DERR-1990-014577 - 0901a0688053e201

JAN 2 1990^
PROPERTY COMPLETION REPORT
FOR
MONTICELLO
VICINITY PROPERTY REMEDIAL ACTION
FOR
DOE ID NO.: MS-00091-RS
ADDRESS: 265 EAST FIRST SOUTH STREET
MONTICELLO, UTAH 84535
JANUARY 1990
Prepared for
Surplus Facilities Management Program
Division of Facilities and Site Decommissioning
Department of Energy
by
UNC Geotech
P.O. Box 14000
Grand Junction, Colorado 81502-5504
Brian W. Mathi's
SFMP Program Manager
UNC Geotech has been granted authorization to perform remedial action under
the Surplus Facilities Management Program. Remedial action was done in
accordance with the Environmental Protection Agency (EPA) Standards for
Cleanup of Lands and Buildings Contaminated with Residual Radioactive Material
from Inactive Uranium Processing Sites, 40 CFR 192.32, 192.20-23.
MS-00091-RS:MS-03
TABLE OF CONTENTS
Section Page
1.0 SUMMARY 1
1.1 Basis for Remedial Action 1
1.2 Criteria for Remedial Action , • 1
1.3 Summary of Remedial Action • • 2
2.0 OPERATIONS SUMMARY 3
2.1 Abstract of Remedial Action Plan 3
2.2 Previously Unidentified Contamination . 3
2.3 Unanticipated Items During Remedial Action 3
2.4 Application of Supplemental Standards 3
3.0 VERIFICATION SUMMARY 4
3.1 Radiological Survey Data 4
3.1.1 Pre-Remedial Action Survey 4
3.1.2 Post-Excavation Survey 4
3.1.3 Radon Decay-Product Concentration (RDC) Measurement ... 4
3.2 Recommendation for Certification 5
Certification Data Summary 5
4.0 APPENDIX 6
DOE ID NO.: MS-00091-RS
1.0 SUMMARY
1.1 Basis for Remedial Action
The Monticello Vicinity Properties (MVP) project was accepted into
the Surplus Facilities Management Program (SFMP) with the primary
objective of reducing the potential hazard to the public due to
long-term exposure to low-level radioactivity associated with the
offsite mill tailings derived from the former U.S. Atomic Energy
Commission (AEC) uranium mill.
The original mill, built in 1942, was financed by the United States
Government through its agent, the Defense Plant Corporation, to
provide additional sources of vanadium needed during World War II.
Various government agencies operated the mill until 1947. The AEC
obtained the mill in 1948 and operated it through 1959 under
cost-type contracts to provide both uranium and vanadium. Mill
operations were terminated on January 1, 1960.
The mill processed approximately one million tons of ore during the
AEC operations. Throughout the operating period, tailings from the
Monticello millsite were removed from the site and used for
construction-related activities in the vicinity.
1.2 Criteria for Remedial Action
The SFMP has adopted the "Standards for Remedial Action at Inactive
Uranium Processing Sites" (40 CFR Part 192) as guidelines for all
cleanup activities under the MVP project. These standards were
prepared by the Environmental Protection Agency (EPA) to establish
guidelines for the control of tailings piles and the cleanup of
buildings and open lands.
The subject property was evaluated on the basis of the EPA standards
by the Department of Energy (DOE) which determined that residual
radioactive materials in excess of EPA standards were present on the
property. UNC Geotech/Grand Junction Projects Office (UNC Geotech)
was notified of the inclusion of this property into the SFMP
program, and authorized by the DOE to perform remedial action as
required to bring the property into conformance with the EPA
standards.
DOE ID NO.: MS-00091-RS
Summary of Remedial Action
DOE ID No.:
Legal Description:
Property Address:
Property Owners:
Property Category:
Inclusion Survey Contractor:
Inclusion Notification Date:
Remedial Action Contractor:
Radiological & Engineering
Assessment (REA):
Construction Subcontractor:
Pre-Construction Conference
Record:
Notice of Final Completion
Inspection:
Volume of Material
Removed:
Area Cleaned Up:
Property Completion Report
Submitted:
MS-00091-RS
Parcel No. M-171, Block 21, City of
Monticello, County of San Juan,
State of Utah
265 East First South Street
Monticello, Utah 84535

Residential Simple (RS)
Not applicable; historical inclusion
by the Department of Energy
November 1, 1984
UNC Geotech
February 21, 1986
Eldon Ray, Contracting
P.O. Box 10
Moab, Utah
August 11, 1986
September 19, 1986
Exterior: 128 cu. yd.
Interior: 0 cu. yd.
474 m2
January 1990
DOE ID NO.: MS-00091-RS
2.0 OPERATIONS SUMMARY
2.1 Abstract of Remedial Action Plan
The remedial action plan involved removal of exterior contamination
(Appendix Figure 2.1). Once excavation was complete, the affected
areas were resurveyed for possible remaining contamination and, upon
attaining satisfactory results, were backfilled with uncdntaminated
material. The property was restored to a condition comparable to
that which existed prior to remedial action activities.
2.2 Previously Unidentified Contamination
The original radiological assessment identified 91 cu. yd. of
tailings, from 6 inches to 15 inches deep, within the property. The
remedial action process Included the removal of 128 cu. yd. of
residual radioactive material, ranging from 6 inches to 24 inches
deep (Appendix Figure 2.1).
The difference between the original assessment and the actual
material removed is shown in Appendix Figure 2.1.
2.3 Unanticipated Items During Remedial Action
None.
2.4 Application of Supplemental Standards
Supplemental standards were not applicable to the tailings removal
activities performed on the property.
DOE ID NO.: MS-00091-RS
3.0 VERIFICATION SUMMARY
3.1 Radiological Survey Data
All survey data were acquired according to approved procedures.
3.1.1 Pre-Remedial Action Survey
A radiological survey was conducted by UNC Geotech during
October 1985, as described in the final REA, dated February
1986. Appendix Figure 2.1 shows the extent of contamination
determined during the pre-remedial assessment and identifies
the areas recommended to undergo remedial action.
3.1.2 Post-Excavation Survey
A ground-level gamma scan with a scintillometer was performed
after the removal of contamination and prior to backfilling.
Following the gamma scan, soil samples representative of the
6-inch-thick soil layer at the bottom of the excavation were
collected. The samples were blended to form composite
samples representing an average over the verification areas
(Appendix Figure 2.1).
Exterior Findings: Surface exposure-rate values determined
during the gamma scan ranged from 13 /iR/h to 21 (iR/h
(Appendix Figure 2.1). The results of analyses for Ra-226
in 10 composite soil samples taken from the excavated areas
ranged from 1.0 pCi/g to 5.6 pCi/g (Appendix Table 3.1).
3.1.3 Radon Decay-Product Concentration (RDC) Measurement
Based on measurements representing an annual average, the RDC
was determined to be below the EPA standard (Appendix Table 3.2).
Appendix Figure 2.1 shows the measurement location in the
basement (the lowest level of the structure).
DOE ID NO.: MS-00091-RS
3.2 Recouendation For Certification
Residual radioactive materials have been removed from this property
to the extent required by the EPA standards (40 CFR, Part 192,
Subpart B, Paragraph 192.12). (See Certification Data Summary
below.)
Therefore, the property located at 265, East First South Street, in
Monticello, Utah, is recommended for certification as required by
the SFMP Program guidelines, and the appropriate record should be
documented.
Applicability
Habitable Structures
Exposure Rate:
Radon Decay-Product
Concentration:
Certification Data Summary
Standards
Shall not exceed 20 /tR/h
above background.*
Annual average shall not
exceed 0.02 WL, to the
extent practicable; and
in no case shall exceed
0.03 WL.
Survey Results
Range for the basement
is 12 /iR/h to 15 (iR/h
(Appendix Figure 2.1).
Annual average 0.029 WL
(Appendix Table 3.2).
Land
Radium-226 Concentration
in Surface Soil:
Shall not exceed 5 pCi/g
above background** in
the 15-cm surface layer,
averaged over 100 ra2.
< 5 pCi/g above
background.
Radium-226 Concentration Shall not exceed 15 pCi/g The soil sample
in Subsurface Soils: above background** in any results ranged from
15-cm-thick soil layer 1.0 pCi/g to 5.6 pCi/g
more than 15 cm below the (Appendix Table 3.1).
surface, averaged over
100 m2.
*The background exposure rate is approximately 15 /iR/h.
*The background radium-226 concentration is approximately 2.0 pCi/g.
r
DOE ID NO.: MS-00091-RS
4.0 APPENDIX
Appendix Tables:
Table 3.1 Post-Excavation Sample/Measurement Results
Table 3.2 Radon Decay-Product Concentration (RDC)
Measurement Results
Appendix Figure:
Figure 2.1 Exterior Extent of Contamination - RADIOLOGICAL
AS-BUILT
Appendix Table 3.1
Post-Excavation Sample/Measurement Results
DOE ID No.: MS-00091-RS
Address: 265 East First South Street, Monticello, Utah
The analytical uncertainties in the table are reported at the 95-percent
confidence interval.
Exposure-Rate Soil Sample Ra-226 Potassium Thorium
Area Range (^R/h) Ticket No. (pCi/g) (pCi/g) (pCi/g)
V-l
V-2
V-3
V-4
V-5
V-6
V-7
V-8
V-9
V-10
14
15
14
15
18
14
15
14
14
14
21
18
19
20
20
18
17
18
19
21
MMU 185
MMU 186
MMU 187
MMU 188
MMU 209
MMU 196
MMU 197
MMU 198
MMU 199
MMU 200
1.6
1.6
2.2
2.4
5.6
1.4
2.5
1.0
1.7
2.5
0.2
0.2
0.2
0.2
0.5
0.2
0.2
0.1
0.2
0.2
25.5
25.8
24.1
23.3
21.3
24.9
25.7
26.0
25.0
24.1
5.5
5.5
5.3
5.2
8.8
5.4
5.6
5.6
5.5
5.3
1.
1.
0.
1,
1.
0.
0.9
1.2
1.1
0.7
0.2
0.2
0.2
0.2
0.4
0.2
0.2
0.2
0.2
0.2
See Appendix Figure 2.1 for the verification areas.
7
Appendix Table 3.2
Radon Decay-Product Concentration (RDC) Measurement Results
DOB ID No.: MS-00091-RS
Address: 265 East First South Street, Monticello, Utah
Instrument Type: Terradex Track EtchR Detector
Radon Average
Detector Tracks Per Concentration Working
Number Start Date End Date mm2 (pCi/1) Level (WL)
316202
316140
316053
11-06-86
11-06-86
11-06-86
11-06-87
11-06-87
LOST
45.4
39.8
5.9
5.3
0.030
0.027
Annual Average: 0.029
See Appendix Figure 2.1 for the measurement location.
BGS:12/22/87
MS-00091-RS:MS-03
REV100287
e
12 14 16 26 10 18 20 22 28 30 24 32 34 36 38 40
•—P—p—r-!—?—? I } ] 1 ! 1 ! 1 I 1 1
V-4
15-20
12 6 ! 6
H YJ2
• •*—»
12 W-15 12 13-15
ETAL 5 V-5
18-20
SHED
24 i • - »•»•«
>• V-3 ONE: STORY
FRAME W/ i
BASEMENT"-
14-19
(RTX) 12-15 I5H7 14-16 _ t VfM
3"
12 12 9 .1
V-l V-6
14-18
V-8
14-18
V-IO V-2
15-18 14-21 14-21
LEGEND V-9 V-7
15-17 14-19 0 ASSESSED AREA IDENTIFIER
(s) AVERAGE DEPTH OF ASSESSED CONTAMINATION
AREA OF ASSESSED CONTAMINANTS
12 -15 POST REMEDIAL ACTION EXPOSURE-RATE RANGE
— BOUNDARY OF EXCAVATION
V-2
15-19
(RDC)
VERIFICATION SOIL SAMPLE AREA IDENTIFIER
AND EXCAVATION EXPOSURE-RATE RANGE
POST REMEDIAL ACTION RADON DAUGHTER ' v
CONCENTRATION MEASUREMENT LOCATION
RADIOLOGICAL AS-BUILT
FIGURE 2.1
12 AVERAGE EXCAVATED DEPTH FOR THE DEPOSIT
OF CONTAMINATION
ALL DEPTHS IN INCHES
ALL EXPOSURE-RATES IN /iR/h
T
Y
10 12
20 IO 20: 40
pun
FT
18 1 4 16 20
.Th*». .KWrWl.tof.th« S»(rrtK»
Maii>tfrTiwrt Pfcyww, h for th»;»oW uWof th* U.S.
D*o*rtM*rt of Cn*r^Y thd rta eotrtr»ctorft. rt «• not • tend!
»urvrr P*«t «c •« improvement »prv»y ptejt end ra pot to b«
•p»Ji#rf ivon tar fr* *rt*tjk*t\ m • wf-<f-f f>c». bwitdifo, of • - •
EXTERIOR
»evi$io<ts
v. vLaJbJJ
!
22 24 26 28 ^30
EXTEN
E SITE
CONTAMINATION
ȣvS>ONS * c
U.S. DEPARTMENT OF ENERGY
3»»«0 JWCTlQH PKQjtCTj pr»ict. C0LO«*OO
32
3.6rj> ^o-gf
265 E 1st SOUTH STREET
MONTICELLO, UTAH
32 34 36 4'.
DOE ID NO. : MS- OOOf / - S. ... .
Property Address: East First" Souti, .Stree"t~
VICINITY PROPERTY CERTIFICATION SUMMARY AND RECOMMENDATION
SUMMARY EVALUATION
Chem-Nuclear Geotech, Inc.
YES NO NOT TAKEN
Ra-226 is < 5 pCi/g
above background in top
15-cm layer of soil
averaged over 100 mJ. [X]* [ ] [ ]
In-situ [X] Lab [ ]
Ra-226 is < 15 pCi/g
above background in any
15-cm layer of soil
more than 15 cm below
the surface averaged
over 100 m2. [XI [ ] [ ]
In-situ [ ] Lab X]
Interior gamma is < 20 pR/h
above background in any
occupied or habitable
structure. [xj [ ] [ ]
The radon decay-product
concentration in any
occupied or habitable
structure is < 0.02
working levels or, at
most, 0.03 working levels. £>fj [ ] [ ]
Supplemental standards were
applied in accordance with
EPA standard 40 CFR 192.21. [ ] X [ ]
Hot spot criteria met as
outlined by U.S. DOE
guidelines for FUSRAP and
SFMP (Rev. 03/02/87). [ ] [ ]
U.S. Department
of Energy (DOE)
YES NO NOT TAKEN
•y
[ }
[ ] I )
[ }
t ]
[ ]
{ )
[ ]
[ )
[ ]
t ]
COMMENTS: *The excavations were backfilled with materials which were measured
at the source showing that the Ra-226 concentrations are in the range of
normal background. Other surface areas were verified on the basis of gamma
exposure rates which do not exceed 30-percent above normal background.
J
DOE ID NO. : MS- 0OOt) I ~ £• S
CHEM-NUCLEAR GEOTECH, INC., RECOMMENDATION
Based on the Chem-Nuclear Geotech, Inc., evaluation, I recommend this property
for:
[X] Certification by the Department of Energy.
[ ] Certification by the Department of Energy with the concurrence of the
Nuclear Regulatory Commission because supplemental standards were
applied per 40 CFR 192.21.
Harry A. Pe
SFMP Manage'
Chem-Nuclear
Date
Geotech, Inc.
DOE EVALUATION
\%] Should be certified by the Department of Energy.
[ ] Should be certified by the Department of Energy with the concurrence
of the Nuclear Regulatory Commission because supplemental standards
were applied per 40 CFR 192.21.
tification Official Date SFMP Cert
Department of Energy
DEC 2 7 1996
PROPERTY COMPLETION REPORT
FOR
MONTICELLO
VICINITY PROPERTY REMEDIAL ACTION
FOR
DOE ID NO.: MS-O0134-MR
ADDRESS: 216 SOUTH THIRD EAST STREET
MONTICELLO, UTAH 84535
JANUARY 1990
Prepared for
Surplus Facilities Management Program
Division of Facilities and Site Decommissioning
Department of Energy
by
UNC Geotech
P.O. Box 14000
Grand Junction, Colorado 81502-5504
Brian W. Mathis
SFMP Program Manager
UNC Geotech has been granted authorization to perform remedial action under
the Surplus Facilities Management Program. Remedial action was done in
accordance with the Environmental Protection Agency (EPA) Standards for
Cleanup of Lands and Buildings Contaminated with Residual Radioactive Material
from Inactive Uranium Processing Sites, 40 CFR 192.12, 192.20-23.
MS-00134-MR-.PCR-02
TABLE OF CONTENTS
Section page
1.0 SUMMARY 1
1.1 Basis for Remedial Action 1
1.2 Criteria for Remedial Action 1
1.3 Summary of Remedial Action 2
2.0 OPERATIONS SUMMARY 3
2.1 Abstract of Remedial Action Plan 3
2.2 Previously Unidentified Contamination 3
2.3 Unanticipated Items During Remedial Action 3
2.4 Application of Supplemental Standards 3
3.0 VERIFICATION SUMMARY 4
3.1 Radiological Survey Data 4
3.1.1 Pre-Remedial Action Survey 4
3.1.2 Post-Excavation Survey 4
3.1.3 Radon Decay-Product Concentration (RDC) Measurement ... 4
3.2 Recommendation for Certification 5
Certification Data Summary 5
4.0 APPENDIX 6
DOE ID NO.: MS-00134-MR
1.0 SUMMARY
1.1 Basis for Remedial Action
The Monticello Vicinity Properties (MVP) project was accepted into
the Surplus Facilities Management Program (SFMP) with the primary
objective of reducing the potential hazard to the public due to
long-term exposure to low-level radioactivity associated with the
offsite mill tailings derived from the former U.S. Atomic Energy
Commission (AEC) uranium mill.
The original mill, built in 1942, was financed by the United States
Government through its agent, the Defense Plant Corporation, to
provide additional sources of vanadium needed during World War II.
Various government agencies operated the mill until 1947. The AEC
obtained the mill ln 1948 and operated it through 1959 under
cost-type contracts to provide both uranium and vanadium. Mill
operations were terminated on January 1, 1960.
The mill processed approximately one million tons of ore during the
AEC operations. Throughout the operating period, tailings from the
Monticello millsite were removed from the site and used for
construction-related activities in the vicinity.
1.2 Criteria for Remedial Action
The SFMP has adopted the "Standards for Remedial Action at Inactive
Uranium Processing Sites" (40 CFR Part 192) as guidelines for all
cleanup activities under the MVP project. These standards were
prepared by the Environmental Protection Agency (EPA) to establish
guidelines for the control of tailings piles and the cleanup of
buildings and open lands.
The subject property was evaluated on the basis of the EPA standards
by the Department of Energy (DOE) which determined that residual
radioactive materials in excess of EPA standards were present on the
property. UNC Geotech/Grand Junction Projects Office (UNC Geotech)
was notified of the inclusion of this property into the SFMP program
and authorized by the DOE to perform remedial action as required to
bring the property into conformance with the EPA standards.
DOE ID NO.: MS-00134-MR
Summary of Remedial Action
DOE ID No.:
Legal Description:
Property Address:
Property Owners:
Property Category:
Inclusion Survey Contractor:
Inclusion Notification Date:
Remedial Action Contractor:
Radiological & Engineering
Assessment (REA):
Construction Subcontractor:
Pre-Construction Conference
Record:
Notice of Final Completion
Inspection:
Volume of Materia]
Removed:
Area Cleaned Up:
Property Completion Report
Submitted:
MS-00134-MR
Parcel No. M-75-2, Block 11, City of
Monticello, County of San Juan, State
of Utah
216 South Third East Street
Monticello, Utah 84535

Major Residential (MR)
Not applicable; historical Inclusion
by the Department of Energy
June 8, 1984
UNC Geotech
December 14, 1984
Sutherland Brothers, Inc.
P.O. Box 218
Monticello, Utah
June 20, 1985
August 27, 1985
Exterior: 157 cu. yd.
Interior: 6 cu. yd.
497 m2
January 1990
DOE ID NO.: MS-00134-MR
2.0 OPERATIONS SUMMARY
2.1 Abstract of Remedial Action Plan
The remedial action plan involved removal of exterior and interior
contamination (Appendix Figure 2.1). Once excavation was complete,
the affected areas were resurveyed for possible remaining
contamination and, upon attaining satisfactory results, were
backfilled with uncontaminated material. The property was restored
to a condition comparable to that which existed prior to remedial
action activities.
2.2 Previously Unidentified Contamination
The original radiological assessment identified 162 cu. yd. of
tailings, from 6 inches to 15 inches deep, within the property. The
remedial action process included the removal of 163 cu. yd. of
residual radioactive material, ranging from 6 inches to 15 inches
deep (Appendix Figure 2.1).
The difference between the original assessment and the actual
material removed is shown in Appendix Figure 2.1.
2.3 Unanticipated Items During Remedial Action
None.
2.4 Application of Supplemental Standards
Supplemental standards were not applicable to the tailings removal
activities performed on the property.
DOE ID NO.: MS-00134-MR
3.0 VERIFICATION SUMMARY
3.1 Radiological Survey Data
All survey data were acquired according to approved procedures.
3.1.1 Pre-Remedial Action Survey
A radiological survey was conducted by UNC Geotech during
October 1984, as described in the final REA, dated December
1984. Appendix Figure 2.1 shows the extent of contamination
determined during the pre-remedial assessment and identifies
the areas recommended to undergo remedial action.
3.1.2 Post-Excavation Survey
A ground-level gamma scan with a scintillometer was performed
after the removal of contamination and prior to backfilling.
Following the gamma scan, soil samples representative of the
6-inch-thick soil layer at the bottom of the excavation were
collected. The samples were blended to form composite
samples representing an average over the exterior
verification areas (Appendix Figure 2.1).
Exterior Findings: Surface exposure-rate values determined
during the gamma scan ranged from 15 /iR/h to 22 /iR/h
(Appendix Figure 2.1). The results of analyses for Ra-226 in
five composite soil samples taken from the excavated areas
ranged from 2.8 pCi/g to 7.5 pCi/g (Appendix Table 3.1).
Interior Findings: The exposure-rate values determined
during the gamma scan ranged from 18 /iR/h to 19 /zR/h for the
remediated portion, and 14 /iR/h to 17 /zR/h for the remainder
of the ground floor (Appendix Figure 2.1).
3.1.3 Radon Decay-Product Concentration (RDC) Measurement
Based on measurements representing an annual average, the RDC
was determined to be below the EPA standard (Appendix Table 3.2).
Appendix Figure 2.1 shows the measurement location on the
ground floor. The partial basement is uninhabitable.
4
DOE ID NO.: MS-00134-MR
3.2 Recommendation For Certification
Residual radioactive materials have been removed from this property
to the extent required by the EPA standards (40 CFR, Part 192,
Subpart B, Paragraph 192.12). (See Certification Data Summary
below.)
Therefore, the property located at 216 South Third East Street, in
Monticello, Utah, is recommended for certification as required by
the SFMP Program guidelines, and the appropriate record should be
documented.
Applicability
Habitable Structures
Exposure Rate:
Radon Decay-Product
Concentration:
Certification Data Summary
Standards
Shall not exceed 20 /iR/h
above background.*
Annual average shall not
exceed 0.02 WL, to the
extent practicable; and
in no case shall exceed
0.03 WL.
Survey Results
Range for the remediated
portion of the ground
floor was 18 /iR/h to
19 /iR/h and the
remainder of the
ground floor was
14 /iR/h to 17 /iR/h
(Appendix Figure 2.1).
Annual average 0.010 WL
(Appendix Table 3.2).
Land
Radium-226 Concentration
in Surface Soil:
Radium-226 Concentration
in Subsurface Soils:
Shall not exceed 5 pCi/g
above background** in
the 15-cm surface layer,
averaged over 100 m2.
Shall not exceed 15 pCi/g
above background** in any
15-cm-thick soil layer
more than 15 cm below the
surface, averaged over
100 m2.
< 5 pCi/g above
background.
The soil sample results
ranged from 2.8 pCi/g
to 7.5 pCi/g (Appendix
Table 3.3).
•The background exposure rate is approximately 18 /iR/h.
**The background radium-226 concentration is approximately 2.0 pCi/g.
DOE ID NO.: MS-00134-MR
4.0 APPENDIX
Appendix Tables:
Table 3.1 Post-Excavation Sample/Measurement Results
Table 3.2 Radon Decay-Product Concentration (RDC)
Measurement Results
Appendix Figure:
Figure 2.1 Interior and Exterior Extent of Contamination -
RADIOLOGICAL AS-BUILT
Appendix Table 3.1
Post-Excavation Sample/Measurement Results
DOE ID No.: MS-00134-MR
Address: 216 South Third East Street, Monticello. Utah
The analytical uncertainties in the table are reported at the 95-percent
confidence interval.
Exposure-Rate Soil Sample Ra-226 Potassium Thorium
Area Range (/iR/h) Ticket No. (pCi/g) (pCi/g) (pCi/g)
EXTERIOR
V-l 17-20 MAY 726 2.9+1.0 20.5+2.3 0.8+1.0
V-2 17-21 MAY 727 3.0+1.0 20.0+2.2 0.8+1.0
V-3 17 - 21 MAY 728 7.5 + 1.6 20.4 ± 2.3 0.9 + 1.0
V-4 17 - 22 MAY 729 2.8 + 1.0 19.7 + 2.2 1.0 + 1.0
V-5 18-21 MAY 730 3.1+1.0 20.4+2.2 0.8+1.0
INTERIOR
V-6 18 - 19 Not applicable
See Appendix Figure 2.1 for the verification areas.
7
Appendix Table 3.2
Radon Decay-Product Concentration (RDC) Measurement Results
DOE ID No.: MS-00134-MR
Address: 216 South Third East Street, Monticello, Utah
Instrument Type: Terradex Track EtchR Detector
Detector
Number Start Date End Date
Tracks Per
Radon
Concentration
(pCi/1)
Average
Working
Level (WL)
311321
311333
311334
01/29/86
01/29/86
01/29/86
02/18/87
02/18/87
02/18/87
16.9
14.3
14.4
2.1
1.8
1.8
0.011
0.009
0.009
Annual Average: 0.010
See Appendix Figure 2.1 for the measurement location.
PR:10/26/87
MS-00134-MR:PCR-02
REV100287
30
28
26
24
22
20
18 -
16
14
12
10
:0LD LEACH
:"' FIELD "
15 12 12
15
3
12
V-6:
18-I9i
2
0
12 RDC
14 17
19* 15
15
15
V-4 V-5
17-23 18-21
ONE STORY HOUSE
W/FARTIAL CRAWL
SPACE a BASEMENT
: x
20 : 10 : 20 40
is—1—rV
MEET :
• • • • * *
• a • • • •
V-l
17-20
V-2.:
7-2
IMWMM
V-3:
17-21!
r-
UJ
CO
r-
: Q
Mr
(A) ASSESSED AREA IDENTIFIER
(e) AVERAGE DEPTH OFASSESSEO CONTAMINAT
W%&. AREA OF ASSESSED CONTAMINANTS
12 -15 POST REMEDIAL ACTION EXPOSURE-RATE R/
' BOUNDARY OF EXCAVATION
12
V-2
15-19
(RDC)
AVERAGE EXCAVATED DEPTH FOR THE DEPC
OF CONTAMINATION
VERIFICATION SOIL SAMPLE AREA IDENTIF
AND EXCAVATION EXPOSURE-RATE RANGE
POST REMEDIAL ACTION RADON DAUGHTER
CONCENTRATION MEASUREMENT LOCATION
ASSESSED CONTAMINANTS NOT FOUND AT
TIME OF REMEDIAL ACTION
ALL DEPTHS IN INCHES
ALL EXPOSURE-RATES IN fiR/h
RADIOLOGICAL AS-BUIL
FIGURE 2.1
INTERIOR AND EXTERIOR EXTENT OF CONTAMINAT!
|.T.W».0jil^.>Saf.lWMr.fAJP/.3lh»..SurPlus facilities
• management program •« for the sole «jse of thj U.S.
: Department of Energy ahd its contractor*. It is not a land
! survey plat or aa improvement suVvey plat and is not to be
• relied <jport for- ihe establishment of fencp; btritdipg; t>r- •
) other ffrture improvement lines. •
1* i 1 4r i
NO. I 0«TC
HtlMKCt
REVISIONS
ata-MMtl
n-m. or eccuM.rt
1 UTI
Hp
JK
• V CK AC. MO. 0*TC ftCVItONt ST Cl
U.S. DEPARTMENT OF ENERGY
<S*WO JUNCTION «»t« OfflCI. COLQIUOQ
216 SOUTH 3 rd EAS
tdOWTICELLO, UTAH
UNO Geotech
Oft
•»pr
LOWW xu. MS-00134
ow6 N"3-B400-G7
75"
OAK RIDGE NATIONAL LABORATORY
OPERATED EY MARTIN MARIETTA ENERGY SYSTEMS. INC.
GRAND JUNCTION Off ICE
P. O BOX ?S67
GRAND JUNCTION. COLORADO 81502
January 22, 1990
V. E. Murphie
SFMP Program Manager
Division of Remedial Action Projects
Office of Vsste Disposal and Remedial Action
Office of Nuclear Energy
U. S. Department of Energy
MS - NE24
Washington, DC 20545
Dear Mr. Murphie:
Verification Statements for Monticello Vicinity Properties
Enclosed please find verification statements and for the following
properties in Monticello, Utah. These are the properties which vere
remediated prior to FY 1988, and therefore could not be subject to on-site
independent verification. Discrepancies vere noted by ORNL within the
remedial action completion reports during the December 19S8 Type A technical
reviews. The discrepancies have been resolved through discussions with UNC.
The properties are:
Please call Kary Vilson (FTS 326-6232) of our staff if you have any
questions regarding the general work process of this project.
CAL/MWS/tlb
cc: B. Kathis, UNC
P. Henvood, UNC
M. Landis, DOE/HQ-DFSD
D. Tor.kay, VTESTON
D. Williamson, D0E/GJP0
KS00091-RS
MS00134-MR
265 East 1st South Street
216 South 3rd East Street
Sincerely,
Craig A. Little, Ph.D.
Pollutant Assessments Group
MS-00134 216 SOUTH 3RD EAST STREET
MONTICELLO, UTAH 84535
A further review of the completion report and verbal discussion with Craig
Little of this property, I feel that an IVC verification can be made of this
property and agree with RAC's recommendation to certify it.
Reasons are because the original assessment field map and data show that
this area of interest with the elevated region was in fact not that
elevated. The HIG was only 15 iiR/h and probably should not even been
assessed to be removed in the final place. The other elevated region was in
fact removed and verified clean. After remediation the crawl space with
partial basement was gamma scanned and no elevated gamma was detected.
Therefore, we should recommend this property verified and show on record
that RDC measurements were placed in a correct place.
DOE ID NO. : MS- OP'34- - M ft. _
Property Address: 2.i£? t>Oi.itU TUlrei East 'S'hee.'t
VICINITY PROPERTY CERTIFICATION SUMMARY AND RECOMMENDATION
SUMMARY EVALUATION
Chem-Nuclear Geotech, Inc.
YES NO NOT TAKEN
U.S. Department
of Energy (DOE)
YES NO NOT TAKEN
Ra-226 is < 5 pCi/g
above background in top
15-cm layer of soil
averaged over 100 m2. [X]* [ ] [ ]
In-situ [X] Lab [ ]
Ra-226 is < 15 pCi/g
above background in any
15-cm layer of soil
more than 15 cm below
the surface averaged
over 100 m2. tX] [ ] [ ]
In-situ [ ] Lab
Interior gamma is < 20 ^R/h
above background in any
occupied or habitable
structure. f~<] [ ] [ ]
The radon decay-product
concentration in any
occupied or habitable
structure is < 0.02
working levels or, at
most, 0.03 working levels. Jx^ [ ] [ ]
Supplemental standards were
applied in accordance with
EPA standard 40 CFR 192.21. ( ] |X] [ ]
Hot spot criteria met as
outlined by U.S. DOE
guidelines for FUSRAP and
SFMP (Rev. 03/02/87). [ ] [ ] {xl
in [ ] i ]
in
[/]
[A
[ ]
[ ]
( ]
( )
[ ]
t )
( ]
[ )
[ ]
( ]
COMMENTS: *The excavations were backfilled with materials which were measured
at the source showing that the Ra-226 concentrations are in the range of
normal background. Other surface areas were verified on the basis of gamma
exposure rates which do not exceed 30-percent above normal background.
DOE ID NO. : MS- QOt54~
CHEM-NUCLEAR GEOTECH, INC., RECOMMENDATION
Based on the Chem-Nuclear Geotech, Inc., evaluation, I recommend this property
for:
[X] Certification by the Department of Energy.
[ ] Certification by the Department of Energy with the concurrence of the
Nuclear Regulatory Commission because supplemental standards were
applied per 40 CFR 192.21.
Harry A. ferry
SFMP Manager
Chem-Nuclear Geotech,
Date
Inc >
DOE EVALUATION
[X] Should be certified by the Department of Energy.
[ ] Should be certified by the Department of Energy with the concurrence
of the Nuclear Regulatory Commission because supplemental standards
were applied per 40 CFR 192.21.
SFMP Certification Official Date
Department of Energy
7/jo 9/
0£C % o 1996
PROPERTY COMPLETION REPORT
FOR
MONTICELLO
VICINITY PROPERTY REMEDIAL ACTION
FOR
DOE ID NO: MS-00075-RS
ADDRESS: 16 EAST FIFTH SOUTH STREET
MONTICELLO, UTAH 84535
MARCH 1990
Prepared for
Surplus Facilities Management Program
Division of Facilities and Site De-Commissioning
Department of Energy
by
UNC Geotech
P.O. Box 14000
Grand Junction, Colorado 81502-5504
rian Mathis / Brian Mathis
Program Manager
UNC Geotech has been granted authorization to perform remedial action under
the Surplus Facilities Management Program. Remedial action was done in
accordance with the Environmental Protection Agency (EPA) Standards for
Cleanup of Lands and Buildings Contaminated with Residual Radioactive Material
from Inactive Uranium Processing Sites, 40 CFR 192.12, 192.20-23.
MS-00075-RS.PCR-02
TABLE OF CONTENTS
Section Page
1.0 SUMMARY 1
1.1 Basis for Remedial Action 1
1.2 Criteria for Remedial Action 1
1.3 Summary of Remedial Action 2
2.0 OPERATIONS SUMMARY 3
2.1 Abstract of Remedial Action Plan 3
2.2 Previously Unidentified Contamination 3
2.3 Unanticipated Items During Remedial Action 3
2.4 Application of Supplemental Standards 3
3.0 VERIFICATION SUMMARY 4
3.1 Radiological Survey Data 4
3.1.1 Pre-Remedial Action Survey 4
3.1.2 Post-Excavation Survey 4
3.1.3 Radon Decay-Product Concentration (RDC) Measurement ... 4
3.2 Recommendation for Certification 5
Certification Data Summary 5
4.0 APPENDIX 6
i
DOE ID NO.: MS-00075-RS
1.0 SUMMARY
1.1 Basis for Remedial Action
The Monticello Vicinity Properties (MVP) project was accepted into
the Surplus Facilities Management Program (SFMP) with the primary
objective of reducing the potential hazard to the public due to
long-term exposure to low-level radioactivity associated with the
offsite mill tailings derived from the former U.S. Atomic Energy
Commission (AEC) uranium mill.
The original mill, built in 1942, was financed by the United States
Government through its agent, the Defense Plant Corporation, to
provide additional sources of vanadium needed during World War II.
Various government agencies operated the mill until 1947. The AEC
obtained the mill in 1948 and operated it through 1959 under
cost-type contracts to provide both uranium and vanadium. Mill
operations were terminated on January 1, 1960.
The mill processed approximately one million tons of ore during the
AEC operations. Throughout the operating period, tailings from the
Monticello millsite were removed from the site and used for
construction-related activities in the vicinity.
1.2 Criteria for Remedial Action
The SFMP has adopted the "Standards for Remedial Action at Inactive
Uranium Processing Sites" (40 CFR Part 192) as guidelines for all
clean-up activities under the MVP project. These standards were
prepared by the EPA to establish guidelines for the control of
tailings piles and the clean-up of buildings and open lands.
The subject property, DOE ID No. MS-00075-RS. located at 16 East
Fifth South Street, Monticello, Utah, was evaluated on the basis of
the EPA standards by the Department of Energy (DOE), which
determined that residual radioactive materials in excess of the EPA
standards were present on the property. UNC Geotech/Grand Junction
Projects Office (UNC Geotech) was notified of the inclusion of this
property into the SFMP program and authorized by the DOE to perform
remedial action as required to bring the property into conformance
with the EPA standards.
1
DOE ID NO.: MS-00075-RS
Summary of Remedial Action
DOE ID No.:
Legal Description:
Property Address:
Property Owner:
Property Category:
Inclusion Survey Contractor:
Inclusion Notification Date:
Remedial Action Contractor:
Radiological & Engineering
Assessment (REA):
Construction Subcontractor:
Pre-Construction Conference
Record:
Notice of Final Completion
Inspection:
Volume of Material
Removed:
Area Cleaned Up:
Property Completion Report
Submitted:
MS-00075-RS
Parcel Number M-10, County Plat
Book 618, Page 41, Block 3, Monticello
Townsite, City of Monticello, County of
San Juan, State of Utah
16 East Fifth South Street
Monticello, Utah 84535

Residential Simple (RS)
Not applicable; historical inclusion
by the Department of Energy
Janury 27, 1984
UNC Geotech
June 1984
Eldon Ray Contracting
P.O. Box 10
Moab, Utah
September 10, 1984
October 23, 1984
Exterior: 10 cu. yd.
Interior: 0 cu. yd.
15 m2
March 1990
DOE ID NO.: MS-00075-RS
2.0 OPERATIONS SUMMARY
2.1 Abstract of Remedial Action Plan
The remedial action plan involved removal of exterior contamination
(Appendix Figure 2.1). Once excavation was complete, the affected
areas were resurveyed for possible remaining contamination and, upon
attaining satisfactory results, were backfilled with uncontaminated
material. The property was restored to a condition comparable to
that which existed prior to remedial action activities.
2.2 Previously Unidentified Contamination
The original radiological assessment identified 5 cu. yd. of tailings,
6 inches deep, within the property. The remedial action process
included the removal of 10 cu. yd. of residual radioactive material,
ranging from 16 inches to 18 inches deep (Appendix Figure 2.1).
The difference between the original assessment and the actual
material removed is shown in Appendix Figure 2.1.
2.3 Unanticipated Items During Remedial Action
None.
2.4 Application of Supplemental Standards
Supplemental standards were not applicable to the tailings removal
activities performed on the property.
3
DOE ID NO.: MS-00075-RS
3.0 VERIFICATION SUMMARY
3.1 Radiological Survey Data
All survey data were acquired according to approved procedures.
3.1.1 Pre-Remedial Action Survey
A radiological survey was conducted by UNC Geotech during
March 1984, as described in the final REA, dated June 1984.
Appendix Figure 2.1 shows the extent of contamination
determined during the pre-remedial assessment and identifies
the areas recommended to undergo remedial action.
3.1.2 Post-Excavation Survey
A ground-level gamma scan with a scintillometer was performed
after the removal of contamination and prior to backfilling.
Following the gamma scan, soil samples representative of the
6-inch-thick soil layer at the bottom of the excavation were
collected (Appendix Figure 2.1).
Exterior Findings: Surface exposure-rate values determined
during the gamma scan ranged from .9 fiR/h to 15 (iR/h (Appendix
Figure 2.1). The results of analyses for Ra-226 in two
individual soil samples taken from the excavated areas were
2.0 pCi/g and 5.1 pCi/g (Appendix Table 3.1).
3.1.3 Radon Decay-Product Concentration (RDC) Measurement
Based on measurements representing an annual average, the RDC
was determined to be below the EPA standard (Appendix Table 3.2).
Appendix Figure 2.1 shows the measurement location on the
ground floor (the lowest habitable level of the structure).
4
DOE ID NO.: MS-00075-RS
3.2 Recommendation For Certification
Residual radioactive materials have been removed from this property
to the extent required by the EPA standards (40 CFR, Part 192,
Subpart B, Paragraph 192.12). (See Certification Data Summary
below.)
Therefore, the property located at 16 East Fifth South Street, in
Monticello, Utah, is recommended for certification as required by
the SFMP Program guidelines, and the appropriate record should be
documented.
Certification Data Summary
Applicability
Habitable Structures
Exposure Rate:
Radon Decay-Product
Concentration:
Standards
Shall not exceed 20 (iR/h
above background.*
Annual average shall not
exceed 0.02 WL, to the
extent practicable; and
in no case shall exceed
0.03 WL.
Survey Results
Range for the ground
floor is 10 (iR/h to
12 uR/h (Appendix
Figure 2.1).
Annual average 0.0103 WL
(Appendix Table 3.2).
Land
Radium-226 Concentration
in Surface Soil:
Radium-226 Concentration
in Subsurface Soils:
Shall not exceed 5 pCi/g
above background** in
the 15-cm surface layer,
averaged over 100 m2.
Shall not exceed 15 pCi/g
above background** in any
15-cm-thick soil layer
more than 15 cm below the
surface, averaged over
100 m2.
< 5 pCi/g above
background.
The soil sample
results were 2.0 pCi/g
and 5.1 pCi/g (Appendix
Table 3.1).
*The background exposure rate is approximately 12 [iR/h.
**The background radium-226 concentration is approximately 2.0 pCi/g.
5
DOE ID NO.: MS-00075-RS
4.0 APPENDIX
Appendix Table:
Table 3.1 Post-Excavation Sample/Measurement Results
Table 3.2 Radon Decay-Product Concentration (RDC) Measurement
Results
Appendix Figure:
Figure 2.1 Exterior Extent of Contamination - RADIOLOGICAL
AS-BUILT
6
Appendix Table 3.1
Post-Excavation Sample/Measurement Results
DOE ID No.: MS-00075-RS
Address: 16 East Fifth South Steet, Monticello, Utah
The analytical uncertainties in the table are reported at the 95-percent
confidence interval.
Exposure-Rate Soil Sample Ra-226 Potassium Thorium
Area Range {(iR/h) Ticket No. (pCi/g) (pCi/g) (pCi/g)
V-l* 11 - 14 MMU-029 5.1 + 1.4 26.0 + 2.5 1.0 + 0.2
V-l** 11 - 14 MMU 030 2.0+1.0 25.1+1.7 1.0+0.2
See Appendix Figure 2.1 for the verification areas.
•Individual soil sample location Number 1 taken at grid coordinates 270206.
••Individual soil sample location Number 2 taken at grid coordinates 312240.
7
32
30
10
'.8
!6
0
8
T
Y
12 14 16 18
i—i—i—i—i—i—i—r
20 22
i—i—I—r
24
i—r
26 28
i—i—i—r
30
~i—r
32 34
1 I T
36
T
38 40
i—r T
42
12-15
13-14
FA
12
QJ o.. V-2 HOUSE 9-1 10-14 15-19 18
RDC
1 10-* 12 55 • -t-rV -i^-— RDC
\ © 2;
18
V-l ALL 9-15 9-12 11-14 ALL
16
9-14 H©(2
ORE:ROCKS
181
11-14
LEGEND
ASSESSED AREA IDENTIFIER
AVERAGE DEPTH OF ASSESSED CONTAMINATION
AREA OF ASSESSED CONTAMINANTS
POST REMEDIAL ACTION EXPOSURE-RATE RANGE
BOUNDARY OF EXCAVATION
AVERAGE EXCAVATED DEPTH FOR THE DEPOSIT
OF CONTAMINATION
VERIFICATION SOIL SAMPLE AREA IDENTIFIER
AND EXCAVATION EXPOSURE-RATE RANGE
POST REMEDIAL ACTION RADON DAUGHTER
CONCENTRATION MEASUREMENT LOCATION
ASSESSED CONTAMINANTS NOT FOUND AT
TIME OF REMEDIAL ACTION
DEPTHS IN INCHES
EXPOSURE-RATES IN /i R/h
SOIL SAMPLE LOCATION AND NUMBER
• 3(
21
2(
2'
22
2C
18
RADIOLOGICAL AS-BUILT
FIGURE 2.I
16
:jV.
k
20 10
I n i>w,|«ra?tff,s^|jK
EXTERIOR EXTENT OF CONTAMINATION
20 40
1 n
J L
1 o
J I L FEET
•This drawing, prepared for the Surplus Facilities
Management Program, is for the sole use of the U.S.
Department of Energy and its contractors. It is not a land
survey plat or an Improvement survey plat and is not to be
'relied upon for the establishment of fence, building, or
other future improvement lines.
1 C
_L -L _L _L _L _L
*tlOt«£ NO or occu**«rs
•0" • •! HOCMCE MRS /*•
•JSTauHtNT HO
Vr
B« CK A E APP *iO OiT£ Sr CK *C APP
14
U.S. DEPARTMENT OF ENERGY
G*ANO JUNCTION ABE* OFFICE. COLOftAOO
"0J P/TI7-U
I6 EAST 5TH SOUTHST.
' MONTICELLO , UTAH
UNC Geotech
o*rt A#»MO**I ftoc
LOCATION MS-00075 -RS
'3-33/S-G'l 5MT / o,S
12
10
OAK RIDGE NATIONAL LABORATORY
OPERATED BY MARTIN MARIETTA ENERGY SYSTEMS. INC.
GRAND JUNCTION OFFICE
P. 0. BOX 2567
GRAND JUNCTION. COLORADOS1502
March 14, 1990
W. E. Murphie
SFMP Program Manager
Division of Facility and Site
Decommissioning Projects
Office of Nuclear Energy
U.S. Department of Energy
MS - NE-20
Washington, DC 20545
Dear Mr. Murphie:
Verification Statement for Monticello Vicinity Property MS00075
Enclosed please find the verification statement and amended property
completion report for MS00075, 16 E. 5th South Street, in Monticello, Utah.
This property was remediated prior to FY 1988, and was subject to document
review by the IVC. The review was delayed for RDC results to be
incorporated into the completion report, which are presently included in the
revised format.
MJW/mjw
cc: B. Berven, ORNL
M. Landis, DOE/HQ-DFSD
B. Mathis, UNC
D. Tonkay, RFW
J. Nelson, RFW
J. Wagoner, DOE/HQ-DFSD
D. Williamson, DOE/GJPO
Sincerely,
Mary J. Wilson
Pollutant Assessments Group
VERIFICATION STATEMENT FOR MS0O075-RS, 16 EAST 5TH SOUTH STREET
An independent assessment of remedial action activities at 16 East
5th South Street, Monticello, Utah, has been accomplished by the ORNL
Pollutant Assessments Group (PAG). The purpose of the assessment is to
verify the data supporting the adequacy of the remedial action and to
confirm the site's compliance with DOE guidelines. The assessment included
reviews of data provided in the post-remedial action report, and remedial
action plans and activities as well as verification analysis of archived
post-remedial action soil samples.
A review of procedures and techniques suggests that the procedures used
to develop the data presented in the post-remedial action report are
adequate to characterize the final radiological condition of 16 East 5th
South Street, Monticello, Utah, and that based on the data in the post-
remedial action reports, the site conforms to the remedial action criteria
for the Monticello Vicinity Properties (MVP).
PROPERTY COMPLETION REPORT
FOR
MONTICELLO
VICINITY PROPERTY REMEDIAL ACTION
FOR
DOE ID NO: MS-00143-RS
ADDRESS: 600 EAST CEMETERY ROAD
MONTICELLO, UTAH 84535
SEPTEMBER 1990
Prepared for
Surplus Facilities Management Program
Division of Facilities and Site Decommissioning
Department of Energy
by
UNC Geotech
P.O. Box 14000
Grand Junction, Colorado 81502-5504
Harry A. Perry
Program Manager
UNC Geotech has been granted authorization to perform remedial action under
the Surplus Facilities Management Program. Remedial action was done in
accordance with the Environmental Protection Agency (EPA) Standards for
Cleanup of Lands and Buildings Contaminated with Residual Radioactive Material
from Inactive Uranium Processing Sites, 40 CFR 192.12, 192.20-23.
DOE ID NO. : MS-00143-RS-.PCR-MS 06
TABLE OF CONTENTS
Section Page
1.0 SUMMARY 1
1.1 Basis for Remedial Action 1
1.2 Criteria for Remedial Action 1
1.3 Summary of Remedial Action 2
2.0 OPERATIONS SUMMARY 3
2.1 Abstract of Remedial Action Plan 3
2.2 Previously Unidentified Contamination 3
2.3 Unanticipated Items During Remedial Action 3
2.4 Application of Supplemental Standards .... 3
3.0 VERIFICATION SUMMARY 4
3.1 Radiological Survey Data 4
3.1.1 Pre-Remedial Action Survey 4
3.1.2 Post-Excavation Survey 4
3.1.3 Radon Decay-Product Concentration (RDC) Measurement ... 4
3.2 Recommendation for Certification . 5
Certification Data Summary 5
4.0 APPENDIX 6
i
DOE ID NO.: MS-00143-RS
1.0 SUMMARY
1.1 Basis for Remedial Action
The Monticello Vicinity Properties (MVP) project was accepted into
the Surplus Facilities Management Program (SFMP) with the primary
objective of reducing the potential hazard to the public due to
long-term exposure to low-level radioactivity associated with the
offsite mill tailings derived from the former U.S. Atomic Energy
Commission (AEC) uranium mill.
The original mill, built in 1942, was financed by the United States
Government through its agent, the Defense Plant Corporation, to
provide additional sources of vanadium needed during World War II.
Various government agencies operated the mill until 1947. The AEC
obtained the mill in 1948 and operated it through 1959 under
cost-type contracts to provide both uranium and vanadium. Mill
operations were terminated on January 1, 1960.
The mill processed approximately one million tons of ore during the
AEC operations. Throughout the operating period, tailings from the
Monticello millsite were removed from the site and used for
construction-related activities in the vicinity.
1.2 Criteria for Remedial Action
The SFMP has adopted the "Standards for Remedial Action at Inactive
Uranium Processing Sites" (40 CFR Part 192) as guidelines for all
cleanup activities under the MVP project. These standards were
prepared by the Environmental Protection Agency (EPA) to establish
guidelines for the control of tailings piles and the cleanup of
buildings and open lands.
This property was evaluated on the basis of the EPA standards by the
Department of Energy (DOE) which determined that the property
contained residual radioactive material which exceeded the EPA
standards. UNC Geotech/Grand Junction Projects Office (UNC Geotech)
was notified of the inclusion of this property into the SFMP and
authorized by the DOE to perform remedial action as required to
bring the property into conformance with the EPA standards.
1
DOE ID NO.: MS-00143-RS
1.3 Summary of Remedial Action
DOE ID No.:
Legal Description:
Property Address:
Property Owners:
Property Category:
Inclusion Survey Contractor:
Inclusion Notification Date:
Remedial Action Contractor:
Radiological & Engineering
Assessment (REA):
Construction Subcontractor:
Pre-Construction Conference
Record:
Notice of Final Completion
Inspection:
Volume of Material
Removed:
Area Cleaned Up:
Property Completion Report
Submitted:
MS-00143-RS
Parcel Number M-600, NW4 Section 31,
T33S., R24E., Salt Lake Meridian; City
of Monticello, County of San Juan,
State of Utah
600 East Cemetery Road
Monticello, Utah 84535

Residential Simple (RS)
Not applicable; historical inclusion
by the Department of Energy
June 8, 1984-/
UNC Geotech
May 23, 1986
Sonderegger Construction
P. O. Box 6
Monticello, Utah
July 9, 1987'/
August 13, 1987 ^
Exterior: 432 cu. yd.
Interior: 0 cu. yd.
1,460 m2
September 1990
2
DOE ID NO.: MS-00143-RS
2.0 OPERATIONS SUMMARY
2.1 Abstract of Remedial Action Plan
The remedial action plan involved removal of exterior contamination
(Appendix Figure 2.1). Once excavation was complete, the affected
areas were resurveyed for possible remaining contamination and, upon
attaining satisfactory results, were backfilled with uncontaminated
material. The property was restored to a condition comparable to
that which existed prior to remedial action activities.
2.2 Previously Unidentified Contamination
The original radiological assessment identified 406 cu. yd. of
tailings, from 6 inches to 27 inches deep, within the property. The
remedial action process included the removal of 432 cu. yd. of
residual radioactive material, ranging from 6 inches to 14 inches
deep (Appendix Figure 2.1).
The difference between the original assessment and the actual
material removed is shown in Appendix Figure 2.1.
2.3 Unanticipated Items During Remedial Action
None.
2.4 Application of Supplemental Standards
Supplemental standards were not applicable to the tailings removal
activities performed on the property.
3
DOE ID NO.: MS-00143-RS
3.0 VERIFICATION SUMMARY
3.1 Radiological Survey Data
All survey data were acquired according to approved procedures.
3.1.1 Pre-Remedial Action Survey
A radiological survey was conducted by UNC Geotech during
October 1985. Additional data were collected by UNC Geotech
during January 1986, as described in the final REA, dated May
1986. Appendix Figure 2.1 shows the extent of contamination
determined during the pre-remedial assessment and identifies
the areas recommended to undergo remedial action.
3.1.2 Post-Excavation Survey
A ground-level gamma scan with a scintillometer was performed
after the removal of contamination and prior to backfilling.
Following the gamma scan, soil samples representative of the
6-inch-thick soil layer at the bottom of the excavation were
collected. The samples were blended to form composite
samples representing an average over the verification areas
(Appendix Figure 2.1).
Exterior Findings: Surface exposure-rate value's, determined
during the gamma scan, ranged from 13 pR/h to 26 pR/h
(Appendix Figure 2.1). The results of analyses for Ra-226 in
13 composite soil samples taken from the excavated areas
ranged from 2.4 pCi/g to 11.7 pCi/g (Appendix Table 3.1).
3.1.3 Radon Decay-Product Concentration (RDC) Measurement
Based on measurements representing an annual average, the RDC
was determined to be below the EPA standard (Appendix
Table 3.2). Appendix Figure 2.1 shows the measurement
location on the ground floor (the lowest habitable level of
the structure).
4
DOE ID NO.: MS-00143-RS
3.2 Recommendation for Certification
Residual radioactive materials have been removed from this property
to the extent required by the EPA standards (40 CFR 192.12,
192.20-23). (See Certification Data Summary below.)
Therefore, the property located at 600 East Cemetery Road, in
Monticello, Utah, is recommended for certification as required by
the SFMP guidelines, and the appropriate record should be
documented.
Applicability
Habitable Structures
Exposure Rate:
Radon Decay-Product
Concentration:
Certification Data Summary
Standards
Shall not exceed 20 uR/h
above background.*
Annual average shall not
exceed 0.02 WL, to the
extent practicable, and
in no case shall exceed
0.03 WL.
Survey Results
Range for the ground
floor was 11 uR/h to
16 uR/h (Appendix
Figure 2.1).
Annual average 0.0080 WL
(Appendix Table 3.2).
Land
Radium-226 Concentration
in Surface Soil:
Radium-226 Concentration
in Subsurface Soils:
Shall not exceed 5 pCi/g
above background** in
the 15-cm surface layer,
averaged over 100 m2.
Shall not exceed 15 pCi/g
above background** in any
15-cm-thick soil layer
more than 15 cm below the
surface, averaged over
100 m2.
< 5 pCi/g above
background.
The soil sample
results ranged from
2.4 pCi/g to 11.7 pCi/g
(Appendix Table 3.1).
*The background exposure rate is approximately 16 uR/h.
**The background radium-226 concentration is approximately 2.0 pCi/g.
5
DOE ID NO.: MS-00143-RS
4.0 APPENDIX
Appendix Tables:
Table 3.1 Post-Excavation Sample/Measurement Results
Table 3.2 Radon Decay-Product Concentration (RDC)
Measurement Results
Appendix Figure:
Figure 2.1 Exterior Extent of Contamination - RADIOLOGICAL
AS-BUILT
6
Appendix Table 3.1
Post-Excavation Sample/Measurement Results
DOE ID No.: MS-00143-RS
Address: 600 East Cemetery Road, Monticello, Utah
The analytical uncertainties in the table are reported at the 95-percent
confidence interval. A question mark (?) indicates that the analysis is
semiquantitative because of a low count rate.
Exposure-Rate Soil Sample Ra-226 Potassium Thorium
Area Range (uR/h) Ticket No. (pCi/g) (pCi/g) (pCi/g)
V-l 15 - 17 MNF 601 2.4 + 0.5 14.4 + 8.0 1.0 + 0.4
V-2 15-21 MNF 602 4.7 + 0.8 19.5 + 8.2 1.0 + 0.4
V-3 16 - 22 MNF 603 11.7 + 1.8 16.9 + 8.6 0.9 + 0.4
V-4 17 - 25 MNF 604 6.9 + 1.1 14.6 + 7.8 1.2 + 0.4
V-5 18 - 26 MNF 605 7.4 + 1.2 16.3 + 8.3 0.8 + 0.4
V-6 15 - 26 MNF 606 5.4 + 0.9 14.8 + 7.9 1.0 + 0.4
V-7 13 - 18 MNF 607 6.4 + 1.0 13.8 + 8.0 0.8 + 0.4
V-8 15 - 20 MNF 608 3.4 + 0.6 17.9 + 8.4 ?0.6 + 0.4
V-9 14 - 20 MNF 609 3.7 + 0.6 15.8 + 8.5 1.0 + 0.4
V-10 14 - 25 MNF 610 4.7 + 0.8 12.7 + 8.2 1.0 + 0.4
V-ll 15 - 21 MNF 611 3.8 + 0.7 14.5 + 8.4 0.8 + 0.4
V-12 18 - 23 MNF 612 7.1+1.1 16.4+9.0 1.1+0.5
V-13 18 - 21 MNF 613 10.2 + 1.6 15.8 + 9.0 0.8 + 0.5
See Appendix Figure 2.1 for the verification areas.
7
Appendix Table 3.2
Radon Decay-Product Concentration (RDC) Measurement Results
DOE ID No.: MS-00143-RS
Address: 600 East Cemetery Road, Monticello, Utah
Instrument Type: Terradex Radtrak® Detector
Radon Average
Detector Tracks Per Concentration Working
Number Start Date End Date mm2 (pCi/1) Level (WL)
1255931 06-27-89
1255901 06-27-89
1254123 06-27-89
05-29-90 15.0
05-29-90 13.0
05-29-90 13.6
1.73 0.0087
1.50 0.0075
1.58 0.0079
Annual Average: 0.0080
See Appendix Figure 2.1 for the measurement location.
RLD-VPF:09-04-90
MS-00143-RS:PCR-MS 06
REV 09/18/89
8
to 18 20
i—i—i—i—i—i—i—i—r
22
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24 26 28
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30 32 34 $6 38 40
T—i—i—i—i—i—T—\—i—i—i—r
0 —
:8 ~
16 —
'.4
EAST! CEMEfERY ROAD
i i "I"'"
:2
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V-13 V-l V-ll
15-21 15-17 18-21 35*
liii
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AY 6 SHE
V-5
18-26
V-9
14-20 1
This drawing, prepared for the Surplus Facilities
Management Program, is for the sole use of the U.S.
Department of Energy and its contractors. It is not a land
survey plat or an improvement survey plat and is not to be
relied upon for the establishment of fence, building, or
other future improvement lines.
• 40 20 : IO : 0 : 20
BEET
i
- 28
1EGENJ2
ALL DEPTHS IN INCHES
_ ALL EXPOSURE-RATES IN n R/h
(A) ASSESSED AREA IDENTIFIER
AVERAGE DEPTH OF ASSESSED CONTAMINATION
AREA OF ASSESSED CONTAMINANTS
12-15 POST REMEDIAL ACTION EXPOSURE—RATE RANGE
BOUNDARY OF EXCAVATION
AVERAGE EXCAVATED DEPTH FOR THE DEPOSIT
OF CONTAMINATION
V-1J VERIFICATION SOIL SAMPLE AREA IDENTIFIER
|l6-17f AND EXCAVATION EXPOSURE—RATE RANGE
fBnr, POST REMEDIAL ACTION RADON DECAY-PRODUCT
[W CONCENTRATION MEASUREMENT LOCATION
ASSESSED CONTAMINANTS NOT FOUND AT
TIME OF REMEDIAL ACTION
32
30
26
24
22
20
18
iRADIOLOGICAL AS-BUILT
FIGURE 2.1
EXTERIOR EXTENT OF CONTAMINATION
-d 16
U.S. DEPARTMENT OF ENERGY
S»**ffl JUWCTlON Amt* OMtCg, C0t0»*00
J I J I L
600 EAST CEMETERY ROAD
MONTICELLO, UTAH
L l l i i UNC Geotech
|LOC*TtOM NO
•Waovsu oott
MS-00I43- RS
lowt l,03-B429-65 ,»T i o> I
14
12
10
10 12 14 16 TS 20 22 24 26 28 30 32 34 36 38 40 42
OAK RIDGE NATIONAL LABORATORY GRAND JUNCTION OFFICE
P. 0. BOX 2567
GRAND JUNCTION. COLORADO 81502 OPERATED BY MARTIN MARIETTA ENERGY SYSTEMS. INC.
February 21, 1991
W. E. Murphie
Chief, Decontamination & Decommissioning Branch
Division of Eastern Area Programs
Office of Environmental Restoration
and Waste Management
U.S. Department of Energy (EM-423)
Washington, DC 20545
Dear Mr. Murphie:
Resubmittal of Verification Statements for Monticello Vicinity Properties
Enclosed please find the verification statements for:
These properties were subject to Type A verification (completion report
review and confirmatory analysis). The official IVC reports are currently
in publication.
MJW/injw
cc: B. A. Berven, ORNL
D. N. Mackenzie, RFW
H. A. Perry, Geotech
I. I. Stewart, Geotech
M. K. Tucker, D0E/GJP0
MS00161-RS 249 East 2nd South Street
MS00143-RS 544 East Cemetery Road
Sincerely,
Mary J. Wd/Lson
Pollutant Assessments Group
VERIFICATION STATEMENT FOR MS00143-RS, 544 EAST CEMETERY ROAD
An independent assessment of remedial action activities at 544 East
Cemetery Road, Monticello, Utah, has been accomplished by the ORNL Pollutant
Assessments Center (PAC). The purpose of the assessment is to verify the
data supporting the adequacy of the remedial action and to confirm the
site's compliance with DOE guidelines. The assessment included reviews of
data provided in the post-remedial action report, and remedial action plans
and activities as well as verification analysis of archived post-remedial
action soil samples.
A review of procedures and techniques suggests that the procedures used
to develop the data presented in the post-remedial action report are
adequate to characterize the final radiological condition of 544 East
Cemetery Road, Monticello, Utah, and that based on the data in the post-
remedial action reports, the site conforms to the remedial action criteria
for the Monticello Vicinity Properties (MVP).
DOE ID NO. : MS- QO ( 45 ~ ^5
Property Address: (gQO £asr~ Ceme-fe,Tt< £oA(j
VICINITY PROPERTY CERTIFICATION SUMMARY AND RECOMMENDATION
SUMMARY EVALUATION
U.S. Department
Chem-Nuclear Geotech, Inc. of Energy (DOE)
YES NO NOT TAKEN YES NO NOT TAKEN
Ra-226 is < 5 pCi/g
above background in top
15-cm layer of soil
averaged over 100 m2.
In-sitd [X] Lab [ ]
Ra-226 is < 15 pCi/g
above background in any
15-cm layer of soil
more than 15 cm below
the surface averaged
over 100 m2.
In-situ [ ] Lab £x]
Interior gamma is < 20 pR/h
above background in any
occupied or habitable
structure.
The radon decay-product
concentration in any
occupied or habitable
structure is < 0.02
working levels or, at
most, 0!.03 working levels. •§><] [ ]
Supplemental standards were
applied in accordance with
EPA standard 40 CFR 192.21.
Hot spot criteria met as
outlined by U.S. DOE
guidelines for FUSRAP and
SFMP (Rev. 03/02/87).
COMMENTS: *The excavations were backfilled with materials which were measured
at the source showing that the Ra-226 concentrations are in the range of
normal background. Other surface areas were verified on the basis of gamma
exposure rates which do not exceed 30-percent above normal background.
[X]' t ] ( ] [ ] [ ]
Ex) [ ] [ ] [ ] [ )
[ ] [ 1 [ ] [ ]
[ ] [ )
[ ) CX] [
[ ] t ] Lx]
[ ] [Jf [ ]
[ ] [ ] [/)
DOE ID NO. : MS- QO I ^ 3 ~
CHEM-NUCLEAR GEOTECH, INC., RECOMMENDATION
Based on the Chem-Nuclear Geotech, Inc., evaluation, I recommend this property
for:
[X] Certification by the Department of Energy.
[ ] Certification by the Department of Energy with the concurrence of the
Nuclear Regulatory Commission because supplemental standards were
applied per 40 CFR 192.21.
7- A? f
Harry AV ^Perx^ * f^) Date
SFMP Manager/
Chem-Nuclear Geotech, Inc.
DOE EVALUATION
[)Q Should be certified by the Department of Energy.
[ ] Should be certified by the Department of Energy with the concurrence
of the Nuclear Regulatory Commission because supplemental standards
were applied per 40 CFR 192.21.
: nffj „i -, i r,-.x.„ * / SFMP Certification Official Date
Department of Energy
PROPERTY COMPLETION REPORT
FOR
MONTICELLO
VICINITY PROPERTY REMEDIAL ACTION
FOR
DOE ID NO: MS-00161-RS
ADDRESS: 249 EAST 200 SOUTH STREET
MONTICELLO, UTAH 84535
SEPTEMBER 1990
Prepared for
Surplus Facilities Management Program
Division of Facilities and Site Decommissioning
Department of Energy
by
UNC Geotech
P.O. Box 14000
Grand Junction, Colorado 81502-5504
Harry A. Perry
Program Manager
UNC Geotech has been granted authorization to perform remedial action under
the Surplus Facilities Management Program. Remedial action was done in
accordance with the Environmental Protection Agency (EPA) Standards for
Cleanup of Lands and Buildings Contaminated with Residual Radioactive Material
from Inactive Uranium Processing Sites, 40 CFR 192.12, 192.20-23.
DOE ID NO.: MS-00161-RS:PCR-MS 06
TABLE OF CONTENTS
Section Page
1.0 SUMMARY 1
1.1 Basis for Remedial Action 1
1.2 Criteria for Remedial Action 1
1.3 Summary of Remedial Action 2
2.0 OPERATIONS SUMMARY '. . . 3
2.1 Abstract of Remedial Action Plan 3
2.2 Previously Unidentified Contamination 3
2.3 Unanticipated Items During Remedial Action 3
2.4 Application of Supplemental Standards .... 3
3.0 VERIFICATION SUMMARY 4
3.1 Radiological Survey Data 4
3.1.1 Pre-Remedial Action Survey 4
3.1.2 Post-Excavation Survey 4
3.1.3 Radon Decay-Product Concentration (RDC) Measurement ... 4
3.2 Recommendation for Certification 5
Certification Data Summary 5
4.0 APPENDIX 6
i
DOE ID NO.: MS-00161-RS
1.0 SUMMARY
1.1 Basis for Remedial Action
The Monticello Vicinity Properties (MVP) project was accepted into
the Surplus Facilities Management Program (SFMP) with the primary
objective of reducing the potential hazard to the public due to
long-term exposure to low-level radioactivity associated with the
offsite mill tailings derived from the former U.S. Atomic Energy
Commission (AEC) uranium mill.
The original mill, built in 1942, was financed by the United States
Government through its agent, the Defense Plant Corporation, to
provide additional sources of vanadium needed during World War II.
Various government agencies operated the mill until 1947. The AEC
obtained the mill in 1948 and operated it through 1959 under
cost-type contracts to provide both uranium and vanadium. Mill
operations were terminated on January 1, 1960.
The mill processed approximately one million tons of ore during the
AEC operations. Throughout the operating period, tailings from the
Monticello millsite were removed from the site and used for
construction-related activities in the vicinity.
1.2 Criteria for Remedial Action
The SFMP has adopted the "Standards for Remedial Action at Inactive
Uranium Processing Sites" (40 CFR Part 192) as guidelines for all
cleanup activities under the MVP project. These standards were
prepared by the EPA to establish guidelines for the control of
tailings piles and the cleanup of buildings and open lands.
This property was evaluated on the basis of the EPA standards by the
Department of Energy (DOE), which determined that the property
contained residual radioactive material which exceeded the EPA
standards. UNC Geotech/Grand Junction Projects Office (UNC Geotech)
was notified of the inclusion of this property into the SFMP and
authorized by the DOE to perform remedial action as required to
bring the property into conformance with the EPA standards.
1
DOE ID NO.: MS-00161-RS
1.3 Summary of Remedial Action
DOE ID No.:
Legal Description:
Property Address:
Property Owners:
Property Category:
Inclusion Survey Contractor:
Inclusion Notification Date:
Remedial Action Contractor:
Radiological & Engineering
Assessment (REA):
Construction Subcontractor:
Pre-Construction Conference
Record:
Notice of Final Completion
Inspection:
Volume of Material
Removed:
Area Cleaned Up:
Property Completion Report
Submitted:
MS-00161-RS
M-161-2, block 20, west 1/2 west 1/2
Lot 1, east 1/2 east 1/2 Lot 2, City of
Monticello, County of San Juan, State
of Utah
249 East 200 South Street
Monticello, Utah 84535

Residential Simple (RS)
Not applicable; inclusion by the
Department of Energy
May 22, 1987
UNC Geotech
November 18, 1987
Crowley Construction, Inc.
East Route
Monticello, Utah
August 18, 1988
September 30, 1988
Exterior: 2&t-~C;u. yd.
Interior: 0 cu. yd.
921
September 1990
2
DOE ID NO.: MS-00161-RS
2.0 OPERATIONS SUMMARY
2.1 Abstract of Remedial Action Plan
The remedial action plan involved removal of exterior contamination
(Appendix Figure 2.1). Once excavation was complete, the affected
areas were resurveyed for possible remaining contamination and, upon
attaining satisfactory results, were backfilled with uncontaminated
material. The property was restored to a condition comparable to
that which existed prior to remedial action activities.
2.2 Previously Unidentified Contamination
The original radiological assessment identified 210 cu. yd. of
tailings, 6 inches to 9 inches deep, within the property. The
remedial action process included the removal of 367 cu. yd. of
residual radioactive material, 12 inches deep (Appendix Figure 2.1).
The difference between the original assessment and the actual
material removed is shown in Appendix Figure 2.1.
2.3 Unanticipated Items During Remedial Action
None.
2.4 Application of Supplemental Standards
Supplemental standards were not applicable to the tailings removal
activities performed on the property.
3
DOE ID NO.: MS-00161-RS
3.0 VERIFICATION SUMMARY
3.1 Radiological Survey Data
All survey data were acquired according to approved procedures.
3.1.1 Pre-Remedial Action Survey
A radiological survey was conducted by UNC Geotech during
August 1987, as described in the final REA, dated November
1987. Appendix Figure 2.1 shows the extent of contamination
determined during the pre-remedial assessment and identifies
the areas recommended to undergo remedial action.
3.1.2 Post-Excavation Survey
A ground-level gamma scan with a scintillometer was performed
after the removal of contamination and prior to backfilling.
Following the gamma scan, soil samples representative of the
6-inch-thick soil layer at the bottom of the excavation were
collected. The samples were blended to form composite
samples representing an average over the verification areas
(Appendix Figure 2.1).
Exterior Findings: Surface exposure-rate values, determined
during the gamma scan, ranged from 13 uR/h to 18 pR/h
(Appendix Figure 2.1). The results of analyses for Ra-226 in
eight composite soil samples taken from the excavated areas
ranged from 1.8 pCi/g to 4.7 pCi/g (Appendix Table 3.1).
3.1.3 Radon Decay-Product Concentration (RDC) Measurement
Based on measurements representing an annual average, the RDC
was determined to be below the EPA standard (Appendix Table
3.2). The measurement was taken in the basement (the lowest
habitable level of the structure).
4
DOE ID NO.: MS-00161-RS
3.2 Recommendation for Certification
Residual radioactive materials have been removed from this property
to the extent required by the EPA standards (40 CFR 192.12,
192.20-23). (See Certification Data Summary below.)
Therefore, the property located at 249 East 200 South Street, in
Monticello, Utah, is recommended for certification as required by
the SFMP guidelines, and the appropriate record should be
documented.
Applicability
Habitable Structures
Exposure Rate:
Certification Data Summary
Standards
Shall not exceed 20 uR/h
above background.*
Survey Results
Range for the basement
was 12 uR/h to 14 uR/h
(Appendix Figure 2.1).
Radon Decay-Product
Concentration:
Annual average shall not
exceed 0.02 WL, to the
extent practicable, and
in no case shall exceed
0.03 WL.
Annual average
0.0156 WL (Appendix
Table 3.2).
Land
Radium-226 Concentration
in Surface Soil:
Radium-226 Concentration
in Subsurface Soils:
Shall not exceed 5 pCi/g
above background** in
the 15-cm surface layer,
averaged over 100 m2.
Shall not exceed 15 pCi/g
above background** in any
15-cm-thick soil layer
more than 15 cm below the
surface, averaged over
100 m2.
< 5 pCi/g above
background.
The soil sample
results ranged from
1.8 pCi/g to 4.7 pCi/g
(Appendix Table 3.1).
*The background exposure rate is approximately 15 uR/h.
**The background radium-226 concentration is approximately 2.0 pCi/g.
5
DOE ID NO.: MS-00161-RS
4.0 APPENDIX
Appendix Tables:
Table 3.1 Post-Excavation Sample/Measurement Results
Table 3.2 Radon Decay-Product Concentration (RDC)
Measurement Results
Appendix Figure:
Figure 2.1 Exterior Extent of Contamination - RADIOLOGICAL
AS-BUILT
6
Appendix Table 3.1
Post-Excavation Sample/Measurement Results
DOE ID No.: MS-00161-RS
Address: 249 East 200 South Street, Monticello, Utah
The analytical uncertainties in the table are reported at the 95-percent
confidence interval.
Exposure-Rate Soil Sample Ra-226 Potassium Thorium
Area Range (uR/h) Ticket No. (pCi/g) (pCi/g) (pCi/g)
V-l 14-17 MNK 676 2.5 + 0.4 18.9 + 3.6 1.1 + 0.3
V-2 13 - 18 MNK 677 1.8 + 0.3 21.0 + 3.9 0.8 + 0.2
V-3 13 - 16 MNK 678 1.9 + 0.3 20.1 + 3.7 1.3 + 0.3
V-4 14 - 18 MNK 679 2.6 + 0.4 18.5 + 3.5 0.7 + 0.2
V-5 14 - 18 MNK 680 3.8 + 0.6 18.3 + 3.5 1.5 + 0.3
V-6 13 - 17 MNK 681 1.9 + 0.3 18.4 + 3.5 1.0 + 0.3
V-7 14 - 17 MNK 682 4.3 + 0.7 18.8 + 3.6 1.1 + 0.3
V-8 15 - 18 MNK 683 4.7 + 0.7 20.6 + 3.7 1.1 + 0.3
See Appendix Figure 2.1 for the verification areas.
7
Appendix Table 3.2
Radon Decay-Product Concentration (RDC) Measurement Results
DOE ID No.: MS-00161-RS
Address: 249 East 200 South Street, Monticello, Utah
Instrument Type: Terradex Track Etch® Detector
Radon Average
Detector Tracks Per Concentration Working
Number Start Date End Date mm2 (pCi/1) Level (WL)
526489 01-18-89 01-18-90 21.8 2.87 0.0144
526059 01-18-89 01-18-90 *
526099 01-18-89 01-18-90 25.5 3.35 0.0168
Annual Average: 0.0156
See Appendix Figure 2.1 for the measurement location.
*Measurements not valid due to damaged detector.
RLD-MM:07-25-90
MS-00161-RS:PCR-MS 06
REV 09/18/89
8
14 -
14 16
l 1 r—i
18 20 22 24 26 28 32 34 36 38 40 50 10 12 30 42 44 46 48 +
40
38
36
34
32
•3k
© 12 ® 30 0 © V-8 0 (Dm 12 14-16 15-18
© V-4 SINGLE
STORY
HOUSE
W\BASEMENT
2 15-18 14-18 : j LECENP :
ALL DEPTHS IN INCHES
ALL EXPOSURE—RATES IN fi R/h
• • ASSESSED AREA IDENTIFIER
V-3 28
13-16
© 12 12-14 V-5 V-2 V-1
14-18 13-18 14-17
© AVERAGE DEPTH OF ASSESSED CONTAMINATION
AREA- OF: ASSESSED 'CONTAKJtNANtS!! "
POST REMEDIAL ACTION EXPOSURE-RATE RANGE
16
26 RDC
12 12-15
BOUNDARY OF EXCAVATION
© V-7 V-6 J © 12 AVERAGE EXCAVATED iDEPTH FOR THE DEPOSIT
OF; CONTAM1NATION -;j; 14-17 13-17 1.2. ; 24
v-i VERIFICATION SOIL SAMPLE iAREA IDENTIFIER
ANID. EX C AVAT.IQN • EXPOSURE— RATE • RANG E • • •
B : POST REMEDIAL ACTION RADON DECAY—PRODUCT
CONCENTRATION MEASUREMENT LOCATION
ASS ESS FJO' ' CbWfAM IN ANTS' NOT FOUND AT'""
TIME OF REMEDIAL ACTION \
RDC
22
20
18
16
RADIOLOGICAL AS-BUILT
j FIGURE 2.1
EXTERlDR EXTENT OF CONTAMINATION 14
CK *1 | NO | OATt
U.S. DEPARTMENT OF ENERGY
GRANO JUNCTION PROJECTS OFFICE. COLORADO
MUCMO This: drawing, prepared tor the Uranium Mill Tailings
- - -Remedial'Actton •Projfect;'r» forthe voir use- of the*U.S
Department of Energy and Its: contractors. It is not a
land;survey plat oraii Improvement survey pl?l and is
.not .be rf»l.iftd.upon;(9r.ihe ASto£Ns.Kmen,l pt fonce,
building, or dther future Improvement lines.
12 SCALE IN ! FEET : 249 EAST 200 SOUTH STREET
MONTICELLO. UTAH
tUSWTTID 20 20 : 10 40 1UW«1 MTI
\55l
UNC Geotech)** MS-00161-RS BATE
+ CD01 B
16 10 14 18 20 22 24 30 34 36 44 12 26 28 32 38 40 42 46 48 50
OAK RIDGE NATIONAL LABORATORY
OPERATED BY MARTIN MARIETTA ENERGY SYSTEMS. INC.
GRAND JUNCTION OFFICE
P. O. BOX 2567
GRAND JUNCTION. COLORADO 81502
February 20, 1991
W. E. Murphie
Chief, Decontamination & Decommissioning Branch
Division of Eastern Area Programs
Office of Environmental Restoration
and Waste Management
U.S. Department of Energy (EM-423)
Washington, DC 20545
Dear Mr. Murphie:
Verification Statements for Monticello Vicinity Properties
Enclosed please find the verification statements for:
These properties were subject to Type A verification (completion report
review and confirmatory analysis). The official IVC reports are currently
in publication.
MJW/mjw
cc: B. A. Berven, ORNL
D. N. Mackenzie, RFW
H. A. Perry, Geotech
I. I. Stewart, Geotech
M. K. Tucker, D0E/GJP0
MS00161-RS 249 East 2nd South Street
MS00145f-RS 544 East Cemetery Road
Sincerely,
Pollutant Assessments Group
VERIFICATION STATEMENT FOR MS00161-RS, 249 EAST 2ND SOUTH STREET
An independent assessment of remedial action activities at 249 East
2nd South Street, Monticello, Utah, has been accomplished by the ORNL
Pollutant Assessments Group (PAG). The purpose of the assessment is to
verify the data supporting the adequacy of the remedial action and to
confirm the site's compliance with DOE guidelines. The assessment included
reviews of data provided in the post-remedial action report, and remedial
action plans and activities as well as verification analysis of archived
post-remedial action soil samples.
A review of procedures and techniques suggests that the procedures used
to develop the data presented in the post-remedial action report are
adequate to characterize the final radiological condition of 249 East 2nd
South Street, Monticello, Utah, and that based on the data in the post-
remedial action reports, the site conforms to the remedial action criteria
for the Monticello Vicinity Properties (MVP).
DOE ID NO.: MS- OO i 6 I fe S
Property Address: 2.4 ^ East" Second Soufl, Street
VICINITY PROPERTY CERTIFICATION SUMMARY AND RECOMMENDATION
SUMMARY EVALUATION
Chem-Nuclear Geotech, Inc.
YES NO NOT TAKEN
Ra-226 is < 5 pCi/g
above background in top
15-cm layer of soil
averaged over 100 m2. [X]* [ ] [ ]
In-situ [X] Lab [ ]
Ra-226 is < 15 pCi/g
above background in any
15-cm layer of soil
more than 15 cm below
the surface averaged
over 100 m2. tK] [ ] [ ]
In-situ [ ] Lab fx]
Interior gamma is < 20 pR/h
above background in any
occupied or habitable
structure. £x] [ ] [ ]
The radon decay-product
concentration in any
occupied or habitable
structure is < 0.02
working levels or, at
most, 0.03 working levels. txl [ ] [ ]
Supplemental standards were
applied in accordance with
EPA standard 40 CFR 192.21. [ ] fcxj [ ]
Hot spot criteria met as
outlined by U.S. DOE
guidelines for FUSRAP and
SFMP (Rev. 03/02/87). [ ] [ ] £x2
U.S. Department
of Energy (DOE)
YES NO NOT TAKEN
9Q
00
t ]
[ ]
t i
COMMENTS: *The excavations were backfilled with materials which were measured
at the source showing that the Ra-226 concentrations are in the range of
normal background. Other surface areas were verified on the basis of gamma
exposure rates which do not exceed 30-percent above normal background.
DOE ID NO.: MS - OO I £ i ~
CHEM-NUCLEAR GEOTECH, INC., RECOMMENDATION
Based on the Chem-Nuclear Geotech, Inc., evaluation, I recommend this property
for:
[X] Certification by the Department of Energy.
[ ] Certification by the Department of Energy with the concurrence of the
Nuclear Regulatory Commission because supplemental standards were
applied per 40 CFR 192.21.
Harry A. Pajrry S\ Date
SFMP Manager
Chem-Nuclear Geotech, Inc.
DOE EVALUATION
[X\ Should be certified by the Department of Energy.
[ ] Should be certified by the Department of Energy with the concurrence
of the Nuclear Regulatory Commission because supplemental standards
were applied per 40 CFR 192.21.
SFMP Certification Official Date ' /
Department of Energy