concurrences mar 1 - energy.gov · concurrences mr. frank casolito new jersey department of...

CONCURRENCES

Mr. Frank CasolitoNew Jersey Department of

nvironmental Protection380 Scotch RoadTrenton, t-ew Jersey 08628

MAR 1 1983

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INITIALS/SIG.

Dear Mr. Cosolito:DATE

I am enclosing three copies of the final post remedial action Y'adiolo icalsurvey report on areas 4 through 10 at the former Kel1ex site in Jers y City,New Jersey. This final report replaces the draft report sent to you onAugust 3, 1982. There does not appear to be any chanqc in the data franthe draft previously sent you; therefore, either one could be used to evaluatethe site for certification purposes.

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INITIALS/SIG.

DATE

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We are under extreme pressure to certify the former Kellex site, and we areready to proceed \;/ith the final phases of the certification process uponreceipt of written concurrence from the Hew Jersey Department of EnvironmentalProtection.

INITIALS/SIG.

DATE

Thanl' you for your cooperati on and if there ar any questi ons. pl ease call meon 301-353-5439.

ATG. SYMBOL.

INITIALS/SIG.

Si ncerely, DATE

Original Si;ln)d I5yArthm J. Whitman

ATG.SYMBDL

Arthur J. ~Ihi tJllanDivision of Remedial Action ProjectsOffice of Terminal Aaste Disposal

nd Remedial ActionOffice of Nuclear Energy

INITIALS/SIG.

DATE

ATG. SYMBOL

Enclosure (3) INITIALS/SIG.

DATE

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INITIALS/SIG.

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DATE

NE-73 (4)NE-24 RFWhitman RF

NE-24 :AW~i"~/a: ~::: 353-5439: 3/8/83: p. F-52 :V-2-A-8 .., / 0~ INITIALS/SIG.

..................•DATE

cc:S. Kuhrtz, NJDEQ, wlo encl.G. Fisher, NJDEP~ wlo encl.

bcc:E. Delaney, w/o encl.E. Keller, OR, w/encl. (3)W. Bibb, OR, w/o encl.B. Berven, ORNL, w/o encl.A. Whitman, NE-24, wlo encl.Aerospace, w/encl. (2)

DOE F 1325.1017-79)

OFFICIAL FILE COpy

·j

/

. .,

-.

DOE/EV-OOOS/29(Supplemental)ORNL/Tlrf-8941

RESULTS OF TIlE POST REMEDIALACTION SURVEY OF AREAS 4

THROUGH 10 AT 11IE FORMER KELLEXSITE IN JERSEY CITY, NEW JERSEY

C. ClarkB. A. BervenW. D. CottrellW. A. Goldsmith

Contract No. W-7405-eng-26

Health and Safety Research Division

RESULTS OF THE POST REMEDIAL ACTION SURVEYOF AREAS 4 lHROUGH 10 AT THE FOIDffiR

KELLEX SITE IN JERSEY CITY, NEW JERSEY

C. ClarkB. A. BervenW. D. CottrellW. A. Goldsmith

September 1983

Work performed as part of theREMEDIAL ACTION SURVEY AND CERTIFICATION

ACTIVITIES PROGRAM

OAK RIDGE NATIONAL LABORATORYOak Ridge, Tennessee 37830

operated byUNION CARBIDE CORPORATION

for theDEPARTMENT OF ENERGY

DOE/EV-0005/29(Supplemental)ORNL/TM-8941

LIST OF FIGURES

LIST OF TABLES

INTRODUCTION . .

SURVEY METHODS

CRITERIA AND BACKGROUND LEVELS

SURVEY RESULTS .....

SIGNIFICANCE OF FINDINGS

REFERENCES .. . . . . . .

CONTENTS

;;

Page

· ;;;• • •. ; v

· . . · 1· · · · 2

· · . . 2

· . . · 3· · · · 4

· · · · 5

Figure

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

LIST OF FIGURES

View of property and areas that wereexcavated during the 1979 post remedial actionradiological survey at Kel1ex.

View of Area 4 ..

View of Area 5 •

View of Area 6 and subareas

View of Area 6A

Vi ew of Area 68

View of Area 6C

View of Area 60

View of Area 60, trench areas 1, 2, and 3

View of Area 6E

View of Area 6F

View of Area 6G

View of Area 6H

View of Area 61

View of Area 6J

View of Area 7 .

View of Area 8 .

View of Area 9 .

View of Area 10

iii

6

7

8

9

10

11

12

13

14

15

16

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18

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22

23

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Table

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

LIST OF TABLES

A summary of applicable radiation guidelines forthe former Kellex site ........•..

Background radiation levels for the northernNew Jersey area . . . • . . . . . . . . . .

Former Kellex Laboratory: Jersey City, New Jerseygrid survey for decontaminated Area 4 .

Former Kellex Laboratory: Jersey City, New Jerseygrid survey for decontaminated Area 5 ..•.••

Former Kellex Laboratory: Jersey City, New Jerseygrid survey for decontaminated Area 6A .

Former Kellex Laboratory: Jersey City, New Jerseygrid survey for decontaminated Area 6B .

Former Kellex Laboratory: Jersey City, New Jerseygrid survey for decontaminated Area 6C .

Former Kellex Laboratory: Jersey City, New Jerseygrid survey for decontaminated Area 60 .

Former Kellex Laboratory: Jersey City, New Jerseytrench survey of decontaminated Area 60 .....

Former Kellex Laboratory: Jersey City, New Jerseygrid survey for decontaminated Area 6E ..••..

Former Kellex Laboratory: Jersey City, New Jerseygrid survey of decontaminated Area 6F ..•...

Former Kellex Laboratory: Jersey City, New Jerseygrid survey of decontaminated Area 6G .

Former Kellex Laboratory: Jersey City, New Jerseygrid survey of decontaminated Area 6H .

Former Kellex Laboratory: Jersey City, New Jerseygrid survey of decontaminated Area 61 .

Former Kellex Laboratory: Jersey City, New Jerseygrid survey of decontaminated Area 6J .


iv

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27

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33

34

35

36

37

38

39

40

Table

17

18

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20

21

22

23

24

25

26

27

28

29

LIST OF TABLES (continued)


Former Kellex Laboratory: Jersey City, New Jerseygrid survey of decontaminated Area 9 ......•

Results of soil samples taken during the 1979 postremedial action radiological survey at Area 4


Results of soil samples taken during the 1979 postremedial action radiological survey at Area 6A

Results of soil samples taken during the 1979 postremedial action radiological survey at Area 6B

Results of soil samples taken during the 1979 postremedial action radiological survey at Area 6C


Results of soil samples taken during the 1979 postremedial action radiological survey at Area 6E ..

Results of soil samples taken during the 1979 postremedial action radiological survey at Area 6F ..

Results of soil samples taken during the 1979 postremedial action radiological survey at Area 6G ..

Results of soil samples taken during the 1979 postremedial action radiological survey at Area 6H


v

44

46

47

48

49

50

51

52

53

54

55

56

57

Table

30

31

32

33

34

35

36

LIST OF TABLES (continued)

Results of soil samples taken during the 1979 postremedial action radiological survey at Area 6J ..


Results of soil samples taken during the 1979 postremedial action radiological survey at Area 8 ..


Results of soil samples taken during the 1979 postremedial action radiological survey of Area 10 ..

Radionuclide concentration in water samples takenNovember 1979 . . . . . . . . . . • . . . . . . .

Summary of soil sample data collected during postdecontamination activities at the former KellexLaboratory site ..........•......

vi

58

59

60

62

63

64

65

RESULTS OF THE POST REMEDIAL ACTION SURVEY OFAREAS 4 THROUGH 10 AT THE FORMER KELLEX SITE

IN JERSEY CITY, NEW JERSEY*

INTRODUCTION

The M. W. Kellogg Company established the Kellex Corporation in1

1943 at the intersection of New Jersey Route 440 and Kellogg Street.The purpose of the Kellex facility was to design and construct thefirst gaseous diffusion uranium enrichment plant under a ManhattanEngineer District (MED) contract. Later, other uranium recovery anddecontamination activities took place under MED/Atomic Energy Commission(AEC) contracts. 1 All uranium-related activities were discontinued atthe former Kellex site in July 1952.

In June 1953, the VITRO Corporation of America prepared a contami-nation status report based on a radiological survey of one of the buildingsat the former Kellex site. 2

Comprehensive radiological surveys of the former Kellex facility wereconducted by Oak Ridge National Laboratory (ORNL) in two phases followinga preliminary radiological survey by ORNL on October 21, 1976. 3 The ini-tial radiological survey was conducted on the eastern portion of the sitein March 1977. The radiological survey on the western portion of thesite was completed over the remaining area during the summer of 1979. Theresults of the ORNL survey are provided in Reference 3.

During these surveys, nine areas of contamination were found. Thelocations of these nine contaminated areas are schematically located inFig. 1. A tenth area of contamination was found during decontaminationactivities in August 1979. The location of this area is also shown inFi g. 1.

Decontamination of Areas 1-3 at this site was conducted by EnvirosphereCompany (a division of Ebasco Services, Inc.) with construction assistanceby Tobar Construction Company during the week ending August 11, 1979. 4 Theresults of post remedial radiological survey of Areas 1-3 at the formerKellex site are presented in Reference 4.

Decontamination of Areas 4-9 was conducted by Envirosphere during theperiod between August 12, 1979, and November 29, 1979. (Area 10 was not

*Research sponsored by the Office of Operational Safety, U.S. Departmentof Energy, under contract W-7405-eng-26 with the Union Carbide Corporation.

2

decontaminated}. The purpose of this report is to document results ofthe post remedial action survey conducted by ORNL on Areas 4-10.

SURVEY METHODS

The survey at the former Kellex Laboratory site was performed inaccordance with the survey plan to characterize the existing radiologicalstatus of the Kellex site. 3 Comprehensive descriptions of survey methodsand instrumentation similar to those and for this survey have been pro-vided in other reports. s

All direct measurement results presented in this report are grossreadings; background radiation levels have not been subtracted. Similarly,background concentrations have not been subtracted from radionuclide con-centrations measured in environmental samples.

For the purposes of this survey, biased soil samples are soil samplescollected at specific locations where gamma radiation levels were measuredat one and a half to twice the normal New Jersey background level. Com-posite soil samples are soil samples generated by taking small aliquots ofsoil at regular intervals over a specified area and mixing the aliquotsinto a single homogeneous soil sample.

CRITERIA AND BACKGROUND RADIATION LEVELS

Applicable remedial action criteria have been summarized in Tabl.e 1.Since no firm or widely accepted criteria for residual radioactivity insoil existed at the time of the remedial action, a reasonable effort wasmade to reduce the contamination to near background levels. An upperlimit for radionuclides 232Th and 226Ra and their precursors in soil wasassumed to be 5 pCi!g for any sample of soil {~1 lb}. The 238U criterionused during the clean-up of the Kel1ex site was 40 pCi!g in the top 20 cmof soil averaged over 400 m2 of area. The normal background levels forthe New Jersey area are presented in Table 2. These data are provided forcomparison with the survey results.

3

SURVEY RESULTS

In order to document the location of post-cleanup radiation measure-ments and residual radionuc1ide concentrations, a grid system was estab-lished in six areas (4-9) as shown in Figs. 1-18. Area 6 consisted of tensmaller contaminated areas which were designated Areas 6A-6J. Area 10(Fig. 19) was excavated but not grided, and did not warrant any post-cleanup activities; however, soil samples were taken from this area foranalysis. Within the borders of each area on these figures, an outlineof the portion of that area which was excavated is shown.

Within the center of each grid block, gamma exposure rates weremeasured 1 m above the ground and beta gamma dose rates were measured at1 cm above the ground. Each grid block was scanned at a height of 0-10 cmfrom the surface to measure the gamma exposure rate. Results of thesemeasurements for the areas 4-9 are presented in Tables 3-18.

Final soil and water samples were returned to ORNL, processed, andanalyzed using routine laboratory techniques. Each soil sample wascounted with a Ge(Li) spectrometer and the concentration of 232Th and226Ra was determined using a computer-based multichannel analyzer.Uranium determinations were made by the ORNL Analytical Chemistry Divisionusing a neutron activation technique. 6 Results of these analyses forsoil samples collected in the six decontaminated areas and area 10 arepresented in Tables 19-34. Water sample results and a summary table ofsoil data are presented in Tables 35 and 36, respectively.

The maximum observed 226Ra concentration over the 5 pCi/g criteriawas measured in samples KT13B (9.1 pCi/g) and KT13B1 (13 pCi/g) takenfrom area 10 at a depth of 46 cm. However, the area is believed to meetthe criteria for 226Ra in soil averaged over a 100 m2 area.

The major contaminant found in the areas surveyed was 238U whichranged from 1 to 140 pCi/g. Areas which showed no elevated radionuc1ideconcentrations were: 4, 5, 6C, ~E, 6H, 7 and 9. Although Areas 6A, 6B,6F, 6G, 61, 6J, 8 and. 10 contained some elevated concentration of 238U,these areas did not exceed the guideline value of 40 pCi/g of 238U in the. . 2top 20cm.of soil averaged over a 400-m area.

4

SIGNIFICANCE OF FINDINGS

Based upon the results of the post-remedial action survey performed byORNL in Areas 4-10 on the former Ke11ex site, it appears that the remedialaction was successful in reducing radioactive contamination on the site tocriteria values established at the time of the post-remedial action survey.

5

REFERENCES

1. U. S. Department of Energy, A Baakground Report for the FormerZyUtiZized Manhattan Engineer Distriat/Atomia Energy CommissionSites Program, DOE/EV-0097A (September 1980).

2. VITRO Corporation of America, IIContamination Status ReportJersey City Laboratory,1I June 25, 1953.

3. Berven, B. A., H. W. Dickson, W. A. Goldsmith, W. M. Johnson,W. D. Cottrell, R. W. Doane, F. F. Haywood, M. T. Ryan, andW. H. Shinpaugh, RadioZogiaaZ Survey of the Former KeZZex ResearahFaaiZity~ Jersey City~ New Jersey, Oak Ridge National Laboratory,ORNL-5734, DOE/EV-0005/29 (February 1982).

4. Letter to E. L. Keller, Director for Technical Services Division,DOE/ORO, from S. V. Kaye, Director of the Health and Safety ResearchDivision, Oak Ridge National Laboratory, IIpost DecontaminationRadiological Survey of the Former Kellex Laboratory Site, Jersey City,New Jersey,1I (letter dated August 21, 1979).

5. R. W. Leggett, D. L. Anderson, W. D. Cottrell, D. J. Crawford,R. W. Doane, F. F. Haywood, T. E. Myrick, W. H. Shinpaugh, andE. B. Wagner, RadioZogiaaZ Surveys of Properties in the MiddZesex~New Jersey~ Area~ Oak Ridge National Laboratory, Oak Ridge, Tennessee,DOE/EV-0005/I (Supplement), ORNL-5680, (March 1981).

6. F. F. Dyer, J. F. Emery, and G. W. Leddicotte, A Comprehensive Studyof the Neutron Aativation AnaZysis of Uranium by DeZayed NeutronCounting~ ORNL-3342 (October 1962).

7. A. C. George and A. J. Breslin, liThe Distribution of Ambient Radonand Radon Daughters in Residential Buildings in the New Jersey -New York Area,1I Proaeedings of the NaturaZ Radiation Environment III~pp. 1272-93, CONF-780422 (Vol. 2), UTIS, 1980.

6

--~ ~-

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""

"

"x

x

x

x

x

.---.

OROYERS STREET

x x\:-- ---!!...-x -!::.---:

N

Fig. 1. Schematic view of property and areas that were excavatedduring the 1979 post remedial action survey at Kellex.

+

+

+

++

+ + + +B C D E

AREA 4

0 4J I I I I

FEET

+

7 +

K46 COMPOSITE

--\----- \------- \6 + r-- - + + + \

I \l \

5 + I + + -+ \ +I \I \I \

4 +1 ... + + )+I //

/L __, rI II + + I +I II II J

2 t 1+ + 1+I I

GRID BLOCK A1.-.-;.-· I IL -I

GRID BLOCK KEY-~1 of

A

Fig. 2. View of Area 4.

4 + + + + +

++-ooL/.DEPTH150em

+ " +DEPTH 30 em SAMPLINGLOCATION

3 +

2 +

+ + + +A B C D

AREA 5

0 1I I

METER

+E

K 390K 391K 392

K 393

+F

Depth 0- 30 em\I 30-60cm

II 60-183cm

II 183-732em


tFENCE

& 0i 06A 0r

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to-

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UJ 0a: .cr;t; e 018 a:(I) 0 ...Ja: UJUJ r ~>-0 a:a: (!)0 x

II 69 0V)CI

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GRAVEL ROAD

( AREA 6 NO SCALE

Fig 4. View of Area 6 and subareas.

K 357 COMPOSITE

3

5 + +

DEPTH 30 em -EJ K 358 COMPOSITE4 +

DEPTH 45 em-f-7l'-'"

DEPTH 30 em K 356 COMPOSITE

2 +

DEPTH 90 em K 355 COMPOSITE

1 +

A B

AR E A 6A

NO SCALE

Fig. 5. View of Area 6A.

2

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II

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+

B

+

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+ + + +I K 367 COMPOSITEx1 K 368 COMPOSITE

0 2I I I

METERS

AREA 6B


./,,1-,

/'

3 + + + K 380 COMPOSITEK 381 II

K 382 II

K 383 II

2 +

18+56,357R /

A

+

B

AREA 6C

NO SCALE

+1t'- 8+44, 357 R

C

Fig. 7. View of Area 6C.

2 +

3 +

I6 + + + + + 1'.

I5 + +

4 +

1 +. + + +A B C 0 E F

K 384 A- 10 2

K 385 A-4 I I I

K 386 B-1 METERS

K 387 B-4 AREA 60K 388 B- 5

K 389 0- 1

Fig.a. View of Area 60.

DEPTH90 cm---lIl+

DEPTH90cm--I4-+

K405

TRENCH 2

I4-

I

K 401 COMPOSITE

+F

+

+- 1-D E

+ +

TRENCH 1 AREA 6 D

o 2I I IMETERS

+

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K399 _

COMPOSITE

TRENCH 3

K403 --"""'4".1'.1COMPOSITE

Fig. 9. View of Area 60 trench areas l~ 2~ and 3.

+2 +

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4 + + +

K379

DEPTH 75 em K409 COMPOSITE

3 + + + +

8+35,327 R

+B

+C

++-8+f8,320R

oAREA 6 F

o 2I I I

METERS

Fig. 11. View of Area 6F.

4 +- + + +

2 + ~K343/

1 + + +A B C

AREA 6GK345 COMPOSITEK 346 II 0 2K 347 II I I IK 348 II METERSK 349 II

K 350 II

K 351 II

K 352 II

K 353 II

Fig. 12. View of Area 6G.

+

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3 + + +

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./.. '


4 +

3 +

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K 361 COMPOSITEK 362 \I

K 363 \I

K 364 \I

K 365 \I

K 366 "

+

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o 2I I I

METERS

+

3 + +

2

~~DEPTH25cm

K 184 COMPOSITE

K 354

1 + +A B

AREA 6J

o 2I I I

METERS

Fig. 15. View of Area 6J.

/+ + + + + + + + +/ +

10

+ + + + + + + + + + +

9+ + + + +

8

+ + + + + + + +

7

+ + + + + + + + +

6 DEPTH 105 em

+ + + + + + + + +

5

+ + + + + + + + +

4+ + + + + + +

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+ + + + + + + + +

2

+ + + + + + + + + + +

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8+98 /+ + + + + + + + + + +,8+70215 R A B C D E F G H J 204R

AREA 7K100 COMPOSITE K 107 B-3K 101 A-1 0 2 K 108 B-4K102 A-2

I ( rK 109 c- 1

K103 A-3METERS

K 110 C-2K104 A-4 K 111 C- 3K105 B-1 K 112 C- 4K106 B- 2


+

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+

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AREA 9

NO SCALE

K 98 COMPOS ITEK 338 B-4


K397---I~:1 I~;I 1~;I--K395

I KT 15

K396/AREA 10

NO SCALE


Table 1. A summary of applicable radiation guidelines for theformer Kellex site

Mode of exposure

1. External gamma radiationa

2. Surface alpha contaminationa

3. Surface beta contamination a

4: Beta-gamma dose ratesa

5. Exposure to radon a

6. Radionuclides in watera

7. Urani urn concentration in soil

Exposure conditions

Continuous exposure toindividual in generalpopulation (whole body)

226Ra contaminationfixed on surfaces

Removable 226Racontamination

Removable beta-gammaemitters

Average dose rate on anarea no greater than 1 m2

Maximum dose rate in any100 cm2 area

Maximum permissible concen-tration of 222Rn in air inunrestricted areas

Maximum contaminant levelfor combined 226Ra and228Ra in drinking water

Maximum permissible concen-tration of the followingradionuclides in water forunrestricted areas

226Ra238U230Th210Pb

Average concentration of238U in the top 20 cm ofsoil averaged over 400 m2(including background)

Guideline value

60 IJR/h

100 dpm/100 cm2

20 dpmllOO cm2

1000 dpm/lOO cm2

0.20 mrad/h

1. 0 mrad/h

3.0 pCi/L

5 pCi/L

30 pCi/L40,000 pCi/L2,000 pCi/L100 pCi/L

40 pCi/g

Guideline source

Nuclear Regulatory Commission (NRC) -Standards for Protection AgainstRadiation (10 CFR 20.105)

NRC Guidelines for Decontaminationof Facilities and Equipment Priorto Release for Unrestricted Use orTermination of Licenses for By-product, Source, or Special NuclearMaterial (Adapted from NRC Reg.Guide 1.86

Same as number 2

Same as number 2

Same as number 2

NRC 10 CFR 20.103,Appendix B, Table II

EPA Interim Standards 40 CFR 141.15

NRC 10 CFR 20.103Appendix B, Table II

DOE letter from William E. Mott toDepartment of EnvironmentalProtection, State of New Jerseydated June 13, 1980

N01

aThis appendix contains a complete listing of standard.

0.90.90.9

26

Table 2. Background radiation levels for the northern New Jersey area

Type of radiation measurement Radiation level oror sample radionuclide concentration

Gamma exposure rate at 1 mabove floor or ground surface (~R/h) 8

Direct alpha activity on indoor flooror wall surface (dpm/100 cm2 ) 25

Transferable alpha activity on indoorfloor or wall surface (dpm/100 cm2 ) 10

Transferable beta-gamma activity onindoor floor or wall surface (dpm/100 cm2 ) 20

Beta-gamma dose rate activity on ground,floor, and wall surfaces (mrad/h) 0.01-0.03

Indoor radon concentration (pCi/L)aBasement 1.7Upstairs 0.8

Indoor radon daughter concentration (WL)aBasement 0.008Upstairs 0.004

Concentration of radionuclides in soil (pCi/g)232Th238U226Ra

aReference 7.

27

Table 3. Former Kellex Laboratory: Jersey City, New Jerseygrid survey for decontaminated Area 4

Grid point measurements Grid block scanAverage gamma

Gridaexposure rate

Gamma exposure Beta-gamma dose 0-3 in. abovepoint rate at 1 m rate at 1 cm surface

(llR/h) (mrad/h) (llR/h)

Al 7 0.02 10A2 7 0.02 10A3 6 0.01 10A4 6 0.01 10A5 6 0.02 10A6 7 0.02 10A7 7 0.02 10

B1 7 0.02 10B2 7 0.02 10B3 7 0.01 10B4 8 0.02 10B5 8 0.02 10B6 8 0.02 10B7 8 0.02 10

C1 7 0.02 10C2 7 0.02 10C3 8 0.02 10C4 9 0.02 10C5 8 0.02 10C6 9 0.03 10C7 9 0.02 10

01 8 0.02 1002 8 0.02 1003 8 0.01 1004 8 0.01 1005 8 0.02 1006 8 0.01 1007 9 0.01 10

E1 7 0.02 10E2 6 0.01 10E3 6 0.02 10E4 7 0.01 10E5 8 0.01 10E6 7 0.02 10E7 8 0.02 10

aSee Fi g. 2 for grid location.

28

Table. 4. Former Kellex Laboratory: Jersey City, New Jerseygrid survey for decontaminated Area 5

Grid block measurements Grid block scanAverage gamma

Gamma exposure Beta-gamma dose exposure rateGrida rate at 1 m rate at 1 cm 0-3 in. aboveblock above center above center surface


Al 8 0.01 10A2 8 0.01 11A3 8 0.01 10

B1 8 0.01 10B2 8 0.02 13B3 8 0.01 9

C1 8 0.01 10C2 8 0.02 13C3 8 0.01 9

aSee Fi g. 3 for grid block location.

29

Table. 5. Former Kellex Laboratory: Jersey City, New Jerseygrid survey for decontaminated Area 6A

Grid block measurements

Gridablock

AlA2A3A4

Gamma exposurerate at 1 m

above center(llR/h)

7787

Beta-gamma doserate at 1 cmabove center

(mrad/h)

0.020.020.010.02

Grid block scanAverage gammaexposure rate0-3 in. above

surface(llR/h)

101098

aSee Fig. 5. for grid block location.

30

Table. 6. Former Kellex Laboratory: Jersey City, New Jerseygrid survey for decontaminated Area 6B


GridaGamma exposure Beta-gamma dose exposure rate

rate at 1 m rate at 1 cm 0-3 in. aboveblock above center above center surface

(~R/h ) (mrad/h) (~R/h)

Al 8 0.01 10

B1 8 0.01 10


31

Table. 7. Former Kellex Laboratory: Jersey City, New Jerseygrid survey for decontaminated Area 6C




(~R/h ) (mrad/h) (~R/h)

Al 8 0.03 10A2 8 0.02 9

B1 8 0.01 8B2 8 0.01 8


32





(\.IR/h) (mrad/h) (\.IR/h)

Al 10 0.01 10A2 9 0.01 10A3 8 0.01 10A4 8 0.01 11A5 9 0.01 11

B1 8 0.01 11B2 9 0.01 10B3 9 0.01 10B4 9 0.01 9B5 9 0.01 11

C1 8 0.01 10C2 9 0.01 10C3 9 0.02 11C4 9 0.02 9C5 9 0.01 10

01 9 0.01 1102 10 0.01 1003 9 0.01 1104 9 0.01 905 11 0.01 9

E1 9 0.02 10E2 9 0.01 10E3 9 0.01 11E4 9 0.02 10E5 9 0.01 10


33

Table 9. Former Kellex Laboratory: Jersey Ci·ty, New Jerseytrench survey of decontaminated Area 60

Average gamma Maximum gamma Maximum

Trenchaexposure rate exposure rate beta-gammaat surface at surface dose rate

(llR/h) (llR/h) (mrad/h)

#1 9 10 0.01

#2 9 13 0.02

#3 10 40b 0.2

aSee Fig. 9 for schematic of trench areas.bThe north end of trench scanned 24-40 llR/h.

34

Table. 10. Former Kellex Laboratory: Jersey City, New Jerseygrid survey for decontaminated Area 6E


Gridablock

AlA2

B1B2


above center(j.lR/h)

97

98


(mrad/h)

0.010.01

0.010.02


surface(j.lR/h)

1010

99

aSee Fig. 10 for grid block and sample location.

35

Table. 11. Former Kellex Laboratory: Jersey City, New Jerseygrid survey for decontaminated Area 6F

Gridablock

A1A2A3

B1B2B3

C1C2C3


Gamma exposure Beta-gamma dose exposure raterate at 1 m rate at 1 cm 0-3 in. above

above center above center surface(~R/h) (mrad/h) (l-lR/h)

9 0.02 109 0.02 109 0.01 10

10 0.02 1110 0.03 1110 0.02 11

9 0.01 109 0.02 119 0.02 9


36

Table. 12. Former Kellex Laboratory: Jersey City, New Jerseygrid survey for decontaminated Area 6G


Gridablock

AlA2A3

B1B2B3

C1C2C3


above center(pR/h)

899

999

899


(mrad/h)

0.010.010.01

0.020.010.01

0.010.010.01


surface(pR/h)

101010

81011

1099


37

Table. 13. Former Kellex Laboratory: Jersey City, New Jerseygrid survey for decontaminated Area 6H




(jlR/h) (mrad/h) (jlR/h)

A1 8 0.01 10A2 7 0.02 10

B1 7 0.01 10B2 7 0.01 10


38





(llR/h) (mrad/h) ( llR/h)

Al 7 0.02 8A2 7 0.01 8A3 7 0.01 7

B1 7 0.01 8B2 7 0.01 7B3 7 0.01 7

aSee Fi g. 14 for grid block 1ocati on.

39

Table. 15. Former Kellex Laboratory: Jersey City, New Jerseygrid survey for decontaminated Area 6J


Gridablock

AlA2


above center(fiR/h)

99


(mrad/h)

0.010.02


surface(fiR/h)

910

aSee Fig. 15 for grid block location.

40





(flR/h) (mrad/h) ( ~/h)

Al 9 0.02 10A2 8 0.02 9A3 9 0.02 9A4 8 0.02 9A5 7 0.01 9A6 7 0.01 9A7 8 0.02 8A8 8 0.02 9A9 8 0.02 9AlO 8 0.02 9

B1 8 0.02 10B2 8 0.01 10B3 7 0.02 9B4 7 0.02 10B5 8 0.02 10B6 7 0.02 10B7 7 0.02 8B8 8 0.01 10B9 8 0.01 11BlO 8 0.02 10

C1 8 0.02 8C2 8 0.02 10C3 8 0.03 11C4 8 0.02 9C5 8 0.02 10C6 8 0.02 10C7 7 0.02 9C8 8 0.01 10C9 8 0.01 9ClO 8 0.02 10

01 9 0.01 1102 8 0.01 1003 8 0.02 1004 8 0.02 1005 9 0.01 10

41

Table 16. (continued)





06 8 0.01 lO07 7 0.01 908 8 0.01 909 7 0.01 9OlO 8 0.01 9

E1 8 0.02 lOE2 9 0.02 11E3 9 0.03 9E4 8 0.02 12E5 7 0.02 9E6 7 0.02 8E7 7 0.02 8E8 8 0.02 8E9 8 0.02 11E10 9 0.02 12

Fl 9 0.02 11F2 9 0.02 11F3 8 0.02 lOF4 8 0.02 lOF5 7 0.02 9F6 7 0.01 8F7 7 0.02 8F8 8 0.01 9F9 8 0.02 lOFlO 9 0.02 12

G1 9 0.02 11G2 9 0.02 11G3 9 0.02 11G4 8 0.02 10G5 8 0.02 10G6 8 0.02 11G7 7 0.02 9G8 8 0.02 lOG9 8 0.01 11G10 9 0.02 13

42





(~R/h) (mrad/h) (~R/h )

HI 9 0.02 11H2 8 0.02 11H3 9 0.02 11H4 9 0.02 11H5 8 0.02 12H6 9 0.03 10H7 8 0.01 10H8 8 0.02 10H9 9 0.02 12H10 9 0.03 11

11 8 0.01 1012 8 0.02 1213 9 0.02 1214 8 0.02 1215 8 0.02 1316 9 0.02 12I7 8 0.02 1118 9 0.03 1219 9 0.02 12110 8 0.02 12

J1 8 0.02 9J2 7 0.02 11J3 8 0.02 11J4 8 0.02 12J5 9 0.02 11J6 8 0.02 11J7 7 0.02 11J8 8 0.02 10J9 8 0.02 10J10 8 0.02 10

Wa 11 s of pitsinside gridblocks

D3 0.02 13D4 0.02 13

43



GridaGamma exposure Beta-gamma dose

rate at 1 m rate at 1 cmblock above center above center

(~R/h) (mrad/h)

05 0.0206 0.0207 0.0108 0.0209 0.02

E3 0.02E9 0.02

- ..'

F3-f4 0.02F9 0.03

G4 0.02G5 0.02G9 0.02

H6 0.02H7 0.02H8 0.02H9 0.03

aSee Fig. 16·for grid block location.


surface(~R/h)

1313121114

1212

1212

121312

11121311

44





(llR/h) (mrad/h) ( llR/h)

Al 7 0.02 11A2 7 0.02 11A3 7 0.02 11A4 7 0.02 11A5 6 0.02 11A6 7 0.02 11A7 7 0.02 11A8 7 0.02 11A9 7 0.02 11A10 6 0.01 11

B1 7 0.01 11B2 7 0.03 11B3 8 0.02 11B4 7 0.01 11B5 7 0.01 11B6 7 0.02 11B7 8 0.02 11B8 7 0.02 11B9 6 0.01 11B10 7 0.01 11

C1 7 0.01 11C2 8 0.01 11C3 8 0.01 11C4 7 0.01 11C5 8 0.02 11C6 8 0.02 11C7 8 0.02 11C8 8 0.02 11C9 8 0.02 11C10 7 0.01 11

01 7 0.02 1102 8 0.01 1103 8 0.01 1104 7 0.02 1105 8 0.01 1106 8 0.02 1107 8 0.01 11

45



Gridablock

0809OlD


above center(ttR/h)

888

Beta-gamma doserate at 1 cm

.above center(mrad/h)

0.010.020.02


surface(llR/h)

111111

aSee Fig. 17 for grid block location.

46





(llR/ h) (mrad/h) (llR/h)

A1 8 0.01 10A2 7 0.01 10A3 8 0.01 10A4 8 0.01 10

B1 8 0.01 10B2 7 0.01 10B3 8 0.01 10B4 9 0.01 10

Cl 7 0.01 10C2 7 0.01 10C3 7 0.01 10C4 8 0.01 10


Table 19. Results of soil samples taken during the 1979 post remedial actionradiological survey at Area 4

SampleNumber

Grid b10ckalocation

Samp1ebtype

OepthC(cm)

Radionuc1ide concentration (pCi/g)d23BU 226Ra 232Th

K-46 A1-A6, B1~6,C1-(6, 01-06

Composite 0-8 1.5 2.6±0.3 1.3±0.08

aArea from which sample was collected is shown in Fig. 2.bThe composite was comprised of a1iquots of soil from each grid block indicated, and mixed

into a single homogeneous sample.cA depth of 0-8 cm was considered a surface sample.dlndicated errors associated with these concentrations are two standard deviations (95%

confidence level).

+::>-....J


Samplea Grid blockb Sample Depth Radionuclide concentration ~PCi!g)CNumber location type (cm) 238U 226Ra 23 Th

K-390 E2 (trench) Biasedd 0-30 1.5 1.9±5 2.0±7.2K-391 E2 (trench) Biased 30-{)0 2.2 2.4±0.1 2.7±0.2K-392 E2 (trench) Biased 60-183 1.7 2.4±0.3 1. 7±0. 2K-393 E2 (trench) Biased 183-732 1.7 1.6±5.1 1. 3±0. 7

aSamples were taken from the same location at different depths.bSample locations are shown in Fig. 3.clndicated errors associated with these concentrations are two standard deviations (95%

confidence level).dSamples were taken from locations showing maximum gamma exposure rates.

~0:>

Table 21. Results of soil samples taken during the 1979 post remedial actionradiological survey at Area 6A

Sample Grid b10cka Samp1eb DepthC Radionuc1ide concentration ~PCi/g)dNumber location type (cm) 238U 226Ra 23 Th

K-355 Al Composite 0-8 2.2 1.4±0.08 2.3±0.09K-356 A2 Composite 0-8 1.6 1.4±0.03 3.2±0.06K-357 A3 Composite 0-8 8.3 1.2±0.6 2.8±0.3K-358 A4 Composite 0-8 2.1 1.5±1 3.6±0.8

aAreas from which samples were collected are shown in Fig. 5.bThe composite was comprised of a1iquots of soil from each grid block indicated; a1iquots were

mixed into a single homogeneous sample.cA depth of 0-8 cm was considered a surface sample.dlndicated errors associated with these concentrations are two standard deviations (95%

confidence level)...p.1.0

Table 22. Results of soil samples taken during the 1979 post remedial actionradiological survey at Area 6B

Sample Grid blocka Sampleb DepthC Radionuclide concentration (pCijg)dNumber location type (cm) 238U 226Ra 232Th .

K-367 Al Composite 0-8 16 e eK-368 B2 Composite 0-8 13 e e

aAreas from which samples were collected are shown in Fig. 6.bThe composite was comprised of aliquots of soil from each grid block indicated; aliquots were


confidence level).eAnalysis for this radionuclide was not performed.

Table 23. Results of soil samples taken during the 1979 post remedial actionradiological survey at Area 6C

Radionuclide concentration ~PCi/g)d238U 226Ra 23 Th

Sample Grid blocka Sampleb DepthCNumber location type (cm)

K-380 Al Composite Q-8K-381 A2 Composite Q-8K-382 81 Composite Q-8K-383 82 Composite Q-8

9.51.81.58.9

eeee

eeee

aAreas from which samples were collected are shown in Fig. 7., bThe composite was comprised of aliquots of soil from each grid block indicated; aliquots weremixed into a single homogeneous sample.

cA depth of 0-8 cm was considered a surface sample.dlndicated errors associated with these concentrations are two standard deviations (95%

confidence level).eAnalysis for this radionuclide was not performed.

0'1.....


Sample Grid blocka Sample Oepthb Radionuclide concentration ~pCi/g)CNumber location type (cm) 238U 226Ra 23 Th

K384 Al Biasedd 0-8 2.6 e eK385 A4 Biased 0-8 2.8 e eK386 Bl Biased 0-8 15 e eK387 B4 Biased 0-8 4.3 e eK388 B5 Biased 0-8 4.8 e eK389 01 Biased 0-8 12 e eK399 Trench #1 Composite! 0-8 3.3 1.5±0.03 1. 5±0.06K401 Trench #2 Composite 0-8 30 1.2±0.08 1.1±0.03K403 Trench #3 Composite 0-8 7.8 1.3±0.4 1.6±0.13 tTlK405 Trench #3 Biased 0-8 140 Ne e

(north end)

aAreas from which samples were collected are shown in Figs. 8 and 9.bA depth of 0-8 cm was considered a surface sample.clndicated errors associated with these concentrations are two standard deviations (95% confidence level).dSamples were taken from locations showing elevated gamma measurements.eAnalysis for this radionuclide was not performed.!Composite was comprised of aliquots of soil from each grid block indicated; aliquots were

mixed into a single homogeneous sample.

Table 25. Results of soil samples taken during the 1979 post remedial actionradiological survey at Area 6E

Sample Grid blocka Sample DepthbNumber location type (cm)

--K-342 A2 Biasedd 0-8K-188 AI, A2, Bl, Composite! 0-8

B2

Radionuclide concentration ~pCi/g)C238U 226Ra 23 Th

24 e e12 2.1±0.06 1.9±0.2

aAreas from which samples were collected are shown in Fig. 10.bA depth of 0-8 cm was considered a surface sample.cIndicated errors associated with these concentrations are two standard deviations (95%

confidence level).dsample was taken from location showing elevated gamma measurements.eAnalysis for this radionuclide was not performed.!Composite was comprised of aliquots of soil from each grid block indicated; aliquots were

mixed into a single homogeneous sample. 01W

Table 26. Results of soil samples taken during the 1979 post remedial actionradiological survey, at Area 6F -

Sample Grid blocka Sample Depthb Radionuclide concentration (pCi/g)cNumber location type (cm) 238U 226Ra 232Th

K-409 A1-1\3 , Bl-£3, composited 0-8 21 e eCl-(3

Biased!K-378 B2 0-8 70 e eK-379 B3 Biased 0-8 50 e e

aAreas from which samples were collected are shown in Fig. 11.bA depth of 0-8 cm was considered a surface sample.crndicated errors associated with these concentrations are two standard deviations (95%

confidence level).dThe composite was comprised of aliquots of soil from each grid block indicated; aliquots were

mixed into a single homogeneous sample.eAnalysis for this radionuclide was not performed.!Samples were taken from location showing elevated gamma measurements.

U1-I:=-

Table 27. Results of soil samples taken during the 1979 post remedial actionradiological survey at Area 6G

Sample Grid blocka Sample Depthb Radionuclide concentration ~PCi/g)CNumber location type (cm) 238U 226Ra 23 Th

K-345 Al composited D-8 70 e eK-346 A2 Composite 0-8 5.3 e eK-347 A3 Composite 0-8 12 e eK-348 Bl Composite D-8 1.7 e eK-349 B2 Composite 0-8 20 e eK-350 B3 Composite 0-8 20 e eK-351 Cl Composite 0-8 24 e eK-352 C2 Composite D-8 13 e eK-353 C3 Composiye 0-8 7.6 e eK-343 Al Biased 0-8 60 e eK-344 A2 Biased 0-8 50 e e

aAreas from which samples were collected are shown in Fig. 12.bA depth of 0-8 cm was considered a surface sample.crndicated errors associated with these concentrations are two standard deviations (95%

confidence level).dThe composite was comprised of aliquots of soil from each grid block indicated; aliquotes were

mixed into a single homogeneous sample.eAnalysis for this radionuclide was not performed.fSamples were taken from locations showing elevated gamma exposure rates.

U1U1

Table 28. Results of soil samples taken during the 1979 post remedial actionradiological survey at Area 6H

SampleNumber

Grid blockalocation

Samplebtype

DepthC(cm)

Radionuclide concentration ~PCi/g)d238U 226Ra 23 Th

K-166 AI, A2, 81,82

Composite 0-8 11 1.3±0.04 1.3±0.04

aArea from which sample was collected is shown in Fig. 13.bThe composite was comprised of aliquots of soil from each grid block indicated; aliquots were


confidence level).


Radionuclide concentration ~PCi/g)d23BU 226Ra 23 Th

Sample Grid blocka Sampleb DepthCNumber location type (cm)

-K-361 Al Composite 0-8K-362 A2 Composite 0-8K-363 A3 Composite 0-8K-364 Bl Composite 0-8K-365 B2 Composite 0-8K-366 B3 Composite 0-8

5.72.71.3

1131.1

1. 6±0. 091.2±0.05

0.84±0.021.6±0.046.6±0.3

0.69±0.1

1. 7±0. 31. 3±0.1

O. 91±0. 091. 7±0.061.2±0.2

0.86±0.06

aAreas from which samples were collected are shown in Fig. 14.bThe composite was comprised of aliquots of soil from each grid block indicated; aliquots were

mixed into a single homogeneous sample.cA depth of 0-8 cm was considered a surface sample.d1ndicated errors associated with these concentrations are two standard deviations (95%

confidence level).

(J'1-....J

Table 30. Results of soil samples taken during thp 1979 post remedial actionradiological survey at Area 6J

Radionuc1ide concentration (pCi/g)c238U 226Ra 232Th

Sample Grid b10cka Sample DepthbNumber location type (cm)

K-184 AI, A2 cOmpOSi}ed Q-8K-354 Al Biased Q-8

5.241

ee

ee

aAreas from which samples were collected are shown in Fig. 15.bA depth of 0-8 cm was considered a surface sample.clndicated errors associated with these concentrations are two standard deviations (95%

confidence level).dThe composite was comprised of a1iquots of soil from each grid block indicated; a1iquots were

mixed into a single homogeneous sample.eAna1ysis for this radionuc1ide was not performed.fSamp1e was taken from location showing elevated gamma exposure rate.

U100


Sample Grid blocka Sample Depthb Radionuclide concentration ~PCi/9)CNumber location type (cm) 238U 226Ra 23 Th

K-I00 AI-AI0, 81-81 Composited O-B 9.4 1.5±0.04 1. 6±0. 08Cl-(lO

K-101 Al Systematice O-B 4.4 f fK-102 A2 Systematic O-B 3.3 f fK-103 A3 Systematic O-B 1.9 f fK-I04 A4 Systematic O-B 5.4 f fK-105 81 Systematic O-B 14 f fK-106 82 Systematic O-B 2.6 f fK-107 83 Systematic O-B 13 f fK-I08 84 Systematic O-B 27 f fK-109 Cl Systematic O-B 5.2 f fK-110 C2 Systematic O-B 1.3 f fK-lll C3 Systematic O-B 5.4 f f U1K-1l2 C4 Systematic O-B 2.4 f f \0

aAreas from which samples were collected are shown in Fig. 16.bA depth of O-B cm was considered a surface sample.clndicated errors associated with these concentrations are two standard deviations (95%


mixed into a single homogeneous sample.eApproximately 400 g of soil were taken from the center of each grid block.fAnalysis for this radionuclide was not performed.


Sample Grid blocka Sample Depthb Radionuclide concentration (pCi/g)oNumber location type (cm) 238U 226Ra 232Th -

K-114 A1-A5, D1-D5 Composited 0-8 16.3 0.9±0.048 1. 0±0.056K-115 A6-A10, D6-D10 Composite 0-8 15.5 0.9±0.04 0.9±0.04K-116 A1 Systematice 0-8 16.2 f fK-339 A2 Systematic 0-8 1.1 f fK-118 A3 Systematic 0-8 34.7 f fK-119 A4 Systematic 0-8 10.6 f fK-120 A5 Systematic 0-8 30.7 f fK-121 A6 Systematic 0-8 7.7 f fK-122 A7 Systematic 0-8 25.2 f fK-340 A8 Systematic 0-8 51g f fK-124 A9 Systematic 0-8 20.2 f fK-125 A10 Systematic 0-8 1.1 f fK-126 B1 Systematic 0-8 34.3 f fK-127 B2 Systematic 0-8 8.4 f f

0'\0

K-128 B3 Systematic 0-8 12.5 f fK-129 B4 Systematic 0-8 19.6 f fK-130 B5 Systematic 0-8 7.7 f fK-131 B6 Systematic 0-8 21.7 f fK-132 B7 Systematic 0-8 22.9 f fK-133 B8 Systematic 0-8 12.8 f fK-134 B9 Systematic 0-8 2.1 f fK-135 B10 Systematic 0-8 0.6 f fK-136 C1 Systematic 0-8 4.2 f fK-137 C2 Systematic 0-8 5.1 f f

Tab1e 32. (conti nued)

Sample Grid blocka Sample Oepthb Radionuclide concentration ~PCi/9)CNumber location type (cm) 238U 226Ra 23 Th

K-138 C3 Systematic 0-8 4.9 f fK-139 C4 Systematic 0-8 13.6 f fK-140 C5 Systematic 0-8 5.9 f fK-141 C6 Systematic 0-8 9.8 f fK-341 C7 Systematic 0-8 14.7 f fK-143 C8 Systematic 0-8 7.3 f fK-144 C9 Systematic 0-8 10.5 f fK-145 ClO Systematic 0-8 3.0 f fK-146 01 Systematic 0-8 4.9 f fK-147 02 Systematic 0-8 2.6 f fK-148 03 Systematic 0-8 5.3 f fK-149 04 Systematic 0-8 16.6 f fK-150 05 Systematic 0-8 3.0 f fK-151 06 Systematic 0-8 3.8 f fK-152 07 Systematic 0-8 10.4 f fK-153 08 Systematic 0-8 4.9 f fK-154 09 Systematic 0-8 1.5 f f 0"1K-155 010 Systema1iic 0-8 2.3 f f ......K-157 B2, C2, 02 Biased 0-8 15.4 1.0±0.04 1. 06±0.06

(within trench)K-160 A5, B5, C5, 05 Biased 0-8 19.3 1. o±o. 04 1. 02±0. 04

(within trench)

aAreas from which samples were collected are shown in Fig. 17.bA depth of 0-8 cm was considered a surface sample.c1ndicated errors associated with these concentrations are two standard deviations (95%


mixed into a single homogeneous sample.eApproximately 400 g of soil were taken from the center of each grid block.fAnalysis for this radionuclide was not performed.

gContaminated soil probably spilled over into the sampling area during excavation.

hSamples were taken from locations showing elevated gamma exposure rates.


SampleNumber

Grid blockalocation

Sampletype

Depthb(cm)

Radionuclide concentration ~PCi/9)O238U 226Ra 23 Th

K-98 A1-A4, Bl-84,C1-G4

Composited 0-8 1 1.7±0.04 1.2±0.06

aArea from which sample was collected is shown in Fig. 18.bA depth of 0-8 cm was considered a surface sample.°rndicated errors associated with these concentrations are two standard deviations (95%


mixed into a single homogeneous sample.

mN


Grid b10cka Sample Depth Radionuc1ide concentration ~PCi/g)bSample location type (cm) 238U 226Ra 23 Th

KT13Ac 7+15, 520R Biasedd 0-30 1.6 1.7±0.05 1.6±0.07KT13B 7+15, 520R Biased 30-46 4.6 9.1±0.2 4.05±0.1KT13B1 7+15, 520R Biased 30-46 5.2 13±0.3 4.9±0.1KT13C 7+15, 520R Biased 182 0.55 0.52±0.04 0.66±0.04K395 7+21, 520R Biased 91 0.4 0.5±0.06 0.6±0.08K396 7+15, 526R Biased 91 1.09 1.04±0.1 0.76±0.1K397 7+9, 520R Biased 91 0.91 0.6±0.09 0.72±0.06K398 7+15, 514 Biased 91 2.7 2.6±0.05 2.4±8

aGrid block locations are shown in Fig."lblndicated errors associated with these concentrations are two standared deviations (95%

confidence level).cSamp1es were taken from the same location at different depths.dSamp1es were taken from locations showing maximum gamma exposure rates.

())

w

64

Tab1e 35. Radionuc1ide concentrations in water samp1estaken November 1979

Radionuc1ide concentrations (pCi/L)aSamp1e 2l0Pb 226Ra 230Th 238U

KW5

Table 36. Summary of soil data collected during post decontaminationactivities at the former Kellex Laboratory site

Grid block Averageradionuclideconcentration (pCi/g) Maximum 238UArea Samplea location 238U 226Ra 232Th concentration (pCi/g)

4 K-46 A-E 1.5 2.6 1.3 1.55 K-391 Trench E2 1.8 2.1 1.9 2.26A K-357 A3 3.6 1.4 3 8.36B K-367 Al 14.5 a a 166C K-380 Al 5.4 a a 9.560 K-386 bl 6.9 a a 1560 K-399 Trench #1 3.3 1.5 1.5 Ib560 K-401 Trench #2 30 1.2 1.1 3060 K-403 Trench #3 7.8 1.3 1.6 140b6E K-188 A~ 12 2.1 1.9 12b 0\6F K-378 B2 21 70

(Jl

a a6G K-345 Al 19.2 a a 70

b6H K-166 A~ 11 1.3 1.3 1161 K-364 Bl 4.1 2. 1 1.3 116J K-354 Al 5.2 a a 407 K-I08 B4 7.1 a a 308 K-340 A8 12 a a 509 K-338 B4 1.03 1.7 1.2 1.1

10 KTl3Bl 7+15, 520R 2. 1 3.6 1.9 5.2

aRefer to Figs. 2-19 for sample location.bOnly one sample was taken in area.aAnalysis of radionuclide concentration was not performed.

concurrences mar 1 - energy.gov · concurrences mr. frank casolito new jersey department of...

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