DERR-2025-001204

WSP USA Inc.
10876 S River Front Parkway
South Jordan, Utah 84095
wsp.com

February 10, 2025

Mr. Kevin Beery
Utah Department of Environmental Quality
Division of Environmental Response and Remediation
195 North 1950 West
Salt Lake City, UT 84114

Mr. Brett Gurney
Utah Department of Government Operations
Division of Fleet Operations, State of Utah Fuel Network
447 West 13800 South
Draper, Utah 84020

Re: Free Product Recovery Report
Former UDOT Maintenance Station No. 324
375 West Main Street, Escalante, Utah
Facility Identification No. 6000243, Release Site HJT

Dear Mr. Beery and Mr. Gurney:
WSP USA Inc. (WSP) is pleased to submit this report for free product recovery events at the former Utah
Department of Transportation (UDOT) maintenance station No. 324, Escalante, Utah (Site). The Site has Facility
Identification No. 6000243, Release Site HJT. This report presents the results of a free product recovery events
conducted on December 4, 2024 by Aggressive Fluid Vapor Recovery (AFVR) technology. The free product
recovery events were conducted in accordance with the Utah Division of Environmental Response and
Remediation (DERR) approved Work Plan and Budget (WP&B) HJT-37, dated January 24, 2024, and Amendment 1
(HJT-37.1) dated June 24, 2024.
1.0 Background
Release HJT was reported for the Site in November 1992, following the removal from the Site of one 3,000-gallon
diesel-fuel underground storage tank (UST) and one 3,000-gallon gasoline UST.
Starting in 1993, Light non-aqueous phase liquids (LNAPL) were encountered in several monitoring wells on the
Site. A soil vapor extraction (SVE) system operated on the Site from 1998 through 2004. Following the shutdown
of the SVE system in 2004, LNAPL recharge has occurred in six monitoring wells at the Site: MW-1, MW-3, MW-7,
MW-9, MW-10, and MW-13 (Figure 1). Three other monitoring wells exhibited measurable LNAPL for some time
between 2004 and September 2023:
 MW-4 – measurable LNAPL of 0.01 ft was found in 2017; there was no measurable LNAPL in monitoring
events from 2019 to 2023.
 MW-15 – measurable LNAPL was found in 2008; the monitoring well was reported to be destroyed in
2010.
 MW-18 – measurable LNAPL was found in 2010; there was no measurable LNAPL in monitoring events
from 2013 to 2023.
In September 2023, measurable LNAPL was found in monitoring wells MW-1, MW-3, MW-7, MW-9, MW-10, and
MW-13 with a thickness that ranged between 0.17 to 2.20 feet. The type of LNAPL consisted of low boiling point
hydrocarbons in the form of gasoline. LNAPL were recovered using hand bailers during the September 2023
sampling event.
Two eight-hour AFVR events were conducted at the Site by Sump and Trap Cleaning LLC (Sump and Trap) under
the supervision of WSP on March 19 and April 16, 2024; a total of approximately 4.5 gallons of hydrocarbon
product were recovered from the on-Site monitoring wells in these two AVFR events1.
Approximately three weeks after the April 16th event, on May 6, 2024, measurable LNAPL was found in
monitoring wells MW-3, MW-7, MW-9, MW-10, and MW-13 with a thickness that ranged between 0.01 to 0.14 feet.
2.0 Aggressive Fluid Vapor Recovery Activities
Additional two eight-hour AFVR events were conducted at the Site by Sump and Trap under the supervision of
WSP on August 13, 2024 and on December 4, 2024. The AFVR activities were performed utilizing a liquid ring
vacuum pump (Fruitland RCF 500 series), 3-inch diameter discharge stack, a 3,000-gallon capacity tanker, 1-inch
flexible vacuum hoses for stingers, well head seals, and 1-inch and 2-inch flexible vacuum hoses for manifolding
multiple wells. The AFVR system was rated at 338 cubic feet per minute (cfm) free air flow at maximum vacuum
of 28.5 inches of mercury (“ Hg). During each event, measurements of relative humidity, temperature, vacuum,
exhaust velocity and off-gas vapor concentrations were collected at the discharge stack at half hour intervals and
recorded on a field log. A copy of the field logs is provided as Appendix A.
2.1 August 2024 AFVR Event
Monitor wells MW-1, MW-3, MW-7, MW-9, MW-10, and MW-13 were used as extraction wells and MW-8, MW-19,
and MW-21 were used as observation wells during the August 2024 AFVR event. Due to the number of wells with
LNAPL and the depth to the LNAPL-water interface, the extraction wells were divided into two groups;
monitoring wells in each group were manifolded together and pumped continuously for a four-hour period.
System vacuum was measured between 15- and 16-inches Hg for Group 1 and Group 2. Vacuum at the
observation wells were 0 inches Hg. The stinger pipes depths ranged from 42 feet to 47 feet below ground surface
(bgs) for Group 1 and 45 feet to 52 feet bgs for Group 2. The measured parameters of the vac truck effluent during
the event are summarized by group in Table 1a.

1 WSP. Free Product Recovery Report, Former UDOT Maintenance Station No. 324, 375 West Main Street, Escalante, Utah,
Facility Identification No. 6000243, Release Site HJT. May 21, 2024
Table 1a: Summary of Effluent Parameters (4-hour extraction per group), August 2024
Parameter Unit Group 1: MW-1, MW-7, MW-9 Group 2: MW-3, MW-10, MW-13
Minimum Maximum Average Minimum Maximum Average
Velocity ft/min 1,142 1,713 1,512 1,260 1,713 1,461
Temperature ˚F 130 165 155 145 175 157
Relative Humidity % 56 79 67 35 89 65
VOC ppm 226 304 268 152 331 233

A total of 109 gallons were extracted from the wells during the August 2024 AVFR event. No measurable LNAPL
was found in the tanker at the end of the event, therefore the volume of recovered liquid product was estimated
based on the LNAPL thickness in the wells (Appendix A). Calculation for estimating the volume of recovered
hydrocarbons in the vapor phase are included in Appendix B. A total of 0.53 gallons of free product were
recovered from the Site during the August 2024 event. Summary of recoveries during the August 2024 event are
presented in Table 1b.
Table 1b: Summary of Recoveries (gallons), August 2024
Group Time Total Volume Liquid Product1 Vaporized Product2
1 4 hours 96 0.20 0.095
2 4 hours 45 0.16 0.079
Total 141 0.36 0.174
1) Appendix A
2) Appendix B
All wastewater was transported to a licensed facility for disposal by Sump and Trap. A copy of the disposal
manifest is included in Appendix C.
2.2 December 2024 AFVR Event
Approximately three weeks after the August 13 event, on September 5, 2024, the six wells with LNAPL that were
used as extraction wells were gauged for LNAPL and depth to water. Measurable LNAPL was detected in
monitoring wells MW-1, MW-3, MW-7, MW-9, MW-10, and MW-13 with a thickness that ranged between 0.01 to
0.10 feet.
Monitor wells MW-1, MW-3, MW-7, MW-9, MW-10, and MW-13 were used as extraction wells and MW-8, MW-19,
and MW-21 were used as observation wells during the December 2024 AFVR event. The extraction wells were
divided into two groups and monitoring wells in each group were manifolded together and pumped continuously
for a four-hour period. System vacuum was measured between 14- and 16-inches Hg for Group 1 and Group 2.
Vacuum at the observation wells were 0 inches Hg. The stinger pipes depths ranged from 42 feet to 46.5 feet bgs
for Group 1 and 46 feet to 52 feet bgs for Group 2. The measured parameters of the vac truck effluent during the
event are summarized by group in Table 2a.
Table 2a: Summary of Effluent Parameters (4-hour extraction per group), December 2024
Parameter Unit Group 1: MW-1, MW-7, MW-9 Group 2: MW-3, MW-10, MW-13
Minimum Maximum Average Minimum Maximum Average
Velocity ft/min 1,772 2, 343 2,109 1,693 1,929 1,831
Temperature ˚F 73 115 106 90 125 109
Relative Humidity % 31.13 69.43 60.43 40.42 73.60 64.92
VOC ppm 47 146 72 146 329 251
A total of 180 gallons were extracted from the wells during the December 2024 AVFR event. No measurable
LNAPL was found in the tanker at the end of the event, therefore the volume of recovered liquid product was
estimated based on the LNAPL thickness in the wells (Appendix A). Calculation for estimating the volume of
recovered hydrocarbons in the vapor phase are included in Appendix B. A total of 0.205 gallons of free product
were recovered from the Site during the December 2024 event. Summary of recoveries during the December 2024
event are presented in Table 2b.
Table 2b: Summary of Recoveries (gallons), December 2024
Group Time Total Volume Liquid Product1 Vaporized Product2
1 4 hours 59 0.02 0.039
2 4 hours 62 0.03 0.116
Total 121 0.05 0.155
3) Appendix A
4) Appendix B
All wastewater was transported to a licensed facility for disposal by Sump and Trap. A copy of the disposal
manifest is included in Appendix C.
3.0 Conclusions
Approximately 0.735 gallons of hydrocarbon product were recovered from the on-Site monitoring wells in the
two AVFR events.
Approximately six weeks after the December 4, 2024 event, on January 16, 2025, the monitoring wells were
gauged for water levels and LNAPL thickness. Measurable LNAPL was detected in monitoring well MW-3, MW-7,
MW-9, MW-10, and MW-13 with a thickness that ranged between 0.01 to 0.09 feet; Measurable LNAPL was not
detected in monitoring well MW-1.
WSP will continue to monitor the LNAPL recharge rate in the monitoring wells at the Site during the next
groundwater monitoring event. Based on the findings of LNAPL recharge rate and amount, additional remedial
measures may be recommended for the Site.

Please contact Ehud Ardon at [e-mail] if you have any questions or comments regarding this
report.
Respectfully submitted,
WSP USA Inc.

Rylie Burke Ehud Ardon
Environmental Scientist Senior Environmental Scientist
Certified UST GW and Soil Sampler #GS-1939 Certified UST Consultant # CC-279

Enclosures:
Figure 1: Site Map
Appendix A: Field Logs
Appendix B: Vapor Phase Recovery Calculation
Appendix C: Disposal Manifests

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Vicinity Map
Site Map
Former UDOT Station No. 324324 West Main Street, Escalante, UtahFacility ID 6000243 Release Site HJT
The map shown here has been created with all due and reasonable care and is strictly for use with WSP USA Environment & Infrastructure Inc. Project Number 2381400505. This map has not been certified by a licensed land surveyor, and any third party use of this map comes without warranties of any kind. WSP USA Environment & Infrastructure Inc. assumes no liability, direct or indirect, whatsoever for any such third party or unintended use.
2381400505
CB4/25/2023
Job No.PM:Date:Scale:
FIGURE
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Legend
@A Monitoring Well
@A Abandoned Well
@A Destroyed Well
[ [Fence
0 6030
Feet ±
1 inch = 100 feetThe imagery service is provided byGoogle as part of a licenseagreement with the State of Utah
Former USTs

Appendix A: Field Logs

Event 3-Group 1
FIELD LOG
Site:Former UDOT 324-Escalante Site WSP Personel:Rylie Burke
Date:8/13/2024 Subcontractor:Sump and Trap Cleaning LLC
Vac Truck System Specs (cfm @ in Hg): 338 cfm @ 28.5" HG
Stack Diameter:3"
Well ID Diam.
(inch)
Intial
Depth to
FP
Intital
Depth to
Water
Intital
Stinger
Depths
Final
Depth to
FP
Final
Depth to
water
Final
Stinger
Depths
FP
Thickness
(feet)
FP Volume
(gal)*
Total
Volume
(gal)
MW-1 4 44.28 44.29 46 0.00 47.54 46.5 0.01 0.01
MW-3 4 Group 2
MW-7 2 43.88 43.93 45 0.00 46.69 45 0.05 0.01
MW-9 2 38.92 40.04 42 0.00 43.00 42 1.12 0.18
MW-10 2 Group 2
MW-13 2 Group 2
Total:0.20
Well ID:Diam.
(inch)
Intital
Depth to
Water
Final
Depth to
water
MW-21 4 51.40 51.37
MW-8 2 44.96 44.94
MW-19 4 42.82 42.82
Notes
Stinger adjusted deeper at MW-1 by ~4 inches at 10:50. No pressure changes at observation wells.
*volume is calculated based on FP thickness and well diameter
Measurable FP in tanker - sheen
Date Time
Time
Into Event
(Hours)
Velocity
(ft/min)
Rel. Hum.
(%)Temp (F)
Stack
VOCs
(PPM)
VAC
(hg")
MW-21 MW-8 MW-19
Start 830 0.0 -----0 0 0
900 0.5 1142 78.69 130 255 -15 0 0 0
930 1.0 1476 74.07 155 260 -15 0 0 0
1000 1.5 1555 71.75 160 262 -15 0 0 0
1030 2.0 1634 56.59 165 275 -15 0 0 0
1100 2.5 1516 56.25 160 304 -15 0 0 0
1130 3.0 1522 71.62 160 297 -15 0 0 0
1200 3.5 1535 66.90 155 264 -15 0 0 0
End 1230 4.0 1713 56.53 155 226 -16 0 0 0
Average 1512 66.55 155 268 -15
Minimum 1142 56.25 130 226 -16
Maximum 1713 78.69 165 304 -15
Extraction Wells
Monitoring wells were divided into two groups due to the distance between wells and depth to water. Each group was pumped for 4
hours.
Observation Wells
Observation wells (Hg")
Field Parameters
49
Page 1
Event 3-Group 2
FIELD LOG
Site:Former UDOT 324-Escalante Site WSP Personel:Rylie Burke
Date:8/13/2024 Subcontractor:Sump and Trap Cleaning LLC
Vac Truck System Specs (cfm @ in Hg): 338 cfm @ 28.5" HG
Stack Diameter:3"
Well ID Diam.
(inch)
Intial
Depth to
FP^
Intital
Depth to
Water
Intital
Stinger
Depths
Final
Depth to
FP
Final
Depth to
water
Final
Stinger
Depths
FP
Thickness
(feet)^
FP Volume
(gal)*
Total
Volume
(gal)
MW-1 4 Group1
MW-3 4 49.79 49.81 52 52.34 52 0.02 0.01
MW-7 2 Group1
MW-9 2 Group1
MW-10 2 43.05 43.92 45 45.63 45 0.87 0.14
MW-13 2 49.67 49.71 51 53.20 51 0.04 0.01
Total:0.16
Well ID:Diam.
(inch)
Intital
Depth to
Water
Final
Depth to
water
MW-21 4 51.40 51.37
MW-8 2 44.96 44.94
MW-19 4 42.82 42.82
Notes
No adjustments made to stinger height. No water level/pressure changes noted in observation wells.
*volume is calculated based on FP thickness and well diameter
Measurable FP in tanker - film, a bit more than a sheen and heavy odors
Date Time
Time
Into Event
(Hours)
Velocity
(ft/min)
Rel. Hum.
(%)Temp (F)
Stack
VOCs
(PPM)
VAC
(hg")
MW-21 MW-8 MW-19
Start 1300 4.5 1713 67.32 145 328 -15 0 0 0
1330 5.0 1673 89.38 145 331 -15 0 0 0
1400 5.5 1555 82.60 145 287 -16 0 0 0
1430 6.0 1319 76.19 155 232 -16 0 0 0
1500 6.5 1299 34.89 155 218 -16 0 0 0
1530 7.0 1378 68.76 160 204 -16 0 0 0
1600 7.5 1260 62.41 160 184 -16 0 0 0
1630 8.0 1398 48.27 170 160 -16 0 0 0
End 1700 8.5 1555 56.04 175 152 -16 0 0 0
Average 1461 65.10 157 233 -16
Minimum 1260 34.89 145 152 -16
Maximum 1713 89.38 175 331 -15
Observation wells (Hg")
Extraction Wells
60
Observation Wells
Monitoring wells were divided into two groups due to the distance between wells and depth to water. Each group was pumped for 4
hours.
Field Parameters
Page 5
Event 4-Group 1
FIELD LOG
Site:Former UDOT 324-Escalante Site WSP Personel:Emerson Codding
Date:12/4/2024 Subcontractor:Sump and Trap Cleaning LLC
Vac Truck System Specs (cfm @ in Hg): 338 cfm @ 28.5" HG
Stack Diameter:3"
Well ID Diam.
(inch)
Intial
Depth to
FP
Intital
Depth to
Water
Intital
Stinger
Depths
Final
Depth to
FP
Final
Depth to
water
Final
Stinger
Depths
FP
Thickness
(feet)
FP Volume
(gal)*
Total
Volume
(gal)
MW-1 4 44.33 44.34 46.34 0.00 47.42 48.34 0.01 0.01
MW-3 4 Group 2
MW-7 2 43.79 43.80 45.80 44.70 44.70 45.80 0.01 0.00
MW-9 2 40.71 40.75 42.75 0.00 40.31 42.75 0.04 0.01
MW-10 2 Group 2
MW-13 2 Group 2
Total:0.02
Well ID:Diam.
(inch)
Intital
Depth to
Water
Final
Depth to
water
MW-21 4 51.50 51.49
MW-8 2 44.73 44.74
MW-19 4 42.76 42.72
Notes
*volume is calculated based on FP thickness and well diameter
Measurable FP in tanker - sheen
Date Time
Time
Into Event
(Hours)
Velocity
(ft/min)
Rel. Hum.
(%)Temp (F)
Stack
VOCs
(PPM)
VAC
(hg")
MW-21 MW-8 MW-19
Start 1240 4.5 -----0 0 0
1310 5.0 1910 51.68 73 146 -14 0 0 0
1340 5.5 2185 31.13 110 86 -14 0 0 0
1410 6.0 2146 69.43 110 50 -14 0 0 0
1440 6.5 2343 65.25 115 61 -14 0 0 0
1510 7.0 2146 65.98 115 87 -16 0 0 0
1540 7.5 2343 66.59 115 53 -16 0 0 0
1610 8.0 1772 67.52 110 47 -16 0 0 0
End 1640 8.5 2028 65.83 100 48 -15 0 0 0
Average 2109 60.43 106 72 -15
Minimum 1772 31.13 73 47 -16
Maximum 2343 69.43 115 146 -14
Extraction Wells
Monitoring wells were divided into two groups due to the distance between wells and depth to water. Each group was pumped for 4
hours.
Observation Wells
Observation wells (Hg")
Field Parameters
Initial stinger depths set to ~ 2 feet below FP-water interface. At 1345 MW-1 stinger was lowered ~ 1 foot to ~ 47.3 feet below grade. No
pressure changes at observation wells.
59
Page 1
Event 4-Group 2
FIELD LOG
Site:Former UDOT 324-Escalante Site WSP Personel:Emerson Codding
Date:12/4/2024 Subcontractor:Sump and Trap Cleaning LLC
Vac Truck System Specs (cfm @ in Hg): 338 cfm @ 28.5" HG
Stack Diameter:3"
Well ID Diam.
(inch)
Intial
Depth to
FP^
Intital
Depth to
Water
Intital
Stinger
Depths
Final
Depth to
FP
Final
Depth to
water
Final
Stinger
Depths
FP
Thickness
(feet)^
FP Volume
(gal)*
Total
Volume
(gal)
MW-1 4 Group1
MW-3 4 49.73 49.74 52 0.00 51.84 52 0.01 0.01
MW-7 2 Group1
MW-9 2 Group1
MW-10 2 43.52 43.59 46 46.08 46.09 46 0.07 0.01
MW-13 2 49.47 49.52 52 0.00 54.20 52 0.05 0.01
Total:0.03
Well ID:Diam.
(inch)
Intital
Depth to
Water
Final
Depth to
water
MW-21 4 51.51 51.51
MW-8 2 44.81 44.81
MW-19 4 42.79 42.79
Notes
No adjustments made to stinger height. No water level/pressure changes noted in observation wells.
*volume is calculated based on FP thickness and well diameter
Measurable FP in tanker - film, a bit more than a sheen and heavy odors
Date Time
Time
Into Event
(Hours)
Velocity
(ft/min)
Rel. Hum.
(%)Temp (F)
Stack
VOCs
(PPM)
VAC
(hg")
MW-21 MW-8 MW-19
Start 850 0 -----0 0 0
920 0.5 1870 69.90 105 297 -15 0 0 0
950 1.0 1732 63.64 115 247 -15 0 0 0
1020 1.5 1870 65.27 110 316 -15 0 0 0
1050 2.0 1870 66.57 100 315 -15 0 0 0
1120 2.5 1929 67.00 125 329 -15 0 0 0
1150 3.0 1929 73.60 115 195 -15 0 0 0
1220 3.5 1693 40.42 110 163 -15 0 0 0
End 1250 4.0 1752 72.96 90 146 -15 0 0 0
Average 1831 64.92 109 251 -15
Minimum 1693 40.42 90 146 -15
Maximum 1929 73.60 125 329 -15
Observation wells (Hg")
Extraction Wells
121
Observation Wells
Monitoring wells were divided into two groups due to the distance between wells and depth to water. Each group was pumped for 4
hours.
Field Parameters
Page 2

Appendix B: Vapor Phase Recovery Calculation Sheets

Data Entry (Enter data into shaded cells only)
Bwsw = lb. Water/lb. Dry air =0.0297 lb./lb. (from chart; humidity measured by probe)
Bws = water vapor as % by volume = 0.0454 %(from guidelines)
V = velocity in ft/min = 1512 fpm (from Manometer)
V = velocity in ft/sec = 25.20 fps (from Manometer)
d = diameter of discharge [in.] =3 in.(diameter of exhaust pipe)
A = cross-sec. Area of discharge =0.0491 sq. ft. (Area of exhaust pipe)
Ts = stack Temp. degrees R = 615 deg. R (from guidelines)
Tf = stack Temp. deg. F =155 deg. F (from Temp. probe)
PPMw = ppm measured = 268 ppm (from PID meter)
1. Calculate Flow as Dry Standard Cubic Feet Per Minute (DSCFM).
Qstd = flow at DSCFM = 60.8 dscfm
2. Determine Pollutant mass Removal Rate as Gasoline (PMRg).
PPMw = PPMm = obtained value from PID meter = "wet" concentration = 268
PPMd = (PPMw)/(1-Bws) = "dry concentration = 281
K = # carbons in calibration gas = Isobutylene = 4) = 4
PPMc = (PPMd)*(K) = PPMv, vol. Conc. Of VOCs as carbon, dry@STP =1123
Mc = 12.01 mg/mg-mol, mw of carbon =12.0
K3 = 24.07 dscm/1E6 mg-mg-mol, mass to vol. Conv. Factor @STP =24.1
Ccm = PPMc*(Mc/K3) = mg/dscm, mass conc. Of VOC as carbon = 560
Cc = Ccm*(62.43E-9 lb.-m3/mg-ft3) = lb./dscf, mass conc. Of VOCs as carbon, dry@STP =3.50E-05
PMRc = Cc*Qstd*60 min/hr) = lb./hr, poll. Mass rem. Rate of VOCs as carbon =0.1277
Mg = 103 mg/mg-mol, mw of gasoline (value may vary depending on contaminant) =103
Mcg = 89 mg/mg-mol, weight of carbon in gasoline molecule =89
PMRg =
PMRg = (PMRc)*(Mg/Mcg) = lb./hr, pollutant mass removal rate of VOCs as gasoline = 0.1478 lb./hr
3. Convert lbs. Of gasoline emissions to gallons of liquid gasoline.
PMRgl =
PMRgl = (PMRg)*(gal/6.25 lbs.) =Mass Removal Rate as Gasoline in Gallons/hour =0.02364 gal/hr
Duration of Event (hrs)4 Total Gal Discharge
AfvrEmis 0.095 Gallons
AIR EMISSIONS CALCULATIONS
FORMER UDOT 324, 324 WEST MAIN STREET, ESCALANTE, UTAH
3RD EVENT-GROUP 1
13-Aug-24
Data Entry (Enter data into shaded cells only)
Bwsw = lb. Water/lb. Dry air =0.0297 lb./lb. (from chart; humidity measured by probe)
Bws = water vapor as % by volume = 0.0454 %(from guidelines)
V = velocity in ft/min = 1512 fpm (from Manometer)
V = velocity in ft/sec = 25.20 fps (from Manometer)
d = diameter of discharge [in.] =3 in.(diameter of exhaust pipe)
A = cross-sec. Area of discharge =0.0491 sq. ft. (Area of exhaust pipe)
Ts = stack Temp. degrees R = 615 deg. R (from guidelines)
Tf = stack Temp. deg. F =155 deg. F (from Temp. probe)
PPMw = ppm measured = 268 ppm (from PID meter)
1. Calculate Flow as Dry Standard Cubic Feet Per Minute (DSCFM).
Qstd = flow at DSCFM = 60.8 dscfm
2. Determine Pollutant mass Removal Rate as Gasoline (PMRg).
PPMw = PPMm = obtained value from PID meter = "wet" concentration = 268
PPMd = (PPMw)/(1-Bws) = "dry concentration = 281
K = # carbons in calibration gas = Isobutylene = 4) = 4
PPMc = (PPMd)*(K) = PPMv, vol. Conc. Of VOCs as carbon, dry@STP =1123
Mc = 12.01 mg/mg-mol, mw of carbon =12.0
K3 = 24.07 dscm/1E6 mg-mg-mol, mass to vol. Conv. Factor @STP =24.1
Ccm = PPMc*(Mc/K3) = mg/dscm, mass conc. Of VOC as carbon = 560
Cc = Ccm*(62.43E-9 lb.-m3/mg-ft3) = lb./dscf, mass conc. Of VOCs as carbon, dry@STP =3.50E-05
PMRc = Cc*Qstd*60 min/hr) = lb./hr, poll. Mass rem. Rate of VOCs as carbon =0.1277
Mg = 103 mg/mg-mol, mw of gasoline (value may vary depending on contaminant) =103
Mcg = 89 mg/mg-mol, weight of carbon in gasoline molecule =89
PMRg =
PMRg = (PMRc)*(Mg/Mcg) = lb./hr, pollutant mass removal rate of VOCs as gasoline = 0.1478 lb./hr
3. Convert lbs. Of gasoline emissions to gallons of liquid gasoline.
PMRgl =
PMRgl = (PMRg)*(gal/6.25 lbs.) =Mass Removal Rate as Gasoline in Gallons/hour =0.02364 gal/hr
Duration of Event (hrs)4 Total Gal Discharge
AfvrEmis 0.095 Gallons
AIR EMISSIONS CALCULATIONS
FORMER UDOT 324, 324 WEST MAIN STREET, ESCALANTE, UTAH
3RD EVENT-GROUP 2
13-Aug-24
Data Entry (Enter data into shaded cells only)
Bwsw = lb. Water/lb. Dry air = 0.0252 lb./lb. (from chart; humidity measured by probe)
Bws = water vapor as % by volume = 0.0388 % (from guidelines)
V = velocity in ft/min = 2109 fpm (from Manometer)
V = velocity in ft/sec = 35.15 fps (from Manometer)
d = diameter of discharge [in.] = 3 in. (diameter of exhaust pipe)
A = cross-sec. Area of discharge = 0.0491 sq. ft. (Area of exhaust pipe)
Ts = stack Temp. degrees R = 566 deg. R (from guidelines)
Tf = stack Temp. deg. F = 106 deg. F (from Temp. probe)
PPMw = ppm measured = 72 ppm (from PID meter)
1. Calculate Flow as Dry Standard Cubic Feet Per Minute (DSCFM).
Qstd = flow at DSCFM = 92.8 dscfm
2. Determine Pollutant mass Removal Rate as Gasoline (PMRg).
PPMw = PPMm = obtained value from PID meter = "wet" concentration = 72
PPMd = (PPMw)/(1-Bws) = "dry concentration = 75
K = # carbons in calibration gas = Isobutylene = 4) = 4
PPMc = (PPMd)*(K) = PPMv, vol. Conc. Of VOCs as carbon, dry@STP =300
Mc = 12.01 mg/mg-mol, mw of carbon = 12.0
K3 = 24.07 dscm/1E6 mg-mg-mol, mass to vol. Conv. Factor @STP = 24.1
Ccm = PPMc*(Mc/K3) = mg/dscm, mass conc. Of VOC as carbon = 150
Cc = Ccm*(62.43E-9 lb.-m3/mg-ft3) = lb./dscf, mass conc. Of VOCs as carbon, dry@STP =9.33E-06
PMRc = Cc*Qstd*60 min/hr) = lb./hr, poll. Mass rem. Rate of VOCs as carbon =0.0520
Mg = 103 mg/mg-mol, mw of gasoline (value may vary depending on contaminant) = 103
Mcg = 89 mg/mg-mol, weight of carbon in gasoline molecule = 89
PMRg =
PMRg = (PMRc)*(Mg/Mcg) = lb./hr, pollutant mass removal rate of VOCs as gasoline = 0.0602 lb./hr
3. Convert lbs. Of gasoline emissions to gallons of liquid gasoline.
PMRgl =
PMRgl = (PMRg)*(gal/6.25 lbs.) =Mass Removal Rate as Gasoline in Gallons/hour =0.00963 gal/hr
Duration of Event (hrs)4 Total Gal Discharge
AfvrEmis 0.039 Gallons
4-Dec-24
4TH EVENT-GROUP 1
FORMER UDOT 324, 324 WEST MAIN STREET, ESCALANTE, UTAH
AIR EMISSIONS CALCULATIONS
Data Entry (Enter data into shaded cells only)
Bwsw = lb. Water/lb. Dry air =0.0252 lb./lb. (from chart; humidity measured by probe)
Bws = water vapor as % by volume = 0.0388 %(from guidelines)
V = velocity in ft/min = 1831 fpm (from Manometer)
V = velocity in ft/sec = 30.5 fps (from Manometer)
d = diameter of discharge [in.] =3 in.(diameter of exhaust pipe)
A = cross-sec. Area of discharge =0.0491 sq. ft. (Area of exhaust pipe)
Ts = stack Temp. degrees R = 569 deg. R (from guidelines)
Tf = stack Temp. deg. F =109 deg. F (from Temp. probe)
PPMw = ppm measured = 251 ppm (from PID meter)
1. Calculate Flow as Dry Standard Cubic Feet Per Minute (DSCFM).
Qstd = flow at DSCFM = 80.2 dscfm
2. Determine Pollutant mass Removal Rate as Gasoline (PMRg).
PPMw = PPMm = obtained value from PID meter = "wet" concentration = 251
PPMd = (PPMw)/(1-Bws) = "dry concentration = 261
K = # carbons in calibration gas = Isobutylene = 4) = 4
PPMc = (PPMd)*(K) = PPMv, vol. Conc. Of VOCs as carbon, dry@STP =1045
Mc = 12.01 mg/mg-mol, mw of carbon =12.0
K3 = 24.07 dscm/1E6 mg-mg-mol, mass to vol. Conv. Factor @STP =24.1
Ccm = PPMc*(Mc/K3) = mg/dscm, mass conc. Of VOC as carbon = 521
Cc = Ccm*(62.43E-9 lb.-m3/mg-ft3) = lb./dscf, mass conc. Of VOCs as carbon, dry@STP =3.25E-05
PMRc = Cc*Qstd*60 min/hr) = lb./hr, poll. Mass rem. Rate of VOCs as carbon =0.157
Mg = 103 mg/mg-mol, mw of gasoline (value may vary depending on contaminant) =103
Mcg = 89 mg/mg-mol, weight of carbon in gasoline molecule =89
PMRg =
PMRg = (PMRc)*(Mg/Mcg) = lb./hr, pollutant mass removal rate of VOCs as gasoline = 0.181 lb./hr
3. Convert lbs. Of gasoline emissions to gallons of liquid gasoline.
PMRgl =
PMRgl = (PMRg)*(gal/6.25 lbs.) =Mass Removal Rate as Gasoline in Gallons/hour =0.0290 gal/hr
Duration of Event (hrs)4 Total Gal Discharge
AfvrEmis 0.116 Gallons
AIR EMISSIONS CALCULATIONS
FORMER UDOT 324, 324 WEST MAIN STREET, ESCALANTE, UTAH=
4TH EVENT-GROUP 2
4-Dec-24

Appendix C: Disposal Manifests

NON•HAZARDOUS WASTE MANIFEST
Please prim or type. (Form designed for use on elite (12-p8ch) typewriter.)
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NON-HAZARDOUS 1. Generators US EPA ID No.
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Manifest
Document No e....0 ,--+ 2. Page 1
1
WASTE MANIFEST cIl
3. Generator's Name and Wang Address
UDOT 324
324 W Main
Escalante Utah84106
4. Generators Phone ( )
5. Transporter 1 Company Name 6. US EPA ID Number
SUMP & TRAP CLEANING LLC I UTR000012286 A. Transporter 1 Phone [phone]
7. Transporter 2 Company Name a. us EPA ID Number B. State Transporter's ID
I C. Transporter 2 Phone
9. Designated FaOciity Name and Ste Address 10. US EPA ID Number
SUMP & TRAP CLEANING LLC
D. State Facilltys ID
618 SOUTH 4050 WEST
LAKE CITY UTAH 84104 UTR000012286
I
E. FacitiNs Pbcne
8015958151
1 1 . WASTE DESCRIPTION Containers
No. Type
13.
Total
Quantity
14.
UnIt
Wt Nor.
a.
NON REGULATED WASTE WATER, PETROLEUM IMPACTED WASTE WATER 1 TT
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c.
d.
F. Additional Descriptions for Materials Listed Above G. Handling Codes for Wastes Listed Above
15. Special Harding Instructions end Additional Information
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16. GENERATOR'S CERTIFiCATiON: I hereby certify Vial the contents of this shiperent ere fully and accurately described and are in all respects
In proper COnCiftiOn for transport The materials described on this manifest are not subject to federal haPardous waste regulations
I Date
PiintecleType Name .
9—NAW ITI •Sb \k\t "2 "
Signature Month
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Year
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17. Tranpsporter 1 Acknowledgment of Receipt of Materials Date
riA p ntecirTyped Name
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Signature Z i r'' 6 (-....e........ Month
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18. Transporter 2 Ar anleidTnent of Receipt of Materials Date
printed/Typed Name Signature Month Day Year
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19. Discrepancy Indication Space
20. Facility Owner or Operator. Certification of receipt of the waste materials covered by this manliest except es noted in item 19.
[ Date
Printed/Typed Name
A rdl D*.aY
Year
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F14 Pilled by Labelrrtaster, An American Labe1mark Co., Chicago. IL 60646 (BOO) 621.6808 01) .194,. COI 01,:rrtal to Po, R
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