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Home My WebLink AboutDERR-1996-013837 - 0901a06880543b7cRadiologic and Engineering Assessment DOE ID No: MS-00284-MR 249 West First North Street March 1995 Prepared for U.S. Department of Energy Albuquerque Operations Office Grand Junction Project Office Prepared by Rust Geotech Grand Junction, Colorado Work performed under DOE Contract No. DE-AC04-86ID12584 for Concurred by Division of Radiation Control Date 12. sJ. 2k Date SCANNED - mto- o\2>?>?rt DOE ID No. MS-00284-MR 1.0 INTRODUCTION The property is a single-family residence located at 249 West First North Street, Monticello, Utah. The legal description is as follows: Beginning 130 feet west of northeast corner of Lot 4, Block L, Monticello Townsite Survey, thence west 84.5 feet, thence south 150 feet, thence east 84.5 feet, thence north 150 feet to point of beginning. The purpose of this assessment is to evaluate the extent of uranium millsite contamination at the property. This assessment includes recommended remedial action, estimated volume of material to be removed, and estimated cost of the proposed action. 2.0 EVALUATION There is no owner preference with respect to remedial action and no legal or other complications are foreseen at this time. The design drawing(s) give a general description of the property and work required to remove contaminated material. The design is based upon the Remedial Action Recommendations discussed in Appendix A, Radiological Assessment. The estimated volume of material to be removed as a result of remedial action is presented in Tables 1.1 and 1.2. The estimated volume is: interior, 0 cubic yards; exterior, 53 cubic yards. The cost estimate to perform remedial action on this property is presented in Table 1.1. The estimated cost is $9,500. March 24, 1995 K:\HOME\WPGEN\MVP\MVP-PROP\M00284RE:sl REV092393 RUST Geotech MS-00284-HR TABLE 1.1 - UNIT COST ESTIMATE SUMMARY MS-00284-MR Sheet Operation QUANTITY UNIT MEAS | UNIT | j COST j TOTAL COST 010000 010100 010110 010130 015104 015910 020000 020128 020258 020259 020551 020556 020572 020702 021130 021131 022201 022216 022290 022312 Q29310 030000 033121 040000 042307 042311 070000 076205 090000 099225 GENERAL REQUIREMENTS MOBILIZATION/DEMOBILIZATION ACCESS CONTROL FENCING WATERING ALLOWANCE LOCATE/IDENT/MARK UG UTIL REM/STR/REINS PERSON PROP ITEM SITEWORK REMOVE CONCRETE FLATWORK 4 IN INSTALL NEW 6X6 TREATED TIMB REMOVE/INSTALL NEW BULKHEAD REM/REP CHAINLINK FENCE/POSTS REM/CLN/REP CLOTHES LINE POST REMOVE RAILROAD TIES SHORE PATIO ROOF REMOVE/RE PLACE SHRUBS REMOVE STUMP EXCAVATION HAND EXCAVATION BACKFILL ROADBASE TOPSOIL PLACE NEW SOD CONCRETE CONCRETE SLAB/BORDERS MASONRY REMOVE 8 INCH CMU PLACE NEW 8 INCH CMU THERMAL 4 MOISTURE PROTECTION REM/REINS GUTTER/DOWN SPT ETC. FINISHES PAINT CONCRETE SLAB 1.00 1 . 00 350.00 1.00 1 . 00 1 . 00 1 . 00 5 . 00 3 .00 1 . 00 20 . 00 1 .00 1 . 00 1 . 00 1.00 1 . 00 38.00 10.00 9 . 00 40.00 1080.00 1.00 7.00 1 . 00 138.00 115.00 1 .00 1.00 1 . 00 251.00 LS LF LS LS LS * # # CY EA LS LF LS LS LS LS LS CY CY CY CY SF * * # CY * * # SF SF * # * LS 285.42 1 .35 186.62 182.45 364.80 103.53 43 . 73 114.55 10 .85 91 .20 91 .20 345.95 566.08 182 .40 13 . 17 52 .42 20 . 04 14 .57 0 .83 211.44 1.40 6.79 364.83 0 .75 285.42 474.18 186.62 182.40 364.80 517.91 131.19 114.56 217.06 91.20 91.20 345.95 566.03 182.40 500.46 524.16 180.32 582.96 952.80 1480.10 193.81 781.10 364.80 188.62 Grand Total: 9500.10 DEFINITIVE WILL SUTTHILL ESTIMATOR 0 GRAND TOTAL INCLUDES ALL MARK-UPS, 03/24/95 PRINTED 22-MARCH-95 DOE ID NO. MS-00284-MR TABLE 1.2 AREA/VOLUME SUMMARY INTERIOR: CONTAMINATED 0 CY 0 TONS 0 SF 0 SM UNCONTAMINATED 0 CY 0 TONS 0 INTERIOR TOTAL 0 CY 0 TONS 0 SF 0 SM EXTERIOR: CONTAMINATED 53 CY 85 TONS 1400 SF 130.06 SM UNCONTAMINATED 0 CY 0 TONS 0 0 EXTERIOR TOTAL 53 CY 85 TONS 1400 SF 130.06 SM PROJECT TOTALS 53 CY 85 TONS 1400 SF 130.66 SM )tf D£FINITIVE DOE ID NO. MS-00284-MR APPENDIX A RADIOLOGICAL ASSESSMENT FOR DOE ID NO. MS-00284-MR Submitted: August 19,1994 CONTENTS Executive Summary Team Leader Notes Tables Table 1. Radium Concentrations at Exterior Locations Table 2. Radium Concentrations at Interior Locations Figures Figure la. Gamma Exposure Rates/Sample Locations Figure 1 b. Interior Gamma Exposure Rates/Sample Locations Figure 2a. Exterior Estimated Extent of Contamination Figure 2b. Interior Estimated Extent of Contaminaiton DOE ID NO. MS-00284-MR Executive Summary 1.0 Introduction This property is a residence located at 249 West First North Street, Monticello, Utah. Following procedures described in the Field Assessments Procedures Manual, data were collected on this property and assessed to estimate the location of residual radioactive material in excess of the U.S. Environmental Protection Agency (EPA) 'Standards for Remedial Action at Inactive Uranium Processing Sites' (40 CFR 192). 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. 2.0 Gamma Exposure-Rate Surveys 2.1 Exterior The area backgrounds are 12 uR/h and 1.5 pCi/g. The high exterior gamma exposure rate is 54 uR/h. Areas of elevated exterior gamma exposure rates are shown in Figure la. 2.2 Interior The interior background, as determined by RUST Geotech Inc. (Geotech),.is 13 LiR/h. The high interior gamma exposure rate is 28 LiR/h. The net area-weighted average gamma exposure rate is 2 (.iR/h. This value is less than the EPA guideline of 20 uR/h above background averaged over 9.3 m2. The area of elevated interior gamma exposure rates is shown in Figure lb. 3.0 Radon/Radon Decay-Product Concentration (RDC) A continuous working-level measurement was taken by Geotech. The result is as follows: Date In Date Out Average Working Level July 20,1993 June 27, 1994 0.0129 DOE ID NO. MS-00284-MR The measurement location is shown in Figure 1 b. This measurement indicates that this property will probably not exceed the EPA guideline of 0.02 WL. 4.0 Extent of Contamination 4.1 Exterior Figure la shows the locations of radium measurements made; the related radium data are listed in Table 1. The maximum radium concentration in the contaminated areas is 46.5 pCi/g, Figure 2a shows the estimated boundaries and depths of exterior contamination. The deposits containing identified residual radioactive materials are characterized as follows: Beneath the property sidewalk and patio slab, and in the bare soil and grass areas. 4.2 Interior Figure lb shows the location of radium measurements made; the related radium data are listed in Table 2. The maximum radium concentration in the contaminated area is 11.9 pCi/g. Figure 2b shows the estimated boundary of interior contamination. The deposit containing identified residual radioactive materials is characterized as follows: In the mortar of the exterior brick wall. 5.0 Remedial Action Recommendations 5.1 Exterior Exterior Deposits A through C (Figure 2a) should be removed and the appropriate cover material replaced. 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. DOE ID NO. MS-00284-MR 5.2 Interior None required for Deposit D (Figure 2b). The net area-weighted average gamma exposure rate and the RDC are below the EPA guidelines. 6.0 Commingled Waste Investigation A commingled waste investigation was not performed on this property. TEAM LEADER NOTES DOE ID NUMBER: MS-00284-MR SURVEY START DATE: October 15, 1991 TEAM LEADER: Tom Unrein Owner: Telephone Numbers: ( Deposit C (Figure 2a) appears to extend beneath the concrete sidewalk and patio. The concrete thickness of the sidewalk and patio is 4 inches. Deposit A (Figure 2a) does not appear to extend beneath the front patio. The shed near the west side of the house has a soil floor. The depth of contamination near the southeast corner of the rear patio is estimated to a depth of 12 inches, based on the depths of nearby sample locations. There is no spillover to adjacent properties, as detennined by a scintillometer scan. /Ug RADRPT VIO.2 <930713> Table 1 Radium Concentrations at Exterior Locations 249 West First North Street DOE ID #MS-00284-MR Monticello, Utah Page 1 of 2 Seq Sample Num Loc Num Ra-226 (pCi/g) Survey Coord. Depth Meas. Non-North (in.) Type Deconv. Deconv. (ft.) East (ft.) Comments R 00 [03] 00 06 09 00 06 DS DS DS DS DS DS DS 1. 5 1.4 7.5 7.2 4 .1 5 . 6 5.2 611 430 Background 590 432 Concrete slab Grass Hz beneath concrete slab 599 443 Grass 00 06 DS DS 36.1 8 .1 588 441 Grass R 00 06 06 00 06 06 00 00 00 06 DS DS DS DS DS DS DS DS DS DS 5 . 2 . 4 . 2 . 2 . 2 . 1. 9 1.9 8.2 7 . 9 583 439 Grass Hz against concrete foundation 568 417 Soil Hz 546 412 Concrete walk Concrete stoop Soil R 9 R 10 R 11 R 12 R 13 00 06 12 00 06 00 06 [08] 00 00 00 [06] 00 06 12 DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS 46 . 5 33 .1 4 .2 12 .6 8.5 5.4 3 . 7 9.6 1.7 2.4 1. 9 5.6 8 . 8 13 .5 8.3 540 412 Soil 532 417 Soil 526 406 Soil 549 431 Soil in planter Concrete patio-west pour Concrete patio-east pour 543 433 Concrete patio 540 432 Soil (flower bed) Grass RADRPT VIO.2 <930713> DOE ID #MS-00284-MR Table 1 Radium Concentrations at Exterior Locations 249 West First North Street Monticello, Utah Ra-226 (pCi/g) Survey Coord. Seq Sample Depth Meas. Non- North East Num Loc Num (in.) Type Deconv. Deconv. (ft.) (ft.) Comments R 14 00 06 DS DS 4.2 4 .1 527 430 Soil Page 2 of 2 R 15 R 16 R 17 R 18 R 19 00 00 00 00 00 06 09 00 06 DS DS DS DS DS DS DS DS DS <1.0 10.3 1.9 7.4 14 . 9 18 . 8 3 5, 0 5.3 4 . 0 548 444 Concrete patio 543 444 Grass 549 452 Concrete patio 543 452 Concrete patio Grass Hz beneath concrete patio 585 474 Grass R 20 00 06 DS DS 7 . 5 4 .7 577 475 Grass R 21 00 06 DS DS 7.2 3.7 561 477 Grass 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 = TU RADRPT VIO.2 <930713> DOE ID #MS-00284-MR Table 2 Radium Concentrations at Interior Locations 249 West First North Street Monticello, Utah Ra-2 26 (pCi/g) Survey Coord. Page of Seq Sample Depth Meas. Non- North East Num Loc Num (in.) Type Deconv. Deconv. (ft.) (ft.) Comments R 22 [00] DS 11. 9 568 419 Hz against brick 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 = TU WEST FIRST NORTH STREET N 600 N 550 12-14 N 500 NORTH 12 n GRASS R3 O R2 43 R4 tf R5 R20 16-19 SOIL 20 « ONE STORY J FRAME HOUSE W/PARTIAL BASEMENT GRASS P>3 V. + & R17 R7 1 5W! R18 a R8 28 16 x . ""V » :1 +°rtT+T/ GRASS O 0 co \r + + + -+~ <z 1 ^16-28 SOIL 16-28 2 SHED 12-13 o o IT; R1 « 16 19-25 LEGEND SAMPLE LOCATION AND NUMBER GAMMA EXPOSURE RATE AT GROUND LEVEL IN /iR/h RANGE OF GAMMA EXPOSURE RATES AT GROUND LEVEL IN fiR/h , BOUNDARY FOR AREA OF ELEVATED GAMMA EXPOSURE RATES l>>| AREA OF ELEVATED GAMMA EXPOSURE RATES ALL GAMMA MEASUREMENTS ARE WITHIN THE RANGE OF NORMAL BACKGROUND UNLESS OTHERWISE NOTED. FIGURE 1q GAMMA EXPOSURE RATES/SAMPLE LOCATIONS SCALE IN FEET 20 10 0 RM00284 08/11/94 KOF/833 20 40 THIS DRAWING IS FOR THE SOLE USE OF THE U.S. DEPARTMENT OF ENERGY AND ITS CONTRACTORS. IT IS NOT A LAND SURVEY PLAT, UTILITY LOCATION PLAT, OR OTHER IMPROVEMENT SURVEY PLAT AND IS NOT TO BE RELIED UPON FOR THE ESTABLISHMENT OF FENCE, BUILDING, OR OTHER FUTURE IMPROVEMENT LINES. RESIOENCE-NO. OF OCCUPANTS NON—RESIDENCE—UAN—HRS./WK. INSTRUUENT NO. VERIFICATION Br CK. A.E. APP. NO. DATE BY CK. A.E. APP. U.S. DEPARTMENT OF ENERGY GRAND JUNCTION PROJECTS OFFICE, COLORADO SUBUtTTED 38 249 WEST FIRST NORTH STREET MONTICELLO, UTAH GEOTECH INC APPROVAL OOE "BATT DOE to NO. MS-00284-MR o»c.HO. 3-BQQ284-G1 SHr 1 0F 4 N 575 BRICK AND MORTAR WALL N 550 1*22 16-28 GROUND FLOOR 12-13 o o IT) CM O in NORTH NOT TO SCALE RM002840 08/11/94 KDF/B33 LEGEND R1 # SAMPLE LOCATION AND NUMBER Q_,, RANGE OF GAMMA EXPOSURE RATES AT y ^° GROUND LEVEL IN/iR/h r^ j BOUNDARY FOR AREA OF ELEVATED GAMMA EXPOSURE RATES |>>| AREA OF ELEVATED GAMMA EXPOSURE RATES O RDC MEASUREMENT LOCATION FIGURE 1b INTERIOR GAMMA EXPOSURE RATES/SAMPLE LOCATIONS RESIOENCE-NO. OF OCCUPANTS NON-RESIDENCE-UAN -HRS./WK. INSTRUMENT NO. SURVEY OATE VERIFICATION BY CK. A.E. APP. NO. OATE BY CK. A.E. APP. U.S. DEPARTMENT OF ENERGY GRAND JUNCTION PROJECTS OFFICE. COLORADO •>niv 249 WEST FIRST NORTH STREET MONTICELLO, UTAH GEOTECH INC APPROVAL OOE DOE ID NO. MS-00284-MR D„O.HO. 3-B00284-I1 SHT2 or 4