk Screen Evaluation
Chemical Name Standard Name CAS Number SF
(mg/kg-day)-1
SF
Ref
RfD
(mg/kg-day)
RfD
Ref
IUR
(µg/m3)-1
IUR
Ref
RfC
(mg/m3)
RfC
Ref
Nitrobenzene Nitrobenzene 98-95-3 -- -- 0.002 I 0.00004 I 0.009 I
Nitroglycerin Nitroglycerin 55-63-0 0.017 P 0.0001 P -- -- -- --
Nitroguanidine Nitroguanidine 556-88-7 -- -- 0.1 I -- -- -- --
Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) 2691-41-0 -- -- 0.05 I -- -- -- --
Perchlorate Perchlorate and Perchlorate Salts 14797-73-0 -- -- 0.0007 I -- -- -- --
PETN Pentaerythritol tetranitrate (PETN) 78-11-5 0.0043 X 0.009 P -- -- -- --
Picric Acid Picric Acid (2,4,6-Trinitrophenol) 88-89-1 -- -- 0.002 X -- -- -- --
Potassium Potassium 7440-09-7 -- -- -- -- -- -- -- --
Selenium Selenium 7782-49-2 -- -- 0.005 I -- -- 0.02 C
Silver Silver 7440-22-4 -- -- 0.005 I -- -- -- --
Sodium Sodium 7440-23-5 -- -- -- -- -- -- -- --
Strontium Strontium, Stable 7440-24-6 -- -- 0.6 I -- -- -- --
Sulfate Sulfate 14808-79-8 -- -- -- -- -- -- -- --
Thallium Thallium (Soluble Salts) 7440-28-0 -- -- 0.00001 X -- -- -- --
Vanadium Vanadium and Compounds 7440-62-2 -- -- 0.005 G -- -- 0.0001 A
Zinc Zinc and Compounds 7440-66-6 -- -- 0.3 I -- -- -- --
Notes: References:
a Chromium III toxicity value is used as a surrogate for total chromium A = ATSDR (Agency for Toxic Substances and Disease Registry)
µg/m3 = microgram(s) per cubic meter C = California Environmental Protection Agency
IUR = inhalation unit risk H = HEAST (Health Effects Assessment Summary Tables)
mg/kg-day = milligram(s) per kilogram per day I = IRIS (Integrated Risk Information System)
mg/m3 = milligram(s) per cubic meter P = PPRTV (Provisional Peer-reviewed Toxicity Values)
RfC = inhalation reference concentration G = See RSL User's Guide
RfD = oral reference dose X = PPRTV Appendix Screening Value
SF = oral cancer slope factor
SECTION 4 – SURFACE SOIL (40 CFR 264.601[B] AND R315-264-601)
PPS0829221639SLC 4-9
Table 4-3. Changes in Toxicity Factors from 2018 to 2022
Thermal Treatment Unit 2022 Human Health Risk Screen Evaluation
Carcinogenic toxicity changesb Non-carcinogenic toxicity changes
Chemical Namea Standard Name CAS SF (mg/kg-day)-1 RfD (mg/kg-day) RfC (mg/m3)
Number 2018 HHRSE 2022 HHRSE Change 2018 HHRSE 2022 HHRSE Change 2018 HHRSE 2022 HHRSE Change
Value Ref Value Ref in Value Value Ref Value Ref in Value Value Ref Value Ref in Value
2-Amino-4,6-dinitrotoluene Dinitrotoluene, 2-Amino-4,6- 35572-78-2 2.0E-03 c 1.0E-04 PPRTV Appendix more stringent
4-Amino-2,6-dinitrotoluene Dinitrotoluene, 4-Amino-2,6- 19406-51-0 2.0E-03 c 1.0E-04 PPRTV Appendix more stringent
Antimony Antimony (metallic) 7440-36-0 -- -- 3.0E-04 ATSDR more stringent
Cadmium Cadmium (Diet) 7440-43-9 1.0E-03 IRIS 1.0E-04 ATSDR more stringent
Molybdenum Molybdenum 7439-98-7 -- -- 2.0E-03 ATSDR more stringent
PETN Pentaerythritol tetranitrate (PETN) 78-11-5 4.0E-03 PPRTV Appendix 4.3E-03 PPRTV Appendix more stringent
Notes: References:
a Chemicals with changes in toxicity factors that result in a potential increase of the previously estimated risks in the 2018 HHRSE are presented in this table. ATSDR = Agency for Toxic Substances and Disease Registry
b No changes in IUR that result in a potential increase of the previously estimated risks in the 2018 HHRSE were identified. IRIS = Integrated Risk Information System
c 2,4-Dinitrotoluene RfD was used as surrogate toxicity value (See RSL User's Guide) PPRTV = Provisional Peer-reviewed Toxicity Values
This page intentionally left blank.
SECTION 5
PPS0829221639SLC 5-1
Air (40 CFR 264.601[c] and R315-264-601)
5.1 Performance Standards
5.1.0.1 The environmental performance standard for the protection of the air pathway requires the
prevention of any release that may have adverse effects on human health or the environment due to
migration of waste constituents in the air. Specific items to be considered include the following:
• The volume and physical and chemical characteristics of the waste in the unit, including its potential
for the emission and dispersal of gases, aerosols, and particulates
• The effectiveness and reliability of systems and structures to reduce or prevent emissions of
hazardous constituents to the air
• The operating characteristics of the unit
• The atmospheric, meteorological, and topographic characteristics of the unit and surrounding area
• The existing quality of the air, including other sources of contamination and their cumulative impact
on the air
• The potential for health risks caused by human exposure to waste constituents
• The potential for damage to domestic animals, wildlife, crops, vegetation, and physical structures
caused by exposure to waste constituents
5.2 Receptors
5.2.0.1 The air pathway entails potential inhalation risks to (1) EOD personnel monitoring the OB/OD
operations onsite, (2) a recreational boater on the Great Salt Lake, and (3) a resident at the nearby
community of Oasis (limited access, onsite, operational headquarters and lodging for the UTTR). These
receptors remain the same as in the original permit. Water levels in the Great Salt Lake have dropped
substantially over the last 10 years with the net result of significantly limiting access to, and use of, the
Great Salt Lake for recreation.
5.3 Emission Characterization
5.3.0.1 As a source of air pollutants, OB/OD units must operate in accordance with specifications
provided in the State-issued hazardous waste permit. All OB/OD units must comply with National
Ambient Air Quality Standards and the Utah Division of Air Quality standards, as demonstrated by the
use of State-approved air dispersion modeling protocol. In addition, OB/OD facilities must evaluate
whether air emissions pose a risk to human health or the environment.
5.3.0.2 The air modeling exercise was completed as part of the 1997 permit application. The EPA’s
INPUFF model was used to estimate the air concentrations (hence, risks for three specific receptors).
The air modeling does not need to be updated unless significant changes have been made to the usage
patterns at the TTU or to the emission factor inputs to the air dispersion model. The OB/OD is carried
out as an on-demand batch operation, depending on the needs of the time. However, an analysis of the
materials destroyed over a period of 10 years indicated that regardless of the items being destroyed
(i.e., a rocket motor or missile engine), the explosive and propellant types and quantities have remained
relatively unchanged (Hill AFB, 2005). From year to year, the detonation of C-4 missile motors has
comprised from 50 to 85% of the net amount of explosives and propellants destroyed. As the inventory
SECTION 5 – AIR (40 CFR 264.601[C] AND R315-264-601)
5-2 PPS0829221639SLC
of C-4 motors awaiting disposal is almost depleted, disposal of D-5 missile motors (the successor to the
C-4 missiles) is commencing. The propellant in the C-4 and D-5 missiles is nearly identical with no
discernible upward change to projected emissions. Further, there is no new information in the MIDAS
database to warrant a revision of the modeling or a change in the emissions. It should be noted that
waste streams using the burn pan (e.g., small munitions and dunnage) were last treated at the TTU in
1997 and the burn pan was decommissioned and removed in 2018. This does not add or increase
emissions.
5.3.0.3 Based on the TTU usage pattern previously described, it is not necessary to modify the EPCs
presented Tables 8, 9, and 10 of the 1997 permit application at this time. These EPCs used in the HHRSE
for offsite air exposures are presented in Table 5-2.
5.3.1 Dioxin and Furan Emissions
5.3.1.1 As part of the 2005 risk assessment revision and as a requirement of permit Section II.F.2.c,
Hill AFB investigated the potential for formation of dioxins and furans from the OB/OD operations,
including the burning of dunnage and diesel fuel. A thorough discussion of the previous dioxins/furans
investigation and data evaluation results is presented in the 2009 risk screening evaluation (CH2M HILL,
2009). The burn pan for small munitions and dunnage (with diesel fuel as an accelerant) was removed in
2018. There are no plans to resume treating this waste stream at the TTU.
5.4 Assessment of Potential Health Risks
5.4.0.1 The results of the 1997 INPUFF air dispersion modeling were used in the inhalation risk
characterization. The most recent toxicity factors obtained from the RSL table (EPA, 2022a), which
compiles toxicity values from EPA recommended sources based on the three-tier hierarchy discussed in
Section 4.4.2, were used in the HHRSE.
5.4.1 Exposure and Intake Parameters
5.4.1.1 The exposure and intake parameters for the air receptors are included in Table 5-1. These
parameters are the same as in the 1997, 2003, 2005, 2007, 2009, 2011, 2013, and 2018 assessments,
except for the update on the exposure duration for the Oasis resident in the 2018 HHRSE. The exposure
duration for the Oasis resident was changed from 30 years to 26 years according to the EPA’s update to
standard default exposure factors in 2014 (EPA, 2014). It was assumed that the EOD worker was
exposed to emissions only while conducting OB/OD operations. The recreational boater was assumed to
spend 2 days on the lake every week. Access to the Oasis compound is limited to working employees
only and no family members are allowed to reside in the area. The Oasis resident (adult workers) was
assumed to spend at least 5 days per week at the Oasis compound. The daily exposure times include a
factor to account for the fraction of the time the wind blows in the direction of a given receptor as
presented in the 2003 Permit Attachment 10B. These factors are shown in Table 5-1.
5.4.1.2 Averaged inhalation exposure concentrations were calculated as follows:
CAIR x
ET x WF x EF x ED = ConcAvg 24 h/d
AT
SECTION 5 – AIR (40 CFR 264.601[C] AND R315-264-601)
PPS0829221639SLC 5-3
where:
CAIR = EPC (mg/m3) presented Tables 8, 9, and 10 of the 1997 permit application.
ConcAvg = Averaged exposure concentration (mg/m3).
ED = Exposure duration (years), or the number of years that a receptor is potentially exposed to
contamination.
EF = Exposure frequency (days per year), or the number of days per year a receptor spends in the
exposure location.
ET = Exposure time (hours per day [h/d]), or the amount of time a receptor spends in an exposure
setting on a daily basis.
WF = Wind factor (percent), or fraction of time (day) wind blowing toward receptor.
AT = Averaging time (days). For cancer effects, the concentration is averaged over an assumed
lifetime of 70 years (25,500 days). For noncancer effects, the concentration is averaged over the
duration of exposure.
5.4.2 Toxicity Factors
5.4.2.1 The three-tiered sources for inhalation toxicity factors were the same as described for soil
exposures (Section 4.0). These factors include the inhalation unit risk (IUR) for cancer risk and the
inhalation reference concentration (RfC) for noncancer effects (Table 5-2).
5.4.3 Risk Characterization
5.4.3.1 The risks for each chemical were calculated using the chemical-specific averaged exposure
concentration and inhalation toxicity factors (IUR for cancer effects and RfC for noncancer effects as
follows:
ConcAvg × IUR x 1,000
(µg/m3) = ELCR
where:
IUR = Inhalation unit risk (µg/m3)-1, chemical-specific
ELCR = Excess lifetime cancer risk (unitless)
ConcAvg = HQ RfC
where:
RfC = Inhalation reference concentration for chronic exposure (mg/m3), chemical specific
HQ = Noncancer hazard quotient (unitless)
5.4.3.2 The individual chemical ELCR and HQ were then added for each receptor. The cumulative ELCR
and HI are provided in Table 5-2 for the EOD worker, Salt Lake boater, and Oasis resident.
5.4.3.3 For the offsite air exposures (EOD worker, Salt Lake boater, and Oasis resident), the calculated
cumulative ELCRs were within the target ELCR range of 1×10-6 to 1×10-4 and the HIs did not exceed the
SECTION 5 – AIR (40 CFR 264.601[C] AND R315-264-601)
5-4 PPS0829221639SLC
target HI of 1. The HI for EOD worker exposure was 1 due primarily to cadmium (the cadmium HQ was
also 1, contributing more than 90% of the cumulative HI of 1). However, cadmium in the original TTU air
emissions modeling of waste streams is believed to be from items previously (1997 and earlier)
processed in the burn pan. Cadmium is a relatively significant emission for medium cartridges and small
rockets (typical burn pan waste streams) with emission factors as high as 3×10-3 lb/lb net explosive
weight. Cadmium is not known to be a component of the large missile motors processed on the TTU.
These large missile motors are by far the largest waste stream processed on the TTU; over 20 million
pounds of large missile propellant have been processed on the TTU since 2000 and cadmium
concentrations in surface soil have remained essentially constant at ~ 1 mg/kg over that time. The burn
pan has been removed and has not been used since 1997, although contributions from burn pan waste
streams have not been removed from the predicted air emissions from the TTU. Removal of the
contribution of cadmium lowers the total HI for the EOD worker exposure by an order of magnitude to
0.1.
5.4.3.4 Based on evaluations of the air emissions, the results of the 2022 HHRSE show that cumulative
ELCRs and HIs from potential offsite air exposures resulting from continued OB/OD operations do not
indicate potential unacceptable human health risks; no modifications to Attachment 10B of the permit
are warranted at this time.
SECTION 5 – AIR (40 CFR 264.601[C] AND R315-264-601)
PPS0829221639SLC 5-5
Table 5-1. Intake and Exposure Parameters
Thermal Treatment Unit 2022 Human Health Risk Screen Evaluation
Air Emissions
Intake and Exposure Parameter Units
Current EOD
Worker
Current
Salt Lake
Boater
Current Oasis
Resident
Averaging Time, Cancer days 25,500 25,500 25,500
Averaging Time, Noncancer years 7,300 7,300 9,490
Exposure Frequency days per year 250 104 350
Exposure Time —No Wind Factor hours per day 1 24 24
Wind Factor—Fraction of Time Blowing
Toward Receptor
percent 3% 7% 10%
Final Exposure Time—Wind Factor
Incorporated
hours per day 0.027 1.6 2.3
Exposure Duration years 20 20 26
This page intentionally left blank.
SECTION 5 – AIR (40 CFR 264.601[C] AND R315-264-601)
PPS0829221639SLC 5-7
Table 5-2. Risk Summary for Hypothetical Offsite Air Exposures (Permit Tables 8, 9, and 10)
Thermal Treatment Unit 2022 Human Health Risk Screen Evaluation

EPC
(mg/m3) Toxicity Factors Exposure Scenario
Standard Name Chemical CAS No. Permit
Table 8
(Air_EOD)
Permit
Table 9
(Air_Rec)
Permit
Table 10
(Air_Res)
IUR
(µg/m3)-1 IUR Ref. RfC
(mg/m3)
RfC
Ref.
Current
EOD
Worker
Current
Salt Lake
Boater
Current
Oasis
Resident
ELCR
ELCR
Percent
Totala HQ
HQ
Percent
Totala ELCR
ELCR
Percent
Totala HQ
HQ
Percent
Totala ELCR
ELCR
Percent
Totala HQ
HQ Percent
Totala
1,1,1-
Trichloroethane Methyl chloroform 71-55-6 1.32E-04 1.74E-06 5.52E-07 -- -- 5 I -- 2.E-08 --
7.E-
09 --
1.E-
08
1,1,2,2-
Tetrachloroethane
1,1,2,2-
Tetrachoroethae 79-34-5 1.38E-04 1.82E-06 5.78E-07 0.000058 C -- -- 2.E-09 -- 6.E-10 -- 1.E-09 --
1,1,2-Trichloro-
1,2,2-
trifluoroethane Freon113 76-13-1 5.43E-06 7.13E-08 2.27E-08 -- -- 5 P -- 8.E-10 --
3.E-
10 --
4.E-
10
1,1-
Dichloroethene
Vinylidene
chloride 75-35-4 3.40E-05 4.47E-07 1.42E-07 -- -- 0.2 I -- 1.E-07 --
4.E-
08 --
7.E-
08
1,2,4-
Trimethylbenzene
1,2,4-
Trimethylbenzene 95-63-6 3.04E-04 3.99E-06 1.27E-06 -- -- 0.06 I -- 4.E-06 --
1.E-
06 --
2.E-
06
1,3,5-
Trimethylbenzene
1,3,5-
Trimethylbenzene 108-67-8 3.87E-06 5.09E-08 1.62E-08 -- -- 0.06 I -- 5.E-08 --
2.E-
08 --
2.E-
08
1,3-Butadiene 1,3-Butadiene 106-99-0 2.38E-04 3.12E-06 9.92E-07 0.00003 I 0.002 I 2.E-09 9.E-05 5.E-10
3.E-
05 1.E-09
5.E-
05
2,4,6-
Trinitrotoluene 2,4,6-TNT 118-96-7 3.89E-05 5.11E-07 1.63E-07 -- -- -- -- -- -- -- -- -- --
2,6-Dinitrotoluene 2,4-DNT 606-20-2 1.17E-05 1.54E-07 4.90E-08 -- -- -- -- -- -- -- -- -- --
2-
Nitrodiphenylamin
e
2-
Nitrodiphenylamin
e 119-75-5 1.82E-06 2.39E-08 7.61E-09 -- -- -- -- -- -- -- -- -- --
Allyl chloride Allyl chloride 107-05-1 2.30E-04 3.02E-06 9.61E-07 0.000006 C 0.001 I 3.E-10 2.E-04 1.E-10
6.E-
05 2.E-10
9.E-
05
Aluminum Aluminum 7429-90-5 2.38E-01 3.12E-03 9.92E-04 -- -- 0.005 P -- 4.E-02 3% --
1.E-
02 3% --
2.E-
02 3%
Antimony Antimony 7440-36-0 1.49E-03 1.96E-05 6.23E-06 -- -- 0.0003 A -- 4.E-03 --
1.E-
03 --
2.E-
03
Barium Barium 7440-39-3 4.11E-03 5.40E-05 1.72E-05 -- -- 0.0005 H -- 6.E-03 --
2.E-
03 --
3.E-
03
Benzene Benzene 71-43-2 7.90E-04 1.04E-05 3.30E-06 0.0000078 I 0.03 I 1.E-09 2.E-05 4.E-10
7.E-
06 9.E-10
1.E-
05
Benzo(a)anthracen
e
Benzo(a)anthracen
e 56-55-3 5.98E-07 7.85E-09 2.50E-09 0.00006 E -- -- 8.E-12 -- 3.E-12 -- 5.E-12 --
Benzo(a)pyrene Benzo(a)pyrene 50-32-8 7.76E-06 1.02E-07 3.24E-08 0.0006 I 0.000002 I 1.E-09 3.E-03 3.E-10
1.E-
03 7.E-10
1.E-
03
SECTION 5 – AIR (40 CFR 264.601[C] AND R315-264-601)
5-8 PPS0829221639SLC
Table 5-2. Risk Summary for Hypothetical Offsite Air Exposures (Permit Tables 8, 9, and 10)
Thermal Treatment Unit 2022 Human Health Risk Screen Evaluation
EPC
(mg/m3) Toxicity Factors Exposure Scenario
Standard Name Chemical CAS No. Permit
Table 8
(Air_EOD)
Permit
Table 9
(Air_Rec)
Permit
Table 10
(Air_Res)
IUR
(µg/m3)-1 IUR Ref. RfC
(mg/m3)
RfC
Ref.
Current
EOD
Worker
Current
Salt Lake
Boater
Current
Oasis
Resident
ELCR
ELCR
Percent
Totala HQ
HQ
Percent
Totala ELCR
ELCR
Percent
Totala HQ
HQ
Percent
Totala ELCR
ELCR
Percent
Totala HQ
HQ Percent
Totala
bis(2-
ethylhexyl)phthala
te
bis(2-
ethylhexyl)phthala
te 117-81-7 6.24E-05 8.20E-07 5.22E-11 0.0000024 C -- -- 3.E-11 -- 1.E-11 -- 4.E-15 --
Bromomethane Methyl Bromide 74-83-9 6.54E-05 8.59E-07 2.73E-07 -- -- 0.005 I -- 1.E-05 --
3.E-
06 --
5.E-
06
Butylbenzylphthala
te
Butylbenzylphthal
ate 85-68-7 4.26E-06 5.59E-08 1.78E-08 -- -- -- -- -- -- -- -- -- --
Cadmium Cadmium 7440-43-9 1.52E-02 1.99E-04 6.34E-05 0.0018 I 0.00001 A 6.E-06 94% 1.E+00 92% 2.E-06 94%
4.E-
01 92% 4.E-06 94%
6.E-
01 92%
Calcium Calcium 7440-70-2 2.58E-02 3.39E-04 1.08E-04 -- -- -- -- -- -- -- -- -- --
Carbon
tetrachloride
Carbon
tetrachloride 56-23-5 8.30E-06 1.09E-07 3.47E-08 0.000006 I 0.1 I 1.E-11 6.E-08 4.E-12
2.E-
08 7.E-12
3.E-
08
Chloroethane Ethyl chloride 75-00-3 2.46E-05 3.23E-07 1.03E-07 -- -- 4 P -- 5.E-09 --
2.E-
09 --
2.E-
09
Chloromethane Methyl chloride 74-87-3 3.44E-05 4.51E-07 1.43E-07 -- -- 0.09 I -- 3.E-07 --
1.E-
07 --
1.E-
07
Chromium Chromium 7440-47-3 1.06E-03 1.39E-05 4.42E-06 -- -- -- -- -- -- -- -- -- --
Chrysene Chrysene 218-01-9 5.73E-07 7.52E-09 2.39E-09 0.0000006 E -- -- 8.E-14 -- 2.E-14 -- 5.E-14 --
Copper Copper 7440-50-8 4.88E-02 6.41E-04 2.04E-04 -- -- -- -- -- -- -- -- -- --
Dichlorodifluorom
ethane Freon12 75-71-8 1.24E-05 1.63E-07 5.19E-08 -- -- 0.1 X -- 1.E-07 --
3.E-
08 --
5.E-
08
Diethylphthalate Diethylphthalate 84-66-2 1.03E-02 1.35E-04 4.28E-05 -- -- -- -- -- -- -- -- -- --
Dimethylphthalate Dimethylphthalate 131-11-3 1.29E-07 1.69E-09 5.38E-10 -- -- -- -- -- -- -- -- -- --
Di-n-
butylphthalate
Di-n-
butylphthalate 84-74-2 2.73E-04 3.58E-06 1.14E-06 -- -- -- -- -- -- -- -- -- --
Di-n-
octylphthalate
Di-n-
octylphthalate 117-84-0 1.48E-05 1.95E-07 6.20E-08 -- -- -- -- -- -- -- -- -- --
Ethylbenzene Ethylbenzene 100-41-4 2.52E-05 3.31E-07 1.05E-07 0.0000025 C 1 I 1.E-11 2.E-08 4.E-12
6.E-
09 9.E-12
1.E-
08
Fluoranthene Fluoranthene 206-44-0 2.05E-06 2.69E-08 8.57E-09 -- -- -- -- -- -- -- -- -- --
Fluorene Fluorene 86-73-7 2.58E-07 3.39E-09 1.08E-09 -- -- -- -- -- -- -- -- -- --
Hexachlorobenzen
e
Hexachlorobenzen
e 118-74-1 2.13E-05 2.80E-07 8.90E-08 0.00046 I -- -- 2.E-09 -- 7.E-10 -- 1.E-09 --
SECTION 5 – AIR (40 CFR 264.601[C] AND R315-264-601)
PPS0829221639SLC 5-9
Table 5-2. Risk Summary for Hypothetical Offsite Air Exposures (Permit Tables 8, 9, and 10)
Thermal Treatment Unit 2022 Human Health Risk Screen Evaluation

EPC
(mg/m3) Toxicity Factors Exposure Scenario
Standard Name Chemical CAS No. Permit
Table 8
(Air_EOD)
Permit
Table 9
(Air_Rec)
Permit
Table 10
(Air_Res)
IUR
(µg/m3)-1 IUR Ref. RfC
(mg/m3)
RfC
Ref.
Current
EOD
Worker
Current
Salt Lake
Boater
Current
Oasis
Resident
ELCR
ELCR
Percent
Totala HQ
HQ
Percent
Totala ELCR
ELCR
Percent
Totala HQ
HQ
Percent
Totala ELCR
ELCR
Percent
Totala HQ
HQ Percent
Totala
Hexahydro-1,3,5-
trinitro-1,3,5-
triazine
Hexahydro-
1,3,5…(RDX) 121-82-4 7.63E-02 1.00E-03 3.18E-04 -- -- -- -- -- -- -- -- -- --
Lead Lead 7439-92-1 2.13E-02 2.80E-04 8.90E-05 -- -- -- -- -- -- -- -- -- --
m,p-Xylenes m,p-Xylene 1330-20-7 1.90E-05 2.49E-07 7.92E-08 -- -- 0.1 I -- 1.E-07 --
5.E-
08 --
7.E-
08
Mercury Mercury 7439-97-6 1.94E-06 2.55E-08 8.12E-09 -- -- 0.0003 I -- 5.E-06 --
2.E-
06 --
2.E-
06
Methane Methane 74-82-8 3.17E-03 4.17E-05 1.32E-05 -- -- -- -- -- -- -- -- -- --
Methylene
chloride Dichloromethane 75-09-2 3.39E-03 4.46E-05 1.42E-05 1E-08 I 0.6 I 7.E-12 4.E-06 2.E-12
1.E-
06 5.E-12
2.E-
06
Naphthalene Naphthalene 91-20-3 8.98E-06 1.18E-07 3.75E-08 0.000034 C 0.003 I 7.E-11 2.E-06 2.E-11
7.E-
07 4.E-11
1.E-
06
Nickel Nickel 7440-02-0 6.82E-03 8.95E-05 2.85E-05 0.00026 C 0.00009 A 4.E-07 6% 6.E-02 5% 1.E-07 6%
2.E-
02 5% 3.E-07 6%
3.E-
02 5%
Nitroglycerin Nitroglycerine 55-63-0 1.71E-05 2.24E-07 7.13E-08 -- -- -- -- -- -- -- -- -- --
Octahydro-1,3,5,7-
tetranitro-1,3,5,7-
tetrazocine
Octahydro-
1,3,5,7…(HMX) 2691-41-0 5.81E-03 7.63E-05 2.43E-05 -- -- -- -- -- -- -- -- -- --
o-Xylene o-Xylene 95-47-6 9.18E-06 1.21E-07 3.83E-08 -- -- 0.1 G -- 7.E-08 --
2.E-
08 --
4.E-
08
Pentaerythritoltetr
anitrate
Pentaerythritol
tetranitrate (PETN) 78-11-5 5.81E-03 7.63E-05 2.43E-05 -- -- -- -- -- -- -- -- -- --
p-Ethyltoluene p-Ethyltoluene 622-96-8 9.99E-06 1.31E-07 4.17E-08 -- -- -- -- -- -- -- -- -- --
Phenanthrene Phenanthrene 85-01-8 1.59E-06 2.08E-08 6.62E-09 -- -- -- -- -- -- -- -- -- --
Phenol Phenol 108-95-2 1.08E-05 1.42E-07 4.51E-08 -- -- 0.2 C -- 4.E-08 --
1.E-
08 --
2.E-
08
Potassium Potassium 7440-09-7 2.89E-01 3.79E-03 1.21E-03 -- -- -- -- -- -- -- -- -- --
Pyrene Pyrene 129-00-0 8.17E-06 1.07E-07 3.41E-08 -- -- -- -- -- -- -- -- -- --
Sodium Sodium 7440-23-5 1.26E-02 1.65E-04 5.24E-05 -- -- -- -- -- -- -- -- -- --
Styrene Styrene 100-42-5 1.98E-04 2.61E-06 8.28E-07 -- -- 1 I -- 2.E-07 --
5.E-
08 --
8.E-
08
Titanium Titanium 7440-32-6 6.17E-04 8.10E-06 2.58E-06 -- -- -- -- -- -- -- -- -- --
SECTION 5 – AIR (40 CFR 264.601[C] AND R315-264-601)
5-10 PPS0829221639SLC
Table 5-2. Risk Summary for Hypothetical Offsite Air Exposures (Permit Tables 8, 9, and 10)
Thermal Treatment Unit 2022 Human Health Risk Screen Evaluation
EPC
(mg/m3) Toxicity Factors Exposure Scenario
Standard Name Chemical CAS No. Permit
Table 8
(Air_EOD)
Permit
Table 9
(Air_Rec)
Permit
Table 10
(Air_Res)
IUR
(µg/m3)-1 IUR Ref. RfC
(mg/m3)
RfC
Ref.
Current
EOD
Worker
Current
Salt Lake
Boater
Current
Oasis
Resident
ELCR
ELCR
Percent
Totala HQ
HQ
Percent
Totala ELCR
ELCR
Percent
Totala HQ
HQ
Percent
Totala ELCR
ELCR
Percent
Totala HQ
HQ Percent
Totala
Toluene Toluene 108-88-3 1.99E-04 2.62E-06 8.34E-07 -- -- 5 I -- 3.E-08 --
1.E-
08 --
2.E-
08
Trichlorofluoromet
hane Freon11 75-69-4 1.95E-05 2.56E-07 8.14E-08 -- -- -- -- -- -- -- -- -- --
Vinyl Chloride Vinyl chloride 75-01-4 1.67E-05 2.20E-07 6.99E-08 0.0000044 I 0.08 A 2.E-11 2.E-07 5.E-12
5.E-
08 1.E-11
8.E-
08
Zinc Zinc 7440-66-6 4.43E-02 5.82E-04 1.85E-04 -- -- -- -- -- -- -- -- -- --
Receptor
Total 6.E-06 1.E+00 2.E-06
4.E-
01 4.E-06
6.E-
01
Notes:
Bolded values indicate an ELCR > 10-6 or an HQ > 1.
a Percent contribution to receptor total ELCR and HI greater than or equal to 1% is presented.
References:
A = ATSDR (Agency for Toxic Substances and Disease Registry)
C = California Environmental Protection Agency
E = Values were derived based on relative potency factors to benzo(a)pyrene.
H = HEAST (Health Effects Assessment Summary Tables)
I = IRIS (Integrated Risk Information System)
P = PPRTV (Provisional Peer-reviewed Toxicity Values)
G = See RSL User's Guide
X = PPRTV Appendix Screening Value
SECTION 6
PPS0829221639SLC 6-1
References
CH2M HILL, Inc. 2006. Colloidal Borescope, Aquifer Age Dating, and Environmental Tracer Results,
Landfill 5 and Thermal Treatment Unit. Utah Test and Training Range, Utah. February.
CH2M HILL, Inc. 2009. Utah Test and Training Range Thermal Treatment Unit, 2009 Ecological Risk
Screen Evaluation. Hill Air Force Base, Utah. Final. September.
CH2M HILL, Inc. 2011a. Utah Test and Training Range Thermal Treatment Unit, 2011 Ecological Risk
Screen Evaluation. Hill Air Force Base, Utah. Final. October.
CH2M HILL, Inc. 2011b. Hill Air Force Base Analytical Data Validation and Field Summary Report for the
2010 Annual Thermal Treatment Unit Soil Sampling Event. Hill Air Force Base, Utah. Final.
March.
CH2M HILL, Inc. 2013. Utah Test and Training Range Thermal Treatment Unit 2013 Human Health Risk
Screen Evaluation. Hill Air Force Base, Utah. July.
CH2M HILL, Inc. 2020. Analytical Data Validation and Field Summary Report for the 2019 Annual Thermal
Treatment Unit Soil Sampling Event. Hill Air Force Base, Utah. Final. May.
CH2M HILL, Inc. 2022. Analytical Data Validation and Field Summary Report for the 2021 Annual Thermal
Treatment Unit Soil Sampling Event. Hill Air Force Base, Utah. Final. January.
Hill Air Force Base (Hill AFB). 2005. Utah Test and Training Range—Waste Characterization Evaluation
for the Thermal Treatment Unit.
U.S. Environmental Protection Agency (EPA). 2003. Human Health Toxicity Values in Superfund Risk
Assessments. OSWER Directive 9285.7-53. Office of Solid Waste and Emergency Response.
December 5.
U.S. Environmental Protection Agency (EPA). 2014. Human Health Evaluation Manual, Supplemental
Guidance: Update of Standard Default Exposure Factors. OSWER Directive 9200.1-120.
February.
U.S. Environmental Protection Agency (EPA). 2022a. Regional Screening Levels for Chemical
Contaminants at Superfund Sites. https://www.epa.gov/risk/regional-screening-levels-rsls.
U.S. Environmental Protection Agency (EPA). 2022b. Regional Screening Levels (RSLs) - User's Guide.
May. https://www.epa.gov/risk/regional-screening-levels-rsls-users-guide.
This page intentionally left blank.
Appendix A
Regional Screening Level Table
Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) May 2022
SFO
(mg/kg-day)-1
k
e
y
IUR
(ug/m3)-1
k
e
y
RfDo
(mg/kg-day)
k
e
y
RfCi
(mg/m3)
k
e
y
v
o
l mutagen GIABS ABSd
Csat
(mg/kg)Analyte CAS No.
Resident Soil
(mg/kg)key
Industrial Soil
(mg/kg)key
Resident Air
(ug/m3)key
Industrial Air
(ug/m3)key
Tapwater
(ug/L)key
MCL
(ug/L)
Risk-based
SSL
(mg/kg)key
MCL-based
SSL
(mg/kg)
3.0E-04 O 1 0.1 Acephate 30560-19-1 1.9E+01 n 2.5E+02 n 6.0E+00 n 1.3E-03 n
2.2E-06 I 9.0E-03 I V 1 1.1E+05 Acetaldehyde 75-07-0 1.1E+01 c**4.9E+01 c**1.3E+00 c**5.6E+00 c**2.6E+00 c**5.2E-04 c**
2.0E-02 I 1 0.1 Acetochlor 34256-82-1 1.3E+03 n 1.6E+04 n 3.5E+02 n 2.8E-01 n
9.0E-01 I V 1 1.1E+05 Acetone 67-64-1 7.0E+04 n 1.1E+06 nms 1.8E+04 n 3.7E+00 n
2.0E-03 X 1 0.1 Acetone Cyanohydrin 75-86-5 2.8E+06 nm 1.2E+07 nm 2.1E+00 n 8.8E+00 n
6.0E-02 I V 1 1.3E+05 Acetonitrile 75-05-8 8.1E+02 n 3.4E+03 n 6.3E+01 n 2.6E+02 n 1.3E+02 n 2.6E-02 n
1.0E-01 I V 1 2.5E+03 Acetophenone 98-86-2 7.8E+03 ns 1.2E+05 nms 1.9E+03 n 5.8E-01 n
3.8E+00 C 1.3E-03 C 1 0.1 Acetylaminofluorene, 2-53-96-3 1.4E-01 c 6.0E-01 c 2.2E-03 c 9.4E-03 c 1.6E-02 c 7.5E-05 c
5.0E-04 I 2.0E-05 I V 1 2.3E+04 Acrolein 107-02-8 1.4E-01 n 6.0E-01 n 2.1E-02 n 8.8E-02 n 4.2E-02 n 8.4E-06 n
5.0E-01 I 1.0E-04 I 2.0E-03 I 6.0E-03 I M 1 0.1 Acrylamide 79-06-1 2.4E-01 c 4.6E+00 c 1.0E-02 c 1.2E-01 c 5.0E-02 c 1.1E-05 c
5.0E-01 I 2.0E-04 P V 1 1.1E+05 Acrylic Acid 79-10-7 2.0E+01 n 8.3E+01 n 2.1E-01 n 8.8E-01 n 4.2E-01 n 8.5E-05 n
5.4E-01 I 6.8E-05 I 1.0E-02 A 2.0E-03 I V 1 1.1E+04 Acrylonitrile 107-13-1 2.5E-01 c*1.1E+00 c*4.1E-02 c*1.8E-01 c*5.2E-02 c*1.1E-05 c*
6.0E-03 P 1 0.1 Adiponitrile 111-69-3 8.5E+06 nm 3.6E+07 nm 6.3E+00 n 2.6E+01 n
5.6E-02 C 1.0E-02 I 1 0.1 Alachlor 15972-60-8 9.7E+00 c*4.1E+01 c 1.1E+00 c 2.0E+00 8.7E-04 c 1.6E-03
1.0E-03 I 1 0.1 Aldicarb 116-06-3 6.3E+01 n 8.2E+02 n 2.0E+01 n 3.0E+00 4.9E-03 n 7.5E-04
1.0E-03 I 1 0.1 Aldicarb Sulfone 1646-88-4 6.3E+01 n 8.2E+02 n 2.0E+01 n 2.0E+00 4.4E-03 n 4.4E-04
1 0.1 Aldicarb sulfoxide 1646-87-3 4.0E+00 8.8E-04
1.7E+01 I 4.9E-03 I 3.0E-05 I V 1 Aldrin 309-00-2 3.9E-02 c*1.8E-01 c 5.7E-04 c 2.5E-03 c 9.2E-04 c 1.5E-04 c
4.0E-03 P 1.0E-04 X V 1 1.1E+05 Allyl Alcohol 107-18-6 3.5E+00 n 1.5E+01 n 1.0E-01 n 4.4E-01 n 2.1E-01 n 4.2E-05 n
2.1E-02 C 6.0E-06 C 1.0E-03 I V 1 1.4E+03 Allyl Chloride 107-05-1 7.2E-01 c**3.2E+00 c**4.7E-01 c**2.0E+00 c**7.3E-01 c**2.3E-04 c**
1.0E+00 P 5.0E-03 P 1 Aluminum 7429-90-5 7.7E+04 n 1.1E+06 nm 5.2E+00 n 2.2E+01 n 2.0E+04 n 3.0E+04 n
4.0E-04 I 1 Aluminum Phosphide 20859-73-8 3.1E+01 n 4.7E+02 n 8.0E+00 n
9.0E-03 I 1 0.1 Ametryn 834-12-8 5.7E+02 n 7.4E+03 n 1.5E+02 n 1.6E-01 n
2.1E+01 C 6.0E-03 C 1 0.1 Aminobiphenyl, 4-92-67-1 2.6E-02 c 1.1E-01 c 4.7E-04 c 2.0E-03 c 3.0E-03 c 1.5E-05 c
8.0E-02 P 1 0.1 Aminophenol, m-591-27-5 5.1E+03 n 6.6E+04 n 1.6E+03 n 6.1E-01 n
4.0E-03 X 1 0.1 Aminophenol, o-95-55-6 2.5E+02 n 3.3E+03 n 7.9E+01 n 3.0E-02 n
2.0E-02 P 1 0.1 Aminophenol, p-123-30-8 1.3E+03 n 1.6E+04 n 4.0E+02 n 1.5E-01 n
2.5E-03 I 1 0.1 Amitraz 33089-61-1 1.6E+02 n 2.1E+03 n 8.2E+00 n 4.2E+00 n
5.0E-01 I V 1 Ammonia 7664-41-7 5.2E+02 n 2.2E+03 n
2.0E-03 X 1 0.1 Ammonium Picrate 131-74-8 1.3E+02 n 1.6E+03 n 4.0E+01 n 1.9E-01 n
2.0E-01 I 1 Ammonium Sulfamate 7773-06-0 1.6E+04 n 2.3E+05 nm 4.0E+03 n
3.0E-03 X V 1 1.4E+04 Amyl Alcohol, tert-75-85-4 8.2E+01 n 3.4E+02 n 3.1E+00 n 1.3E+01 n 6.3E+00 n 1.3E-03 n
5.7E-03 I 1.6E-06 C 7.0E-03 P 1.0E-03 I 1 0.1 Aniline 62-53-3 9.5E+01 c**4.0E+02 c*1.0E+00 n 4.4E+00 n 1.3E+01 c*4.6E-03 c*
4.0E-02 P 2.0E-03 X 1 0.1 Anthraquinone, 9,10-84-65-1 1.4E+01 c**5.7E+01 c*1.4E+00 c*1.4E-02 c*
4.0E-04 I 3.0E-04 A 0.15 Antimony (metallic)7440-36-0 3.1E+01 n 4.7E+02 n 3.1E-01 n 1.3E+00 n 7.8E+00 n 6.0E+00 3.5E-01 n 2.7E-01
5.0E-04 H 0.15 Antimony Pentoxide 1314-60-9 3.9E+01 n 5.8E+02 n 9.7E+00 n
4.0E-04 H 0.15 Antimony Tetroxide 1332-81-6 3.1E+01 n 4.7E+02 n 7.8E+00 n
2.0E-04 I 0.15 Antimony Trioxide 1309-64-4 2.8E+05 nm 1.2E+06 nm 2.1E-01 n 8.8E-01 n
1.5E+00 I 4.3E-03 I 3.0E-04 I 1.5E-05 C 1 0.03 Arsenic, Inorganic 7440-38-2 6.8E-01 c*R 3.0E+00 cR 6.5E-04 c*2.9E-03 c*5.2E-02 c 1.0E+01 1.5E-03 c 2.9E-01
3.5E-06 C 5.0E-05 I 1 Arsine 7784-42-1 2.7E-01 n 4.1E+00 n 5.2E-02 n 2.2E-01 n 7.0E-02 n
1 Asbestos (units in fibers)1332-21-4 7.0E+06(G)
3.6E-02 O 1 0.1 Asulam 3337-71-1 2.3E+03 n 3.0E+04 n 7.2E+02 n 1.8E-01 n
2.3E-01 C 3.0E-03 A 1 0.1 Atrazine 1912-24-9 2.4E+00 c*1.0E+01 c 3.0E-01 c 3.0E+00 2.0E-04 c 1.9E-03
8.8E-01 C 2.5E-04 C 1 0.1 Auramine 492-80-8 6.2E-01 c 2.6E+00 c 1.1E-02 c 4.9E-02 c 7.8E-02 c 7.1E-04 c
4.0E-04 I 1 0.1 Avermectin B1 65195-55-3 2.5E+01 n 3.3E+02 n 8.0E+00 n 1.4E+01 n
3.0E-03 A 1.0E-02 A 1 0.1 Azinphos-methyl 86-50-0 1.9E+02 n 2.5E+03 n 1.0E+01 n 4.4E+01 n 5.6E+01 n 1.7E-02 n
1.1E-01 I 3.1E-05 I V 1 Azobenzene 103-33-3 5.6E+00 c 2.6E+01 c 9.1E-02 c 4.0E-01 c 1.2E-01 c 9.3E-04 c
1.0E+00 P 7.0E-06 P 1 0.1 Azodicarbonamide 123-77-3 8.6E+03 n 4.0E+04 n 7.3E-03 n 3.1E-02 n 2.0E+04 n 6.8E+00 n
2.0E-01 I 5.0E-04 H 0.07 Barium 7440-39-3 1.5E+04 n 2.2E+05 nm 5.2E-01 n 2.2E+00 n 3.8E+03 n 2.0E+03 1.6E+02 n 8.2E+01
5.0E-03 O V 1 Benfluralin 1861-40-1 3.9E+02 n 5.8E+03 n 2.8E+01 n 9.4E-01 n
5.0E-02 I 1 0.1 Benomyl 17804-35-2 3.2E+03 n 4.1E+04 n 9.7E+02 n 8.5E-01 n
2.0E-01 I 1 0.1 Bensulfuron-methyl 83055-99-6 1.3E+04 n 1.6E+05 nm 3.9E+03 n 1.0E+00 n
3.0E-02 I 1 0.1 Bentazon 25057-89-0 1.9E+03 n 2.5E+04 n 5.7E+02 n 1.2E-01 n
4.0E-03 P 1.0E-01 I V 1 1.2E+03 Benzaldehyde 100-52-7 1.7E+02 c*8.2E+02 c 1.9E+01 c 4.1E-03 c
5.5E-02 I 7.8E-06 I 4.0E-03 I 3.0E-02 I V 1 1.8E+03 Benzene 71-43-2 1.2E+00 c*5.1E+00 c*3.6E-01 c*1.6E+00 c*4.6E-01 c*5.0E+00 2.3E-04 c*2.6E-03
1.0E-01 X 3.0E-04 X 1 0.1 Benzenediamine-2-methyl sulfate, 1,4-6369-59-1 5.4E+00 c**2.3E+01 c*7.8E-01 c**2.2E-04 c**
1.0E-03 P V 1 1.3E+03 Benzenethiol 108-98-5 7.8E+01 n 1.2E+03 n 1.7E+01 n 1.1E-02 n
2.3E+02 I 6.7E-02 I 3.0E-03 I M 1 0.1 Benzidine 92-87-5 5.3E-04 c 1.0E-02 c 1.5E-05 c 1.8E-04 c 1.1E-04 c 2.8E-07 c
4.0E+00 I 1 0.1 Benzoic Acid 65-85-0 2.5E+05 nm 3.3E+06 nm 7.5E+04 n 1.5E+01 n
1.3E+01 I V 1 3.2E+02 Benzotrichloride 98-07-7 5.3E-02 c 2.5E-01 c 3.0E-03 c 6.6E-06 c
1.0E-01 P 1 0.1 Benzyl Alcohol 100-51-6 6.3E+03 n 8.2E+04 n 2.0E+03 n 4.8E-01 n
1.7E-01 I 4.9E-05 C 2.0E-03 P 1.0E-03 P V 1 1.5E+03 Benzyl Chloride 100-44-7 1.1E+00 c*4.8E+00 c*5.7E-02 c*2.5E-01 c*8.9E-02 c*9.8E-05 c*
2.4E-03 I 2.0E-03 I 2.0E-05 I 0.007 Beryllium and compounds 7440-41-7 1.6E+02 n 2.3E+03 n 1.2E-03 c*5.1E-03 c*2.5E+01 n 4.0E+00 1.9E+01 n 3.2E+00
9.0E-03 P 1 0.1 Bifenox 42576-02-3 5.7E+02 n 7.4E+03 n 1.0E+02 n 7.6E-01 n
1.5E-02 I 1 0.1 Biphenthrin 82657-04-3 9.5E+02 n 1.2E+04 n 3.0E+02 n 1.4E+03 n
8.0E-03 I 5.0E-01 I 4.0E-04 X V 1 Biphenyl, 1,1'-92-52-4 4.7E+01 n 2.0E+02 n 4.2E-01 n 1.8E+00 n 8.3E-01 n 8.7E-03 n
4.0E-02 I V 1 1.0E+03 Bis(2-chloro-1-methylethyl) ether 108-60-1 3.1E+03 ns 4.7E+04 ns 7.1E+02 n 2.6E-01 n
3.0E-03 P 1 0.1 Bis(2-chloroethoxy)methane 111-91-1 1.9E+02 n 2.5E+03 n 5.9E+01 n 1.3E-02 n
1.1E+00 I 3.3E-04 I V 1 5.1E+03 Bis(2-chloroethyl)ether 111-44-4 2.3E-01 c 1.0E+00 c 8.5E-03 c 3.7E-02 c 1.4E-02 c 3.6E-06 c
2.2E+02 I 6.2E-02 I V 1 4.2E+03 Bis(chloromethyl)ether 542-88-1 8.3E-05 c 3.6E-04 c 4.5E-05 c 2.0E-04 c 7.2E-05 c 1.7E-08 c
5.0E-02 I 1 0.1 Bisphenol A 80-05-7 3.2E+03 n 4.1E+04 n 7.7E+02 n 5.8E+01 n
2.0E-01 I 2.0E-02 H 1 Boron And Borates Only 7440-42-8 1.6E+04 n 2.3E+05 nm 2.1E+01 n 8.8E+01 n 4.0E+03 n 1.3E+01 n
2.0E+00 P 2.0E-02 P V 1 Boron Trichloride 10294-34-5 1.6E+05 nm 2.3E+06 nm 2.1E+01 n 8.8E+01 n 4.2E+01 n
4.0E-02 C 1.3E-02 C V 1 Boron Trifluoride 7637-07-2 3.1E+03 n 4.7E+04 n 1.4E+01 n 5.7E+01 n 2.6E+01 n
7.0E-01 I 4.0E-03 I 1 Bromate 15541-45-4 9.9E-01 c 4.7E+00 c 1.1E-01 c 1.0E+01 8.5E-04 c 7.7E-02
1.0E-04 X 6.0E-05 X V 1 2.4E+03 Bromo-2-chloroethane, 1-107-04-0 3.5E-01 n 1.5E+00 n 6.3E-02 n 2.6E-01 n 1.2E-01 n 3.3E-05 n
3.0E-04 X V 1 9.0E+02 Bromo-3-fluorobenzene, 1-1073-06-9 2.3E+01 n 3.5E+02 n 4.9E+00 n 4.7E-03 n
3.0E-04 X V 1 3.2E+02 Bromo-4-fluorobenzene, 1-460-00-4 2.3E+01 n 3.5E+02 ns 4.6E+00 n 4.4E-03 n
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; D = OW; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; W = TEF applied; E = RPF applied; G = user's guide Section 5; M = mutagen; V = volatile; R = RBA applied ; c = cancer; n = noncancer; * = where: n SL < 100X c SL; ** = where n SL < 10X c SL; SSL values are based on
DAF=1; m = ceiling limit exceeded; s = Csat exceeded.
Toxicity and Chemical-specific Information Contaminant Screening Levels Protection of Groundwater SSLs
Page 1 of 11
TR
=
1
E
-
0
6

TH
Q
=
1
.
0
Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) May 2022
SFO
(mg/kg-day)-1
k
e
y
IUR
(ug/m3)-1
k
e
y
RfDo
(mg/kg-day)
k
e
y
RfCi
(mg/m3)
k
e
y
v
o
l mutagen GIABS ABSd
Csat
(mg/kg)Analyte CAS No.
Resident Soil
(mg/kg)key
Industrial Soil
(mg/kg)key
Resident Air
(ug/m3)key
Industrial Air
(ug/m3)key
Tapwater
(ug/L)key
MCL
(ug/L)
Risk-based
SSL
(mg/kg)key
MCL-based
SSL
(mg/kg)
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; D = OW; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; W = TEF applied; E = RPF applied; G = user's guide Section 5; M = mutagen; V = volatile; R = RBA applied ; c = cancer; n = noncancer; * = where: n SL < 100X c SL; ** = where n SL < 10X c SL; SSL values are based on
DAF=1; m = ceiling limit exceeded; s = Csat exceeded.
Toxicity and Chemical-specific Information Contaminant Screening Levels Protection of Groundwater SSLs
1 0.1 Bromoacetic acid 79-08-3 6.0E+01(G)1.2E-02
8.0E-03 I 6.0E-02 I V 1 6.8E+02 Bromobenzene 108-86-1 2.9E+02 n 1.8E+03 ns 6.3E+01 n 2.6E+02 n 6.2E+01 n 4.2E-02 n
4.0E-02 X V 1 4.0E+03 Bromochloromethane 74-97-5 1.5E+02 n 6.3E+02 n 4.2E+01 n 1.8E+02 n 8.3E+01 n 2.1E-02 n
6.2E-02 I 3.7E-05 C 8.0E-03 P V 1 9.3E+02 Bromodichloromethane 75-27-4 2.9E-01 c 1.3E+00 c 7.6E-02 c 3.3E-01 c 1.3E-01 c 8.0E+01(G)3.6E-05 c 2.2E-02
7.9E-03 I 1.1E-06 I 2.0E-02 I V 1 9.2E+02 Bromoform 75-25-2 1.9E+01 c*8.6E+01 c 2.6E+00 c 1.1E+01 c 3.3E+00 c 8.0E+01(G)8.7E-04 c 2.1E-02
1.4E-03 I 5.0E-03 I V 1 3.6E+03 Bromomethane 74-83-9 6.8E+00 n 3.0E+01 n 5.2E+00 n 2.2E+01 n 7.5E+00 n 1.9E-03 n
5.0E-03 H V 1 Bromophos 2104-96-3 3.9E+02 n 5.8E+03 n 3.5E+01 n 1.5E-01 n
1.0E-01 A V 1 9.7E+02 Bromopropane, 1-106-94-5 2.2E+02 n 9.4E+02 n 1.0E+02 n 4.4E+02 n 2.1E+02 n 6.4E-02 n
1.0E-01 O 1.5E-02 O 1 0.1 Bromoxynil 1689-84-5 5.3E+00 c 2.2E+01 c 6.1E-01 c 5.2E-04 c
1.0E-01 O 1.5E-02 O V 1 Bromoxynil Octanoate 1689-99-2 6.7E+00 c 3.2E+01 c 2.4E-01 c 2.1E-03 c
6.0E-01 C 3.0E-05 I 2.0E-03 I V 1 6.7E+02 Butadiene, 1,3-106-99-0 7.6E-02 c*3.3E-01 c*9.4E-02 c*4.1E-01 c*7.1E-02 c*3.9E-05 c*
1.0E-01 I V 1 7.6E+03 Butanol, N-71-36-3 7.8E+03 ns 1.2E+05 nms 2.0E+03 n 4.1E-01 n
5.0E-04 I 4.0E-01 I 5.0E+00 I V 1 Butyl Alcohol, t-75-65-0 1.4E+03 c*6.5E+03 c*5.2E+03 n 2.2E+04 n 1.5E+02 c*3.2E-02 c*
2.0E+00 P 3.0E+01 P V 1 2.1E+04 Butyl alcohol, sec-78-92-2 1.3E+05 nms 1.5E+06 nms 3.1E+04 n 1.3E+05 n 2.4E+04 n 5.0E+00 n
5.0E-02 I V 1 Butylate 2008-41-5 3.9E+03 n 5.8E+04 n 4.6E+02 n 4.5E-01 n
2.0E-04 C 5.7E-08 C 1 0.1 Butylated hydroxyanisole 25013-16-5 2.7E+03 c 1.1E+04 c 4.9E+01 c 2.2E+02 c 1.5E+02 c 2.9E-01 c
3.6E-03 P 3.0E-01 P 1 0.1 Butylated hydroxytoluene 128-37-0 1.5E+02 c 6.4E+02 c 3.4E+00 c 1.0E-01 c
5.0E-02 P V 1 1.1E+02 Butylbenzene, n-104-51-8 3.9E+03 ns 5.8E+04 ns 1.0E+03 n 3.2E+00 n
1.0E-01 X V 1 1.5E+02 Butylbenzene, sec-135-98-8 7.8E+03 ns 1.2E+05 nms 2.0E+03 n 5.9E+00 n
1.0E-01 X V 1 1.8E+02 Butylbenzene, tert-98-06-6 7.8E+03 ns 1.2E+05 nms 6.9E+02 n 1.6E+00 n
2.0E-02 A 1 0.1 Cacodylic Acid 75-60-5 1.3E+03 n 1.6E+04 n 4.0E+02 n 1.1E-01 n
1.8E-03 I 1.0E-04 A 1.0E-05 A 0.025 0.001 Cadmium (Diet)7440-43-9 7.1E+00 n 1.0E+02 n 1.6E-03 c**6.8E-03 c**
1.8E-03 I 1.0E-04 A 1.0E-05 A 0.05 0.001 Cadmium (Water)7440-43-9 1.6E-03 c**6.8E-03 c**1.8E+00 n 5.0E+00 1.4E-01 n 3.8E-01
5.0E-01 I 2.2E-03 C 1 0.1 Caprolactam 105-60-2 3.1E+04 n 4.0E+05 nm 2.3E+00 n 9.6E+00 n 9.9E+03 n 2.5E+00 n
1.5E-01 C 4.3E-05 C 2.0E-03 I 1 0.1 Captafol 2425-06-1 3.6E+00 c*1.5E+01 c 6.5E-02 c 2.9E-01 c 4.0E-01 c*7.1E-04 c*
2.3E-03 C 6.6E-07 C 1.3E-01 I 1 0.1 Captan 133-06-2 2.4E+02 c*1.0E+03 c 4.3E+00 c 1.9E+01 c 3.1E+01 c*2.2E-02 c*
1.0E-01 I 1 0.1 Carbaryl 63-25-2 6.3E+03 n 8.2E+04 n 1.8E+03 n 1.7E+00 n
5.0E-03 I 1 0.1 Carbofuran 1563-66-2 3.2E+02 n 4.1E+03 n 9.4E+01 n 4.0E+01 3.7E-02 n 1.6E-02
1.0E-01 I 7.0E-01 I V 1 7.4E+02 Carbon Disulfide 75-15-0 7.7E+02 ns 3.5E+03 ns 7.3E+02 n 3.1E+03 n 8.1E+02 n 2.4E-01 n
7.0E-02 I 6.0E-06 I 4.0E-03 I 1.0E-01 I V 1 4.6E+02 Carbon Tetrachloride 56-23-5 6.5E-01 c 2.9E+00 c 4.7E-01 c 2.0E+00 c 4.6E-01 c 5.0E+00 1.8E-04 c 1.9E-03
1.0E-01 P V 1 5.9E+03 Carbonyl Sulfide 463-58-1 6.7E+01 n 2.8E+02 n 1.0E+02 n 4.4E+02 n 2.1E+02 n 5.1E-01 n
1.0E-02 I 1 0.1 Carbosulfan 55285-14-8 6.3E+02 n 8.2E+03 n 5.1E+01 n 1.2E+00 n
1.0E-01 I 1 0.1 Carboxin 5234-68-4 6.3E+03 n 8.2E+04 n 1.9E+03 n 1.0E+00 n
9.0E-04 I 1 Ceric oxide 1306-38-3 1.3E+06 nm 5.4E+06 nm 9.4E-01 n 3.9E+00 n
1.0E-01 I V 1 Chloral Hydrate 302-17-0 7.8E+03 n 1.2E+05 nm 2.0E+03 n 4.0E-01 n
1.5E-02 I 1 0.1 Chloramben 133-90-4 9.5E+02 n 1.2E+04 n 2.9E+02 n 7.0E-02 n
1 0.1 Chloramines, Organic E701235 4.0E+03(G)
4.0E-01 H 1 0.1 Chloranil 118-75-2 1.3E+00 c 5.7E+00 c 1.8E-01 c 1.5E-04 c
5.0E-04 G V 1 0.04 Chlordane (alpha)5103-71-9 3.6E+01 n 5.0E+02 n 3.6E+00 n 4.9E-01 n
5.0E-04 G V 1 0.04 Chlordane (gamma)5103-74-2 3.6E+01 n 5.0E+02 n 1.0E+01 n 1.4E+00 n
3.5E-01 I 1.0E-04 I 5.0E-04 I 7.0E-04 I V 1 0.04 Chlordane (technical mixture)12789-03-6 1.7E+00 c*7.7E+00 c*2.8E-02 c*1.2E-01 c*2.0E-02 c*2.0E+00 2.7E-03 c*2.7E-01
1.0E+01 I 4.6E-03 C 3.0E-04 I 1 0.1 Chlordecone (Kepone)143-50-0 5.4E-02 c 2.3E-01 c 6.1E-04 c 2.7E-03 c 3.5E-03 c 1.2E-04 c
7.0E-04 A 1 0.1 Chlorfenvinphos 470-90-6 4.4E+01 n 5.7E+02 n 1.1E+01 n 3.1E-02 n
9.0E-02 O 1 0.1 Chlorimuron, Ethyl-90982-32-4 5.7E+03 n 7.4E+04 n 1.8E+03 n 6.0E-01 n
1.0E-01 I 1.5E-04 A V 1 2.8E+03 Chlorine 7782-50-5 1.8E-01 n 7.8E-01 n 1.5E-01 n 6.4E-01 n 3.0E-01 n 4.0E+03(G)1.5E-04 n 2.0E+00
3.0E-02 I 2.0E-04 I V 1 Chlorine Dioxide 10049-04-4 2.3E+03 n 3.4E+04 n 2.1E-01 n 8.8E-01 n 4.2E-01 n 8.0E+02(G)
3.0E-02 I 1 Chlorite (Sodium Salt)7758-19-2 2.3E+03 n 3.5E+04 n 6.0E+02 n 1.0E+03
5.0E+01 I V 1 1.2E+03 Chloro-1,1-difluoroethane, 1-75-68-3 5.4E+04 ns 2.3E+05 nms 5.2E+04 n 2.2E+05 n 1.0E+05 n 5.2E+01 n
3.0E-04 I 2.0E-02 H 2.0E-02 I V 1 7.9E+02 Chloro-1,3-butadiene, 2-126-99-8 1.0E-02 c 4.4E-02 c 9.4E-03 c 4.1E-02 c 1.9E-02 c 9.8E-06 c
4.6E-01 H 1 0.1 Chloro-2-methylaniline HCl, 4-3165-93-3 1.2E+00 c 5.0E+00 c 1.7E-01 c 1.5E-04 c
1.0E-01 P 7.7E-05 C 3.0E-03 X 1 0.1 Chloro-2-methylaniline, 4-95-69-2 5.4E+00 c*2.3E+01 c 3.6E-02 c 1.6E-01 c 7.0E-01 c*4.0E-04 c*
2.7E-01 X V 1 1.2E+04 Chloroacetaldehyde, 2-107-20-0 2.6E+00 c 1.2E+01 c 2.9E-01 c 5.8E-05 c
1 0.1 Chloroacetic Acid 79-11-8 6.0E+01(G)1.2E-02
3.0E-05 I 1 0.1 Chloroacetophenone, 2-532-27-4 4.3E+04 n 1.8E+05 nm 3.1E-02 n 1.3E-01 n
2.0E-01 P 5.0E-04 P 1 0.1 Chloroaniline, p-106-47-8 2.7E+00 c*1.1E+01 c*3.7E-01 c*1.6E-04 c*
2.0E-02 I 5.0E-02 P V 1 7.6E+02 Chlorobenzene 108-90-7 2.8E+02 n 1.3E+03 ns 5.2E+01 n 2.2E+02 n 7.8E+01 n 1.0E+02 5.3E-02 n 6.8E-02
1.0E-01 X 1 0.1 Chlorobenzene sulfonic acid, p-98-66-8 6.3E+03 n 8.2E+04 n 2.0E+03 n 4.7E-01 n
1.1E-01 C 3.1E-05 C 2.0E-02 I 1 0.1 Chlorobenzilate 510-15-6 4.9E+00 c 2.1E+01 c 9.1E-02 c 4.0E-01 c 3.1E-01 c 1.0E-03 c
3.0E-02 X 1 0.1 Chlorobenzoic Acid, p-74-11-3 1.9E+03 n 2.5E+04 n 5.1E+02 n 1.3E-01 n
8.6E-06 C 3.0E-03 P 3.0E-01 P V 1 2.9E+02 Chlorobenzotrifluoride, 4-98-56-6 2.2E+00 c*9.6E+00 c 3.3E-01 c 1.4E+00 c 6.5E-01 c*2.3E-03 c*
4.0E-02 P V 1 7.3E+02 Chlorobutane, 1-109-69-3 3.1E+03 ns 4.7E+04 ns 6.4E+02 n 2.6E-01 n
5.0E+01 I V 1 1.7E+03 Chlorodifluoromethane 75-45-6 4.9E+04 ns 2.1E+05 nms 5.2E+04 n 2.2E+05 n 1.0E+05 n 4.3E+01 n
2.0E-02 P V 1 1.1E+05 Chloroethanol, 2-107-07-3 1.6E+03 n 2.3E+04 n 4.0E+02 n 8.1E-02 n
3.1E-02 C 2.3E-05 I 1.0E-02 I 9.8E-02 A V 1 2.5E+03 Chloroform 67-66-3 3.2E-01 c 1.4E+00 c 1.2E-01 c 5.3E-01 c 2.2E-01 c 8.0E+01(G)6.1E-05 c 2.2E-02
9.0E-02 I V 1 1.3E+03 Chloromethane 74-87-3 1.1E+02 n 4.6E+02 n 9.4E+01 n 3.9E+02 n 1.9E+02 n 4.9E-02 n
2.4E+00 C 6.9E-04 C V 1 9.3E+03 Chloromethyl Methyl Ether 107-30-2 2.0E-02 c 8.9E-02 c 4.1E-03 c 1.8E-02 c 6.5E-03 c 1.4E-06 c
3.0E-01 P 3.0E-03 P 1.0E-05 X 1 0.1 Chloronitrobenzene, o-88-73-3 1.8E+00 c 7.7E+00 c 1.0E-02 n 4.4E-02 n 2.4E-01 c 2.2E-04 c
6.0E-02 P 7.0E-04 P 2.0E-03 P 1 0.1 Chloronitrobenzene, p-100-00-5 9.0E+00 c**3.8E+01 c*2.1E+00 n 8.8E+00 n 1.2E+00 c*1.1E-03 c*
5.0E-03 I V 1 2.7E+04 Chlorophenol, 2-95-57-8 3.9E+02 n 5.8E+03 n 9.1E+01 n 8.9E-02 n
4.0E-04 C V 1 6.2E+02 Chloropicrin 76-06-2 2.0E+00 n 8.2E+00 n 4.2E-01 n 1.8E+00 n 8.3E-01 n 2.5E-04 n
1.7E-02 C 1.5E-02 I 1 0.1 Chlorothalonil 1897-45-6 3.2E+01 c*1.4E+02 c*4.0E+00 c*9.0E-03 c*
2.0E-02 I V 1 9.1E+02 Chlorotoluene, o-95-49-8 1.6E+03 ns 2.3E+04 ns 2.4E+02 n 2.3E-01 n
2.0E-02 X V 1 2.5E+02 Chlorotoluene, p-106-43-4 1.6E+03 ns 2.3E+04 ns 2.5E+02 n 2.4E-01 n
2.4E+02 C 6.9E-02 C 1 0.1 Chlorozotocin 54749-90-5 2.3E-03 c 9.6E-03 c 4.1E-05 c 1.8E-04 c 3.2E-04 c 7.1E-08 c
5.0E-03 O 1 0.1 Chlorpropham 101-21-3 3.2E+02 n 4.1E+03 n 7.1E+01 n 6.4E-02 n
1.0E-03 A 1 0.1 Chlorpyrifos 2921-88-2 6.3E+01 n 8.2E+02 n 8.4E+00 n 1.2E-01 n
1.0E-02 H 1 0.1 Chlorpyrifos Methyl 5598-13-0 6.3E+02 n 8.2E+03 n 1.2E+02 n 5.4E-01 n
5.0E-02 O 1 0.1 Chlorsulfuron 64902-72-3 3.2E+03 n 4.1E+04 n 9.9E+02 n 8.3E-01 n
Page 2 of 11
TR
=
1
E
-
0
6

TH
Q
=
1
.
0
Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) May 2022
SFO
(mg/kg-day)-1
k
e
y
IUR
(ug/m3)-1
k
e
y
RfDo
(mg/kg-day)
k
e
y
RfCi
(mg/m3)
k
e
y
v
o
l mutagen GIABS ABSd
Csat
(mg/kg)Analyte CAS No.
Resident Soil
(mg/kg)key
Industrial Soil
(mg/kg)key
Resident Air
(ug/m3)key
Industrial Air
(ug/m3)key
Tapwater
(ug/L)key
MCL
(ug/L)
Risk-based
SSL
(mg/kg)key
MCL-based
SSL
(mg/kg)
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; D = OW; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; W = TEF applied; E = RPF applied; G = user's guide Section 5; M = mutagen; V = volatile; R = RBA applied ; c = cancer; n = noncancer; * = where: n SL < 100X c SL; ** = where n SL < 10X c SL; SSL values are based on
DAF=1; m = ceiling limit exceeded; s = Csat exceeded.
Toxicity and Chemical-specific Information Contaminant Screening Levels Protection of Groundwater SSLs
1.0E-02 I 1 0.1 Chlorthal-dimethyl 1861-32-1 6.3E+02 n 8.2E+03 n 1.2E+02 n 1.5E-01 n
8.0E-04 H 1 0.1 Chlorthiophos 60238-56-4 5.1E+01 n 6.6E+02 n 2.8E+00 n 7.3E-02 n
1.5E+00 I 0.013 Chromium(III), Insoluble Salts 16065-83-1 1.2E+05 nm 1.8E+06 nm 2.2E+04 n 4.0E+07 n
5.0E-01 C 8.4E-02 G 3.0E-03 I 1.0E-04 I M 0.025 Chromium(VI)18540-29-9 3.0E-01 c 6.3E+00 c 1.2E-05 c 1.5E-04 c 3.5E-02 c 6.7E-04 c
0.013 Chromium, Total 7440-47-3 1.0E+02 1.8E+05
1.3E-02 I 1 0.1 Clofentezine 74115-24-5 8.2E+02 n 1.1E+04 n 2.3E+02 n 1.4E+01 n
9.0E-03 P 3.0E-04 P 6.0E-06 P 1 Cobalt 7440-48-4 2.3E+01 n 3.5E+02 n 3.1E-04 c*1.4E-03 c*6.0E+00 n 2.7E-01 n
6.2E-04 I V M 1 Coke Oven Emissions E649830 1.6E-03 c 2.0E-02 c
4.0E-02 H 1 Copper 7440-50-8 3.1E+03 n 4.7E+04 n 8.0E+02 n 1.3E+03 2.8E+01 n 4.6E+01
5.0E-02 I 6.0E-01 C 1 0.1 Cresol, m-108-39-4 3.2E+03 n 4.1E+04 n 6.3E+02 n 2.6E+03 n 9.3E+02 n 7.4E-01 n
5.0E-02 I 6.0E-01 C 1 0.1 Cresol, o-95-48-7 3.2E+03 n 4.1E+04 n 6.3E+02 n 2.6E+03 n 9.3E+02 n 7.5E-01 n
2.0E-02 P 6.0E-01 C 1 0.1 Cresol, p-106-44-5 1.3E+03 n 1.6E+04 n 6.3E+02 n 2.6E+03 n 3.7E+02 n 3.0E-01 n
1.0E-01 A 1 0.1 Cresol, p-chloro-m-59-50-7 6.3E+03 n 8.2E+04 n 1.4E+03 n 1.7E+00 n
1.0E-01 A 6.0E-01 C 1 0.1 Cresols 1319-77-3 6.3E+03 n 8.2E+04 n 6.3E+02 n 2.6E+03 n 1.5E+03 n 1.3E+00 n
1.9E+00 H 1.0E-03 P V 1 1.7E+04 Crotonaldehyde, trans-123-73-9 3.7E-01 c 1.7E+00 c 4.0E-02 c 8.2E-06 c
1.0E-01 I 4.0E-01 I V 1 2.7E+02 Cumene 98-82-8 1.9E+03 ns 9.9E+03 ns 4.2E+02 n 1.8E+03 n 4.5E+02 n 7.4E-01 n
2.2E-01 C 6.3E-05 C 1 0.1 Cupferron 135-20-6 2.5E+00 c 1.0E+01 c 4.5E-02 c 1.9E-01 c 3.5E-01 c 6.1E-04 c
8.4E-01 H 2.0E-03 H 1 0.1 Cyanazine 21725-46-2 6.5E-01 c 2.7E+00 c 8.8E-02 c 4.1E-05 c
Cyanides
1.0E-03 I 1 ~Calcium Cyanide 592-01-8 7.8E+01 n 1.2E+03 n 2.0E+01 n
5.0E-03 I 1 ~Copper Cyanide 544-92-3 3.9E+02 n 5.8E+03 n 1.0E+02 n
6.0E-04 I 8.0E-04 G V 1 9.5E+05 ~Cyanide (CN-)57-12-5 2.3E+01 n 1.5E+02 n 8.3E-01 n 3.5E+00 n 1.5E+00 n 2.0E+02 1.5E-02 n 2.0E+00
1.0E-03 I V 1 ~Cyanogen 460-19-5 7.8E+01 n 1.2E+03 n 2.0E+01 n
9.0E-02 I V 1 ~Cyanogen Bromide 506-68-3 7.0E+03 n 1.1E+05 nm 1.8E+03 n
5.0E-02 I V 1 ~Cyanogen Chloride 506-77-4 3.9E+03 n 5.8E+04 n 1.0E+03 n
6.0E-04 I 8.0E-04 I V 1 1.0E+07 ~Hydrogen Cyanide 74-90-8 2.3E+01 n 1.5E+02 n 8.3E-01 n 3.5E+00 n 1.5E+00 n 1.5E-02 n
2.0E-03 I 1 ~Potassium Cyanide 151-50-8 1.6E+02 n 2.3E+03 n 4.0E+01 n
5.0E-03 I 0.04 ~Potassium Silver Cyanide 506-61-6 3.9E+02 n 5.8E+03 n 8.2E+01 n
1.0E-01 I 0.04 ~Silver Cyanide 506-64-9 7.8E+03 n 1.2E+05 nm 1.8E+03 n
1.0E-03 I 1 ~Sodium Cyanide 143-33-9 7.8E+01 n 1.2E+03 n 2.0E+01 n 2.0E+02
2.0E-04 P 1 ~Thiocyanates E1790665 1.6E+01 n 2.3E+02 n 4.0E+00 n
2.0E-04 X V 1 ~Thiocyanic Acid 463-56-9 1.6E+01 n 2.3E+02 n 4.0E+00 n
5.0E-02 I 1 ~Zinc Cyanide 557-21-1 3.9E+03 n 5.8E+04 n 1.0E+03 n
6.0E+00 I V 1 1.2E+02 Cyclohexane 110-82-7 6.5E+03 ns 2.7E+04 ns 6.3E+03 n 2.6E+04 n 1.3E+04 n 1.3E+01 n
2.0E-02 X 2.0E-02 X 1 0.1 Cyclohexane, 1,2,3,4,5-pentabromo-6-chloro-87-84-3 2.7E+01 c*1.1E+02 c 2.8E+00 c 1.6E-02 c
5.0E+00 I 7.0E-01 P V 1 5.1E+03 Cyclohexanone 108-94-1 2.8E+04 ns 1.3E+05 nms 7.3E+02 n 3.1E+03 n 1.4E+03 n 3.4E-01 n
5.0E-03 P 1.0E+00 X V 1 2.8E+02 Cyclohexene 110-83-8 3.1E+02 ns 3.1E+03 ns 1.0E+03 n 4.4E+03 n 7.0E+01 n 4.6E-02 n
2.0E-01 I V 1 2.9E+05 Cyclohexylamine 108-91-8 1.6E+04 n 2.3E+05 nm 3.8E+03 n 1.0E+00 n
2.5E-02 I 1 0.1 Cyfluthrin 68359-37-5 1.6E+03 n 2.1E+04 n 1.2E+02 n 3.1E+01 n
7.2E-02 O 1 0.1 Cypermethrin 52315-07-8 4.5E+03 n 5.9E+04 n 1.4E+03 n 2.3E+02 n
5.0E-01 O 1 0.1 Cyromazine 66215-27-8 3.2E+04 n 4.1E+05 nm 9.9E+03 n 2.5E+00 n
2.4E-01 I 6.9E-05 C 3.0E-05 X 1 0.1 DDD, p,p`- (DDD)72-54-8 1.9E+00 n 9.6E+00 c**4.1E-02 c 1.8E-01 c 3.2E-02 c**7.5E-03 c**
3.4E-01 I 9.7E-05 C 3.0E-04 X V 1 DDE, p,p'-72-55-9 2.0E+00 c*9.3E+00 c*2.9E-02 c 1.3E-01 c 4.6E-02 c 1.1E-02 c
3.4E-01 I 9.7E-05 I 5.0E-04 I 1 0.03 DDT 50-29-3 1.9E+00 c*8.5E+00 c*2.9E-02 c 1.3E-01 c 2.3E-01 c*7.7E-02 c*
3.0E-02 I 1 0.1 Dalapon 75-99-0 1.9E+03 n 2.5E+04 n 6.0E+02 n 2.0E+02 1.2E-01 n 4.1E-02
1.8E-02 C 5.1E-06 C 1.5E-01 I 1 0.1 Daminozide 1596-84-5 3.0E+01 c 1.3E+02 c 5.5E-01 c 2.4E+00 c 4.3E+00 c 9.5E-04 c
7.0E-04 I 7.0E-03 I 1 0.1 Decabromodiphenyl ether, 2,2',3,3',4,4',5,5',6,6'- (BDE-209)1163-19-5 4.4E+02 n 3.3E+03 c** 1.1E+02 c**6.2E+01 c**
4.0E-05 I 1 0.1 Demeton 8065-48-3 2.5E+00 n 3.3E+01 n 4.2E-01 n
1.2E-03 I 6.0E-01 I 1 0.1 Di(2-ethylhexyl)adipate 103-23-1 4.5E+02 c*1.9E+03 c 6.5E+01 c 4.0E+02 4.7E+00 c 2.9E+01
6.1E-02 H 1 0.1 Diallate 2303-16-4 8.9E+00 c 3.8E+01 c 5.4E-01 c 8.0E-04 c
7.0E-04 A 1 0.1 Diazinon 333-41-5 4.4E+01 n 5.7E+02 n 1.0E+01 n 6.5E-02 n
1.0E-02 X V 1 Dibenzothiophene 132-65-0 7.8E+02 n 1.2E+04 n 6.5E+01 n 1.2E+00 n
8.0E-01 P 6.0E-03 P 2.0E-04 P 2.0E-04 I V M 1 9.8E+02 Dibromo-3-chloropropane, 1,2-96-12-8 5.3E-03 c 6.4E-02 c 1.7E-04 c 2.0E-03 c 3.3E-04 c 2.0E-01 1.4E-07 c 8.6E-05
1 0.1 Dibromoacetic acid 631-64-1 6.0E+01(G) 1.2E-02
4.0E-04 X V 1 1.6E+02 Dibromobenzene, 1,3-108-36-1 3.1E+01 n 4.7E+02 ns 5.3E+00 n 5.1E-03 n
1.0E-02 I V 1 Dibromobenzene, 1,4-106-37-6 7.8E+02 n 1.2E+04 n 1.3E+02 n 1.2E-01 n
8.4E-02 I 2.0E-02 I V 1 8.0E+02 Dibromochloromethane 124-48-1 8.3E+00 c 3.9E+01 c 8.7E-01 c 8.0E+01(G)2.3E-04 c 2.1E-02
2.0E+00 I 6.0E-04 I 9.0E-03 I 9.0E-03 I V 1 1.3E+03 Dibromoethane, 1,2-106-93-4 3.6E-02 c 1.6E-01 c 4.7E-03 c 2.0E-02 c 7.5E-03 c 5.0E-02 2.1E-06 c 1.4E-05
4.0E-03 X V 1 2.8E+03 Dibromomethane (Methylene Bromide)74-95-3 2.4E+01 n 9.9E+01 n 4.2E+00 n 1.8E+01 n 8.3E+00 n 2.1E-03 n
3.0E-04 P 1 0.1 Dibutyltin Compounds E1790661 1.9E+01 n 2.5E+02 n 6.0E+00 n
3.0E-02 I 1 0.1 Dicamba 1918-00-9 1.9E+03 n 2.5E+04 n 5.7E+02 n 1.5E-01 n
1 0.1 Dichloramine 3400-09-7 4.0E+03(G)
4.2E-03 P V 1 5.5E+02 Dichloro-2-butene, 1,4-764-41-0 2.1E-03 c 9.4E-03 c 6.7E-04 c 2.9E-03 c 1.3E-03 c 6.6E-07 c
4.2E-03 P V 1 5.2E+02 Dichloro-2-butene, cis-1,4-1476-11-5 7.4E-03 c 3.2E-02 c 6.7E-04 c 2.9E-03 c 1.3E-03 c 6.2E-07 c
4.2E-03 P V 1 7.6E+02 Dichloro-2-butene, trans-1,4-110-57-6 7.4E-03 c 3.2E-02 c 6.7E-04 c 2.9E-03 c 1.3E-03 c 6.2E-07 c
5.0E-02 I 4.0E-03 I 1 0.1 Dichloroacetic Acid 79-43-6 1.1E+01 c*4.6E+01 c* 1.5E+00 c*6.0E+01(G)3.1E-04 c*1.2E-02
9.0E-02 I 2.0E-01 H V 1 3.8E+02 Dichlorobenzene, 1,2-95-50-1 1.8E+03 ns 9.3E+03 ns 2.1E+02 n 8.8E+02 n 3.0E+02 n 6.0E+02 3.0E-01 n 5.8E-01
5.4E-03 C 1.1E-05 C 7.0E-02 A 8.0E-01 I V 1 Dichlorobenzene, 1,4-106-46-7 2.6E+00 c 1.1E+01 c 2.6E-01 c 1.1E+00 c 4.8E-01 c 7.5E+01 4.6E-04 c 7.2E-02
4.5E-01 I 3.4E-04 C 1 0.1 Dichlorobenzidine, 3,3'-91-94-1 1.2E+00 c 5.1E+00 c 8.3E-03 c 3.6E-02 c 1.3E-01 c 8.2E-04 c
9.0E-03 X 1 0.1 Dichlorobenzophenone, 4,4'-90-98-2 5.7E+02 n 7.4E+03 n 7.8E+01 n 4.7E-01 n
2.0E-01 I 1.0E-01 X V 1 8.5E+02 Dichlorodifluoromethane 75-71-8 8.7E+01 n 3.7E+02 n 1.0E+02 n 4.4E+02 n 2.0E+02 n 3.0E-01 n
5.7E-03 C 1.6E-06 C 2.0E-01 P V 1 1.7E+03 Dichloroethane, 1,1-75-34-3 3.6E+00 c 1.6E+01 c 1.8E+00 c 7.7E+00 c 2.8E+00 c 7.8E-04 c
9.1E-02 I 2.6E-05 I 6.0E-03 X 7.0E-03 P V 1 3.0E+03 Dichloroethane, 1,2-107-06-2 4.6E-01 c*2.0E+00 c*1.1E-01 c*4.7E-01 c*1.7E-01 c*5.0E+00 4.8E-05 c*1.4E-03
5.0E-02 I 2.0E-01 I V 1 1.2E+03 Dichloroethylene, 1,1-75-35-4 2.3E+02 n 1.0E+03 n 2.1E+02 n 8.8E+02 n 2.8E+02 n 7.0E+00 1.0E-01 n 2.5E-03
2.0E-03 I V 1 2.4E+03 Dichloroethylene, cis-1,2-156-59-2 1.6E+02 n 2.3E+03 n 3.6E+01 n 7.0E+01 1.1E-02 n 2.1E-02
2.0E-02 I 4.0E-02 X V 1 1.9E+03 Dichloroethylene, trans-1,2-156-60-5 7.0E+01 n 3.0E+02 n 4.2E+01 n 1.8E+02 n 6.8E+01 n 1.0E+02 2.1E-02 n 3.1E-02
3.0E-03 I 1 0.1 Dichlorophenol, 2,4-120-83-2 1.9E+02 n 2.5E+03 n 4.6E+01 n 2.3E-02 n
1.0E-02 I 1 0.05 Dichlorophenoxy Acetic Acid, 2,4-94-75-7 7.0E+02 n 9.6E+03 n 1.7E+02 n 7.0E+01 4.5E-02 n 1.8E-02
Page 3 of 11
TR
=
1
E
-
0
6

TH
Q
=
1
.
0
Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) May 2022
SFO
(mg/kg-day)-1
k
e
y
IUR
(ug/m3)-1
k
e
y
RfDo
(mg/kg-day)
k
e
y
RfCi
(mg/m3)
k
e
y
v
o
l mutagen GIABS ABSd
Csat
(mg/kg)Analyte CAS No.
Resident Soil
(mg/kg)key
Industrial Soil
(mg/kg)key
Resident Air
(ug/m3)key
Industrial Air
(ug/m3)key
Tapwater
(ug/L)key
MCL
(ug/L)
Risk-based
SSL
(mg/kg)key
MCL-based
SSL
(mg/kg)
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; D = OW; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; W = TEF applied; E = RPF applied; G = user's guide Section 5; M = mutagen; V = volatile; R = RBA applied ; c = cancer; n = noncancer; * = where: n SL < 100X c SL; ** = where n SL < 10X c SL; SSL values are based on
DAF=1; m = ceiling limit exceeded; s = Csat exceeded.
Toxicity and Chemical-specific Information Contaminant Screening Levels Protection of Groundwater SSLs
3.7E-02 P 3.7E-06 P 4.0E-02 P 4.0E-03 I V 1 1.4E+03 Dichloropropane, 1,2-78-87-5 2.5E+00 c**1.1E+01 c**7.6E-01 c**3.3E+00 c**8.5E-01 c**5.0E+00 2.8E-04 c**1.7E-03
2.0E-02 P V 1 1.5E+03 Dichloropropane, 1,3-142-28-9 1.6E+03 ns 2.3E+04 ns 3.7E+02 n 1.3E-01 n
3.0E-03 I 1 0.1 Dichloropropanol, 2,3-616-23-9 1.9E+02 n 2.5E+03 n 5.9E+01 n 1.3E-02 n
1.0E-01 I 4.0E-06 I 3.0E-02 I 2.0E-02 I V 1 1.6E+03 Dichloropropene, 1,3-542-75-6 1.8E+00 c*8.2E+00 c*7.0E-01 c*3.1E+00 c*4.7E-01 c*1.7E-04 c*
2.9E-01 I 8.3E-05 C 5.0E-04 I 5.0E-04 I 1 0.1 Dichlorvos 62-73-7 1.9E+00 c*7.9E+00 c*3.4E-02 c*1.5E-01 c*2.6E-01 c*8.1E-05 c*
3.0E-05 O 1 0.1 Dicrotophos 141-66-2 1.9E+00 n 2.5E+01 n 6.0E-01 n 1.4E-04 n
8.0E-02 P 3.0E-04 X V 1 2.6E+02 Dicyclopentadiene 77-73-6 1.3E+00 n 5.4E+00 n 3.1E-01 n 1.3E+00 n 6.3E-01 n 2.2E-03 n
1.6E+01 I 4.6E-03 I 5.0E-05 I 1 0.1 Dieldrin 60-57-1 3.4E-02 c*1.4E-01 c 6.1E-04 c 2.7E-03 c 1.8E-03 c 7.1E-05 c
3.0E-04 C 5.0E-03 I 1 0.1 Diesel Engine Exhaust E17136615 9.4E-03 c 4.1E-02 c
2.0E-03 P 2.0E-04 P 1 0.1 Diethanolamine 111-42-2 1.3E+02 n 1.6E+03 n 2.1E-01 n 8.8E-01 n 4.0E+01 n 8.1E-03 n
3.0E-02 P 1.0E-04 P 1 0.1 Diethylene Glycol Monobutyl Ether 112-34-5 1.9E+03 n 2.4E+04 n 1.0E-01 n 4.4E-01 n 6.0E+02 n 1.3E-01 n
6.0E-02 P 3.0E-04 P 1 0.1 Diethylene Glycol Monoethyl Ether 111-90-0 3.8E+03 n 4.8E+04 n 3.1E-01 n 1.3E+00 n 1.2E+03 n 2.4E-01 n
1.0E-03 P V 1 1.1E+05 Diethylformamide 617-84-5 7.8E+01 n 1.2E+03 n 2.0E+01 n 4.1E-03 n
3.5E+02 C 1.0E-01 C 1 0.1 Diethylstilbestrol 56-53-1 1.6E-03 c 6.6E-03 c 2.8E-05 c 1.2E-04 c 5.1E-05 c 2.8E-05 c
8.3E-02 O 1 0.1 Difenzoquat 43222-48-6 5.2E+03 n 6.8E+04 n 1.7E+03 n 2.6E+02 n
2.0E-02 I 1 0.1 Diflubenzuron 35367-38-5 1.3E+03 n 1.6E+04 n 2.9E+02 n 3.3E-01 n
4.0E+01 I V 1 1.4E+03 Difluoroethane, 1,1-75-37-6 4.8E+04 ns 2.0E+05 nms 4.2E+04 n 1.8E+05 n 8.3E+04 n 2.8E+01 n
3.0E+01 X V 1 6.9E+02 Difluoropropane, 2,2-420-45-1 2.4E+04 ns 1.0E+05 ns 3.1E+04 n 1.3E+05 n 6.3E+04 n 1.4E+02 n
4.4E-02 C 1.3E-05 C V 1 Dihydrosafrole 94-58-6 9.9E+00 c 4.5E+01 c 2.2E-01 c 9.4E-01 c 3.0E-01 c 1.9E-04 c
7.0E-01 P V 1 2.3E+03 Diisopropyl Ether 108-20-3 2.2E+03 n 9.4E+03 ns 7.3E+02 n 3.1E+03 n 1.5E+03 n 3.7E-01 n
8.0E-02 I V 1 5.3E+02 Diisopropyl Methylphosphonate 1445-75-6 6.3E+03 ns 9.3E+04 ns 1.6E+03 n 4.5E-01 n
2.2E-02 O 1 0.1 Dimethipin 55290-64-7 1.4E+03 n 1.8E+04 n 4.4E+02 n 9.6E-02 n
2.2E-03 O 1 0.1 Dimethoate 60-51-5 1.4E+02 n 1.8E+03 n 4.4E+01 n 9.9E-03 n
1.6E+00 P 1 0.1 Dimethoxybenzidine, 3,3'-119-90-4 3.4E-01 c 1.4E+00 c 4.7E-02 c 5.8E-05 c
1.7E-03 P 6.0E-02 P 1 0.1 Dimethyl methylphosphonate 756-79-6 3.2E+02 c*1.4E+03 c* 4.6E+01 c*9.6E-03 c*
4.6E+00 C 1.3E-03 C 1 0.1 Dimethylamino azobenzene [p-]60-11-7 1.2E-01 c 5.0E-01 c 2.2E-03 c 9.4E-03 c 5.0E-03 c 2.1E-05 c
5.8E-01 H 1 0.1 Dimethylaniline HCl, 2,4-21436-96-4 9.4E-01 c 4.0E+00 c 1.3E-01 c 1.2E-04 c
2.0E-01 P 2.0E-03 X 1 0.1 Dimethylaniline, 2,4-95-68-1 2.7E+00 c*1.1E+01 c 3.7E-01 c 2.1E-04 c
2.7E-02 P 2.0E-03 I V 1 8.3E+02 Dimethylaniline, N,N-121-69-7 2.6E+01 c**1.2E+02 c* 2.5E+00 c*9.0E-04 c*
1.1E+01 P 1 0.1 Dimethylbenzidine, 3,3'-119-93-7 4.9E-02 c 2.1E-01 c 6.5E-03 c 4.3E-05 c
1.0E-01 P 3.0E-02 I V 1 1.1E+05 Dimethylformamide 68-12-2 2.6E+03 n 1.5E+04 n 3.1E+01 n 1.3E+02 n 6.1E+01 n 1.2E-02 n
1.0E-04 X 2.0E-06 X V 1 1.7E+05 Dimethylhydrazine, 1,1-57-14-7 5.7E-02 n 2.4E-01 n 2.1E-03 n 8.8E-03 n 4.2E-03 n 9.3E-07 n
5.5E+02 C 1.6E-01 C V 1 1.9E+05 Dimethylhydrazine, 1,2-540-73-8 8.8E-04 c 4.1E-03 c 1.8E-05 c 7.7E-05 c 2.8E-05 c 6.5E-09 c
2.0E-02 I 1 0.1 Dimethylphenol, 2,4-105-67-9 1.3E+03 n 1.6E+04 n 3.6E+02 n 4.2E-01 n
6.0E-04 I 1 0.1 Dimethylphenol, 2,6-576-26-1 3.8E+01 n 4.9E+02 n 1.1E+01 n 1.3E-02 n
1.0E-03 I 1 0.1 Dimethylphenol, 3,4-95-65-8 6.3E+01 n 8.2E+02 n 1.8E+01 n 2.1E-02 n
4.5E-02 C 1.3E-05 C V 1 4.7E+02 Dimethylvinylchloride 513-37-1 1.1E+00 c 4.8E+00 c 2.2E-01 c 9.4E-01 c 3.3E-01 c 1.1E-04 c
8.0E-05 X 1 0.1 Dinitro-o-cresol, 4,6-534-52-1 5.1E+00 n 6.6E+01 n 1.5E+00 n 2.6E-03 n
2.0E-03 I 1 0.1 Dinitro-o-cyclohexyl Phenol, 4,6-131-89-5 1.3E+02 n 1.6E+03 n 2.3E+01 n 7.7E-01 n
4.0E-04 X 2.0E-03 X 1 0.1 Dinitroaniline, 3,5-618-87-1 2.5E+01 n 3.3E+02 n 2.1E+00 n 8.8E+00 n 7.7E+00 n 4.1E-03 n
1.0E-04 P 1 0.1 Dinitrobenzene, 1,2-528-29-0 6.3E+00 n 8.2E+01 n 1.9E+00 n 1.8E-03 n
1.0E-04 I 1 0.1 Dinitrobenzene, 1,3-99-65-0 6.3E+00 n 8.2E+01 n 2.0E+00 n 1.8E-03 n
1.0E-04 P 1 0.1 Dinitrobenzene, 1,4-100-25-4 6.3E+00 n 8.2E+01 n 2.0E+00 n 1.8E-03 n
2.0E-03 I 1 0.1 Dinitrophenol, 2,4-51-28-5 1.3E+02 n 1.6E+03 n 3.9E+01 n 4.4E-02 n
6.8E-01 I 1 0.1 Dinitrotoluene Mixture, 2,4/2,6-E1615210 8.0E-01 c 3.4E+00 c 1.1E-01 c 1.5E-04 c
3.1E-01 C 8.9E-05 C 2.0E-03 I 1 0.102 Dinitrotoluene, 2,4-121-14-2 1.7E+00 c*7.4E+00 c 3.2E-02 c 1.4E-01 c 2.4E-01 c 3.2E-04 c
1.5E+00 P 3.0E-04 X 1 0.099 Dinitrotoluene, 2,6-606-20-2 3.6E-01 c*1.5E+00 c 4.9E-02 c 6.7E-05 c
1.0E-04 X 1 0.006 Dinitrotoluene, 2-Amino-4,6-35572-78-2 7.7E+00 n 1.1E+02 n 1.9E+00 n 1.5E-03 n
1.0E-04 X 1 0.009 Dinitrotoluene, 4-Amino-2,6-19406-51-0 7.7E+00 n 1.1E+02 n 1.9E+00 n 1.5E-03 n
4.5E-01 X 9.0E-04 X 1 0.1 Dinitrotoluene, Technical grade 25321-14-6 1.2E+00 c*5.1E+00 c 1.0E-01 c 1.4E-04 c
1.0E-03 I 1 0.1 Dinoseb 88-85-7 6.3E+01 n 8.2E+02 n 1.5E+01 n 7.0E+00 1.3E-01 n 6.2E-02
1.0E-01 I 5.0E-06 I 3.0E-02 I 3.0E-02 I V 1 1.2E+05 Dioxane, 1,4-123-91-1 5.3E+00 c 2.4E+01 c 5.6E-01 c*2.5E+00 c*4.6E-01 c 9.4E-05 c
Dioxins
6.2E+03 I 1.3E+00 I 1 0.03 ~Hexachlorodibenzo-p-dioxin, Mixture 34465-46-8 1.0E-04 c 4.7E-04 c 2.2E-06 c 9.4E-06 c 1.3E-05 c 1.7E-05 c
1.3E+05 C 3.8E+01 C 7.0E-10 I 4.0E-08 C V 1 0.03 ~TCDD, 2,3,7,8-1746-01-6 4.8E-06 c*2.2E-05 c*7.4E-08 c 3.2E-07 c 1.2E-07 c 3.0E-05 5.9E-08 c 1.5E-05
3.0E-02 I 1 0.1 Diphenamid 957-51-7 1.9E+03 n 2.5E+04 n 5.3E+02 n 5.2E+00 n
4.0E-04 X V 1 Diphenyl Ether 101-84-8 3.4E+01 n 1.4E+02 n 4.2E-01 n 1.8E+00 n 8.3E-01 n 3.4E-03 n
8.0E-04 X 1 0.1 Diphenyl Sulfone 127-63-9 5.1E+01 n 6.6E+02 n 1.5E+01 n 3.6E-02 n
1.0E-01 O 1 0.1 Diphenylamine 122-39-4 6.3E+03 n 8.2E+04 n 1.3E+03 n 2.3E+00 n
8.0E-01 I 2.2E-04 I 1 0.1 Diphenylhydrazine, 1,2-122-66-7 6.8E-01 c 2.9E+00 c 1.3E-02 c 5.6E-02 c 7.8E-02 c 2.5E-04 c
2.2E-03 I 1 0.1 Diquat 2764-72-9 1.4E+02 n 1.8E+03 n 4.0E+01 n 2.0E+01 3.3E-01 n 1.7E-01
7.4E+00 C 2.1E-03 C 1 0.1 Direct Black 38 1937-37-7 7.3E-02 c 3.1E-01 c 1.3E-03 c 5.8E-03 c 1.1E-02 c 5.1E+00 c
7.4E+00 C 2.1E-03 C 1 0.1 Direct Blue 6 2602-46-2 7.3E-02 c 3.1E-01 c 1.3E-03 c 5.8E-03 c 1.1E-02 c 1.7E+01 c
6.7E+00 C 1.9E-03 C 1 0.1 Direct Brown 95 16071-86-6 8.1E-02 c 3.4E-01 c 1.5E-03 c 6.5E-03 c 1.2E-02 c 1.6E-01 c
4.0E-05 I 1 0.1 Disulfoton 298-04-4 2.5E+00 n 3.3E+01 n 5.0E-01 n 9.4E-04 n
1.0E-02 I V 1 Dithiane, 1,4-505-29-3 7.8E+02 n 1.2E+04 n 2.0E+02 n 9.7E-02 n
2.0E-03 I 1 0.1 Diuron 330-54-1 1.3E+02 n 1.6E+03 n 3.6E+01 n 1.5E-02 n
2.0E-02 O 1 0.1 Dodine 2439-10-3 1.3E+03 n 1.6E+04 n 4.0E+02 n 2.1E+00 n
5.0E-02 O V 1 EPTC 759-94-4 3.9E+03 n 5.8E+04 n 7.5E+02 n 4.0E-01 n
6.0E-03 I V 1 Endosulfan 115-29-7 4.7E+02 n 7.0E+03 n 1.0E+02 n 1.4E+00 n
6.0E-03 P 1 0.1 Endosulfan Sulfate 1031-07-8 3.8E+02 n 4.9E+03 n 1.1E+02 n 2.1E+00 n
2.0E-02 I 1 0.1 Endothall 145-73-3 1.3E+03 n 1.6E+04 n 3.8E+02 n 1.0E+02 9.1E-02 n 2.4E-02
3.0E-04 I 1 0.1 Endrin 72-20-8 1.9E+01 n 2.5E+02 n 2.3E+00 n 2.0E+00 9.2E-02 n 8.1E-02
9.9E-03 I 1.2E-06 I 6.0E-03 P 1.0E-03 I V 1 1.1E+04 Epichlorohydrin 106-89-8 1.9E+01 n 8.2E+01 n 1.0E+00 n 4.4E+00 n 2.0E+00 n 4.5E-04 n
2.0E-02 I V 1 1.5E+04 Epoxybutane, 1,2-106-88-7 1.6E+02 n 6.7E+02 n 2.1E+01 n 8.8E+01 n 4.2E+01 n 9.2E-03 n
4.0E-02 P 1 0.1 Ethanol, 2-(2-methoxyethoxy)-111-77-3 2.5E+03 n 3.3E+04 n 8.0E+02 n 1.6E-01 n
5.0E-03 I 1 0.1 Ethephon 16672-87-0 3.2E+02 n 4.1E+03 n 1.0E+02 n 2.1E-02 n
5.0E-04 I 1 0.1 Ethion 563-12-2 3.2E+01 n 4.1E+02 n 4.3E+00 n 8.5E-03 n
Page 4 of 11
TR
=
1
E
-
0
6

TH
Q
=
1
.
0
Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) May 2022
SFO
(mg/kg-day)-1
k
e
y
IUR
(ug/m3)-1
k
e
y
RfDo
(mg/kg-day)
k
e
y
RfCi
(mg/m3)
k
e
y
v
o
l mutagen GIABS ABSd
Csat
(mg/kg)Analyte CAS No.
Resident Soil
(mg/kg)key
Industrial Soil
(mg/kg)key
Resident Air
(ug/m3)key
Industrial Air
(ug/m3)key
Tapwater
(ug/L)key
MCL
(ug/L)
Risk-based
SSL
(mg/kg)key
MCL-based
SSL
(mg/kg)
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; D = OW; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; W = TEF applied; E = RPF applied; G = user's guide Section 5; M = mutagen; V = volatile; R = RBA applied ; c = cancer; n = noncancer; * = where: n SL < 100X c SL; ** = where n SL < 10X c SL; SSL values are based on
DAF=1; m = ceiling limit exceeded; s = Csat exceeded.
Toxicity and Chemical-specific Information Contaminant Screening Levels Protection of Groundwater SSLs
1.0E-01 P 6.0E-02 P V 1 2.4E+04 Ethoxyethanol Acetate, 2-111-15-9 2.6E+03 n 1.4E+04 n 6.3E+01 n 2.6E+02 n 1.2E+02 n 2.5E-02 n
9.0E-02 P 4.0E-02 P V 1 1.1E+05 Ethoxyethanol, 2-110-80-5 2.6E+03 n 1.5E+04 n 4.2E+01 n 1.8E+02 n 8.0E+01 n 1.6E-02 n
7.0E-01 P 7.0E-02 P V 1 1.1E+04 Ethyl Acetate 141-78-6 6.2E+02 n 2.6E+03 n 7.3E+01 n 3.1E+02 n 1.4E+02 n 3.1E-02 n
5.0E-03 P 8.0E-03 P V 1 2.5E+03 Ethyl Acrylate 140-88-5 4.7E+01 n 2.1E+02 n 8.3E+00 n 3.5E+01 n 1.4E+01 n 3.2E-03 n
4.0E+00 P V 1 2.1E+03 Ethyl Chloride (Chloroethane)75-00-3 5.4E+03 ns 2.3E+04 ns 4.2E+03 n 1.8E+04 n 8.3E+03 n 2.4E+00 n
2.0E-01 I V 1 1.0E+04 Ethyl Ether 60-29-7 1.6E+04 ns 2.3E+05 nms 3.9E+03 n 8.8E-01 n
3.0E-01 P V 1 1.1E+03 Ethyl Methacrylate 97-63-2 1.8E+03 ns 7.6E+03 ns 3.1E+02 n 1.3E+03 n 6.3E+02 n 1.5E-01 n
8.0E-08 I 1.0E+00 I 4.0E+01 I V 1 2.9E+03 Ethyl Tertiary Butyl Ether (ETBE)637-92-3 1.3E+02 c 5.6E+02 c 3.5E+01 c 1.5E+02 c 7.0E+01 c 1.7E-02 c
1.0E-05 I 1 0.1 Ethyl-p-nitrophenyl Phosphonate 2104-64-5 6.3E-01 n 8.2E+00 n 8.9E-02 n 2.8E-03 n
1.1E-02 C 2.5E-06 C 5.0E-02 P 1.0E+00 I V 1 4.8E+02 Ethylbenzene 100-41-4 5.8E+00 c 2.5E+01 c 1.1E+00 c 4.9E+00 c 1.5E+00 c 7.0E+02 1.7E-03 c 7.8E-01
7.0E-02 P 1 0.1 Ethylene Cyanohydrin 109-78-4 4.4E+03 n 5.7E+04 n 1.4E+03 n 2.8E-01 n
9.0E-02 P V 1 1.9E+05 Ethylene Diamine 107-15-3 7.0E+03 n 1.1E+05 nm 1.8E+03 n 4.1E-01 n
8.0E-01 A 4.0E-01 C 1 0.1 Ethylene Glycol 107-21-1 5.1E+04 n 6.6E+05 nm 4.2E+02 n 1.8E+03 n 1.6E+04 n 3.2E+00 n
1.0E-01 I 1.6E+00 I 1 0.1 Ethylene Glycol Monobutyl Ether 111-76-2 6.3E+03 n 8.2E+04 n 1.7E+03 n 7.0E+03 n 2.0E+03 n 4.1E-01 n
3.1E-01 C 3.0E-03 I 3.0E-02 C V M 1 1.2E+05 Ethylene Oxide 75-21-8 2.0E-03 c 2.5E-02 c 3.4E-04 c 4.1E-03 c 6.7E-04 c 1.4E-07 c
4.5E-02 C 1.3E-05 C 8.0E-05 I 1 0.1 Ethylene Thiourea 96-45-7 5.1E+00 n 5.1E+01 c**2.2E-01 c 9.4E-01 c 1.6E+00 n 3.6E-04 n
6.5E+01 C 1.9E-02 C V 1 1.5E+05 Ethyleneimine 151-56-4 2.7E-03 c 1.2E-02 c 1.5E-04 c 6.5E-04 c 2.4E-04 c 5.2E-08 c
3.0E+00 I 1 0.1 Ethylphthalyl Ethyl Glycolate 84-72-0 1.9E+05 nm 2.5E+06 nm 5.8E+04 n 1.3E+02 n
2.5E-04 I 1 0.1 Fenamiphos 22224-92-6 1.6E+01 n 2.1E+02 n 4.4E+00 n 4.3E-03 n
2.5E-02 I 1 0.1 Fenpropathrin 39515-41-8 1.6E+03 n 2.1E+04 n 6.4E+01 n 2.9E+00 n
2.5E-02 I 1 0.1 Fenvalerate 51630-58-1 1.6E+03 n 2.1E+04 n 5.0E+02 n 3.2E+02 n
1.3E-02 I 1 0.1 Fluometuron 2164-17-2 8.2E+02 n 1.1E+04 n 2.4E+02 n 1.9E-01 n
4.0E-02 C 1.3E-02 C 1 Fluoride 16984-48-8 3.1E+03 n 4.7E+04 n 1.4E+01 n 5.7E+01 n 8.0E+02 n 4.0E+03 1.2E+02 n 6.0E+02
6.0E-02 I 1.3E-02 C 1 Fluorine (Soluble Fluoride)7782-41-4 4.7E+03 n 7.0E+04 n 1.4E+01 n 5.7E+01 n 1.2E+03 n 4.0E+03 1.8E+02 n 6.0E+02
8.0E-02 I 1 0.1 Fluridone 59756-60-4 5.1E+03 n 6.6E+04 n 1.4E+03 n 1.6E+02 n
4.0E-02 O 1 0.1 Flurprimidol 56425-91-3 2.5E+03 n 3.3E+04 n 6.9E+02 n 3.1E+00 n
2.0E-03 O 1 0.1 Flusilazole 85509-19-9 1.3E+02 n 1.6E+03 n 3.1E+01 n 5.1E+00 n
5.0E-01 O 1 0.1 Flutolanil 66332-96-5 3.2E+04 n 4.1E+05 nm 7.9E+03 n 4.2E+01 n
1.0E-02 I 1 0.1 Fluvalinate 69409-94-5 6.3E+02 n 8.2E+03 n 2.0E+02 n 2.9E+02 n
9.0E-02 O 1 0.1 Folpet 133-07-3 5.7E+03 n 7.4E+04 n 1.6E+03 n 3.9E-01 n
1.0E-02 O 1 0.1 Fomesafen 72178-02-0 6.3E+02 n 8.2E+03 n 1.9E+02 n 6.3E-01 n
2.0E-03 I 1 0.1 Fonofos 944-22-9 1.3E+02 n 1.6E+03 n 2.4E+01 n 4.7E-02 n
2.1E-02 C 1.3E-05 I 2.0E-01 I 9.8E-03 A V 1 4.2E+04 Formaldehyde 50-00-0 1.1E+01 c*5.0E+01 c*2.2E-01 c*9.4E-01 c*3.9E-01 c*7.8E-05 c*
9.0E-01 P 3.0E-04 X V 1 1.1E+05 Formic Acid 64-18-6 2.9E+01 n 1.2E+02 n 3.1E-01 n 1.3E+00 n 6.3E-01 n 1.3E-04 n
2.5E+00 O 1 0.1 Fosetyl-AL 39148-24-8 1.6E+05 nm 2.1E+06 nm 5.0E+04 n 6.6E+02 n
Furans
1.0E-03 X V 1 ~Dibenzofuran 132-64-9 7.8E+01 n 1.2E+03 n 7.9E+00 n 1.5E-01 n
1.0E-03 I V 1 6.2E+03 ~Furan 110-00-9 7.8E+01 n 1.2E+03 n 1.9E+01 n 7.3E-03 n
9.0E-01 I 2.0E+00 I V 1 1.7E+05 ~Tetrahydrofuran 109-99-9 1.8E+04 n 9.5E+04 n 2.1E+03 n 8.8E+03 n 3.4E+03 n 7.5E-01 n
3.8E+00 H 1 0.1 Furazolidone 67-45-8 1.4E-01 c 6.0E-01 c 2.0E-02 c 3.9E-05 c
3.0E-03 I 5.0E-02 H V 1 1.0E+04 Furfural 98-01-1 2.1E+02 n 2.6E+03 n 5.2E+01 n 2.2E+02 n 3.8E+01 n 8.1E-03 n
1.5E+00 C 4.3E-04 C 1 0.1 Furium 531-82-8 3.6E-01 c 1.5E+00 c 6.5E-03 c 2.9E-02 c 5.1E-02 c 6.8E-05 c
3.0E-02 I 8.6E-06 C 1 0.1 Furmecyclox 60568-05-0 1.8E+01 c 7.7E+01 c 3.3E-01 c 1.4E+00 c 1.1E+00 c 1.2E-03 c
6.0E-03 O 1 0.1 Glufosinate, Ammonium 77182-82-2 3.8E+02 n 4.9E+03 n 1.2E+02 n 2.6E-02 n
1.0E-01 A 8.0E-05 C 1 0.1 Glutaraldehyde 111-30-8 6.0E+03 n 7.0E+04 n 8.3E-02 n 3.5E-01 n 2.0E+03 n 4.0E-01 n
4.0E-04 I 1.0E-03 X V 1 1.1E+05 Glycidaldehyde 765-34-4 2.3E+01 n 2.1E+02 n 1.0E+00 n 4.4E+00 n 1.7E+00 n 3.3E-04 n
1.0E-01 I 1 0.1 Glyphosate 1071-83-6 6.3E+03 n 8.2E+04 n 2.0E+03 n 7.0E+02 8.8E+00 n 3.1E+00
1.0E-02 X V 1 Guanidine 113-00-8 7.8E+02 n 1.2E+04 n 2.0E+02 n 4.5E-02 n
2.0E-02 P 1 0.1 Guanidine Chloride 50-01-1 1.3E+03 n 1.6E+04 n 4.0E+02 n
3.0E-02 X 1 0.1 Guanidine Nitrate 506-93-4 1.9E+03 n 2.5E+04 n 6.0E+02 n 1.5E-01 n
5.0E-05 I 1 0.1 Haloxyfop, Methyl 69806-40-2 3.2E+00 n 4.1E+01 n 7.6E-01 n 8.4E-03 n
4.5E+00 I 1.3E-03 I 1.0E-04 A V 1 Heptachlor 76-44-8 1.3E-01 c*6.3E-01 c 2.2E-03 c 9.4E-03 c 1.4E-03 c 4.0E-01 1.2E-04 c 3.3E-02
9.1E+00 I 2.6E-03 I 1.3E-05 I V 1 Heptachlor Epoxide 1024-57-3 7.0E-02 c*3.3E-01 c*1.1E-03 c 4.7E-03 c 1.4E-03 c*2.0E-01 2.8E-05 c*4.1E-03
3.0E-03 X V 1 2.1E+02 Heptanal, n-111-71-7 2.4E+01 n 1.0E+02 n 3.1E+00 n 1.3E+01 n 6.3E+00 n 1.4E-03 n
3.0E-04 X 4.0E-01 P V 1 5.8E+01 Heptane, N-142-82-5 2.2E+01 n 2.9E+02 ns 4.2E+02 n 1.8E+03 n 6.0E+00 n 4.8E-02 n
2.0E-03 I V 1 Hexabromobenzene 87-82-1 1.6E+02 n 2.3E+03 n 4.0E+01 n 2.3E-01 n
2.0E-04 I 1 0.1 Hexabromodiphenyl ether, 2,2',4,4',5,5'- (BDE-153)68631-49-2 1.3E+01 n 1.6E+02 n 4.0E+00 n
1.6E+00 I 4.6E-04 I 1.0E-05 P V 1 Hexachlorobenzene 118-74-1 2.1E-01 c**9.6E-01 c*6.1E-03 c 2.7E-02 c 9.8E-03 c*1.0E+00 1.2E-04 c*1.3E-02
7.8E-02 I 2.2E-05 I 1.0E-03 P V 1 1.7E+01 Hexachlorobutadiene 87-68-3 1.2E+00 c*5.3E+00 c 1.3E-01 c 5.6E-01 c 1.4E-01 c*2.7E-04 c*
6.3E+00 I 1.8E-03 I 8.0E-03 A 1 0.1 Hexachlorocyclohexane, Alpha-319-84-6 8.6E-02 c 3.6E-01 c 1.6E-03 c 6.8E-03 c 7.2E-03 c 4.2E-05 c
1.8E+00 I 5.3E-04 I 1 0.1 Hexachlorocyclohexane, Beta-319-85-7 3.0E-01 c 1.3E+00 c 5.3E-03 c 2.3E-02 c 2.5E-02 c 1.5E-04 c
1.1E+00 C 3.1E-04 C 1.0E-05 A 1 0.04 Hexachlorocyclohexane, Gamma- (Lindane)58-89-9 5.7E-01 c**2.5E+00 c**9.1E-03 c 4.0E-02 c 4.2E-02 c**2.0E-01 2.4E-04 c**1.2E-03
1.8E+00 I 5.1E-04 I 1 0.1 Hexachlorocyclohexane, Technical 608-73-1 3.0E-01 c 1.3E+00 c 5.5E-03 c 2.4E-02 c 2.5E-02 c 1.5E-04 c
6.0E-03 I 2.0E-04 I V 1 1.6E+01 Hexachlorocyclopentadiene 77-47-4 1.8E+00 n 7.5E+00 n 2.1E-01 n 8.8E-01 n 4.1E-01 n 5.0E+01 1.3E-03 n 1.6E-01
4.0E-02 I 1.1E-05 C 7.0E-04 I 3.0E-02 I V 1 Hexachloroethane 67-72-1 1.8E+00 c*8.0E+00 c*2.6E-01 c 1.1E+00 c 3.3E-01 c*2.0E-04 c*
3.0E-04 I 1 0.1 Hexachlorophene 70-30-4 1.9E+01 n 2.5E+02 n 6.0E+00 n 8.0E+00 n
8.0E-02 I 4.0E-03 I 1 0.015 Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX)121-82-4 8.3E+00 c*3.8E+01 c 9.7E-01 c*3.7E-04 c*
1.0E-05 I V 1 3.4E+03 Hexamethylene Diisocyanate, 1,6-822-06-0 3.1E+00 n 1.3E+01 n 1.0E-02 n 4.4E-02 n 2.1E-02 n 2.1E-04 n
4.0E-04 C 1 0.1 Hexamethylene diisocyanate biuret 4035-89-6 5.7E+05 nm 2.4E+06 nm 4.2E-01 n 1.8E+00 n
4.0E-04 C 1 0.1 Hexamethylene diisocyanate isocyanurate 3779-63-3 5.7E+05 nm 2.4E+06 nm 4.2E-01 n 1.8E+00 n
4.0E-04 P 1 0.1 Hexamethylphosphoramide 680-31-9 2.5E+01 n 3.3E+02 n 8.0E+00 n 1.8E-03 n
2.0E-07 X 6.0E-01 P V 1 1.4E+02 Hexane, Commercial E5241997 1.2E+01 c*5.1E+01 c*1.4E+01 c*6.1E+01 c*2.8E+01 c*2.0E-01 c*
7.0E-01 I V 1 1.4E+02 Hexane, N-110-54-3 6.1E+02 ns 2.5E+03 ns 7.3E+02 n 3.1E+03 n 1.5E+03 n 1.0E+01 n
2.0E+00 P 1 0.1 Hexanedioic Acid 124-04-9 1.3E+05 nm 1.6E+06 nm 4.0E+04 n 9.9E+00 n
9.5E-03 P 7.0E-02 P 4.0E-04 P V 1 2.7E+02 Hexanol, 1-,2-ethyl- (2-Ethyl-1-hexanol)104-76-7 1.5E+01 n 6.3E+01 n 4.2E-01 n 1.8E+00 n 8.3E-01 n 2.3E-04 n
5.0E-03 I 3.0E-02 I V 1 3.3E+03 Hexanone, 2-591-78-6 2.0E+02 n 1.3E+03 n 3.1E+01 n 1.3E+02 n 3.8E+01 n 8.8E-03 n
3.3E-02 I 1 0.1 Hexazinone 51235-04-2 2.1E+03 n 2.7E+04 n 6.4E+02 n 3.0E-01 n
2.5E-02 I 1 0.1 Hexythiazox 78587-05-0 1.6E+03 n 2.1E+04 n 1.1E+02 n 5.0E-01 n
Page 5 of 11
TR
=
1
E
-
0
6

TH
Q
=
1
.
0
Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) May 2022
SFO
(mg/kg-day)-1
k
e
y
IUR
(ug/m3)-1
k
e
y
RfDo
(mg/kg-day)
k
e
y
RfCi
(mg/m3)
k
e
y
v
o
l mutagen GIABS ABSd
Csat
(mg/kg)Analyte CAS No.
Resident Soil
(mg/kg)key
Industrial Soil
(mg/kg)key
Resident Air
(ug/m3)key
Industrial Air
(ug/m3)key
Tapwater
(ug/L)key
MCL
(ug/L)
Risk-based
SSL
(mg/kg)key
MCL-based
SSL
(mg/kg)
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; D = OW; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; W = TEF applied; E = RPF applied; G = user's guide Section 5; M = mutagen; V = volatile; R = RBA applied ; c = cancer; n = noncancer; * = where: n SL < 100X c SL; ** = where n SL < 10X c SL; SSL values are based on
DAF=1; m = ceiling limit exceeded; s = Csat exceeded.
Toxicity and Chemical-specific Information Contaminant Screening Levels Protection of Groundwater SSLs
1.7E-02 O 1 0.1 Hydramethylnon 67485-29-4 1.1E+03 n 1.4E+04 n 3.4E+02 n 1.2E+05 n
3.0E+00 I 4.9E-03 I 3.0E-05 P V 1 1.1E+05 Hydrazine 302-01-2 3.2E-02 c*1.4E-01 c*5.7E-04 c*2.5E-03 c*1.1E-03 c*2.2E-07 c*
3.0E+00 I 4.9E-03 I 1 Hydrazine Sulfate 10034-93-2 2.3E-01 c 1.1E+00 c 5.7E-04 c 2.5E-03 c 2.6E-02 c
2.0E-02 I V 1 Hydrogen Chloride 7647-01-0 2.8E+07 nm 1.2E+08 nm 2.1E+01 n 8.8E+01 n 4.2E+01 n
4.0E-02 C 1.4E-02 C V 1 Hydrogen Fluoride 7664-39-3 3.1E+03 n 4.7E+04 n 1.5E+01 n 6.1E+01 n 2.8E+01 n
2.0E-03 I V 1 Hydrogen Sulfide 7783-06-4 2.8E+06 nm 1.2E+07 nm 2.1E+00 n 8.8E+00 n 4.2E+00 n
6.0E-02 P 4.0E-02 P 1 0.1 Hydroquinone 123-31-9 9.0E+00 c 3.8E+01 c 1.3E+00 c 8.7E-04 c
6.1E-02 O 1.1E-01 O 1 0.1 Imazalil 35554-44-0 8.9E+00 c 3.8E+01 c 9.0E-01 c 1.5E-02 c
2.5E-01 I 1 0.1 Imazaquin 81335-37-7 1.6E+04 n 2.1E+05 nm 4.9E+03 n 2.4E+01 n
2.5E+00 O 1 0.1 Imazethapyr 81335-77-5 1.6E+05 nm 2.1E+06 nm 4.7E+04 n 4.1E+01 n
1.0E-02 A 1 Iodine 7553-56-2 7.8E+02 n 1.2E+04 n 2.0E+02 n 1.2E+01 n
4.0E-02 I 1 0.1 Iprodione 36734-19-7 2.5E+03 n 3.3E+04 n 7.4E+02 n 2.2E-01 n
7.0E-01 P 1 Iron 7439-89-6 5.5E+04 n 8.2E+05 nm 1.4E+04 n 3.5E+02 n
3.0E-01 I V 1 1.0E+04 Isobutyl Alcohol 78-83-1 2.3E+04 ns 3.5E+05 nms 5.9E+03 n 1.2E+00 n
9.5E-04 I 2.0E-01 I 2.0E+00 C 1 0.1 Isophorone 78-59-1 5.7E+02 c*2.4E+03 c*2.1E+03 n 8.8E+03 n 7.8E+01 c*2.6E-02 c*
1.5E-02 I V 1 Isopropalin 33820-53-0 1.2E+03 n 1.8E+04 n 4.0E+01 n 9.2E-01 n
2.0E+00 P 2.0E-01 P V 1 1.1E+05 Isopropanol 67-63-0 5.6E+03 n 2.4E+04 n 2.1E+02 n 8.8E+02 n 4.1E+02 n 8.4E-02 n
1.0E-01 I 1 0.1 Isopropyl Methyl Phosphonic Acid 1832-54-8 6.3E+03 n 8.2E+04 n 2.0E+03 n 4.3E-01 n
5.0E-02 I 1 0.1 Isoxaben 82558-50-7 3.2E+03 n 4.1E+04 n 7.3E+02 n 2.0E+00 n
3.0E-01 A V 1 JP-7 E1737665 4.3E+08 nm 1.8E+09 nm 3.1E+02 n 1.3E+03 n 6.3E+02 n
8.0E-03 O 1 0.1 Lactofen 77501-63-4 5.1E+02 n 6.6E+03 n 1.0E+02 n 4.6E+00 n
2.0E-04 X 1 0.1 Lactonitrile 78-97-7 1.3E+01 n 1.6E+02 n 4.0E+00 n 8.1E-04 n
5.0E-05 P 1 Lanthanum 7439-91-0 3.9E+00 n 5.8E+01 n 1.0E+00 n
2.1E-05 P 1 0.1 Lanthanum Acetate Hydrate 100587-90-4 1.3E+00 n 1.7E+01 n 4.2E-01 n
1.9E-05 P 1 Lanthanum Chloride Heptahydrate 10025-84-0 1.5E+00 n 2.2E+01 n 3.7E-01 n
2.8E-05 P 1 Lanthanum Chloride, Anhydrous 10099-58-8 2.2E+00 n 3.3E+01 n 5.7E-01 n
1.6E-05 P 1 Lanthanum Nitrate Hexahydrate 10277-43-7 1.3E+00 n 1.9E+01 n 3.2E-01 n
Lead Compounds
8.5E-03 C 1.2E-05 C 1 ~Lead Phosphate 7446-27-7 8.2E+01 c 3.8E+02 c 2.3E-01 c 1.0E+00 c 9.1E+00 c
2.1E-01 C 8.0E-05 C 1 0.1 ~Lead acetate 301-04-2 2.6E+00 c 1.1E+01 c 3.5E-02 c 1.5E-01 c 3.7E-01 c 7.5E-05 c
1 ~Lead and Compounds 7439-92-1 4.0E+02 G 8.0E+02 G 1.5E-01 G 1.5E+01 G 1.5E+01 1.4E+01
3.8E-02 C 1.1E-05 C 1 0.1 ~Lead subacetate 1335-32-6 1.4E+01 c 6.0E+01 c 2.6E-01 c 1.1E+00 c 2.1E+00 c 4.5E-04 c
1.0E-07 I V 1 2.4E+00 ~Tetraethyl Lead 78-00-2 7.8E-03 n 1.2E-01 n 1.3E-03 n 4.7E-06 n
5.0E-06 P V 1 3.8E+02 Lewisite 541-25-3 3.9E-01 n 5.8E+00 n 9.0E-02 n 3.8E-05 n
7.7E-03 O 1 0.1 Linuron 330-55-2 4.9E+02 n 6.3E+03 n 1.3E+02 n 1.1E-01 n
2.0E-03 P 1 Lithium 7439-93-2 1.6E+02 n 2.3E+03 n 4.0E+01 n 1.2E+01 n
5.0E-04 I 1 0.1 MCPA 94-74-6 3.2E+01 n 4.1E+02 n 7.5E+00 n 2.0E-03 n
4.4E-03 O 1 0.1 MCPB 94-81-5 2.8E+02 n 3.6E+03 n 6.5E+01 n 2.6E-02 n
1.0E-03 I 1 0.1 MCPP 93-65-2 6.3E+01 n 8.2E+02 n 1.6E+01 n 4.7E-03 n
2.0E-02 I 1 0.1 Malathion 121-75-5 1.3E+03 n 1.6E+04 n 3.9E+02 n 1.0E-01 n
1.0E-01 I 7.0E-04 C 1 0.1 Maleic Anhydride 108-31-6 6.3E+03 n 8.0E+04 n 7.3E-01 n 3.1E+00 n 1.9E+03 n 3.8E-01 n
5.0E-01 I 1 0.1 Maleic Hydrazide 123-33-1 3.2E+04 n 4.1E+05 nm 1.0E+04 n 2.1E+00 n
1.0E-04 P 1 0.1 Malononitrile 109-77-3 6.3E+00 n 8.2E+01 n 2.0E+00 n 4.1E-04 n
3.0E-02 H 1 0.1 Mancozeb 8018-01-7 1.9E+03 n 2.5E+04 n 5.4E+02 n 7.6E-01 n
5.0E-03 I 1 0.1 Maneb 12427-38-2 3.2E+02 n 4.1E+03 n 9.8E+01 n 1.4E-01 n
1.4E-01 I 5.0E-05 I 1 Manganese (Diet)7439-96-5 5.2E-02 n 2.2E-01 n
2.4E-02 G 5.0E-05 I 0.04 Manganese (Non-diet)7439-96-5 1.8E+03 n 2.6E+04 n 5.2E-02 n 2.2E-01 n 4.3E+02 n 2.8E+01 n
9.0E-05 H 1 0.1 Mephosfolan 950-10-7 5.7E+00 n 7.4E+01 n 1.8E+00 n 2.6E-03 n
3.0E-02 I 1 0.1 Mepiquat Chloride 24307-26-4 1.9E+03 n 2.5E+04 n 6.0E+02 n 2.0E-01 n
1.1E-02 P 4.0E-03 P 1 0.1 Mercaptobenzothiazole, 2-149-30-4 4.9E+01 c**2.1E+02 c* 6.3E+00 c*1.8E-02 c*
Mercury Compounds
3.0E-04 I 3.0E-04 G 0.07 ~Mercuric Chloride (and other Mercury salts)7487-94-7 2.3E+01 n 3.5E+02 n 3.1E-01 n 1.3E+00 n 5.7E+00 n 2.0E+00
3.0E-04 I V 1 3.1E+00 ~Mercury (elemental)7439-97-6 1.1E+01 ns 4.6E+01 ns 3.1E-01 n 1.3E+00 n 6.3E-01 n 2.0E+00 3.3E-02 n 1.0E-01
1.0E-04 I 1 ~Methyl Mercury 22967-92-6 7.8E+00 n 1.2E+02 n 2.0E+00 n 1.4E+01 n
8.0E-05 I 1 0.1 ~Phenylmercuric Acetate 62-38-4 5.1E+00 n 6.6E+01 n 1.6E+00 n 5.0E-04 n
3.0E-05 I V 1 Merphos 150-50-5 2.3E+00 n 3.5E+01 n 6.0E-01 n 5.9E-02 n
6.0E-02 I 1 0.1 Metalaxyl 57837-19-1 3.8E+03 n 4.9E+04 n 1.2E+03 n 3.3E-01 n
1.0E-04 I 3.0E-02 P V 1 4.6E+03 Methacrylonitrile 126-98-7 7.5E+00 n 1.0E+02 n 3.1E+01 n 1.3E+02 n 1.9E+00 n 4.3E-04 n
5.0E-05 I 1 0.1 Methamidophos 10265-92-6 3.2E+00 n 4.1E+01 n 1.0E+00 n 2.1E-04 n
2.0E+00 I 2.0E+01 I V 1 1.1E+05 Methanol 67-56-1 1.2E+05 nms 1.2E+06 nms 2.1E+04 n 8.8E+04 n 2.0E+04 n 4.1E+00 n
1.5E-03 O 1 0.1 Methidathion 950-37-8 9.5E+01 n 1.2E+03 n 2.9E+01 n 7.1E-03 n
2.5E-02 I 1 0.1 Methomyl 16752-77-5 1.6E+03 n 2.1E+04 n 5.0E+02 n 1.1E-01 n
4.9E-02 C 1 0.1 Methoxy-5-nitroaniline, 2-99-59-2 1.1E+01 c 4.7E+01 c 1.5E+00 c 5.3E-04 c
5.0E-03 I 1 0.1 Methoxychlor 72-43-5 3.2E+02 n 4.1E+03 n 3.7E+01 n 4.0E+01 2.0E+00 n 2.2E+00
8.0E-03 P 1.0E-03 P V 1 1.2E+05 Methoxyethanol Acetate, 2-110-49-6 1.1E+02 n 5.1E+02 n 1.0E+00 n 4.4E+00 n 2.1E+00 n 4.2E-04 n
5.0E-03 P 7.0E-03 P V 1 1.1E+05 Methoxyethanol, 2-109-86-4 2.6E+02 n 2.0E+03 n 7.3E+00 n 3.1E+01 n 1.3E+01 n 2.6E-03 n
1.0E+00 X V 1 2.9E+04 Methyl Acetate 79-20-9 7.8E+04 ns 1.2E+06 nms 2.0E+04 n 4.1E+00 n
2.0E-02 P V 1 6.8E+03 Methyl Acrylate 96-33-3 1.5E+02 n 6.1E+02 n 2.1E+01 n 8.8E+01 n 4.2E+01 n 8.9E-03 n
6.0E-01 I 5.0E+00 I V 1 2.8E+04 Methyl Ethyl Ketone (2-Butanone)78-93-3 2.7E+04 n 1.9E+05 nms 5.2E+03 n 2.2E+04 n 5.6E+03 n 1.2E+00 n
1.0E-03 X 1.0E-03 P 2.0E-05 X V 1 1.8E+05 Methyl Hydrazine 60-34-4 1.4E-01 c**6.2E-01 c**2.8E-03 c**1.2E-02 c**5.6E-03 c**1.3E-06 c**
3.0E+00 I V 1 3.4E+03 Methyl Isobutyl Ketone (4-methyl-2-pentanone)108-10-1 3.3E+04 ns 1.4E+05 nms 3.1E+03 n 1.3E+04 n 6.3E+03 n 1.4E+00 n
1.0E-03 C V 1 1.0E+04 Methyl Isocyanate 624-83-9 4.6E+00 n 1.9E+01 n 1.0E+00 n 4.4E+00 n 2.1E+00 n 5.9E-04 n
1.4E+00 I 7.0E-01 I V 1 2.4E+03 Methyl Methacrylate 80-62-6 4.4E+03 ns 1.9E+04 ns 7.3E+02 n 3.1E+03 n 1.4E+03 n 3.0E-01 n
2.5E-04 I 1 0.1 Methyl Parathion 298-00-0 1.6E+01 n 2.1E+02 n 4.5E+00 n 7.4E-03 n
6.0E-02 X 1 0.1 Methyl Phosphonic Acid 993-13-5 3.8E+03 n 4.9E+04 n 1.2E+03 n 2.4E-01 n
6.0E-03 H 4.0E-02 H V 1 3.9E+02 Methyl Styrene (Mixed Isomers)25013-15-4 3.2E+02 n 2.6E+03 ns 4.2E+01 n 1.8E+02 n 2.3E+01 n 3.8E-02 n
9.9E-02 C 2.8E-05 C 1 0.1 Methyl methanesulfonate 66-27-3 5.5E+00 c 2.3E+01 c 1.0E-01 c 4.4E-01 c 7.9E-01 c 1.6E-04 c
1.8E-03 C 2.6E-07 C 3.0E+00 I V 1 8.9E+03 Methyl tert-Butyl Ether (MTBE)1634-04-4 4.7E+01 c 2.1E+02 c 1.1E+01 c 4.7E+01 c 1.4E+01 c 3.2E-03 c
Page 6 of 11
TR
=
1
E
-
0
6

TH
Q
=
1
.
0
Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) May 2022
SFO
(mg/kg-day)-1
k
e
y
IUR
(ug/m3)-1
k
e
y
RfDo
(mg/kg-day)
k
e
y
RfCi
(mg/m3)
k
e
y
v
o
l mutagen GIABS ABSd
Csat
(mg/kg)Analyte CAS No.
Resident Soil
(mg/kg)key
Industrial Soil
(mg/kg)key
Resident Air
(ug/m3)key
Industrial Air
(ug/m3)key
Tapwater
(ug/L)key
MCL
(ug/L)
Risk-based
SSL
(mg/kg)key
MCL-based
SSL
(mg/kg)
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; D = OW; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; W = TEF applied; E = RPF applied; G = user's guide Section 5; M = mutagen; V = volatile; R = RBA applied ; c = cancer; n = noncancer; * = where: n SL < 100X c SL; ** = where n SL < 10X c SL; SSL values are based on
DAF=1; m = ceiling limit exceeded; s = Csat exceeded.
Toxicity and Chemical-specific Information Contaminant Screening Levels Protection of Groundwater SSLs
3.0E-04 X 1 0.1 Methyl-1,4-benzenediamine dihydrochloride, 2-615-45-2 1.9E+01 n 2.5E+02 n 6.0E+00 n 3.6E-03 n
3.0E+00 X V 1 2.5E+03 Methyl-2-Pentanol, 4-108-11-2 5.4E+04 ns 2.3E+05 nms 3.1E+03 n 1.3E+04 n 6.3E+03 n 1.4E+00 n
9.0E-03 P 2.0E-02 X 1 0.1 Methyl-5-Nitroaniline, 2-99-55-8 6.0E+01 c*2.6E+02 c* 8.2E+00 c*4.6E-03 c*
8.3E+00 C 2.4E-03 C 1 0.1 Methyl-N-nitro-N-nitrosoguanidine, N-70-25-7 6.5E-02 c 2.8E-01 c 1.2E-03 c 5.1E-03 c 9.4E-03 c 3.2E-06 c
1.3E-01 C 3.7E-05 C 1 0.1 Methylaniline Hydrochloride, 2-636-21-5 4.2E+00 c 1.8E+01 c 7.6E-02 c 3.3E-01 c 6.0E-01 c 2.6E-04 c
1.0E-02 A 1 0.1 Methylarsonic acid 124-58-3 6.3E+02 n 8.2E+03 n 2.0E+02 n 5.8E-02 n
2.0E-04 X 1 0.1 Methylbenzene,1-4-diamine monohydrochloride, 2-74612-12-7 1.3E+01 n 1.6E+02 n 4.0E+00 n
1.0E-01 X 3.0E-04 X 1 0.1 Methylbenzene-1,4-diamine sulfate, 2-615-50-9 5.4E+00 c**2.3E+01 c*7.8E-01 c**
2.2E+01 C 6.3E-03 C M 1 0.1 Methylcholanthrene, 3-56-49-5 5.5E-03 c 1.0E-01 c 1.6E-04 c 1.9E-03 c 1.1E-03 c 2.2E-03 c
2.0E-03 I 1.0E-08 I 6.0E-03 I 6.0E-01 I V M 1 3.3E+03 Methylene Chloride 75-09-2 5.7E+01 c**1.0E+03 c**1.0E+02 c**1.2E+03 c**1.1E+01 c**5.0E+00 2.9E-03 c**1.3E-03
1.0E-01 P 4.3E-04 C 2.0E-03 P M 1 0.1 Methylene-bis(2-chloroaniline), 4,4'-101-14-4 1.2E+00 c 2.3E+01 c*2.4E-03 c 2.9E-02 c 1.6E-01 c 1.8E-03 c
4.6E-02 I 1.3E-05 C 1 0.1 Methylene-bis(N,N-dimethyl) Aniline, 4,4'-101-61-1 1.2E+01 c 5.0E+01 c 2.2E-01 c 9.4E-01 c 7.0E-01 c 3.9E-03 c
1.6E+00 C 4.6E-04 C 2.0E-02 C 1 0.1 Methylenebisbenzenamine, 4,4'-101-77-9 3.4E-01 c 1.4E+00 c 6.1E-03 c 2.7E-02 c 4.7E-02 c 2.1E-04 c
6.0E-04 I 1 0.1 Methylenediphenyl Diisocyanate 101-68-8 8.5E+05 nm 3.6E+06 nm 6.3E-01 n 2.6E+00 n
7.0E-02 H V 1 5.0E+02 Methylstyrene, Alpha-98-83-9 5.5E+03 ns 8.2E+04 ns 7.8E+02 n 1.2E+00 n
1.5E-01 I 1 0.1 Metolachlor 51218-45-2 9.5E+03 n 1.2E+05 nm 2.7E+03 n 3.2E+00 n
2.5E-02 I 1 0.1 Metribuzin 21087-64-9 1.6E+03 n 2.1E+04 n 4.9E+02 n 1.5E-01 n
2.5E-01 I 1 0.1 Metsulfuron-methyl 74223-64-6 1.6E+04 n 2.1E+05 nm 4.9E+03 n 1.9E+00 n
4.5E-06 X 1.0E-02 X 1.0E-01 P V 1 6.9E+00 Midrange Aliphatic Hydrocarbon Streams E1790669 6.5E-01 c 2.8E+00 c 6.2E-01 c 2.7E+00 c 1.2E+00 c*1.8E-02 c*
3.0E+00 P V 1 3.4E-01 Mineral oils 8012-95-1 2.3E+05 nms 3.5E+06 nms 6.0E+04 n 2.4E+03 n
1.8E+01 C 5.1E-03 C 2.0E-04 I V 1 Mirex 2385-85-5 3.6E-02 c 1.7E-01 c 5.5E-04 c 2.4E-03 c 8.8E-04 c 6.3E-04 c
2.0E-03 I 1 0.1 Molinate 2212-67-1 1.3E+02 n 1.6E+03 n 3.0E+01 n 1.7E-02 n
5.0E-03 I 2.0E-03 A 1 Molybdenum 7439-98-7 3.9E+02 n 5.8E+03 n 2.1E+00 n 8.8E+00 n 1.0E+02 n 2.0E+00 n
1.0E-01 I 1 Monochloramine 10599-90-3 7.8E+03 n 1.2E+05 nm 2.0E+03 n 4.0E+03(G)
2.0E-03 P 1 0.1 Monomethylaniline 100-61-8 1.3E+02 n 1.6E+03 n 3.8E+01 n 1.4E-02 n
2.5E-02 I 1 0.1 Myclobutanil 88671-89-0 1.6E+03 n 2.1E+04 n 4.5E+02 n 5.6E+00 n
3.0E-04 X 1 0.1 N,N'-Diphenyl-1,4-benzenediamine 74-31-7 1.9E+01 n 2.5E+02 n 3.6E+00 n 3.7E-01 n
2.0E-03 I V 1 Naled 300-76-5 1.6E+02 n 2.3E+03 n 4.0E+01 n 1.8E-02 n
3.0E-02 X 1.0E-01 P V 1 Naphtha, High Flash Aromatic (HFAN)64742-95-6 2.3E+03 n 3.5E+04 n 1.0E+02 n 4.4E+02 n 1.5E+02 n
1.8E+00 C 0.0E+00 C 1 0.1 Naphthylamine, 2-91-59-8 3.0E-01 c 1.3E+00 c 3.9E-02 c 2.0E-04 c
1.2E-01 O 1 0.1 Napropamide 15299-99-7 7.6E+03 n 9.8E+04 n 2.0E+03 n 1.3E+01 n
2.6E-04 C 1.1E-02 C 1.4E-05 C 1 0.1 Nickel Acetate 373-02-4 6.7E+02 n 8.1E+03 n 1.1E-02 c**4.7E-02 c**2.2E+02 n 4.5E-02 n
2.6E-04 C 1.1E-02 C 1.4E-05 C 1 0.1 Nickel Carbonate 3333-67-3 6.7E+02 n 8.1E+03 n 1.1E-02 c**4.7E-02 c**2.2E+02 n
2.6E-04 C 1.1E-02 C 1.4E-05 C V 1 Nickel Carbonyl 13463-39-3 8.2E+02 n 1.1E+04 n 1.1E-02 c**4.7E-02 c**2.2E-02 c**
2.6E-04 C 1.1E-02 C 1.4E-05 C 0.04 Nickel Hydroxide 12054-48-7 8.2E+02 n 1.1E+04 n 1.1E-02 c**4.7E-02 c**2.0E+02 n
2.6E-04 C 1.1E-02 C 2.0E-05 C 0.04 Nickel Oxide 1313-99-1 8.4E+02 n 1.2E+04 n 1.1E-02 c**4.7E-02 c**2.0E+02 n
2.4E-04 I 1.1E-02 C 1.4E-05 C 0.04 Nickel Refinery Dust E715532 8.2E+02 n 1.1E+04 n 1.2E-02 c**5.1E-02 c**2.2E+02 n 3.2E+01 n
2.6E-04 C 2.0E-02 I 9.0E-05 A 0.04 Nickel Soluble Salts 7440-02-0 1.5E+03 n 2.2E+04 n 1.1E-02 c**4.7E-02 c**3.9E+02 n 2.6E+01 n
1.7E+00 C 4.8E-04 I 1.1E-02 C 1.4E-05 C 0.04 Nickel Subsulfide 12035-72-2 4.1E-01 c 1.9E+00 c 5.8E-03 c**2.6E-02 c**4.5E-02 c
9.1E-01 C 2.6E-04 C 1.1E-02 C 1.4E-05 C 1 0.1 Nickelocene 1271-28-9 6.0E-01 c 2.5E+00 c 1.1E-02 c**4.7E-02 c**8.6E-02 c
1.6E+00 I 1 Nitrate (measured as nitrogen)14797-55-8 1.3E+05 nm 1.9E+06 nm 3.2E+04 n 1.0E+04
1 Nitrate + Nitrite (measured as nitrogen)E701177 1.0E+04
1.0E-01 I 1 Nitrite (measured as nitrogen)14797-65-0 7.8E+03 n 1.2E+05 nm 2.0E+03 n 1.0E+03
1.0E-02 X 5.0E-05 X 1 0.1 Nitroaniline, 2-88-74-4 6.3E+02 n 8.0E+03 n 5.2E-02 n 2.2E-01 n 1.9E+02 n 8.0E-02 n
2.0E-02 P 4.0E-03 P 6.0E-03 P 1 0.1 Nitroaniline, 4-100-01-6 2.7E+01 c**1.1E+02 c*6.3E+00 n 2.6E+01 n 3.8E+00 c*1.6E-03 c*
4.0E-05 I 2.0E-03 I 9.0E-03 I V 1 3.1E+03 Nitrobenzene 98-95-3 5.1E+00 c*2.2E+01 c*7.0E-02 c 3.1E-01 c 1.4E-01 c*9.2E-05 c*
3.0E+03 P 1 0.1 Nitrocellulose 9004-70-0 1.9E+08 nm 2.5E+09 nm 6.0E+07 n 1.3E+04 n
7.0E-02 H 1 0.1 Nitrofurantoin 67-20-9 4.4E+03 n 5.7E+04 n 1.4E+03 n 6.1E-01 n
1.3E+00 C 3.7E-04 C 1 0.1 Nitrofurazone 59-87-0 4.2E-01 c 1.8E+00 c 7.6E-03 c 3.3E-02 c 6.0E-02 c 5.4E-05 c
1.7E-02 P 1.0E-04 P 1 0.1 Nitroglycerin 55-63-0 6.3E+00 n 8.2E+01 n 2.0E+00 n 8.5E-04 n
1.0E-01 I 1 0.1 Nitroguanidine 556-88-7 6.3E+03 n 8.2E+04 n 2.0E+03 n 4.8E-01 n
8.8E-06 P 5.0E-03 P V 1 1.8E+04 Nitromethane 75-52-5 5.4E+00 c*2.4E+01 c*3.2E-01 c*1.4E+00 c*6.4E-01 c*1.4E-04 c*
5.8E-04 X 2.0E-02 I V 1 4.9E+03 Nitropropane, 2-79-46-9 6.4E-02 c 2.8E-01 c 4.8E-03 c 2.1E-02 c 9.7E-03 c 2.5E-06 c
2.7E+01 C 7.7E-03 C M 1 0.1 Nitroso-N-ethylurea, N-759-73-9 4.5E-03 c 8.5E-02 c 1.3E-04 c 1.6E-03 c 9.2E-04 c 2.2E-07 c
1.2E+02 C 3.4E-02 C M 1 0.1 Nitroso-N-methylurea, N-684-93-5 1.0E-03 c 1.9E-02 c 3.0E-05 c 3.6E-04 c 2.1E-04 c 4.6E-08 c
5.4E+00 I 1.6E-03 I V 1 Nitroso-di-N-butylamine, N-924-16-3 9.9E-02 c 4.6E-01 c 1.8E-03 c 7.7E-03 c 2.7E-03 c 5.5E-06 c
7.0E+00 I 2.0E-03 C 1 0.1 Nitroso-di-N-propylamine, N-621-64-7 7.8E-02 c 3.3E-01 c 1.4E-03 c 6.1E-03 c 1.1E-02 c 8.1E-06 c
2.8E+00 I 8.0E-04 C 1 0.1 Nitrosodiethanolamine, N-1116-54-7 1.9E-01 c 8.2E-01 c 3.5E-03 c 1.5E-02 c 2.8E-02 c 5.6E-06 c
1.5E+02 I 4.3E-02 I M 1 0.1 Nitrosodiethylamine, N-55-18-5 8.1E-04 c 1.5E-02 c 2.4E-05 c 2.9E-04 c 1.7E-04 c 6.1E-08 c
5.1E+01 I 1.4E-02 I 8.0E-06 P 4.0E-05 X V M 1 2.4E+05 Nitrosodimethylamine, N-62-75-9 2.0E-03 c 3.4E-02 c 7.2E-05 c 8.8E-04 c 1.1E-04 c 2.7E-08 c
4.9E-03 I 2.6E-06 C 1 0.1 Nitrosodiphenylamine, N-86-30-6 1.1E+02 c 4.7E+02 c 1.1E+00 c 4.7E+00 c 1.2E+01 c 6.7E-02 c
2.2E+01 I 6.3E-03 C V 1 1.1E+05 Nitrosomethylethylamine, N-10595-95-6 2.0E-02 c 9.1E-02 c 4.5E-04 c 1.9E-03 c 7.1E-04 c 2.0E-07 c
6.7E+00 C 1.9E-03 C 1 0.1 Nitrosomorpholine [N-]59-89-2 8.1E-02 c 3.4E-01 c 1.5E-03 c 6.5E-03 c 1.2E-02 c 2.8E-06 c
9.4E+00 C 2.7E-03 C 1 0.1 Nitrosopiperidine [N-]100-75-4 5.8E-02 c 2.4E-01 c 1.0E-03 c 4.5E-03 c 8.2E-03 c 4.4E-06 c
2.1E+00 I 6.1E-04 I 1 0.1 Nitrosopyrrolidine, N-930-55-2 2.6E-01 c 1.1E+00 c 4.6E-03 c 2.0E-02 c 3.7E-02 c 1.4E-05 c
1.0E-04 X 1 0.1 Nitrotoluene, m-99-08-1 6.3E+00 n 8.2E+01 n 1.7E+00 n 1.6E-03 n
2.2E-01 P 9.0E-04 P V 1 1.5E+03 Nitrotoluene, o-88-72-2 3.2E+00 c*1.5E+01 c*3.1E-01 c*3.0E-04 c*
1.6E-02 P 4.0E-03 P 1 0.1 Nitrotoluene, p-99-99-0 3.4E+01 c**1.4E+02 c*4.3E+00 c*4.0E-03 c*
3.0E-04 X 2.0E-02 P V 1 6.9E+00 Nonane, n-111-84-2 1.1E+01 ns 7.2E+01 ns 2.1E+01 n 8.8E+01 n 5.3E+00 n 7.5E-02 n
1.5E-03 O 1 0.1 Norflurazon 27314-13-2 9.5E+01 n 1.2E+03 n 2.9E+01 n 1.9E-01 n
3.0E-03 I 1 0.1 Octabromodiphenyl Ether 32536-52-0 1.9E+02 n 2.5E+03 n 6.0E+01 n 1.2E+01 n
5.0E-02 I 1 0.006 Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX)2691-41-0 3.9E+03 n 5.7E+04 n 1.0E+03 n 1.3E+00 n
2.0E-03 H 1 0.1 Octamethylpyrophosphoramide 152-16-9 1.3E+02 n 1.6E+03 n 4.0E+01 n 9.6E-03 n
7.8E-03 O 1.9E-01 O 1 0.1 Oryzalin 19044-88-3 7.0E+01 c 2.9E+02 c 7.9E+00 c 1.5E-02 c
5.0E-03 I 1 0.1 Oxadiazon 19666-30-9 3.2E+02 n 4.1E+03 n 4.7E+01 n 4.8E-01 n
2.5E-02 I 1 0.1 Oxamyl 23135-22-0 1.6E+03 n 2.1E+04 n 5.0E+02 n 2.0E+02 1.1E-01 n 4.4E-02
7.3E-02 O 4.0E-02 O 1 0.1 Oxyfluorfen 42874-03-3 7.4E+00 c 3.1E+01 c 5.4E-01 c 4.3E-02 c
1.3E-02 I 1 0.1 Paclobutrazol 76738-62-0 8.2E+02 n 1.1E+04 n 2.3E+02 n 4.6E-01 n
Page 7 of 11
TR
=
1
E
-
0
6

TH
Q
=
1
.
0
Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) May 2022
SFO
(mg/kg-day)-1
k
e
y
IUR
(ug/m3)-1
k
e
y
RfDo
(mg/kg-day)
k
e
y
RfCi
(mg/m3)
k
e
y
v
o
l mutagen GIABS ABSd
Csat
(mg/kg)Analyte CAS No.
Resident Soil
(mg/kg)key
Industrial Soil
(mg/kg)key
Resident Air
(ug/m3)key
Industrial Air
(ug/m3)key
Tapwater
(ug/L)key
MCL
(ug/L)
Risk-based
SSL
(mg/kg)key
MCL-based
SSL
(mg/kg)
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; D = OW; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; W = TEF applied; E = RPF applied; G = user's guide Section 5; M = mutagen; V = volatile; R = RBA applied ; c = cancer; n = noncancer; * = where: n SL < 100X c SL; ** = where n SL < 10X c SL; SSL values are based on
DAF=1; m = ceiling limit exceeded; s = Csat exceeded.
Toxicity and Chemical-specific Information Contaminant Screening Levels Protection of Groundwater SSLs
4.5E-03 I 1 0.1 Paraquat Dichloride 1910-42-5 2.8E+02 n 3.7E+03 n 9.0E+01 n 1.2E+00 n
6.0E-03 H 1 0.1 Parathion 56-38-2 3.8E+02 n 4.9E+03 n 8.6E+01 n 4.3E-01 n
5.0E-02 H V 1 Pebulate 1114-71-2 3.9E+03 n 5.8E+04 n 5.6E+02 n 4.5E-01 n
3.0E-01 O 1 0.1 Pendimethalin 40487-42-1 1.9E+04 n 2.5E+05 nm 1.4E+03 n 1.6E+01 n
2.0E-03 I V 1 3.1E-01 Pentabromodiphenyl Ether 32534-81-9 1.6E+02 ns 2.3E+03 ns 4.0E+01 n 1.7E+00 n
1.0E-04 I 1 0.1 Pentabromodiphenyl ether, 2,2',4,4',5- (BDE-99)60348-60-9 6.3E+00 n 8.2E+01 n 2.0E+00 n 8.7E-02 n
8.0E-04 I V 1 Pentachlorobenzene 608-93-5 6.3E+01 n 9.3E+02 n 3.2E+00 n 2.4E-02 n
9.0E-02 P V 1 4.6E+02 Pentachloroethane 76-01-7 7.7E+00 c 3.6E+01 c 6.5E-01 c 3.1E-04 c
2.6E-01 H 3.0E-03 I V 1 Pentachloronitrobenzene 82-68-8 2.7E+00 c*1.3E+01 c 1.2E-01 c 1.5E-03 c
4.0E-01 I 5.1E-06 C 5.0E-03 I 1 0.25 Pentachlorophenol 87-86-5 1.0E+00 c 4.0E+00 c 5.5E-01 c 2.4E+00 c 4.1E-02 c 1.0E+00 5.7E-05 c 1.4E-03
4.3E-03 X 9.0E-03 P 1 0.1 Pentaerythritol tetranitrate (PETN)78-11-5 1.3E+02 c**5.3E+02 c*1.7E+01 c**2.6E-02 c**
1.0E-04 X 1 0.1 Pentamethylphosphoramide (PMPA)10159-46-3 6.3E+00 n 8.2E+01 n 2.0E+00 n 4.1E-04 n
1.0E+00 P V 1 3.9E+02 Pentane, n-109-66-0 8.1E+02 ns 3.4E+03 ns 1.0E+03 n 4.4E+03 n 2.1E+03 n 1.0E+01 n
Per- and Polyfluoroalkyl Substances (PFAS)
3.0E-06 D 1 0.1 ~Ammonium perfluoro-2-methyl-3-oxahexanoate 62037-80-3 1.9E-01 n 2.5E+00 n 6.0E-02 n 1.3E-05 n
3.0E-06 D V 1 ~Hexafluoropropylene oxide dimer acid (HFPO-DA)13252-13-6 2.3E-01 n 3.5E+00 n 6.0E-02 n
3.0E-04 P 1 0.1 ~Perfluorobutanesulfonate 45187-15-3 1.9E+01 n 2.5E+02 n 6.0E+00 n 1.9E-03 n
3.0E-04 P 1 0.1 ~Perfluorobutanesulfonic acid (PFBS)375-73-5 1.9E+01 n 2.5E+02 n 6.0E+00 n 1.9E-03 n
2.0E-05 A 1 0.1 ~Perfluorohexanesulfonate 108427-53-8 1.3E+00 n 1.6E+01 n 3.9E-01 n 1.7E-04 n
2.0E-05 A 1 0.1 ~Perfluorohexanesulfonic acid (PFHxS)355-46-4 1.3E+00 n 1.6E+01 n 3.9E-01 n 1.7E-04 n
3.0E-06 A 1 0.1 ~Perfluorononanoate 72007-68-2 1.9E-01 n 2.5E+00 n 5.9E-02 n 2.5E-04 n
3.0E-06 A 1 0.1 ~Perfluorononanoic acid (PFNA)375-95-1 1.9E-01 n 2.5E+00 n 5.9E-02 n 2.5E-04 n
2.0E-06 A 1 0.1 ~Perfluorooctanesulfonate 45298-90-6 1.3E-01 n 1.6E+00 n 4.0E-02 n 3.8E-05 n
2.0E-06 A 1 0.1 ~Perfluorooctanesulfonic acid (PFOS)1763-23-1 1.3E-01 n 1.6E+00 n 4.0E-02 n 3.8E-05 n
7.0E-02 D 3.0E-06 A 1 0.1 ~Perfluorooctanoate 45285-51-6 1.9E-01 n 2.5E+00 n 6.0E-02 n 9.1E-04 n
7.0E-02 D 3.0E-06 A 1 0.1 ~Perfluorooctanoic acid (PFOA)335-67-1 1.9E-01 n 2.5E+00 n 6.0E-02 n 9.1E-04 n
3.0E-04 P 1 0.1 ~Potassium perfluorobutanesulfonate 29420-49-3 1.9E+01 n 2.5E+02 n 6.0E+00 n 3.0E-03 n
2.0E-06 A 1 0.1 ~Potassium perfluorooctanesulfonate 2795-39-3 1.3E-01 n 1.6E+00 n 4.0E-02 n
Perchlorates
7.0E-04 I 1 ~Ammonium Perchlorate 7790-98-9 5.5E+01 n 8.2E+02 n 1.4E+01 n
7.0E-04 I 1 ~Lithium Perchlorate 7791-03-9 5.5E+01 n 8.2E+02 n 1.4E+01 n
7.0E-04 I 1 ~Perchlorate and Perchlorate Salts 14797-73-0 5.5E+01 n 8.2E+02 n 1.4E+01 n 1.5E+01(G)
7.0E-04 I 1 ~Potassium Perchlorate 7778-74-7 5.5E+01 n 8.2E+02 n 1.4E+01 n
7.0E-04 I 1 ~Sodium Perchlorate 7601-89-0 5.5E+01 n 8.2E+02 n 1.4E+01 n
5.0E-02 I 1 0.1 Permethrin 52645-53-1 3.2E+03 n 4.1E+04 n 1.0E+03 n 2.4E+02 n
2.2E-03 C 6.3E-07 C 1 0.1 Phenacetin 62-44-2 2.5E+02 c 1.0E+03 c 4.5E+00 c 1.9E+01 c 3.4E+01 c 9.7E-03 c
2.4E-01 O 1 0.1 Phenmedipham 13684-63-4 1.5E+04 n 2.0E+05 nm 3.8E+03 n 2.1E+01 n
3.0E-01 I 2.0E-01 C 1 0.1 Phenol 108-95-2 1.9E+04 n 2.5E+05 nm 2.1E+02 n 8.8E+02 n 5.8E+03 n 3.3E+00 n
4.0E-03 I 1 0.1 Phenol, 2-(1-methylethoxy)-, methylcarbamate 114-26-1 2.5E+02 n 3.3E+03 n 7.8E+01 n 2.5E-02 n
5.0E-04 X 1 0.1 Phenothiazine 92-84-2 3.2E+01 n 4.1E+02 n 4.3E+00 n 1.4E-02 n
2.0E-04 X V 1 1.3E+02 Phenyl Isothiocyanate 103-72-0 1.6E+01 n 2.3E+02 ns 2.6E+00 n 1.7E-03 n
6.0E-03 I 1 0.1 Phenylenediamine, m-108-45-2 3.8E+02 n 4.9E+03 n 1.2E+02 n 3.2E-02 n
1.2E-01 P 4.0E-03 P 1 0.1 Phenylenediamine, o-95-54-5 4.5E+00 c*1.9E+01 c 6.5E-01 c 1.7E-04 c
1.0E-03 X 1 0.1 Phenylenediamine, p-106-50-3 6.3E+01 n 8.2E+02 n 2.0E+01 n 5.4E-03 n
1.9E-03 H 1 0.1 Phenylphenol, 2-90-43-7 2.8E+02 c 1.2E+03 c 3.0E+01 c 4.1E-01 c
2.0E-04 H 1 0.1 Phorate 298-02-2 1.3E+01 n 1.6E+02 n 3.0E+00 n 3.4E-03 n
3.0E-04 I V 1 1.6E+03 Phosgene 75-44-5 3.1E-01 n 1.3E+00 n 3.1E-01 n 1.3E+00 n 6.3E-01 n 1.6E-04 n
2.0E-02 I 1 0.1 Phosmet 732-11-6 1.3E+03 n 1.6E+04 n 3.7E+02 n 8.2E-02 n
3.0E-04 I 3.0E-04 I V 1 Phosphine 7803-51-2 2.3E+01 n 3.5E+02 n 3.1E-01 n 1.3E+00 n 5.7E-01 n
1.0E-02 I 1 Phosphoric Acid 7664-38-2 1.4E+07 nm 6.0E+07 nm 1.0E+01 n 4.4E+01 n
2.0E-05 I V 1 Phosphorus, White 7723-14-0 1.6E+00 n 2.3E+01 n 4.0E-01 n 1.5E-03 n
Phthalates
1.4E-02 I 2.4E-06 C 2.0E-02 I 1 0.1 ~Bis(2-ethylhexyl)phthalate 117-81-7 3.9E+01 c*1.6E+02 c 1.2E+00 c 5.1E+00 c 5.6E+00 c*6.0E+00 1.3E+00 c*1.4E+00
1.9E-03 P 2.0E-01 I 1 0.1 ~Butyl Benzyl Phthalate 85-68-7 2.9E+02 c*1.2E+03 c 1.6E+01 c 2.4E-01 c
1.0E+00 I 1 0.1 ~Butylphthalyl Butylglycolate 85-70-1 6.3E+04 n 8.2E+05 nm 1.3E+04 n 3.1E+02 n
1.0E-01 I 1 0.1 ~Dibutyl Phthalate 84-74-2 6.3E+03 n 8.2E+04 n 9.0E+02 n 2.3E+00 n
8.0E-01 I 1 0.1 ~Diethyl Phthalate 84-66-2 5.1E+04 n 6.6E+05 nm 1.5E+04 n 6.1E+00 n
1.0E-01 I V 1 ~Dimethylterephthalate 120-61-6 7.8E+03 n 1.2E+05 nm 1.9E+03 n 4.9E-01 n
1.0E-02 P 1 0.1 ~Octyl Phthalate, di-N-117-84-0 6.3E+02 n 8.2E+03 n 2.0E+02 n 5.7E+01 n
5.0E-01 X 1 0.1 ~Phthalic Acid, p-100-21-0 3.2E+04 n 4.1E+05 nm 9.4E+03 n 3.4E+00 n
2.0E+00 I 2.0E-02 C 1 0.1 ~Phthalic Anhydride 85-44-9 1.3E+05 nm 1.6E+06 nm 2.1E+01 n 8.8E+01 n 3.9E+04 n 8.5E+00 n
7.0E-02 I 1 0.1 Picloram 1918-02-1 4.4E+03 n 5.7E+04 n 1.4E+03 n 5.0E+02 3.8E-01 n 1.4E-01
1.0E-04 X 1 0.1 Picramic Acid (2-Amino-4,6-dinitrophenol)96-91-3 6.3E+00 n 8.2E+01 n 2.0E+00 n 1.3E-03 n
2.0E-03 X 1 0.1 Picric Acid (2,4,6-Trinitrophenol)88-89-1 1.3E+02 n 1.6E+03 n 4.0E+01 n 1.9E-01 n
7.3E-04 O 1 0.1 Pirimiphos, Methyl 29232-93-7 4.6E+01 n 6.0E+02 n 8.9E+00 n 8.4E-03 n
3.0E+01 C 8.6E-03 C 7.0E-06 H 1 0.1 Polybrominated Biphenyls 36355-01-8 1.8E-02 c*7.7E-02 c*3.3E-04 c 1.4E-03 c 2.6E-03 c*
Polychlorinated Biphenyls (PCBs)
7.0E-02 G 2.0E-05 G 7.0E-05 I V 1 0.14 ~Aroclor 1016 12674-11-2 4.1E+00 n 2.7E+01 c**1.4E-01 c 6.1E-01 c 2.2E-01 c**2.1E-02 c**
2.0E+00 G 5.7E-04 G V 1 0.14 ~Aroclor 1221 11104-28-2 2.0E-01 c 8.3E-01 c 4.9E-03 c 2.1E-02 c 4.7E-03 c 8.0E-05 c
2.0E+00 G 5.7E-04 G V 1 0.14 ~Aroclor 1232 11141-16-5 1.7E-01 c 7.2E-01 c 4.9E-03 c 2.1E-02 c 4.7E-03 c 8.0E-05 c
2.0E+00 G 5.7E-04 G V 1 0.14 ~Aroclor 1242 53469-21-9 2.3E-01 c 9.5E-01 c 4.9E-03 c 2.1E-02 c 7.8E-03 c 1.2E-03 c
2.0E+00 G 5.7E-04 G V 1 0.14 ~Aroclor 1248 12672-29-6 2.3E-01 c 9.4E-01 c 4.9E-03 c 2.1E-02 c 7.8E-03 c 1.2E-03 c
2.0E+00 G 5.7E-04 G 2.0E-05 I V 1 0.14 ~Aroclor 1254 11097-69-1 2.4E-01 c**9.7E-01 c*4.9E-03 c 2.1E-02 c 7.8E-03 c*2.0E-03 c*
2.0E+00 G 5.7E-04 G V 1 0.14 ~Aroclor 1260 11096-82-5 2.4E-01 c 9.9E-01 c 4.9E-03 c 2.1E-02 c 7.8E-03 c 5.5E-03 c
6.0E-04 X V 1 0.14 ~Aroclor 5460 11126-42-4 3.5E+01 n 4.4E+02 n 1.2E+01 n 2.0E+00 n
3.9E+00 W 1.1E-03 W 2.3E-05 W 1.3E-03 W V 1 0.14 ~Heptachlorobiphenyl, 2,3,3',4,4',5,5'- (PCB 189)39635-31-9 1.3E-01 c*5.2E-01 c*2.5E-03 c 1.1E-02 c 4.0E-03 c 2.8E-03 c
3.9E+00 W 1.1E-03 W 2.3E-05 W 1.3E-03 W V 1 0.14 ~Hexachlorobiphenyl, 2,3',4,4',5,5'- (PCB 167)52663-72-6 1.2E-01 c*5.1E-01 c*2.5E-03 c 1.1E-02 c 4.0E-03 c 1.7E-03 c
3.9E+00 W 1.1E-03 W 2.3E-05 W 1.3E-03 W V 1 0.14 ~Hexachlorobiphenyl, 2,3,3',4,4',5'- (PCB 157)69782-90-7 1.2E-01 c*5.0E-01 c*2.5E-03 c 1.1E-02 c 4.0E-03 c 1.7E-03 c
Page 8 of 11
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0
Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) May 2022
SFO
(mg/kg-day)-1
k
e
y
IUR
(ug/m3)-1
k
e
y
RfDo
(mg/kg-day)
k
e
y
RfCi
(mg/m3)
k
e
y
v
o
l mutagen GIABS ABSd
Csat
(mg/kg)Analyte CAS No.
Resident Soil
(mg/kg)key
Industrial Soil
(mg/kg)key
Resident Air
(ug/m3)key
Industrial Air
(ug/m3)key
Tapwater
(ug/L)key
MCL
(ug/L)
Risk-based
SSL
(mg/kg)key
MCL-based
SSL
(mg/kg)
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; D = OW; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; W = TEF applied; E = RPF applied; G = user's guide Section 5; M = mutagen; V = volatile; R = RBA applied ; c = cancer; n = noncancer; * = where: n SL < 100X c SL; ** = where n SL < 10X c SL; SSL values are based on
DAF=1; m = ceiling limit exceeded; s = Csat exceeded.
Toxicity and Chemical-specific Information Contaminant Screening Levels Protection of Groundwater SSLs
3.9E+00 W 1.1E-03 W 2.3E-05 W 1.3E-03 W V 1 0.14 ~Hexachlorobiphenyl, 2,3,3',4,4',5- (PCB 156)38380-08-4 1.2E-01 c*5.0E-01 c*2.5E-03 c 1.1E-02 c 4.0E-03 c 1.7E-03 c
3.9E+03 W 1.1E+00 W 2.3E-08 W 1.3E-06 W V 1 0.14 ~Hexachlorobiphenyl, 3,3',4,4',5,5'- (PCB 169)32774-16-6 1.2E-04 c*5.1E-04 c*2.5E-06 c 1.1E-05 c 4.0E-06 c 1.7E-06 c
3.9E+00 W 1.1E-03 W 2.3E-05 W 1.3E-03 W V 1 0.14 ~Pentachlorobiphenyl, 2',3,4,4',5- (PCB 123)65510-44-3 1.2E-01 c*4.9E-01 c*2.5E-03 c 1.1E-02 c 4.0E-03 c 1.0E-03 c
3.9E+00 W 1.1E-03 W 2.3E-05 W 1.3E-03 W V 1 0.14 ~Pentachlorobiphenyl, 2,3',4,4',5- (PCB 118)31508-00-6 1.2E-01 c*4.9E-01 c*2.5E-03 c 1.1E-02 c 4.0E-03 c 1.0E-03 c
3.9E+00 W 1.1E-03 W 2.3E-05 W 1.3E-03 W V 1 0.14 ~Pentachlorobiphenyl, 2,3,3',4,4'- (PCB 105)32598-14-4 1.2E-01 c*4.9E-01 c*2.5E-03 c 1.1E-02 c 4.0E-03 c 1.0E-03 c
3.9E+00 W 1.1E-03 W 2.3E-05 W 1.3E-03 W V 1 0.14 ~Pentachlorobiphenyl, 2,3,4,4',5- (PCB 114)74472-37-0 1.2E-01 c*5.0E-01 c*2.5E-03 c 1.1E-02 c 4.0E-03 c 1.0E-03 c
1.3E+04 W 3.8E+00 W 7.0E-09 W 4.0E-07 W V 1 0.14 ~Pentachlorobiphenyl, 3,3',4,4',5- (PCB 126)57465-28-8 3.6E-05 c*1.5E-04 c*7.4E-07 c 3.2E-06 c 1.2E-06 c 3.0E-07 c
2.0E+00 I 5.7E-04 I V 1 0.14 ~Polychlorinated Biphenyls (high risk)1336-36-3 2.3E-01 c 9.4E-01 c 4.9E-03 c 2.1E-02 c 5.0E-01
4.0E-01 I 1.0E-04 I V 1 0.14 ~Polychlorinated Biphenyls (low risk)1336-36-3 2.8E-02 c 1.2E-01 c 4.4E-02 c 5.0E-01 6.8E-03 c 7.8E-02
7.0E-02 I 2.0E-05 I V 1 0.14 ~Polychlorinated Biphenyls (lowest risk)1336-36-3 1.4E-01 c 6.1E-01 c 5.0E-01
1.3E+01 W 3.8E-03 W 7.0E-06 W 4.0E-04 W 1 0.14 ~Tetrachlorobiphenyl, 3,3',4,4'- (PCB 77)32598-13-3 3.8E-02 c*1.6E-01 c*7.4E-04 c 3.2E-03 c 6.0E-03 c*9.4E-04 c*
3.9E+01 W 1.1E-02 W 2.3E-06 W 1.3E-04 W V 1 0.14 ~Tetrachlorobiphenyl, 3,4,4',5- (PCB 81)70362-50-4 1.2E-02 c*4.8E-02 c*2.5E-04 c 1.1E-03 c 4.0E-04 c 6.2E-05 c
6.0E-04 I 1 0.1 Polymeric Methylene Diphenyl Diisocyanate (PMDI)9016-87-9 8.5E+05 nm 3.6E+06 nm 6.3E-01 n 2.6E+00 n
Polynuclear Aromatic Hydrocarbons (PAHs)
6.0E-02 I V 1 0.13 ~Acenaphthene 83-32-9 3.6E+03 n 4.5E+04 n 5.3E+02 n 5.5E+00 n
3.0E-01 I V 1 0.13 ~Anthracene 120-12-7 1.8E+04 n 2.3E+05 nm 1.8E+03 n 5.8E+01 n
1.0E-01 E 6.0E-05 E V M 1 0.13 ~Benz[a]anthracene 56-55-3 1.1E+00 c 2.1E+01 c 1.7E-02 c 2.0E-01 c 3.0E-02 c 1.1E-02 c
9.0E-05 X 2.0E-06 X 1 0.1 ~Benzo(e)pyrene 192-97-2 5.7E+00 n 7.3E+01 n 2.1E-03 n 8.8E-03 n 1.8E+00 n 2.2E+00 n
1.2E+00 C 1.1E-04 C 1 0.13 ~Benzo(j)fluoranthene 205-82-3 4.2E-01 c 1.8E+00 c 2.6E-02 c 1.1E-01 c 6.5E-02 c 7.8E-02 c
1.0E+00 I 6.0E-04 I 3.0E-04 I 2.0E-06 I M 1 0.13 ~Benzo[a]pyrene 50-32-8 1.1E-01 c 2.1E+00 c 1.7E-03 c**8.8E-03 n 2.5E-02 c 2.0E-01 2.9E-02 c 2.4E-01
1.0E-01 E 6.0E-05 E M 1 0.13 ~Benzo[b]fluoranthene 205-99-2 1.1E+00 c 2.1E+01 c 1.7E-02 c 2.0E-01 c 2.5E-01 c 3.0E-01 c
1.0E-02 E 6.0E-06 E M 1 0.13 ~Benzo[k]fluoranthene 207-08-9 1.1E+01 c 2.1E+02 c 1.7E-01 c 2.0E+00 c 2.5E+00 c 2.9E+00 c
8.0E-02 I V 1 0.13 ~Chloronaphthalene, Beta-91-58-7 4.8E+03 n 6.0E+04 n 7.5E+02 n 3.9E+00 n
1.0E-03 E 6.0E-07 E M 1 0.13 ~Chrysene 218-01-9 1.1E+02 c 2.1E+03 c 1.7E+00 c 2.0E+01 c 2.5E+01 c 9.0E+00 c
1.0E+00 E 6.0E-04 E M 1 0.13 ~Dibenz[a,h]anthracene 53-70-3 1.1E-01 c 2.1E+00 c 1.7E-03 c 2.0E-02 c 2.5E-02 c 9.6E-02 c
1.2E+01 C 1.1E-03 C 1 0.13 ~Dibenzo(a,e)pyrene 192-65-4 4.2E-02 c 1.8E-01 c 2.6E-03 c 1.1E-02 c 6.5E-03 c 8.4E-02 c
2.5E+02 C 7.1E-02 C M 1 0.13 ~Dimethylbenz(a)anthracene, 7,12-57-97-6 4.6E-04 c 8.4E-03 c 1.4E-05 c 1.7E-04 c 1.0E-04 c 9.9E-05 c
4.0E-02 I 1 0.13 ~Fluoranthene 206-44-0 2.4E+03 n 3.0E+04 n 8.0E+02 n 8.9E+01 n
4.0E-02 I V 1 0.13 ~Fluorene 86-73-7 2.4E+03 n 3.0E+04 n 2.9E+02 n 5.4E+00 n
1.0E-01 E 6.0E-05 E M 1 0.13 ~Indeno[1,2,3-cd]pyrene 193-39-5 1.1E+00 c 2.1E+01 c 1.7E-02 c 2.0E-01 c 2.5E-01 c 9.8E-01 c
2.9E-02 P 7.0E-02 A V 1 0.13 3.9E+02 ~Methylnaphthalene, 1-90-12-0 1.8E+01 c 7.3E+01 c 1.1E+00 c 6.0E-03 c
4.0E-03 I V 1 0.13 ~Methylnaphthalene, 2-91-57-6 2.4E+02 n 3.0E+03 n 3.6E+01 n 1.9E-01 n
1.2E-01 C 3.4E-05 C 2.0E-02 I 3.0E-03 I V 1 0.13 ~Naphthalene 91-20-3 2.0E+00 c*8.6E+00 c*8.3E-02 c*3.6E-01 c*1.2E-01 c*3.8E-04 c*
1.2E+00 C 1.1E-04 C 1 0.13 ~Nitropyrene, 4-57835-92-4 4.2E-01 c 1.8E+00 c 2.6E-02 c 1.1E-01 c 1.9E-02 c 3.3E-03 c
3.0E-02 I V 1 0.13 ~Pyrene 129-00-0 1.8E+03 n 2.3E+04 n 1.2E+02 n 1.3E+01 n
1.5E-01 I 9.0E-03 I 1 0.1 Prochloraz 67747-09-5 3.6E+00 c 1.5E+01 c 3.8E-01 c 1.9E-03 c
6.0E-03 H V 1 Profluralin 26399-36-0 4.7E+02 n 7.0E+03 n 2.6E+01 n 1.6E+00 n
1.5E-02 I 1 0.1 Prometon 1610-18-0 9.5E+02 n 1.2E+04 n 2.5E+02 n 1.2E-01 n
4.0E-02 O 1 0.1 Prometryn 7287-19-6 2.5E+03 n 3.3E+04 n 6.0E+02 n 9.0E-01 n
7.5E-02 I 1 0.1 Pronamide 23950-58-5 4.7E+03 n 6.2E+04 n 1.2E+03 n 1.2E+00 n
1.3E-02 I 1 0.1 Propachlor 1918-16-7 8.2E+02 n 1.1E+04 n 2.5E+02 n 1.5E-01 n
5.0E-03 I 1 0.1 Propanil 709-98-8 3.2E+02 n 4.1E+03 n 8.2E+01 n 4.5E-02 n
1.9E-01 O 4.0E-02 O 1 0.1 Propargite 2312-35-8 2.8E+00 c 1.2E+01 c 1.6E-01 c 1.1E-02 c
2.0E-03 I V 1 1.1E+05 Propargyl Alcohol 107-19-7 1.6E+02 n 2.3E+03 n 4.0E+01 n 8.1E-03 n
2.0E-02 I 1 0.1 Propazine 139-40-2 1.3E+03 n 1.6E+04 n 3.4E+02 n 3.0E-01 n
2.0E-02 I 1 0.1 Propham 122-42-9 1.3E+03 n 1.6E+04 n 3.5E+02 n 2.2E-01 n
1.0E-01 O 1 0.1 Propiconazole 60207-90-1 6.3E+03 n 8.2E+04 n 1.6E+03 n 5.3E+00 n
8.0E-03 I V 1 3.3E+04 Propionaldehyde 123-38-6 7.5E+01 n 3.1E+02 n 8.3E+00 n 3.5E+01 n 1.7E+01 n 3.4E-03 n
1.0E-01 X 1.0E+00 X V 1 2.6E+02 Propyl benzene 103-65-1 3.8E+03 ns 2.4E+04 ns 1.0E+03 n 4.4E+03 n 6.6E+02 n 1.2E+00 n
3.0E+00 C V 1 3.5E+02 Propylene 115-07-1 2.2E+03 ns 9.3E+03 ns 3.1E+03 n 1.3E+04 n 6.3E+03 n 6.0E+00 n
2.0E+01 P 1 0.1 Propylene Glycol 57-55-6 1.3E+06 nm 1.6E+07 nm 4.0E+05 n 8.1E+01 n
2.7E-04 A 1 0.1 Propylene Glycol Dinitrate 6423-43-4 3.9E+05 nm 1.6E+06 nm 2.8E-01 n 1.2E+00 n
7.0E-01 H 2.0E+00 I V 1 1.1E+05 Propylene Glycol Monomethyl Ether 107-98-2 4.1E+04 n 3.7E+05 nms 2.1E+03 n 8.8E+03 n 3.2E+03 n 6.5E-01 n
2.4E-01 I 3.7E-06 I 3.0E-02 I V 1 7.8E+04 Propylene Oxide 75-56-9 2.1E+00 c 9.7E+00 c 7.6E-01 c*3.3E+00 c*2.7E-01 c 5.6E-05 c
1.0E-03 I V 1 5.3E+05 Pyridine 110-86-1 7.8E+01 n 1.2E+03 n 2.0E+01 n 6.8E-03 n
5.0E-04 I 1 0.1 Quinalphos 13593-03-8 3.2E+01 n 4.1E+02 n 5.1E+00 n 4.3E-02 n
3.0E+00 I 1 0.1 Quinoline 91-22-5 1.8E-01 c 7.7E-01 c 2.4E-02 c 7.8E-05 c
9.0E-03 I 1 0.1 Quizalofop-ethyl 76578-14-8 5.7E+02 n 7.4E+03 n 1.2E+02 n 1.9E+00 n
3.0E+04 A 1 Refractory Ceramic Fibers (units in fibers)E715557 3.1E+04 G 1.3E+05 G
3.0E-02 I 1 0.1 Resmethrin 10453-86-8 1.9E+03 n 2.5E+04 n 6.7E+01 n 4.2E+01 n
5.0E-02 H V 1 Ronnel 299-84-3 3.9E+03 n 5.8E+04 n 4.1E+02 n 3.7E+00 n
4.0E-03 I 1 0.1 Rotenone 83-79-4 2.5E+02 n 3.3E+03 n 6.1E+01 n 3.2E+01 n
2.2E-01 C 6.3E-05 C M 1 0.1 Safrole 94-59-7 5.5E-01 c 1.0E+01 c 1.6E-02 c 1.9E-01 c 9.6E-02 c 5.9E-05 c
5.0E-03 I 1 Selenious Acid 7783-00-8 3.9E+02 n 5.8E+03 n 1.0E+02 n
5.0E-03 I 2.0E-02 C 1 Selenium 7782-49-2 3.9E+02 n 5.8E+03 n 2.1E+01 n 8.8E+01 n 1.0E+02 n 5.0E+01 5.2E-01 n 2.6E-01
5.0E-03 C 2.0E-02 C 1 Selenium Sulfide 7446-34-6 3.9E+02 n 5.8E+03 n 2.1E+01 n 8.8E+01 n 1.0E+02 n
1.4E-01 O 1 0.1 Sethoxydim 74051-80-2 8.8E+03 n 1.1E+05 nm 1.6E+03 n 1.4E+01 n
3.0E-03 C 1 Silica (crystalline, respirable)7631-86-9 4.3E+06 nm 1.8E+07 nm 3.1E+00 n 1.3E+01 n
5.0E-03 I 0.04 Silver 7440-22-4 3.9E+02 n 5.8E+03 n 9.4E+01 n 8.0E-01 n
1.2E-01 H 5.0E-03 I 1 0.1 Simazine 122-34-9 4.5E+00 c*1.9E+01 c 6.1E-01 c 4.0E+00 3.0E-04 c 2.0E-03
1.3E-02 I 1 0.1 Sodium Acifluorfen 62476-59-9 8.2E+02 n 1.1E+04 n 2.6E+02 n 2.1E+00 n
4.0E-03 I 1 Sodium Azide 26628-22-8 3.1E+02 n 4.7E+03 n 8.0E+01 n
2.7E-01 H 3.0E-02 I 1 0.1 Sodium Diethyldithiocarbamate 148-18-5 2.0E+00 c 8.5E+00 c 2.9E-01 c 1.8E-04 c
5.0E-02 A 1.3E-02 C 1 Sodium Fluoride 7681-49-4 3.9E+03 n 5.8E+04 n 1.4E+01 n 5.7E+01 n 1.0E+03 n 4.0E+03 1.5E+02 n 6.0E+02
2.0E-05 I 1 0.1 Sodium Fluoroacetate 62-74-8 1.3E+00 n 1.6E+01 n 4.0E-01 n 8.1E-05 n
1.0E-03 H 1 Sodium Metavanadate 13718-26-8 7.8E+01 n 1.2E+03 n 2.0E+01 n
8.0E-04 P 1 Sodium Tungstate 13472-45-2 6.3E+01 n 9.3E+02 n 1.6E+01 n
8.0E-04 P 1 Sodium Tungstate Dihydrate 10213-10-2 6.3E+01 n 9.3E+02 n 1.6E+01 n
Page 9 of 11
TR
=
1
E
-
0
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TH
Q
=
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.
0
Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) May 2022
SFO
(mg/kg-day)-1
k
e
y
IUR
(ug/m3)-1
k
e
y
RfDo
(mg/kg-day)
k
e
y
RfCi
(mg/m3)
k
e
y
v
o
l mutagen GIABS ABSd
Csat
(mg/kg)Analyte CAS No.
Resident Soil
(mg/kg)key
Industrial Soil
(mg/kg)key
Resident Air
(ug/m3)key
Industrial Air
(ug/m3)key
Tapwater
(ug/L)key
MCL
(ug/L)
Risk-based
SSL
(mg/kg)key
MCL-based
SSL
(mg/kg)
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; D = OW; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; W = TEF applied; E = RPF applied; G = user's guide Section 5; M = mutagen; V = volatile; R = RBA applied ; c = cancer; n = noncancer; * = where: n SL < 100X c SL; ** = where n SL < 10X c SL; SSL values are based on
DAF=1; m = ceiling limit exceeded; s = Csat exceeded.
Toxicity and Chemical-specific Information Contaminant Screening Levels Protection of Groundwater SSLs
2.4E-02 H 3.0E-02 I 1 0.1 Stirofos (Tetrachlorovinphos)961-11-5 2.3E+01 c*9.6E+01 c 2.8E+00 c 8.2E-03 c
6.0E-01 I 1 Strontium, Stable 7440-24-6 4.7E+04 n 7.0E+05 nm 1.2E+04 n 4.2E+02 n
3.0E-04 I 1 0.1 Strychnine 57-24-9 1.9E+01 n 2.5E+02 n 5.9E+00 n 6.5E-02 n
2.0E-01 I 1.0E+00 I V 1 8.7E+02 Styrene 100-42-5 6.0E+03 ns 3.5E+04 ns 1.0E+03 n 4.4E+03 n 1.2E+03 n 1.0E+02 1.3E+00 n 1.1E-01
3.0E-03 P 1 0.1 Styrene-Acrylonitrile (SAN) Trimer (THNA isomer)57964-39-3 1.9E+02 n 2.5E+03 n 4.8E+01 n
3.0E-03 P 1 0.1 Styrene-Acrylonitrile (SAN) Trimer (THNP isomer)57964-40-6 1.9E+02 n 2.5E+03 n 4.8E+01 n
1.0E-03 P 2.0E-03 X 1 0.1 Sulfolane 126-33-0 6.3E+01 n 8.2E+02 n 2.1E+00 n 8.8E+00 n 2.0E+01 n 4.4E-03 n
8.0E-04 P 1 0.1 Sulfonylbis(4-chlorobenzene), 1,1'-80-07-9 5.1E+01 n 6.6E+02 n 1.1E+01 n 6.5E-02 n
1.0E-03 C V 1 Sulfur Trioxide 7446-11-9 1.4E+06 nm 6.0E+06 nm 1.0E+00 n 4.4E+00 n 2.1E+00 n
1.0E-03 C 1 Sulfuric Acid 7664-93-9 1.4E+06 nm 6.0E+06 nm 1.0E+00 n 4.4E+00 n
2.5E-02 I 7.1E-06 I 5.0E-02 H 1 0.1 Sulfurous acid, 2-chloroethyl 2-[4-(1,1-dimethylethyl)phenoxy]-1-methylethyl 140-57-8 2.2E+01 c 9.2E+01 c 4.0E-01 c 1.7E+00 c 1.3E+00 c 1.5E-02 c
3.0E-02 H 1 0.1 TCMTB 21564-17-0 1.9E+03 n 2.5E+04 n 4.8E+02 n 3.3E+00 n
7.0E-02 I 1 0.1 Tebuthiuron 34014-18-1 4.4E+03 n 5.7E+04 n 1.4E+03 n 3.9E-01 n
2.0E-02 H 1 0.1 Temephos 3383-96-8 1.3E+03 n 1.6E+04 n 4.0E+02 n 7.6E+01 n
1.3E-02 I 1 0.1 Terbacil 5902-51-2 8.2E+02 n 1.1E+04 n 2.5E+02 n 7.5E-02 n
2.5E-05 H V 1 3.1E+01 Terbufos 13071-79-9 2.0E+00 n 2.9E+01 n 2.4E-01 n 5.2E-04 n
1.0E-03 I 1 0.1 Terbutryn 886-50-0 6.3E+01 n 8.2E+02 n 1.3E+01 n 1.9E-02 n
5.0E-03 C 1.3E-06 C V 1 Tert-Butyl Acetate 540-88-5 8.1E+00 c 3.6E+01 c 2.2E+00 c 9.4E+00 c 3.3E+00 c 7.6E-04 c
1.0E-04 I 1 0.1 Tetrabromodiphenyl ether, 2,2',4,4'- (BDE-47)5436-43-1 6.3E+00 n 8.2E+01 n 2.0E+00 n 5.3E-02 n
3.0E-05 P V 1 Tetrachlorobenzene, 1,2,4,5-95-94-3 2.3E+00 n 3.5E+01 n 1.7E-01 n 7.9E-04 n
2.6E-02 I 7.4E-06 I 3.0E-02 I V 1 6.8E+02 Tetrachloroethane, 1,1,1,2-630-20-6 2.0E+00 c 8.8E+00 c 3.8E-01 c 1.7E+00 c 5.7E-01 c 2.2E-04 c
2.0E-01 I 5.8E-05 C 2.0E-02 I V 1 1.9E+03 Tetrachloroethane, 1,1,2,2-79-34-5 6.0E-01 c 2.7E+00 c 4.8E-02 c 2.1E-01 c 7.6E-02 c 3.0E-05 c
2.1E-03 I 2.6E-07 I 6.0E-03 I 4.0E-02 I V 1 1.7E+02 Tetrachloroethylene 127-18-4 2.4E+01 c**1.0E+02 c**1.1E+01 c**4.7E+01 c**1.1E+01 c**5.0E+00 5.1E-03 c**2.3E-03
3.0E-02 I 1 0.1 Tetrachlorophenol, 2,3,4,6-58-90-2 1.9E+03 n 2.5E+04 n 2.4E+02 n 1.8E-01 n
1.6E+01 X 6.0E-05 X V 1 Tetrachlorotoluene, p- alpha, alpha, alpha-5216-25-1 4.3E-02 c 2.0E-01 c 1.7E-03 c 5.7E-06 c
5.0E-04 I 1 0.1 Tetraethyl Dithiopyrophosphate 3689-24-5 3.2E+01 n 4.1E+02 n 7.1E+00 n 5.2E-03 n
8.0E+01 I V 1 2.1E+03 Tetrafluoroethane, 1,1,1,2-811-97-2 1.0E+05 nms 4.3E+05 nms 8.3E+04 n 3.5E+05 n 1.7E+05 n 9.3E+01 n
1.0E-04 X 1 0.1 Tetramethylphosphoramide, -N,N,N',N" (TMPA)16853-36-4 6.3E+00 n 8.2E+01 n 2.0E+00 n
2.0E-03 P 1 0.00065 Tetryl (Trinitrophenylmethylnitramine)479-45-8 1.6E+02 n 2.3E+03 n 3.9E+01 n 3.7E-01 n
2.0E-05 G 1 Thallic Oxide 1314-32-5 1.6E+00 n 2.3E+01 n 4.0E-01 n
1.0E-05 X 1 Thallium (I) Nitrate 10102-45-1 7.8E-01 n 1.2E+01 n 2.0E-01 n
1.0E-05 X 1 Thallium (Soluble Salts)7440-28-0 7.8E-01 n 1.2E+01 n 2.0E-01 n 2.0E+00 1.4E-02 n 1.4E-01
1.0E-05 X V 1 Thallium Acetate 563-68-8 7.8E-01 n 1.2E+01 n 2.0E-01 n 4.1E-05 n
2.0E-05 X 1 0.1 Thallium Carbonate 6533-73-9 1.3E+00 n 1.6E+01 n 4.0E-01 n 8.3E-05 n
1.0E-05 X 1 Thallium Chloride 7791-12-0 7.8E-01 n 1.2E+01 n 2.0E-01 n
1.0E-05 G 1 Thallium Selenite 12039-52-0 7.8E-01 n 1.2E+01 n 2.0E-01 n
2.0E-05 X 1 Thallium Sulfate 7446-18-6 1.6E+00 n 2.3E+01 n 4.0E-01 n
4.3E-02 O 1 0.1 Thifensulfuron-methyl 79277-27-3 2.7E+03 n 3.5E+04 n 8.6E+02 n 2.6E-01 n
1.0E-02 I 1 0.1 Thiobencarb 28249-77-6 6.3E+02 n 8.2E+03 n 1.6E+02 n 5.5E-01 n
7.0E-02 X 1 0.0075 Thiodiglycol 111-48-8 5.4E+03 n 7.9E+04 n 1.4E+03 n 2.8E-01 n
3.0E-04 H 1 0.1 Thiofanox 39196-18-4 1.9E+01 n 2.5E+02 n 5.3E+00 n 1.8E-03 n
1.2E-02 O 1.6E-01 O 1 0.1 Thiophanate, Methyl 23564-05-8 4.7E+01 c 2.0E+02 c 6.7E+00 c 5.7E-03 c
1.5E-02 O 1 0.1 Thiram 137-26-8 9.5E+02 n 1.2E+04 n 2.9E+02 n 4.2E-01 n
6.0E-01 H 1 Tin 7440-31-5 4.7E+04 n 7.0E+05 nm 1.2E+04 n 3.0E+03 n
1.0E-04 A V 1 Titanium Tetrachloride 7550-45-0 1.4E+05 nm 6.0E+05 nm 1.0E-01 n 4.4E-01 n 2.1E-01 n
8.0E-02 I 5.0E+00 I V 1 8.2E+02 Toluene 108-88-3 4.9E+03 ns 4.7E+04 ns 5.2E+03 n 2.2E+04 n 1.1E+03 n 1.0E+03 7.6E-01 n 6.9E-01
3.9E-02 C 1.1E-05 C 8.0E-06 C V 1 Toluene-2,4-diisocyanate 584-84-9 6.4E+00 n 2.7E+01 n 8.3E-03 n 3.5E-02 n 1.7E-02 n 2.5E-04 n
1.8E-01 X 2.0E-04 X 1 0.1 Toluene-2,5-diamine 95-70-5 3.0E+00 c**1.3E+01 c*4.3E-01 c**1.3E-04 c**
3.9E-02 C 1.1E-05 C 8.0E-06 C V 1 1.7E+03 Toluene-2,6-diisocyanate 91-08-7 5.3E+00 n 2.2E+01 n 8.3E-03 n 3.5E-02 n 1.7E-02 n 2.6E-04 n
1.0E-04 X 1 0.1 Toluenediamine, 2,3-2687-25-4 6.3E+00 n 8.2E+01 n 2.0E+00 n 6.2E-04 n
1.0E-04 X 1 0.1 Toluenediamine, 3,4-496-72-0 6.3E+00 n 8.2E+01 n 2.0E+00 n 6.2E-04 n
5.0E-03 P 1 0.1 Toluic Acid, p-99-94-5 3.2E+02 n 4.1E+03 n 9.0E+01 n 2.3E-02 n
1.6E-02 P 5.1E-05 C 1 0.1 Toluidine, o- (Methylaniline, 2-)95-53-4 3.4E+01 c 1.4E+02 c 5.5E-02 c 2.4E-01 c 4.7E+00 c 2.0E-03 c
3.0E-02 P 4.0E-03 X 1 0.1 Toluidine, p-106-49-0 1.8E+01 c*7.7E+01 c*2.5E+00 c*1.1E-03 c*
3.0E+00 P V 1 3.4E-01 Total Petroleum Hydrocarbons (Aliphatic High)E1790670 2.3E+05 nms 3.5E+06 nms 6.0E+04 n 2.4E+03 n
6.0E-01 P V 1 1.4E+02 Total Petroleum Hydrocarbons (Aliphatic Low)E1790666 5.2E+02 ns 2.2E+03 ns 6.3E+02 n 2.6E+03 n 1.3E+03 n 8.8E+00 n
1.0E-02 X 1.0E-01 P V 1 6.9E+00 Total Petroleum Hydrocarbons (Aliphatic Medium)E1790668 9.6E+01 ns 4.4E+02 ns 1.0E+02 n 4.4E+02 n 1.0E+02 n 1.5E+00 n
4.0E-02 P 1 0.13 Total Petroleum Hydrocarbons (Aromatic High)E1790676 2.4E+03 n 3.0E+04 n 8.0E+02 n 8.9E+01 n
4.0E-03 P 3.0E-02 P V 1 1.8E+03 Total Petroleum Hydrocarbons (Aromatic Low)E1790672 8.2E+01 n 4.2E+02 n 3.1E+01 n 1.3E+02 n 3.3E+01 n 1.7E-02 n
4.0E-03 P 3.0E-03 P V 1 0.13 Total Petroleum Hydrocarbons (Aromatic Medium)E1790674 9.7E+01 n 5.6E+02 n 3.1E+00 n 1.3E+01 n 5.5E+00 n 2.3E-02 n
1.1E+00 I 3.2E-04 I 9.0E-05 P 1 0.1 Toxaphene 8001-35-2 4.9E-01 c*2.1E+00 c*8.8E-03 c 3.8E-02 c 7.1E-02 c*3.0E+00 1.1E-02 c*4.6E-01
3.0E-05 X 1 0.1 Toxaphene, Weathered E1841606 1.9E+00 n 2.5E+01 n 6.0E-01 n 9.3E-02 n
7.5E-03 I 1 0.1 Tralomethrin 66841-25-6 4.7E+02 n 6.2E+03 n 1.5E+02 n 5.8E+01 n
3.0E-04 A V 1 Tri-n-butyltin 688-73-3 2.3E+01 n 3.5E+02 n 3.7E+00 n 8.2E-02 n
8.0E+01 X 1 0.1 Triacetin 102-76-1 5.1E+06 nm 6.6E+07 nm 1.6E+06 n 4.5E+02 n
3.4E-02 O 1 0.1 Triadimefon 43121-43-3 2.1E+03 n 2.8E+04 n 6.3E+02 n 5.0E-01 n
7.2E-02 O 2.5E-02 O V 1 Triallate 2303-17-5 9.7E+00 c 4.6E+01 c 4.7E-01 c 1.0E-03 c
1.0E-02 I 1 0.1 Triasulfuron 82097-50-5 6.3E+02 n 8.2E+03 n 2.0E+02 n 2.1E-01 n
8.0E-03 I 1 0.1 Tribenuron-methyl 101200-48-0 5.1E+02 n 6.6E+03 n 1.6E+02 n 6.1E-02 n
5.0E-03 I V 1 Tribromobenzene, 1,2,4-615-54-3 3.9E+02 n 5.8E+03 n 4.5E+01 n 6.4E-02 n
9.0E-03 X 1 0.1 Tribromophenol, 2,4,6-118-79-6 5.7E+02 n 7.4E+03 n 1.2E+02 n 2.2E-01 n
2.0E-04 O 1 0.1 Tribufos 78-48-8 1.3E+01 n 1.6E+02 n 5.7E-01 n 2.8E-03 n
9.0E-03 P 1.0E-02 P 1 0.1 Tributyl Phosphate 126-73-8 6.0E+01 c*2.6E+02 c*5.2E+00 c*2.5E-02 c*
3.0E-04 P 1 0.1 Tributyltin Compounds E1790679 1.9E+01 n 2.5E+02 n 6.0E+00 n
3.0E-04 I 1 0.1 Tributyltin Oxide 56-35-9 1.9E+01 n 2.5E+02 n 5.7E+00 n 2.9E+02 n
1 0.1 Trichloramine 10025-85-1 4.0E+03(G)
3.0E+01 I 5.0E+00 P V 1 9.1E+02 Trichloro-1,2,2-trifluoroethane, 1,1,2-76-13-1 6.7E+03 ns 2.8E+04 ns 5.2E+03 n 2.2E+04 n 1.0E+04 n 2.6E+01 n
7.0E-02 I 2.0E-02 I 1 0.1 Trichloroacetic Acid 76-03-9 7.8E+00 c 3.3E+01 c 1.1E+00 c 6.0E+01(G)2.2E-04 c 1.2E-02
Page 10 of 11
TR
=
1
E
-
0
6

TH
Q
=
1
.
0
Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) May 2022
SFO
(mg/kg-day)-1
k
e
y
IUR
(ug/m3)-1
k
e
y
RfDo
(mg/kg-day)
k
e
y
RfCi
(mg/m3)
k
e
y
v
o
l mutagen GIABS ABSd
Csat
(mg/kg)Analyte CAS No.
Resident Soil
(mg/kg)key
Industrial Soil
(mg/kg)key
Resident Air
(ug/m3)key
Industrial Air
(ug/m3)key
Tapwater
(ug/L)key
MCL
(ug/L)
Risk-based
SSL
(mg/kg)key
MCL-based
SSL
(mg/kg)
Key: I = IRIS; P = PPRTV; O = OPP; A = ATSDR; D = OW; C = Cal EPA; X = PPRTV Screening Level; H = HEAST; W = TEF applied; E = RPF applied; G = user's guide Section 5; M = mutagen; V = volatile; R = RBA applied ; c = cancer; n = noncancer; * = where: n SL < 100X c SL; ** = where n SL < 10X c SL; SSL values are based on
DAF=1; m = ceiling limit exceeded; s = Csat exceeded.
Toxicity and Chemical-specific Information Contaminant Screening Levels Protection of Groundwater SSLs
2.9E-02 H 1 0.1 Trichloroaniline HCl, 2,4,6-33663-50-2 1.9E+01 c 7.9E+01 c 2.7E+00 c 7.4E-03 c
7.0E-03 X 3.0E-05 X 1 0.1 Trichloroaniline, 2,4,6-634-93-5 1.9E+00 n 2.5E+01 n 4.0E-01 n 3.6E-03 n
8.0E-04 X V 1 Trichlorobenzene, 1,2,3-87-61-6 6.3E+01 n 9.3E+02 n 7.0E+00 n 2.1E-02 n
2.9E-02 P 1.0E-02 I 2.0E-03 P V 1 4.0E+02 Trichlorobenzene, 1,2,4-120-82-1 2.4E+01 c**1.1E+02 c**2.1E+00 n 8.8E+00 n 1.2E+00 c**7.0E+01 3.4E-03 c**2.0E-01
2.0E+00 I 5.0E+00 I V 1 6.4E+02 Trichloroethane, 1,1,1-71-55-6 8.1E+03 ns 3.6E+04 ns 5.2E+03 n 2.2E+04 n 8.0E+03 n 2.0E+02 2.8E+00 n 7.0E-02
5.7E-02 I 1.6E-05 I 4.0E-03 I 2.0E-04 X V 1 2.2E+03 Trichloroethane, 1,1,2-79-00-5 1.1E+00 c**5.0E+00 c**1.8E-01 c**7.7E-01 c**2.8E-01 c**5.0E+00 8.9E-05 c**1.6E-03
4.6E-02 I 4.1E-06 I 5.0E-04 I 2.0E-03 I V M 1 6.9E+02 Trichloroethylene 79-01-6 9.4E-01 c**6.0E+00 c**4.8E-01 c**3.0E+00 c**4.9E-01 c**5.0E+00 1.8E-04 c**1.8E-03
3.0E-01 I V 1 1.2E+03 Trichlorofluoromethane 75-69-4 2.3E+04 ns 3.5E+05 nms 5.2E+03 n 3.3E+00 n
1.0E-01 I 1 0.1 Trichlorophenol, 2,4,5-95-95-4 6.3E+03 n 8.2E+04 n 1.2E+03 n 4.0E+00 n
1.1E-02 I 3.1E-06 I 1.0E-03 P 1 0.1 Trichlorophenol, 2,4,6-88-06-2 4.9E+01 c**2.1E+02 c**9.1E-01 c 4.0E+00 c 4.1E+00 c**4.0E-03 c**
1.0E-02 I 1 0.1 Trichlorophenoxyacetic Acid, 2,4,5-93-76-5 6.3E+02 n 8.2E+03 n 1.6E+02 n 6.8E-02 n
8.0E-03 I 1 0.1 Trichlorophenoxypropionic acid, -2,4,5 93-72-1 5.1E+02 n 6.6E+03 n 1.1E+02 n 5.0E+01 6.1E-02 n 2.8E-02
5.0E-03 I V 1 1.3E+03 Trichloropropane, 1,1,2-598-77-6 3.9E+02 n 5.8E+03 ns 8.8E+01 n 3.5E-02 n
3.0E+01 I 4.0E-03 I 3.0E-04 I V M 1 1.4E+03 Trichloropropane, 1,2,3-96-18-4 5.1E-03 c 1.1E-01 c 3.1E-01 n 1.3E+00 n 7.5E-04 c 3.2E-07 c
3.0E-03 X 3.0E-04 P V 1 3.1E+02 Trichloropropene, 1,2,3-96-19-5 7.3E-01 n 3.1E+00 n 3.1E-01 n 1.3E+00 n 6.2E-01 n 3.1E-04 n
2.0E-02 A 1 0.1 Tricresyl Phosphate (TCP)1330-78-5 1.3E+03 n 1.6E+04 n 1.6E+02 n 1.5E+01 n
3.0E-03 I 1 0.1 Tridiphane 58138-08-2 1.9E+02 n 2.5E+03 n 1.8E+01 n 1.3E-01 n
7.0E-03 I V 1 2.8E+04 Triethylamine 121-44-8 1.2E+02 n 4.8E+02 n 7.3E+00 n 3.1E+01 n 1.5E+01 n 4.4E-03 n
2.0E+00 P 1 0.1 Triethylene Glycol 112-27-6 1.3E+05 nm 1.6E+06 nm 4.0E+04 n 8.8E+00 n
2.0E+01 P V 1 4.8E+03 Trifluoroethane, 1,1,1-420-46-2 1.5E+04 ns 6.2E+04 ns 2.1E+04 n 8.8E+04 n 4.2E+04 n 1.3E+02 n
7.7E-03 I 7.5E-03 I V 1 Trifluralin 1582-09-8 9.0E+01 c**4.2E+02 c*2.6E+00 c*8.4E-02 c*
2.0E-02 P 1.0E-02 P 1 0.1 Trimethyl Phosphate 512-56-1 2.7E+01 c*1.1E+02 c* 3.9E+00 c*8.6E-04 c*
1.0E-02 I 6.0E-02 I V 1 2.9E+02 Trimethylbenzene, 1,2,3-526-73-8 3.4E+02 ns 2.0E+03 ns 6.3E+01 n 2.6E+02 n 5.5E+01 n 8.1E-02 n
1.0E-02 I 6.0E-02 I V 1 2.2E+02 Trimethylbenzene, 1,2,4-95-63-6 3.0E+02 ns 1.8E+03 ns 6.3E+01 n 2.6E+02 n 5.6E+01 n 8.1E-02 n
1.0E-02 I 6.0E-02 I V 1 1.8E+02 Trimethylbenzene, 1,3,5-108-67-8 2.7E+02 ns 1.5E+03 ns 6.3E+01 n 2.6E+02 n 6.0E+01 n 8.7E-02 n
1.0E-02 X V 1 3.0E+01 Trimethylpentene, 2,4,4-25167-70-8 7.8E+02 ns 1.2E+04 ns 3.8E+01 n 1.3E-01 n
3.0E-02 I 1 0.019 Trinitrobenzene, 1,3,5-99-35-4 2.2E+03 n 3.2E+04 n 5.9E+02 n 2.1E+00 n
3.0E-02 I 5.0E-04 I 1 0.032 Trinitrotoluene, 2,4,6-118-96-7 2.1E+01 c**9.6E+01 c**2.5E+00 c**1.5E-02 c**
2.0E-02 P 1 0.1 Triphenylphosphine Oxide 791-28-6 1.3E+03 n 1.6E+04 n 3.6E+02 n 1.5E+00 n
2.0E-02 A 1 0.1 Tris(1,3-Dichloro-2-propyl) Phosphate 13674-87-8 1.3E+03 n 1.6E+04 n 3.6E+02 n 8.0E+00 n
1.0E-02 X 1 0.1 Tris(1-chloro-2-propyl)phosphate 13674-84-5 6.3E+02 n 8.2E+03 n 1.9E+02 n 6.5E-01 n
2.3E+00 C 6.6E-04 C V 1 4.7E+02 Tris(2,3-dibromopropyl)phosphate 126-72-7 2.8E-01 c 1.3E+00 c 4.3E-03 c 1.9E-02 c 6.8E-03 c 1.3E-04 c
2.0E-02 P 7.0E-03 P 1 0.1 Tris(2-chloroethyl)phosphate 115-96-8 2.7E+01 c*1.1E+02 c*3.8E+00 c*3.8E-03 c*
3.2E-03 P 1.0E-01 P 1 0.1 Tris(2-ethylhexyl)phosphate 78-42-2 1.7E+02 c*7.2E+02 c 2.4E+01 c*1.2E+02 c*
8.0E-04 P 1 Tungsten 7440-33-7 6.3E+01 n 9.3E+02 n 1.6E+01 n 2.4E+00 n
2.0E-04 A 4.0E-05 A 1 Uranium 7440-61-1 1.6E+01 n 2.3E+02 n 4.2E-02 n 1.8E-01 n 4.0E+00 n 3.0E+01 1.8E+00 n 1.4E+01
1.0E+00 C 2.9E-04 C M 1 0.1 Urethane 51-79-6 1.2E-01 c 2.3E+00 c 3.5E-03 c 4.2E-02 c 2.5E-02 c 5.6E-06 c
8.3E-03 P 9.0E-03 I 7.0E-06 P 0.026 Vanadium Pentoxide 1314-62-1 4.6E+02 c**2.0E+03 c**3.4E-04 c*1.5E-03 c*1.5E+02 n
5.0E-03 G 1.0E-04 A 0.026 Vanadium and Compounds 7440-62-2 3.9E+02 n 5.8E+03 n 1.0E-01 n 4.4E-01 n 8.6E+01 n 8.6E+01 n
1.0E-03 I V 1 Vernolate 1929-77-7 7.8E+01 n 1.2E+03 n 1.1E+01 n 8.9E-03 n
1.2E-03 O 1 0.1 Vinclozolin 50471-44-8 7.6E+01 n 9.8E+02 n 2.1E+01 n 1.6E-02 n
1.0E+00 H 2.0E-01 I V 1 2.8E+03 Vinyl Acetate 108-05-4 9.1E+02 n 3.8E+03 ns 2.1E+02 n 8.8E+02 n 4.1E+02 n 8.7E-02 n
1.5E-05 P 3.0E-03 I V 1 2.5E+03 Vinyl Bromide 593-60-2 2.6E-01 c*1.1E+00 c*1.9E-01 c*8.2E-01 c*3.7E-01 c*1.1E-04 c*
7.2E-01 I 4.4E-06 I 3.0E-03 I 8.0E-02 A V M 1 3.9E+03 Vinyl Chloride 75-01-4 5.9E-02 c 1.7E+00 c 1.7E-01 c 2.8E+00 c 1.9E-02 c 2.0E+00 6.5E-06 c 6.9E-04
3.0E-04 I 1 0.1 Warfarin 81-81-2 1.9E+01 n 2.5E+02 n 5.6E+00 n 5.9E-03 n
2.0E-01 G 1.0E-01 G V 1 3.9E+02 Xylene, m-108-38-3 5.5E+02 ns 2.4E+03 ns 1.0E+02 n 4.4E+02 n 1.9E+02 n 1.9E-01 n
2.0E-01 G 1.0E-01 G V 1 4.3E+02 Xylene, o-95-47-6 6.4E+02 ns 2.8E+03 ns 1.0E+02 n 4.4E+02 n 1.9E+02 n 1.9E-01 n
2.0E-01 G 1.0E-01 G V 1 3.9E+02 Xylene, p-106-42-3 5.6E+02 ns 2.4E+03 ns 1.0E+02 n 4.4E+02 n 1.9E+02 n 1.9E-01 n
2.0E-01 I 1.0E-01 I V 1 2.6E+02 Xylenes 1330-20-7 5.8E+02 ns 2.5E+03 ns 1.0E+02 n 4.4E+02 n 1.9E+02 n 1.0E+04 1.9E-01 n 9.9E+00
3.0E-04 I 1 Zinc Phosphide 1314-84-7 2.3E+01 n 3.5E+02 n 6.0E+00 n
3.0E-01 I 1 Zinc and Compounds 7440-66-6 2.3E+04 n 3.5E+05 nm 6.0E+03 n 3.7E+02 n
5.0E-02 I 1 0.1 Zineb 12122-67-7 3.2E+03 n 4.1E+04 n 9.9E+02 n 2.9E+00 n
8.0E-05 X 1 Zirconium 7440-67-7 6.3E+00 n 9.3E+01 n 1.6E+00 n 4.8E+00 n
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