DERR-1991-014037 - 0901a06880540f93

hcK7
CONSENT FOR ACCESS TO CONDUCT SURVEYS
AND ENGINEERING STUDIES
VICINITY PROPERTY NO.: frlS O IQ^Z
PROPERTY ADDRESS: 181 S> I ^ S7T
PROPERTY PARCEL NUMBER OR DESCRIPTION: ftOOOOOOTo 03. B
I (We) acknowledge that I (We) own the property described above, and grant
permission to employees, contractor and subcontractor personnel, and other
representatives of the U.S. Department of Energy and the U.S. Environmental
Protection Agency to enter upon the property at reasonable time or times during the
next 36 months to conduct radiation surveys to determine the nature and extent of
any radioactive material that might be present. In addition, permission is given
to perform engineering assessments, if necessary, to evaluate the remedial measures
that might be taken, as well as to evaluate the extent of the work required and the
cost.
I (We) understand that DOE's responsibility for any damage or disturbance to my
(our) property caused by its activities shall be any backfilling, seeding, sodding,
landscaping, rebuilding or repair of the property required to restore it to a
condition comparable to its apparent physical condition immediately prior to entry
upon the property.
I (We) understand that the Monticello Vicinity Properties are a CERCLA (Superfund)
National Priority Listed (NPL) site and the cleanup of contaminated properties in
excess of EPA standards is mandated by law.
I (We) understand that the DOE and the State have the right to disclose to the
public, in the form of technical data and reports, the results of its data-
gathering on the above-described property.
OWNER DATA: (Please print clearly) TENANT DATA: (if applicable)
STRFFT

COMMENTS
BUS. PHONE
BUS. PHONE
SIGN AND RETURN WHITE COPY SCANNED
TABLE OF EVALUATION/FINDINGS
DOE ID NUMBER MS-01073
Evaluation Scope Guidelines Exceeded
Exceeds Screening Extend. Ra-226
DOE ID Guidelines Meas. Meas. 'Hot Spot' In Ext. Gamma
Number Yes No Int. Ext. Int. Ext. Criteria Soil Exp. Rate RDC
MS-01073 [X] [ ] [X] [X] [ ] [X] [X] t ] [ ] [ ]
DOE ID NO. MS-01073
381 South First West Street
VICINITY PROPERTY SUMMARY EVALUATION AND FINDINGS
1.0 Summary Evaluation
Inclusion Survey
RUST Geotech Inc.
Yes No Not Taken*
U.S. Department
of Energy (DOE)
Yes No Not Taken*
1.1 Extejcior Measurements
Gamma is > 25 UR/h above
background averaged over
100 m2
Gamma is < the acceptable
difference or < 20% above
background averaged over
100 nr*
Radium-22 6 is > 5 pCi/g
above background in top
15 cm layer averaged over
100 m2
Radium-22 6 is > 15 pCi/g
above background in any
subsurface 15 cm layer
averaged over 100 m2
Radium-226 is > "Hot
Spot• gu ide1ine
] [X] [ ]
[X] [ ] [ ]
[ ] [X] [ ]
[ ] [ ] [X]
[X] [ ] [ ]
[ ] [
[ ]
[ ) [ ]
(A 1> [ ]
1.2 Interior Measurements
Gamma is > 20 p^R/h above
background averaged in [ ] [X] [ ]
any room (9.3 m2)
Gamma is < the acceptable
difference or < 20% above [X] [ ] [ ]
background in all rooms
Annual average radon
decay-product concentration [ ] [ ] [X]
is < 0.02 working level
l)i [ ]
[ ] [ ]
[ ]
[ ]
Other:
*Data were not taken because:
[X] Data were not required to derive the findings.
[ ] Property owner did not authorize access for interior sampling.
DOB ID NO. MS-01073
381 South First West Street
2 .0 RUST Geotech Inc. Findings
The following table shows the property that was investigated by
RUST Geotech Inc. to determine whether the radiation levels exceed the
guidelines specified by DOE for Residual Radioactive Material at Formerly
Utilized Sites Remedial Action Program and Remote Surplus Facilities
Management Program Sites [Revision 2, March 1987] . The table also shows RUST
Geotech's evaluation and DOE's evaluation for this property.
Summary Table of Evaluation
RUST
Geotech's DOE's
Evaluation Evaluation
Exceeds Exceeds
DOE ID Guidelines Guidelines Additional
Number Yes No Yes No Data Required
MS-01073 [X3 [ ] [ ] C ]
Harry A. Perry ~~a ' ' Date
Monticello Programs *
Department of Energy EvaLttfitor * Date
DOE ID NO. MS-01073
381 South First West Street
3.0 Department: of Energy Evaluation
3.1 Additional Data Required:
3.2 RUST Geotech Inc.' s Response to Request for Additional Data:
3.3 DOE Approval or Response:
Based on DOE's review of this evaluation, including the further information
provided by RUST Geotech Inc. in Section 3.2 above, the recommendation for the
above property is listed below:
Department of Energy Evaluator Date
FIELD ASSESSMENTS SECTION
REPORT OF INCLUSION/EXCLUSION FOR
MS-01073
MONTICELLO, UTAH
Submitted: March 11,1994
Prepared by
RUST GEOTECH INC.
Grand Junction Projects Office
Grand Junction, Colorado 81502
for the
U.S. DEPARTMENT OF ENERGY
CONTENTS
Report of Radiological Survey
Property/Owner Information
Tables:
Radiological Screening Survey Results - Exterior Screening
Radiological Screening Survey Results - Interior Screening
Extended Survey Results - Exterior Extended Data
Appendix A - Radiological Assessment
DOE ID NO. MS-01073
Report of Radiological Survey
1.0 Introduction
A radiological screening survey of DOE ID Number MS-01073 was conducted by
RUST Geotech Inc. (Geotech). This survey was conducted using methods, as defined in
the Vicinity Properties Management and Implementation Manual, UMTRA-DOE/
AL-05O601 (March 1988), the U.S. Department of Energy (DOE) Guidelines for
Residual Radioactive Material at Formerly Utilized Sites Remedial Action Program,
Revision 2, March 1987, and the Geotech Field Assessments Procedures Manual.
The radiological survey of this property included gamma scans of the entire ground
surface (interior and exterior), samples of exterior soil, and evaluation of historical data
when present. An assessment was also performed on this property to determine the areal
and vertical extent of the contamination. The results of the radiological assessment are
shown in the Appendix A.
2.0 Summary of Recommendation
DOE ID Number MS-01073, located at 381 South First West Street, is recommended for
inclusion based on the following:
• Radium-226 concentration exceeds the 'Hot Spot' guideline.
3.0 Results and Conclusions
This property was split off from DOE ID number MS-00233-MR. The interior
background exposure rate for the mobile home is 12 uR/h; the exterior background
gamma exposure rate is 14 pR/h. Two regions of exterior elevated gamma exposure
rates were found and labeled Regions E3 and E4 (Figure la, Appendix A).
The soil samples collected from Regions E3 and E4 combined (Location Numbers R6,
R7, and R8, Figure la, Appendix A) yielded a net area-weighted average radium-226
concentration of 3.7 pCi/g. This value is less than the Environmental Protection Agency
guideline of 5.0 pCi/g above background for surface soil averaged over 100 m2. The
soil samples collected from Region E3 resulted in an average gross radium-226
concentration of 27.2 pCi/g. This value is greater than the 'Hot Spot' guideline of
15.2 pCi/g for a 14.4 m2 area. The gross radium-226 concentration results for the soil
samples and in-situ measurements are shown in Table lb, Appendix A.
PROPERTY/OWNER INFORMATION
MONTICELLO, UTAH
Page 1 of 1
DOE ID Number: MS-01073
Property Location:
Property Owner:
Owner Address:
Telephone Number:
Occupant/Tenant:
Telephone Number:
Property Classification:
Total Area of Property
Structures on Property:
381 South First West Street, Monticello, Utah 84535

Residence
903.3 m2
A mobile home and a frame shed
MM \
3*
11
Looking east
DOE ID Number MS-01073
381 South First West Street Page 1 of 2
- "Ml^ppf oglcaf Screwing Su&py flesulfc'
, Exterior Screening ^
* 3
Meas Background Exposure Rate (u.R/h): 14
Background Plus 20 Percent (uiVh): 17
Exposure-Rate Range in Contaminated Regions (uR/h): Region E3
Region E4
17-32
17-18
Region of Highest Exterior Gamma Exposure Rate (u,R/h): Region E3 32
Point Sources (Discussed in Section 3.0): None
Estimated Area of Exterior Contamination by Region (m2): Region E3
Region E4
14.4
1.4
Net Estimated Area-Weighted Average Gamma Exposure Rate by
Region (u.R/h):
Region E3
Region E4 <1
Radiological Screening Survey Results
' interior Screening A mm
Structure Description or Number: Mobile home
Mean Background Exposure Rate (ufl/h): 12
Background Plus 20 Percent (u.R/h): 14
Region of Highest Interior Gamma Exposure Rate (u,R/h): General 12
Point Sources (Discussed in Section 3.0): None
Net Estimated Area-Weighted Average(p,R/h):
Formula used to calculate the net estimated area-weighted average gamma exposure rate for
interior and exterior screening:
JAW
G, x A,
G 'AW
X
= the net area-weighted average gamma exposure rate (pR/h)
= a series of average gamma exposure rates less background (pR/h)
= a series of areas within regions of contamination (m2)
= threshold area (100 m2 for exterior and 9.3 m2 for interior)
DOE ID Number MS-01073
381 South First West Street Page 2 of 2
Extended Survey Results
¥A^W::>::>:§S£::S
Sample Location Number:
Region Sampled:
Sample Depth (cm):
Radium-226 Concentration (pCi/g):
Representative (biased) Sampling Area (m2):
Net Estimated Area-Weighted Average (pCi/g):
"Hot Spot' Guideline (pCi/g):
R6 R7
E3
R8
E4
15
27.5 / 26.8
14.4
11.1
1.4
3.7
15.2 44.3
Formula used to calculate the net estimated area-weighted average radium-226 concentration in
soil:
'AW
C, x At x Di
100 x 0.15
100
0L15
= the net area-weighted average radium-226 concentration (pCi/g)
= a series of average radium-226 concentrations less background (pCi/g)
= a series of areas within regions of contamination (m2)
= a series of depths of samples (m)
= the area used in averaging (m2)
= the depth of sample used in averaging (m)
Formula used to calculate the Hot Spot' guideline:
/
100 m2
+ Bkg
= the 'Hot Spot' guideline limit (pCi/g)
Sa = the maximum allowable radium concentration for this site
(5.0 pCi/g for surface soil and 15.0 pCi/g for subsurface soil)
A = the area of the Hot Spot' (m2)
Wkg = background radium concentration (2.0 pCi/g for Monticello, UT)
As shown in the table above, the soil samples collected in Region E3 resulted in an average
gross radium-226 concentration of 27.2 pCi/g. This value is greater than the 'Hot Spot'
guideline of 15.2 pCi/g for a 14.4 m2 area.
DOE ID NO. MS-00233-MR(nw^
(Includes MS-01073-RS)
APPENDIX A
RADIOLOGICAL ASSESSMENT FOR
DOE ID NO. MS-00233-MR
(INCLUDES MS-01073-RS)
Submitted: March 11, 1994
CONTENTS
Executive Surnmary
Team Leader Notes
Tables
Tables la. and lb. Radium Concentrations at Exterior Locations
Tables 2. Radium Concentrations at Interior Locations
Figures
Figure la. Gamma Exposure Rates/Sample Locations
Figure lb. Interior Gamma Exposure Rates/Sample Locations
Figure 2a. Exterior Estimated Extent of Contamination
Figure 2b. Interior Estimated Extent of Contamination
DOE ID NO. MS-00233-MR
(Includes MS-01073-RS)
Executive Summary
1.0 Introduction
The following properties, consisting of residences in Monticello, Utah, were assessed by
RUST Geotech Inc. (Geotech)
• MS-O0233-MR, located at 96 West Fourth South Street
• MS-O1073-RS, located at 381 South First West Street
Following procedures described in the Field Assessments Procedures Manual, data were
collected on these properties and assessed to estimate the location of residual radioactive
material in excess of the Environmental Protection Agency (EPA) 'Standards for
Remedial Action at Inactive Uranium Processing Sites' (40 CFR 192).
1.1 DOE ID number MS-00233-MR
This property has been included for remedial action by the U.S. Department of
Energy on the basis of Oak Ridge National Laboratory's identification of excess
radium-226 concentration in the land area, radium-226 concentration exceeding the
'Hot Spot' guideline, and excess gamma exposure rate in the occupied or habitable
building.
1.2 DOE ID number MS-01073-RS
This property is recommended for inclusion by Geotech on the basis of radium-226
concentration exceeding the 'Hot Spot' guideline.
2.0 Gamma Exposure-Rate Surveys
2.1 Exterior
2.1.1 DOE ID number MS-00233-MR
The area backgrounds are 14 pR/h and 2.0 pCi/g. The high exterior gamma
exposure rate is 80 pR/h. Areas of elevated exterior gamma exposure rates
are shown in Figure la.
DOE ID NO. MS-00233-MR
(Includes MS-01073-RS)
2.1.2 DOE ID number MS-01073-RS
The area backgrounds are 14 uR/h and 1.0 pCi/g. The high exterior gamma
exposure rate is 32 pR/h. Areas of elevated exterior gamma exposure rates
ans shown in Figure la.
2.2 Interior
2.2.1 DOE ID number MS-00233-MR
T&e interior background, as determined by Geotech, is 14 pR/h. The included
area averages 24 pR/h, and the high interior gamma exposure rate is 31pR/h.
Areas of elevated interior gamma exposure rates are shown in Figure lb.
2.2.2 DOE ID number MS-01073-RS
The interior background, as determined by Geotech, is 12 pR/h. The high
interior gamma exposure rate is 13 pR/h; there is no area exceeding the EPA
guidelines.
3.0 Radon/Radon Decay-Product Concentration (RDC)
3.1 DOE ID number MS-00233-MR
An alpha-track measurement was collected by Geotech. The result of the 121-day
sample is as follows:
PATE IN DATE OUT AVERAGE
WORKING LEVEL
November 13, 1991 March 13, 1992 0.0388
This measurement indicates that this property will probably exceed the EPA
guidelines. The RDC measurement location is shown in Figure lb.
3.2 DOE ID number MS-01073-RS
No RDC measurements were taken by Geotech.
DOE ID NO. MS-00233JV1R
(Includes MS-01073^RS)
4.0 Extent of Contamination
4.1 Exterj
4.1.1 DOE ID number MS-00233-MR
Figure la shows the locations of radium measurements made for this
property; the related radium data are listed in Table la. The maximum
radium concentration in the contaminated areas is 177.5 pCi/g.
Figure 2a shows the estimated boundary and depth of exterior contamination
for this property. The deposit containing identified residual radioactive
materials is characterized as follows:
In the bare soil area^—
4.1.2 DOE ID number MS-01073-RS
Figure la shows the locations of radium measurements made for this
property; the related radium data are listed in Table lb. The maximum
radium concentration in the contaminated areas is 27.5 pCi/g.
Figure 2a shows the estimated boundaries and depths of exterior
contamination for this property. The deposits containing identified residual
radioactive materials are characterized as follows:
In the bare soil and grass areas, and in the soil beneath the concrete slab.
4.2 Interior
4.2.1 DOE ID number MS-00233-MR
Figure lb shows the locations of radium measurements; the related radium
data are listed in Table 2. The maximum radium concentration in the
contaminated area is 39.7 pCi/g.
Figure 2b shows the estimated boundary of interior contamination. The
deposit containing identified residual radioactive materials is characterized as
follows:
-r
In the brick of the brick walls.
DOE ID NO. MS-00233-MR
(Includes MS-01073-RS)
4.2J, DOE ID number MS-01073-RS
There is no evidence of interior residual radioactive material at this property.
5.0 Remedial Action Recommendations
5.1 Exterior
5.1.1 DOE ID number MS-00233-MR
Exterior Deposit A (Figure 2a) should be removed and the appropriate cover
material replaced.
This property contains a deposit of uranium ore that exceeds 137.0 pCi/g
radium-226. The U.S. Department of Transportation requirements for Part 'B'
properties must be followed during remedial action.
5.1.2 DOE ID number MS-01073-RS
Exterior Deposits B and C (Figure 2a) should be removed and the appropriate
cover material replaced, if included by the U.S. Department of Energy.
This property contains deposits of uranium ore that are less than 137.0 pCi/g
radium-226. The U.S. Department of Transportation requirements for Part 'A'
properties must be followed during remedial action.
5.2 Interior
5.2.1 DOE ID number MS-00233-MR
Interior Deposit D (Figure 2b) should be remediated as follows:
Remove the brick walls and replace with new material.
5.2^2 DOE ID number MS-01073-RS
None.
6.0 Commingled Waste Investigation
A commingled waste investigation was not performed on either property.
/Ijg
TEAM LEADER NOTES
DOE ID NUMBER: MS-0Q233-MR (Includes MS-01073-RS)
SURVEY START DATE: October 15, 1991
TEAM LEADERS: Thomas R. Unrein / Mark Dailey
The DOE ID numbers, the property owners, and the telephone numbers for each property
assessed under DOE ID Number MS-00233-MR are as follows:
DOE ID Number Owners Telephone Numbers
MS-00233-MR David Gallegos (

All deposits described in the historical data were located and investigated.
Underground utility lines located during the assessment are shown on the drawings.
The exterior elevated readings on the north side of the one story frame house (Figure la) are
due to 'shine' from the adjacent interior contaminated brick walls.
Contamination in Deposit B (Figure 2a) appears to extend beneath the 3-inch-thick concrete
Interior contamination on DOE ID number MS-00233-MR (Deposit D, Figure 2b) is
associated with the 8-foot-high brick walls. A sample of the stucco, brick, and mortar were
obtained from the contaminated interior walls. The OCS results are as follows:
The results show the brick used in construction of the walls is contarninated.
There is no spillover to adjacent properties, as determined by a scintillometer scan.
/Ijg
slab.
Stucco
Brick
Mortar
3.2 pCi/g
69.1 pCi/g^
1.8 pCi/g
RADRPT V10.1 <921005>
DOE ID #MS-00233-MR
Table la
Radium Concentrations at Exterior Locations
96 West Fourth South Street
Monticello, Utah Page 1 of 1
Ra-226 (pCi/g) Survey Coord.
Seq Sample
Num Loc Num
R 1
R 2
R 3
R 4
R 5
Depth Meas. Non-
(in.) Type Deconv. Deconv.
00
00
00
00
00
06
to
North East
(ft.) (ft.) Comments
DS
DS
DS
DS
DS
DS
DS
2.1
<1.0
2.4
2.4
177.5
7.0
2.0
11921
11925
11923
11895
18664 Soil
Patio; concrete
18663 Soil
18/672 Soil
18714 Soil
11918 18715 Background
Measurement
Types:
DH = Downhole Survey
DS =>J3elta Scintillometer
GB = GAD—6 Borehole
GB = GAD-6 Surface
OC = Soil Sample by Opp. Crys. Sys.
SS = Soil Sample by Laboratory Analysis
TC = Total Count Borehole
Notes: DC = Depth of Contamination
[n] = Reading Taken n-Inches
Above Floor or Ground
Date of Survey = 10-15-91
Team Leader = TRU
Page 1 of 1
Ra-226 (pCi/g) Survey Coord.
Seq Sample Depth Meas. Non- North East
Num Loc Num (in.) Type Deconv. Deconv. (ft.) (ft.) Comments
R 6 00-06 SS 27.5 ^ 11987 18670 NCD-489
00 DS 7.2 Grass
00 DS 1.1 Concrete, 3-inch-thick
06 DS 6.0
06 DS 5.6 Hz beneath cone; 3-inch-thick
R 7 00-06 SS 26.8 S 11982 18678 NCD-490
00 DS 4.2 Grass
06 DS 3.8
R 8 00-06 SS 11.1 12001 18678 NCD-491
00 DS 6.0 Grass
06 DS 6.9
12 DS 6.4
R 9 00 DS <1.0 11965 18654 Soil; background
Measurement
Types:
DH = Downhole Survey
DS = Delta Scintillometer
GB = GAD—6 Borehole
GB = GAD-6 Surface
OC = Soil Sample by Opp. Crys. Sys.
SS = Soil Sample by Laboratory Analysis
TC = Total Count Borehole
Notes: DC = Depth of Contamination
[n] = Reading Taken n-Inches
Above Floor or Ground
Date of Survey = 12-10-91
Team Leader = MD
RADRPT V10.1 <921005> Table 2
Radium Concentrations at Interior Locations
96 West Fourth South Street
DOE ID #MS-00233-MR Monticello, Utah Page 1 of 1
Ra—226 (pCi/g) Survey Coord.
Seq Sample Depth Meas. Nor*— North East
Num Loc Num (in.) Type Deconv. Deconv. (ft.) (ft.) Comments
R 10 [48] DS 39.7 / 11916 18666 BrJ^Jkjrall; west
R 11 [24] DS 1-0 11912 18668 Against brick wall
00 DS -CL-0 Tile over wood; crawl space
00 DS <L.0 Concrete slab
R 12 [48] DS 36.6 ^ 11920 18671 Brick walU, north
00 DS 1.7 Concrete floor
R 13 00 DS <1.0 11912 18673 Linoleum over concrete floor
R 14 [30] DS 2S.9 11914 18677 Against brick; east wall
Measurement
Types:
DH = Downhole Survey
DS = Delta Scintillometer
GB = GAD-6 Borehole
GB = GAD—6 Surface
OC = Soil Sample by Opp. Crys. Sys.
SS = Soil Sample by Laboratory Analysis
TC = Total Count Borehole
Notes: DC = Depth of Contamination
[n] = Reading Taken n-Inches
Above Floor or Ground
Date of Survey = 10-15-91
Team Leader = TRU