Agency for Toxic Substance and Disease Registry's (ATSDR) Fish Hazardous Chemical Study Report for Putah Creek

Davis South Campus Superfund Oversight Committee
Rt.2 Box 2879
Davis, CA 95616
email [email protected]

Regent of the University of California
300 Lakeside Drive, 22nd Floor
Oakland, CA 94612-3559

Dear Regents,

Enclosed please find a copy of the Agency for Toxic Substance and Disease Registry's (ATSDR) fish hazardous chemical study report for Putah Creek. This report was prepared as part of ATSDR's public health assessment for the LEHR Superfund site on the University of California, Davis campus. ATSDR is conducting public health assessments of all sites listed or proposed for listing on the National Priorities List (NPL or Superfund list). The LEHR site was listed in May of 1994.

I wrote a letter to the Regents on March 17, 1997 advising you of ATSDR's soon to be released report and asked for the Regents to delay their certification of UCD's EIR for its replacement Wastewater Treatment Plant and to delay amending UCD's long range development plan until the Regents and others had an opportunity to review ATSDR's report. It is my understanding that the Regents certified UCD's EIR and amended the LRDP at their meeting March 20th before reviewing the ATSDR report which was released April 4, 1997.

ATSDR's report confirms the need for UCD to begin to adequately and reliably monitor and investigate all of its wastewater and stormwater discharges to Putah Creek which are causing excessive bioaccumulation of hazardous constituents in Putah Creek aquatic life which represent a public health and/or environmental hazard. The ATSDR report recommends posting Putah Creek to warn the public of a general fish advisory for areas of Putah Creek near the former LEHR site for elevated concentrations of mercury and lead. The recommended follow-up investigation must include more then the LEHR Superfund site discharges as UCD has other wastewater and stormwater discharges to Putah Creek at the location of the LEHR site study where excessive bioaccumulation of hazardous chemicals was found. It is important to note that excessive concentrations of hazardous chemicals were not found in fish tissue either upstream or downstream of the area where UCD's wastewater treatment plant discharges its partially treated wastewaters to the Creek. The ATSDR report confirms what the public has been stating for years that "UCD's wastewater and stormwater discharges are putting the public health and the environment at risk."

One of the reasons that I requested the Regents delay their certification of UCD's EIR is that Dr. G. Fred Lee, an internationally recognized expert on water quality issues, found in his review ("Review of the Technical Deficiencies in the University of California, Davis Draft Environmental Impact Report for the Wastewater Treatment Plant Replacement Project dated October 1996, Comments submitted by G. Fred Lee, PhD, DEE, December 1996) of UCD's campus wastewater treatment plant proposed replacement facility's EIR that the proposed replacement facility will be inadequate and will most likely not be effective in treating some of the waste in the wastewater which will be discharged to Putah Creek. Dr. Lee presented his comments before the ATSDR report was made available to him and the public. Now ATSDR's report confirms that the public should be even more concerned that the UCD replacement plant will allow UCD's wastewater discharges to continue to place public health and the environment at risk.

DSCSOC requested UCD to prepare a credible LEHR storm and surface water runoff monitoring plan before the first storm event of the 1996-1997 season as part of the LEHR site investigation. To date, UCD has not presented a plan and another season of storm events has passed. There is a need for those in authority at the University of California to request that UCD immediately, adequately and reliably investigate and monitor its wastewater and stormwater discharges and there is a need for the Regents to reconsider UCD's EIR for the Replacement Wastewater Treatment Plant in order to protect the public and the environment from the risks associated with UCD's wastewater and stormwater discharges.

I have enclosed a copy of Dr. Lee's review of the ATSDR report which he provided to me.

If any of the Regents have questions about Dr. Lee's comments, please contact him. If you have questions about this letter or DSCSOC, please contact me.

Sincerely,

Julie Roth, Ex. Dir.

cc: Governor Pete Wilson
Dr. G. Fred Lee
Dr. William H. Taylor
James Strock
Chancellor Larry Vanderhoef
Yolo County Environmental Health
Solano County Environmental Heath

Health Consultation
Fish Sampling in Putah Creek, 1996

Laboratory for Energy-Related Health Research
Davis, California

CERCLIS NO. CA2890190000

April 4, 1997

Prepared by
Agency for Toxic Substances and Disease Registry
Division of Health Assessment and Consultation
Federal Facilities Assessment Branch
Energy Section

BACKGROUND

The Agency for Toxic Substances and Disease Registry (ATSDR) is mandated by Congress under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) to conduct public health assessments at all sites listed or proposed for listing on the National Priorities List (NPL, or Superfund list). The Laboratory for Energy-Related Health Research (LEHR) in Davis, California, was listed on the NPL in May 1994.

ATSDR staff first visited the LEHR site in July 1995. As a result of that visit and after reviewing documents pertaining to the site, we issued a site summary report in December 1995. In that report, we recommended that the fish in Putah Creek, adjacent to the LEHR site, be sampled to ensure that people who eat the fish from the creek are not being exposed to unsafe levels of contamination. As a followup to this recommendation, ATSDR asked the Environmental Protection Agency's (EPA's) National Air and Radiation Environmental Laboratory (NAREL) to assist us by collecting and analyzing fish from Putah Creek near the LEHR site. NAREL completed the fish screening survey in September 1996, and this report contains a summary of the results of that study.

EPA NAREL staff asked EPA Region IX scientists to help with this fish survey. EPA Region IX scientists collected a total of 141 fish and crayfish from four locations along Putah Creek in a two week period during August and September 1996. They also collected water and sediment samples from the creek at the same four locations. They packaged the samples and sent them to the NAREL in Montgomery, Alabama, for analysis. NAREL scientists filleted the fish and removed the crayfish tails and, in some cases, combined them to have enough sample for analysis [1].

We have attached the data from the laboratory analyses of fish, water, and sediment collected from Putah Creek to the end of this report. ATSDR scientists and NAREL scientists reviewed the NAREL data [2]. ATSDR offers the following conclusions and recommendations:

CONCLUSIONS

1. Mercury and lead concentrations in some fish collected from Putah Creek pose a public health hazard.

2. Based on the samples that EPA Region IX collected in August and September 1996, neither the water nor the sediment in Putah Creek directly poses a public health hazard.

3. Radionuclides, organic pesticides, polychlorinated biphenyls (PCBs), and metals other than mercury and lead were not present in the fish, water, or sediment collected from Putah Creek in concentrations that pose a public health hazard.

RECOMMENDATIONS

1. Conduct an additional fish study to define the concentration of mercury and lead in different fish species within selected length ranges.

2. Until further data are available, post a general fish advisory for areas of Putah Creek near the former LEHR site; elevated concentrations of mercury and lead in the collected fish justify the advisory.

DISCUSSION

Mercury and lead in fish and crayfish collected from Putah Creek were present at levels that pose a public health hazard. The fish and crayfish that contain elevated levels of mercury or lead were collected at the location (Site #1) nearest the LEHR site. The high concentrations of mercury (0.69 milligrams of mercury per kilogram of wet fish [mg Hg/kg-wet fish]) and lead (1.06 milligrams lead per kilogram of wet fish [mg Pb/kg-wet fish]) were measured in two separate composites of fish fillets (or fish fillets and crayfish tails); each composite was made up of three different species of fish (six species in all). Composite 1 at Site #1 had approximately four times the mercury concentration of Composite 2, and Composite 2 had approximately four times the lead concentration of Composite 1. These data suggest that the bioconcentration of mercury and lead may vary by species of fish. In addition, because these samples are composites, these data reflect average concentrations. This means that one or two fish species may have much higher levels of mercury or lead than the maximum levels reported, and other species may have little or no mercury or lead.

ATSDR scientists note that the highest concentrations of mercury and lead reported by NAREL in these samples are higher than concentrations that may be considered toxic to people who would eat these fish frequently. The actual hazard to people depends on how often the people eat the contaminated fish and how much of the fish they eat. Because we do not know how much fish people actually eat from Putah Creek, we based our evaluation on estimated average fish consumption rates for the general U.S. population [3, 4].

Our conclusions and recommendations are based on a limited amount of data because we combined many fish into composite samples to have sufficient sample sizes to perform all the analyses we had planned.

We found that contamination is not at levels that pose a health hazard in the water or sediment. However, lead was in all the sediment samples, and mercury was in those sediment samples from Site #1--the same location where the fish with the highest concentration of mercury were collected.

Mercury and lead are especially toxic to fetuses, infants, and children. Both mercury and lead affect the central nervous system; both methylmercury (the most prevalent form of mercury found in fish) and lead are able to cross the placental and blood-brain barriers in children and cause permanent brain damage. Early signs of mercury poisoning are often nonspecific, e.g., malaise, blurred vision, or hearing loss; higher blood levels of mercury will cause kidney damage. Effects of lead poisoning in children are similar to those of mercury poisoning: impaired neurological development, lower IQ scores, and hearing loss. At significantly elevated blood levels, lead can interfere with normal cell metabolism and induce anemia [5, 6].

We recommend additional fish sampling to differentiate mercury and lead contamination across different species and sizes of fish in Putah Creek. Fish size or length is a surrogate for fish age. Since the fish can bioconcentrate the contaminants (mercury and lead), we expect the older fish will have the highest concentrations of contaminants. Additional fish sampling can clarify whether people who catch fish in Putah Creek should limit their consumption of those fish to certain species and size. Unlike the initial screening survey, which investigated many different contaminants and required large sample weights for the large number of different analytes, the next fishing survey should have to address mercury and lead contamination only. The laboratory analyses for mercury and lead require only small amounts (50 grams wet weight, total) of fish.

For questions or comments, please contact Dr. William H. Taylor, Health Assessor, Agency for Toxic Substances and Disease Registry, Mailstop E-56, Atlanta, Georgia 30333, 404-639-6035.

ATSDR is performing a public health assessment on the LEHR Site. The ATSDR public health assessment is scheduled for release in 1998.

PREPARERS OF REPORT

William H. Taylor, PhD
Health Assessor
Federal Facilities Assessment Branch
ATSDR

Clinton Cox, PhD, CIH, PE
NAREL

REVIEWERS OF REPORT

Burt J. Cooper
Chief, Energy Section
Federal Facilities Assessment Branch
ATSDR

Sandra G. Isaacs
Chief, Federal Facilities Assessment Branch
ATSDR

J. Scott Telofski, PE
NAREL

Vicki D. Lloyd
NAREL

WRITER-EDITOR

Ronald E. Hatcher
Program Evaluation, Records and Information Services Branch
ATSDR

REFERENCES

1. Environmental Protection Agency, National Air and Radiation Environmental Laboratory. Sampling and analysis guidelines for fish, sediment, and water samples from the Putah Creek adjacent to the former Laboratory for Energy-Related Health Research, Davis, CA. 1997 Aug 24.

2. Environmental Protection Agency, National Air and Radiation Environmental Laboratory. Concentrations of selected radionuclides and chemicals in fish, sediment, and water collected from the Putah Creek near the former Laboratory for Energy-Related Health Research, Davis, CA. 1997 Mar 31.

3. Environmental Protection Agency. Guidance for assessing chemical contamination data for use in fish advisories, volume 1, fish sampling and analysis, second edition; 1995 Sep. Report No.:EPA 823-R-95-007,

4. U.S. Department of Agriculture. Food and nutrient intakes by individuals in the United States, 1 day, 1987-1988, nationwide food consumption survey; 1993 Sep. Report No.: 87-I-1.

5. Agency for Toxic Substances and Disease Registry. Toxicological profile for mercury (update). Atlanta: US Department of Health and Human Services, Public Health Service, 1994.

6. Agency for Toxic Substances and Disease Registry. Toxicological profile for lead (update). Atlanta: US Department of Health and Human Services, Public Health Service, 1993.

DATA TABLES FROM ATSDR / EPA NAREL FISH SAMPLING SURVEY, PUTAH CREEK, DAVIS CALIFORNIA, AUGUST-SEPTEMBER 1996

Table 1. Sampling Locations in Putah Creek Adjacent to the LEHR Site, Aug 27-Sep 12, 1996

Sampling Locations for Fish, Sediment, and Water

Sampling Location

Latitude

Longitude

1

N 38o 31' 2.0"

W 121o 45' 22.1"

2

N 38o 31' 1.6"

W 121o 43' 58.0"

3

N 38o 31' 0.7"

W 121o 42' 46.8"

4 (background)

N 38o 31' 34.4"

W 121o 48' 42.9"

 

"Figure" 1. Putah Creek Sampling Locations

SITE NUMBER

SITE LOCATION

1.

Near University of California, Davis wastewater discharges

2.

About a mile downstream of site 1

3.

About a mile downstream of Site 2

4.

About two miles upstream of Site 1

 

Table 2. Fish Collected from Putah Creek near the Former LEHR Facility, Aug 27-Sep 12, 1996

Location

Fish Species (#)

Whole Wet Weight
(g)

Fillet Wet Weight
(g)

1

Black Crappie (2)

489

168

Bluegill (1)

136

37

Large Mouth Bass (2)

1122

421

Composite 1 (5)

1747

626

Crayfish (10)

413

38

Black Bullhead (4)

1115

209

White Catfish (2)

1492

262

Composite 2 (16)

3020

509

2

Carp (1)

1564

367

Black Bullhead (1)

212

46

Composite (2)

1776

413

Large Month Bass (1)

650

188

3

Black Crappie (2)

364

92

Large Mouth Bass (1)

1234

362

Composite 1 (3)

1598

454

Crayfish (9)

289

26

Carp (1)

1696

495

Composite 2 (10)

1985

521

White Catfish (1)

2624

670

4(background)

Bluegill (78)

1906

394

Green Sunfish (13)

627

127

Large Month Bass (3)

192

45

Crayfish (8)

221

42

White Catfish (1)

89

12

Composite (103)

3035

620

Table 3. Radiological Results for Water Collected from Putah Creek near the Former LEHR Facility

Analyte

Site #1
LEHR96.05001/X
(pCi/L)

Site #2
LEHR96.05000/X
(pCi/L)

Site #3
LEHR96.05005
(pCi/L)

Site #4
LEHR96.04998
(pCi/L)

Gross Alpha

2.571.93

3.182.19

5.712.75

NA

4.572.54

1.761.73

Gross Beta

3.632.20

5.292.46

4.412.39

NA

6.872.67

2.762.22

U-238

0.27090.0699

NA

0.34300.0798

0.38190.0813

0.37370.0698

0.27370.0678

U-234

0.63060.1101

NA

0.51390.0984

0.64140.1075

0.64650.0937

0.62380.1055

Th-230

0.04140.0289

NA

0.06240.0340

0.04560.0326

0.04800.0267

0.04110.0282

Ra-226 (y)

77.5

74.3

78.0

NA

79.2

85.6

Ra-226

0.260.03

0.220.05

0.070.01

NA

0.090.02

0.110.02

U-235

0.04630.0310

ND

0.04230.0309

0.02090.0221

0.08350.0350

0.05990.0361

Th-227

0.00950.0291

NA

0.00900.0275

0.06390.0635

0.01230.0214

0.03640.0364

Th-232

0.02380.0238

NA

0.01010.0156

0.01180.0182

0.04550.0268

0.01030.0158

Ra-228 (y)

17.0

17.1

16.8

NA

16.2

24.0

Ra-228

2.91.0

1.01.0

0.350.75

NA

-0.120.78

0.880.73

Th-228

0.02020.0680

NA

0.02400.0651

0.02840.0718

0.02310.0555

-0.03300.0518

Tl-208

ND

ND

1.673.06

NA

ND

ND

Pu-238

0.00720.0131

NA

0.02860.0317

-0.00770.0292

0.06400.0564

0.02630.0358

Pu-239 /240

-0.00120.0024

NA

0.001360.0090

0.01240.0164

0.00210.0137

0.00000.0101

K-40

51.6

54.9

51.6

NA

51.9

33.262.8

C-14

-8082

-7282

-9681

NA

-7782

NA

Ba-140

99.9

101

96.2

NA

99.0

161

Co-60

5.84

5.28

6.43

NA

5.62

8.44

Cs-137

4.52

4.31

4.16

NA

4.48

6.58

I-131

79.7

79.0

79.4

NA

80.2

101

Sr-89

-3.014.76

NA

3.784.80

NA

2.084.80

1.904.41*

Sr-90

0.5710.717

NA

-0.4000.755

NA

0.01120.757

-0.1340.667*

(y) -- measured by gamma spectrometry with a corresponding radiochemical analysis. ND -- not detected.
NA -- not analyzed. X -- designates a replicate analysis.
* Replicate analysis: Sr-89, 7.474.96 pCi/L; Sr-90, -0.7500.740 pCi/L.
"Less than value" is equal to the Minimum Detectable Concentration (MDC).

Table 4. Inorganic Results For Water Collected From Putah Creek Near The Former LEHR Facility

Analyte

CAS Number

Site #1
LEHR96.05001X
(ug/L or ppb)

Site #2
LEHR96.05000
(ug/L or ppb)

Site #3
LEHR96.05005
(ug/L or ppb)

Site #4
LEHR96.04998
(ug/L or ppb)

Antimony

7440-36-0

2.48B

4.43B

2.24B

2.52B

1.94B

Arsenic

7440-38-2

3.08B

2.03B

2.29B

3.08B

1.31B

Barium

7440-39-3

190.0B

260.0B

530.0B

570.0B

400.0B

Cadmium

7440-43-9

0.36

0.36

0.36

0.36

0.36

Chromium

7440-47-3

60.0B

60.0B

30.0B

50.0B

30.0B

Cobalt

7440-48-4

2.5

2.5

2.5

2.6B

2.5

Lead

7439-92-1

3.02

1.57B

1.26

1.52B

1.26

Mercury

7439-97-6

0.05

0.05

0.05

0.05

0.05

Nickel

7440-02-0

7.1B

8.07B

5.5

17.8B

5.5

Selenium

7782-49-2

1.07

1.07

1.07

1.07

1.07

Silver

7440-22-4

0.18

0.18

0.18

0.18

0.21B

Thallium

7440-28-0

0.80

0.80

2.01B

0.80

0.80

Vanadium

7440-62-2

7.8B

7.5B

7.2B

12.5B

6.1B

Zinc

7440-66-6

70.0

80.0

60.0

70.0

60.0

B The value is less than the Reporting Limit but greater than or equal to the Instrument Detection Limit (IDL).
X The values in the second column are from a replicate analysis.

Table 5. Organic Results For Water Collected From Putah Creek Near The Former LEHR Facility

Analyte

CAS Number

Site #1
LEHR96.05001
(ug/L or ppb)

Site #2
LEHR96.05000
(ug/L or ppb)

Site #3
LEHR96.05005
(ug/L or ppb)

Site #4
LEHR96.04997
(ug/L or ppb)

Chlordane (Total)

57-74-9

0.05

0.05

0.05

0.05

4,4"-DDT

50-29-3

0.10

0.10

0.10

0.10

Dicofol

115-32-2

0.20

0.20

0.20

0.20

Dieldrin

60-57-1

0.10

0.10

0.10

0.10

Endosulfan I

959-98-8

0.05

0.05

0.05

0.05

Endosulfan II

33213-65-9

0.10

0.10

0.10

0.10

Endrin

72-20-8

0.10

0.10

0.10

0.10

Heptachlor Epoxide

1024-57-3

0.05

0.05

0.05

0.05

Hexachlorobenzene

118-74-1

0.05

0.05

0.05

0.05

Lindane

58-89-9

0.05

0.05

0.05

0.05

Toxaphene

8001-35-2

5.0

5.0

5.0

5.0

Aroclor 1016

12674-11-2

1.0

1.0

1.0

1.0

Aroclor 1221

11104-28-2

2.0

2.0

2.0

2.0

Aroclor 1232

11141-16-5

1.0

1.0

1.0

1.0

Aroclor 1242

53469-21-9

1.0

1.0

1.0

1.0

Aroclor 1248

12672-29-6

1.0

1.0

1.0

1.0

Aroclor 1254

11097-69-1

1.0

1.0

1.0

1.0

Aroclor 1260

11096-82-5

1.0

1.0

1.0

1.0

Note: The "less than value" is the Reporting Limit, i.e., analyte was analyzed for but not detected.

Table 6. Radiological Results for Sediment Collected from Putah Creek near the Former LEHR Facility

Analyte

Site #1
LEHR96.05002/X
(pCi/g-dry)

Site #2
LEHR96.05003
(pCi/g-dry)

Site #3
LEHR96.05004
(pCi/g-dry)

Site #4
LEHR96.04999/X
(pCi/g-dry)

Gross Alpha

7.175.25

5.915.01

8.005.21

10.25.70

7.425.53

NA

Gross Beta

14.83.31

13.43.16

17.13.38

12.63.06

12.43.19

NA

U-238

0.3430.0779

0.4350.0904

0.6310.102

0.4590.0727

0.5230.0971

NA

Th-234

ND

NA

0.3990.150

ND

ND

ND

U-234

0.5550.101

0.5440.101

0.6270.100

0.5650.0810

0.4310.088

NA

Th-230

0.3690.0707

0.3870.0682

0.5760.0843

0.4880.0753

0.5490.0863

NA

Ra-226 (y)

0.6980.145

NA

1.300.223

0.8600.207

1.060.216

1.240.201

Ra-226

0.430.04

0.410.03

0.920.04

0.590.03

0.710.04

NA

Pb-214

0.3140.0158

NA

0.4810.0214

0.3850.0198

0.4840.0219

0.5610.0209

Bi-214

0.2860.0169

NA

0.4580.0230

0.3690.0212

0.4450.0238

0.5180.0219

U-235

0.02850.0275

0.06840.0400

0.08060.0400

0.04830.0250

0.06980.0392

0.07550.0122

U-235 (y)

ND

NA

0.07990.0134

ND

ND

ND

Th-227

0.01830.0254

0.04140.0308

0.02560.0248

0.02070.0207

0.05020.0366

NA

Ra-223

ND

NA

0.06810.0448

ND

ND

ND

Th-232

0.2900.0624

0.3260.0624

0.5870.0851

0.5450.0795

0.4770.0802

NA

Ra-228 (y)

0.2960.0210

NA

0.5940.0316

0.4200.0296

0.4830.0313

0.5320.0295

Ra-228

1.10.56

0.990.52

1.70.54

0.940.56

0.990.65

NA

Th-228

0.3140.0654

0.3320.0638

0.6760.0919

0.4140.0699

0.5100.0831

NA

Ra-224

0.2230.155

NA

0.4700.218

0.2760.219

0.4770.230

0.5780.207

Pb-212

0.3040.0165

NA

0.6750.0236

0.4320.0202

0.5620.0230

0.5740.0217

Bi-212

0.3490.0901

NA

0.6270.126

0.4880.105

0.5910.121

0.5010.117

Tl-208

0.1130.00936

NA

0.2160.0127

0.1540.0117

0.1730.0128

0.1990.0127

Pu-238

-0.004860.0335

-0.002720.0265

0.004750.0369

0.00000.0075

0.02240.0416

NA

Pu-239/240

0.02270.0215

0.008180.0147

0.003170.0098

0.006060.0084

0.002030.0132

NA

K-40

8.350.193

NA

13.70.271

9.830.253

9.870.266

9.920.239

Cs-137

0.01400.0057

NA

0.0167

0.02450.0079

0.0186

0.0179

Ba-140

0.308

NA

0.360

0.337

0.405

3.64

Co-60

0.0171

NA

0.0211

0.0194

0.0224

0.0201

I-131

0.250

NA

0.292

0.246

0.330

11.6

Sr-89

6.384.78+

NA

1.293.76

1.704.14

0.6734.01

2.353.84

Sr-90

-0.6620.659

NA

-0.1280.561

-0.3290.656

0.03510.612

0.1870.561

"Less than value" is equal to the Minimum Detectable Concentration (MDC). -- measured by gamma spectrometry. ND - not detected.
NA - not analyzed. + -- less than MDC. X - designates replicate analysis.

Table 7. Inorganic Results for Sediment Collected from Putah Creek near the Former LEHR Facility

Analyte

CAS Number

Site #1
LEHR96.05002X
(mg/kg or ppm)

Site #2
LEHR96.05003
(mg/kg or ppm)

Site #3
LEHR96.05004
(mg/kg or ppm)

Site #4
LEHR96.04999X
(mg/kg or ppm)

Antimony

7440-36-0

0.64B

0.54B

1.11B

0.92B

1.36

NA

Arsenic

7440-38-2

6.19

NA

10.12

5.92

12.09

12.35

Barium

7440-39-3

49.36

57.22B

98.05B

82.77B

127.01B

NA

Cadmium

7440-43-9

0.09

NA

0.09

0.10

0.48

0.19B

Chromium

7440-47-3

239.94

292.32

89.79

220.18

173.32

NA

Cobalt

7440-48-4

20.9

20.91

15.0

16.2

21.3

NA

Lead

7439-92-1

7.22

NA

9.93

9.06

9.27

9.52

Mercury

7439-97-6

0.15

0.18

0.03

0.03

0.03

NA

Nickel

7440-02-0

248

247.69

65.1

175

177

NA

Selenium

7782-49-2

0.29B

NA

0.31B

0.37B

0.40B

0.33B

Silver

7440-22-4

0.42

NA

0.07B

0.25B

0.11B

0.05B

Thallium

7440-28-0

0.21

NA

0.23B

0.22

0.22B

0.22B

Vanadium

7440-62-2

42.00

42.02

56.9

43.1

59.3

NA

Zinc

7440-66-6

102.45

150.32

162.04

116.99

105.32

NA

B The value is less than the Reporting Limit but greater than or equal to the Instrument Detection Limit (IDL).
X The values in the second column are from a replicate analysis. NA -- not analyzed.

Table 8. Organic Results for Sediment Collected from Putah Creek near the Former LEHR Facility

AnalyteChlordane (Total)

57-74-9

2.2

2.2

2.3

2.2

4,4"-DDT

50-29-3

4.3

4.2

4.5

4.4

Dicofol

115-32-2

8.6

8.4

9.0

8.7

Dieldrin

60-57-1

4.3

4.2

4.5

2.2

Endosulfan I

959-98-8

2.2

2.2

2.3

2.2

Endosulfan II

33213-65-9

4.3

4.2

4.5

4.4

Endrin

72-20-8

4.3

4.2

4.5

4.4

Heptachlor Epoxide

1024-57-3

2.2

2.2

2.3

2.2

Hexachlorobenzene

118-74-1

2.2

2.2

2.3

2.2

Lindane

58-89-9

2.2

2.2

2.3

2.2

Toxaphene

8001-35-2

220

220

230

220

Aroclor 1016

12674-11-2

43

42

45

43

Aroclor 1221

11104-28-2

86

84

92

88

Aroclor 1232

11141-16-5

43

42

45

43

Aroclor 1242

53469-21-9

43

42

45

43

Aroclor 1248

12672-29-6

43

42

45

43

Aroclor 1254

11097-69-1

43

42

45

43

Aroclor 1260

11096-82-5

43

42

45

43

Note: The "less than value" is the Reporting Limit, i.e., analyte was analyzed for but not detected.

Table 9. Radiological Results for Fish Collected from Putah Creek near the Former LEHR Facility

Analyte

Site #1, Comp 1/Comp 1/Comp 2
LEHR96.05987/7X/8

(pCi/g-wet)

Site #2, Comp/LMB
LEHR96.05989/73
(pCi/g-wet)

Site #3, Comp 1, Comp 2, WCF
LEHR96.05990/91/81
(pCi/g-wet)

Site #4, Comp
LEHR96.05992
(pCi/g-wet)

Gross Alpha

0.09330.0792

NA

0.09170.0859

0.008250.0547

NA

0.0000.0580

-0.002850.0403

0.02070.0408

0.04760.0732

Gross Beta

3.360.142

NA

3.130.143

3.120.135

NA

3.440.149

3.130.135

3.290.128

3.140.165

U-238

0.0005240.000349

NA

0.001220.000521

0.0006460.000421

0.0005400.000473

0.0008630.000490

0.0008760.000471

0.0001020.000187

0.001310.000528

Th-234

ND

ND

ND

ND

ND

ND

ND

ND

ND

U-234

0.0004750.000353

NA

0.001100.000500

0.0008550.000475

0.0007310.000546

0.001770.000639

0.001700.000636

0.000408.0.000314

0.001500.000570

Th-230

0.0000990.000114

NA

0.001770.000554

0.0008120.000334

0.0002220.000216

0.0007110.000379

0.0005620.000308

0.0005460.000368

0.001130.000674

Ra-226 (y)

0.0907

0.0891

0.198

0.181

0.279

0.354

0.108

p0.0799

p0.0910

Ra-226

0.030.01

NA

0.030.01

0.070.01

0.030.01

-0.010.01

0.010.01

0.040.01*

0.020.01

Pb-214

ND

ND

ND

ND

ND

ND

ND

ND

ND

Bi-214

ND

ND

ND

ND

ND

ND

ND

ND

ND

U-235

ND

ND

ND

ND

ND

ND

ND

ND

ND

U-235 (y)

ND

ND

ND

ND

ND

ND

ND

ND

ND

Th-227

ND

ND

ND

ND

ND

ND

ND

ND

ND

Ra-223

ND

ND

ND

ND

ND

ND

ND

ND

ND

Th-232

0.0001540.000149

NA

0.004750.000907

0.004100.000753

0.0000.000110

0.0001520.000211

0.0002880.000217

-0.00004940.000262

0.0003540.000391

Ra-228 (y)

0.0203

0.0317

0.0506

0.0469

0.0619

0.0685

0.0340

0.0289

p0.0223

Ra-228

0.180.15

NA

0.070.15

0.060.13

0.100.18

0.190.18

0.160.17

0.400.20

0.200.19

Th-228

-0.001950.000263

NA

0.003480.00102

0.003510.000902

-0.002900.000538

-0.0005100.000633

0.0006790.000414

-0.0003680.000639

0.0006070.00121

Ra-224

ND

ND

ND

ND

ND

ND

ND

ND

ND

Pb-212

ND

ND

ND

ND

ND

0.02090.0216

ND

ND

ND

Bi-212

ND

ND

ND

ND

ND

ND

ND

ND

ND

Tl-208

ND

ND

ND

ND

ND

ND

ND

ND

ND

Pu-238

-0.0003870.000415

0.00003620.000114

-0.0001690.000313

0.00001070.000126

NA

0.00005160.000103

0.0003870.000485

0.0001920.000339

0.0002150.000625

Pu-239/240

0.0000.000141

0.00003620.000114

0.00005630.000172

0.00003210.0000641

NA

0.00008610.000150

0.00007380.000165

0.0000.000

-0.00005370.0000760

K-40

3.110.101

3.040.147

2.540.224

2.840.174

3.410.229

2.940.211

2.990.166

3.010.137

2.620.0948

C-14

4.91.8

NA

5.41.7

3.91.9

2.42.1

3.62.8

4.81.6

3.81.6*

2014

Cs-137

0.00538

0.00739

0.0157

0.0132

0.0175

0.0192

0.00929

p0.00657

p0.00571

Ba-140

0.251

0.594

0.565

1.13

0.268

0.861

0.356

p0.0907

p0.398

Co-60

0.00665

0.0100

0.0129

0.0151

0.0221

0.0248

0.0131

p0.0106

p0.00802

Hg-203

0.01370.00431

0.01090.0054

ND

ND

ND

ND

ND

ND

ND

I-131

0.298

0.989

0.711

2.45

0.188

1.08

0.387

p0.0550

p0.575

Sr-89

0.08240.0691+

0.05610.0954

-0.003650.0625

-0.02080.0477

NA

0.03690.0664

-0.01230.0634

0.0002160.0537

-0.05370.113

Sr-90

-0.009030.00954

-0.003660.0133

0.002170.0103

0.006180.00686

NA

-0.007170.0111

0.004170.0107

0.003000.00882

0.01390.0163

y-- measured by gamma spectrometry with a corresponding radiochemical analysis.
ND -- not detected.
NA -- not analyzed.
+ -- less than Minimum Detectable Concentration (MDC).
X -- designates a replicate analysis.
*-- Replicate analysis, C-14, 151.8; Ra-226, 0.030.01; Ra-228, 0.640.28.
"Less than value" is equal to the MDC.

Table 10. Inorganic Results for Fish Collected from Putah Creek near the Former LEHR Facility

Analyte

CAS Number

Site #1, Comp 1/2
LEHR96.05987/8
(mg/kg-wet or ppm-wet)

Site #2, LMB/Comp
LEHR96.05973/89
(mg/kg-wet or ppm-wet)

Site #3, WCF/WCF/Comp 1/Comp 2
LEHR96.05981/81X/90/91
(mg/kg-wet or ppm-wet)

Site #4, Comp
LEHR96.05992
(mg/kg-wet or ppm-wet)

Antimony

7440-36-0

0.38B

0.49B

0.70

0.44B

0.75

0.52

0.53

0.41B

0.84

Arsenic

7440-38-2

0.06

0.06

0.06

0.06

0.06

0.06

0.06

0.11B

0.06

Barium

7440-39-3

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

12.0

Cadmium

7440-43-9

0.02

0.02

0.02

0.02

0.02

0.02

0.02

0.02

0.02

Chromium

7440-47-3

9.10

9.10

9.10

9.10

9.10

9.10

9.10

9.10

9.10

Cobalt

7440-48-4

0.25

0.25

0.45

0.25

0.25

0.25

0.25

0.29B

0.25

Lead

7439-92-1

0.28B

1.06

0.20B

0.17B

0.17B

0.08

0.24B

0.19B

0.08

Mercury

7439-97-6

0.69

0.15

0.25

0.16

0.48

0.46

0.24

0.13

0.13

Nickel

7440-02-0

0.55

0.90B

0.55

0.55

0.55

0.55

0.55

0.55

0.55

Selenium

7782-49-2

0.27B

0.08

0.25B

0.25B

0.08

0.08

0.23B

0.36B

0.33B

Silver

7440-22-4

0.04B

0.03B

0.65

0.02B

0.03B

0.03B

0.01B

0.01B

0.01B

Thallium

7440-28-0

0.06

0.06

0.06

0.06

0.12B

0.10B

0.06

0.06

0.06

Vanadium

7440-62-2

0.17

0.17

0.17

0.17

0.17

0.17

0.17

0.17

0.17

Zinc

7440-66-6

9.80

8.70

12.0

13.4

6.10

11.6

8.70

15.3

17.60

B The value is less than the Reporting Limit but greater than or equal to the Instrument Detection Limit (IDL).
X The values in the second column are from a replicate analysis.

Table 11. Organic Results for Fish Collected from Putah Creek near the Former LEHR Facility

Analyte

CAS Number

Site #1, Comp 1/2
LEHR96.05987/8

(g/kg-wet or ppb-wet)

Site #2, LMB/Comp

LEHR96.05973/89
(g/kg-wet or
ppb-wet)

Site #3, WCF/
Comp 1/Comp 2
LEHR96.05981/90/91
(g/kg-wet or ppb-wet)

Site #4, Comp
LEHR96.05992
(g/kg-wet or ppb-wet)

Chlordane (Total)

57-74-9

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

4,4"-DDT

50-29-3

10.0

10.0

10.0

10.0

20.0

10.0

10.0

10.0

Dicofol

115-32-2

10.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

Dieldrin

60-57-1

10.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

Endosulfan I

959-98-8

5.0

5.0

5.0

5.0

5.1

5.0

5.0

5.0

Endosulfan II

33213-65-9

10.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

Endrin

72-20-8

10.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

Heptachlor Epoxide

1024-57-3

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

Hexachlorobenzene

118-74-1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

Lindane

58-89-9

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

Toxaphene

8001-35-2

510

510

510

510

510

510

510

510

Aroclor 1016

12674-11-2

100

100

100

100

100

100

100

100

Aroclor 1221

11104-28-2

200

200

200

200

200

200

200

200

Aroclor 1232

11141-16-5

100

100

100

100

100

100

100

100

Aroclor 1242

53469-21-9

100

100

100

100

100

100

100

100

Aroclor 1248

12672-29-6

100

100

100

100

100

100

100

100

Aroclor 1254

11097-69-1

100

100

100

100

100

100

100

100

Aroclor 1260

11096-82-5

100

100

100

100

100

100

100

100

Note: The "less than value" is the Reporting Limit, i.e., analyte was analyzed for but not detected.

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