PUBLIC HEALTH ASSESSMENT

EVALUATION OF CURRENT (1990 TO 2003) AND FUTURE CHEMICAL EXPOSURES IN THE VICINITY OF THE OAK RIDGE RESERVATION
U.S. DEPARTMENT OF ENERGY OAK RIDGE RESERVATION
OAK RIDGE, ANDERSON COUNTY, TENNESSEE


TABLES (cont.)

Table 28. Estimated Exposure Doses for Chemicals in Fish Caught On Site Compared to Noncancer Screening Guidelines

Substance Name

Species

Minimum (ppm)

Maximum (ppm)

2nd Tier Screening Conc.
(ppm)

Noncancer Screening Guideline (mg/kg/day)

Source

Subsistence Estimated Exposure Dose (mg/kg/day)

Does the Subsistence Estimated Exposure Dose Exceed the Noncancer Screening Guideline?

Recreational Estimated Exposure Dose (mg/kg/day)

Does the Recreational Estimated Exposure Dose Exceed the Noncancer Screening Guideline?

Child

Adult

Child

Adult

Child

Adult

Child

Adult

Inorganics

Arsenic

Creek chub

0.0855

0.112

0.11

0.0003

CMRL

1.7E-04

1.0E-04

No

No

2.5E-05

1.3E-05

No

No

Arsenic

Crayfish

0.2196

0.2749

0.28

0.0003

CMRL

4.2E-04

2.6E-04

Yes

No

6.4E-05

3.1E-05

No

No

Arsenic

Unknown

0.137

0.39

0.38

0.0003

CMRL

5.8E-04

3.5E-04

Yes

Yes

8.8E-05

4.3E-05

No

No

Arsenic

Sunfish spp.

0.026

1.3

0.44

0.0003

CMRL

6.7E-04

4.1E-04

Yes

Yes

1.0E-04

5.0E-05

No

No

Arsenic

Bass spp.

0.045

0.96

0.34

0.0003

CMRL

5.3E-04

3.2E-04

Yes

Yes

7.9E-05

3.9E-05

No

No

Cadmium

Creek chub

0.529

1.11

1.2

0.0002

CMRL

1.8E-03

1.1E-03

Yes

Yes

2.7E-04

1.3E-04

Yes

No

Cadmium

Crayfish

1.9136

2.3827

2.4

0.0002

CMRL

3.6E-03

2.2E-03

Yes

Yes

5.4E-04

2.7E-04

Yes

Yes

Cadmium

Bass spp.

0.028

0.8282

0.63

0.0002

CMRL

9.7E-04

5.9E-04

Yes

Yes

1.5E-04

7.2E-05

No

No

Cadmium

Sunfish spp.

0.0416

1.9608

1.6

0.0002

CMRL

2.4E-03

1.5E-03

Yes

Yes

3.7E-04

1.8E-04

Yes

No

Cadmium

Unknown

0.12

1.8

1.4

0.0002

CMRL

2.2E-03

1.3E-03

Yes

Yes

3.3E-04

1.6E-04

Yes

No

Chromium

Creek chub

0.242

0.356

0.35

0.003

RfD

5.4E-04

3.3E-04

No

No

8.1E-05

4.0E-05

No

No

Chromium

Crayfish

0.5469

1.3066

1.3

0.003

RfD

1.9E-03

1.2E-03

No

No

2.9E-04

1.4E-04

No

No

Chromium

Bass spp.

0.12

2.1

1.5

0.003

RfD

2.2E-03

1.3E-03

No

No

3.3E-04

1.7E-04

No

No

Chromium

Unknown

0.27

0.69

0.61

0.003

RfD

9.4E-04

5.7E-04

No

No

1.4E-04

7.0E-05

No

No

Chromium

Sunfish spp.

0.062

0.7173

0.43

0.003

RfD

6.6E-04

4.0E-04

No

No

9.9E-05

4.9E-05

No

No

Thallium

Creek chub

ND

ND

ND

0.00007

RfD

ND

ND

No

No

ND

ND

No

No

Thallium

Unknown

0.01

0.024

0.027

0.00007

RfD

4.1E-05

2.5E-05

No

No

6.2E-06

3.1E-06

No

No

Thallium

Bass spp.

0.005

0.049

0.058

0.00007

RfD

8.9E-05

5.4E-05

Yes

No

1.3E-05

6.6E-06

No

No

Thallium

Sunfish spp.

0.009

9.2

4.1

0.00007

RfD

6.3E-03

3.8E-03

Yes

Yes

9.5E-04

4.7E-04

Yes

Yes

Organics

Aldrin

Crayfish

ND

ND

ND

0.00003

CMRL

ND

ND

No

No

ND

ND

No

No

Aldrin

Catfish

0.0023

0.0055

0.0062

0.00003

CMRL

9.5E-06

5.7E-06

No

No

1.4E-06

7.0E-07

No

No

Aldrin

Bass spp.

0.00039

0.0042

0.0039

0.00003

CMRL

6.0E-06

3.6E-06

No

No

8.9E-07

4.4E-07

No

No

Aldrin

Sunfish spp.

0.033

0.042

0.043

0.00003

CMRL

6.5E-05

3.9E-05

Yes

Yes

9.8E-06

4.9E-06

No

No

Benzo(a)pyrene

Sunfish spp.

0.00041

0.00041

0.0004

Evaluated for carcinogenic effects (see Table 29)

Benzo(a)pyrene

Catfish

0.033

0.033

0.033

Evaluated for carcinogenic effects (see Table 29)

Benzo(a)pyrene

Crayfish

0.0042

0.0071

0.0077

Evaluated for carcinogenic effects (see Table 29)

Dibenzo(a,h)anthracene

Catfish

0.033

0.033

0.033

Evaluated for carcinogenic effects (see Table 29)

Dibenzo(a,h)anthracene

Sunfish spp.

0.0056

0.0056

0.0056

Evaluated for carcinogenic effects (see Table 29)

Dibenzo(a,h)anthracene

Crayfish

0.00093

0.0013

0.0014

Evaluated for carcinogenic effects (see Table 29)

Dieldrin

Crayfish

0.0082

0.011

0.012

0.00005

CMRL

1.8E-05

1.1E-05

No

No

2.7E-06

1.3E-06

No

No

Dieldrin

Catfish

0.0012

0.028

0.023

0.00005

CMRL

3.5E-05

2.1E-05

No

No

5.3E-06

2.6E-06

No

No

Dieldrin

Bass spp.

0.00081

0.11

0.069

0.00005

CMRL

1.1E-04

6.4E-05

Yes

Yes

1.6E-05

7.8E-06

No

No

Dieldrin

Sunfish spp.

0.011

0.083

0.085

0.00005

CMRL

1.3E-04

7.9E-05

Yes

Yes

2.0E-05

9.7E-06

No

No

alpha-HCH

Crayfish

ND

ND

ND

0.008

CMRL

ND

ND

No

No

ND

ND

No

No

alpha-HCH

Catfish

ND

ND

ND

0.008

CMRL

ND

ND

No

No

ND

ND

No

No

alpha-HCH

Bass spp.

ND

ND

ND

0.008

CMRL

ND

ND

No

No

ND

ND

No

No

alpha-HCH

Sunfish spp.

0.0026

0.042

0.048

0.008

CMRL

7.4E-05

4.5E-05

No

No

1.1E-05

5.5E-06

No

No

Heptachlor epoxide

Crayfish

0.0016

0.0042

0.0047

0.000013

RfD

7.3E-06

4.4E-06

No

No

1.1E-06

5.4E-07

No

No

Heptachlor epoxide

Bass spp.

0.00057

0.011

0.0084

0.000013

RfD

1.3E-05

7.8E-06

No

No

1.9E-06

9.6E-07

No

No

Heptachlor epoxide

Catfish

0.0019

0.02

0.016

0.000013

RfD

2.4E-05

1.4E-05

Yes

Yes

3.6E-06

1.8E-06

No

No

Heptachlor epoxide

Sunfish spp.

0.0006

0.073

0.053

0.000013

RfD

8.2E-05

4.9E-05

Yes

Yes

1.2E-05

6.1E-06

No

No

Toxaphene

Catfish

ND

ND

ND

0.001

IMRL

ND

ND

No

No

ND

ND

No

No

Toxaphene

Crayfish

ND

ND

ND

0.001

IMRL

ND

ND

No

No

ND

ND

No

No

Toxaphene

Bass spp.

1.9

1.9

1.9

0.001

IMRL

2.9E-03

1.8E-03

Yes

Yes

4.4E-04

2.2E-04

No

No

Toxaphene

Sunfish spp.

0.656

0.832

0.85

0.001

IMRL

1.3E-03

7.9E-04

Yes

No

2.0E-04

9.7E-05

No

No

Noncancer subsistence-level doses were calculated using the following formulas:
child dose = (second-tier screening concentration×0.02 kg/day×365 days/year×6 years)/(13 kg×(365 days/year×6 years))
adult dose = (second-tier screening concentration×0.065 kg/day×365 days/year×30 years)/(70 kg×(365 days/year×30 years))
Noncancer recreational-level doses were calculated using the following formulas:
child dose = (second-tier screening concentration×0.003 kg/day×365 days/year×6 years)/(13 kg×(365 days/year×6 years))
adult dose = (second-tier screening concentration×0.008 kg/day×365 days/year×30 years)/(70 kg×(365 days/year×30 years))
The second-tier screening concentrations are rounded.
CMRL = chronic minimal risk level (ATSDR)
conc. = concentration
IMRL = intermediate minimal risk level (ATSDR)
mg/kg/day = milligram per kilogram per day
ND = not detected
ppm = parts per million
RfD = reference dose (EPA)
spp = species
Unknown = "unknown aquatic animal"

Table 29. Estimated Exposure Doses for Chemicals in Fish Caught On Site Compared to Cancer Screening Guidelines

Substance Name

Species

2nd Tier Screening Conc.
(ppm)

EPA’s Oral Cancer Slope Factor (mg/kg/day)-1

Estimated Exposure Dose (mg/kg/day)

Risk

Does the Estimated Exposure Dose Exceed the Cancer Screening Guideline (10-4)?

Subsistence

Recreational

Subsistence

Recreational

Subsistence

Recreational

Inorganics

Arsenic

Creek chub

0.11

1.5

4.4E-05

5.4E-06

6.6E-05

8.1E-06

No

No

Arsenic

Crayfish

0.28

1.5

1.1E-04

1.3E-05

1.6E-04

2.0E-05

Yes

No

Arsenic

Unknown aquatic

0.38

1.5

1.5E-04

1.9E-05

2.3E-04

2.8E-05

Yes

No

Arsenic

Sunfish spp.

0.44

1.5

1.7E-04

2.1E-05

2.6E-04

3.2E-05

Yes

No

Arsenic

Bass spp.

0.34

1.5

1.4E-04

1.7E-05

2.0E-04

2.5E-05

Yes

No

Cadmium

Creek chub

1.2

Evaluated for noncarcinogenic effects (see Table 28)

Cadmium

Crayfish

2.4

Evaluated for noncarcinogenic effects (see Table 28)

Cadmium

Bass spp.

0.63

Evaluated for noncarcinogenic effects (see Table 28)

Cadmium

Sunfish spp.

1.6

Evaluated for noncarcinogenic effects (see Table 28)

Cadmium

Unknown aquatic

1.4

Evaluated for noncarcinogenic effects (see Table 28)

Chromium

Creek chub

0.35

Evaluated for noncarcinogenic effects (see Table 28)

Chromium

Crayfish

1.3

Evaluated for noncarcinogenic effects (see Table 28)

Chromium

Bass spp.

1.5

Evaluated for noncarcinogenic effects (see Table 28)

Chromium

Unknown aquatic

0.61

Evaluated for noncarcinogenic effects (see Table 28)

Chromium

Sunfish spp.

0.43

Evaluated for noncarcinogenic effects (see Table 28)

Thallium

Creek chub

ND

NA

ND

ND

ND

ND

No

No

Thallium

Unknown aquatic

0.027

Evaluated for noncarcinogenic effects (see Table 28)

Thallium

Bass spp.

0.058

Evaluated for noncarcinogenic effects (see Table 28)

Thallium

Sunfish spp.

4.1

Evaluated for noncarcinogenic effects (see Table 28)

Organics

Aldrin

Crayfish

ND

17

ND

ND

ND

ND

No

No

Aldrin

Catfish

0.0062

17

2.5E-06

3.0E-07

4.2E-05

5.1E-06

No

No

Aldrin

Bass spp.

0.0039

17

1.5E-06

1.9E-07

2.6E-05

3.2E-06

No

No

Aldrin

Sunfish spp.

0.043

17

1.7E-05

2.1E-06

2.9E-04

3.5E-05

Yes

No

Benzo(a)pyrene

Sunfish spp.

0.0004

7.3

1.6E-07

2.0E-08

1.2E-06

1.5E-07

No

No

Benzo(a)pyrene

Catfish

0.033

7.3

1.3E-05

1.6E-06

9.6E-05

1.2E-05

No

No

Benzo(a)pyrene

Crayfish

0.0077

7.3

3.1E-06

3.8E-07

2.2E-05

2.8E-06

No

No

Dibenzo(a,h)anthracene

Catfish

0.033

7.3

1.3E-05

1.6E-06

9.6E-05

1.2E-05

No

No

Dibenzo(a,h)anthracene

Sunfish spp.

0.0056

7.3

2.2E-06

2.7E-07

1.6E-05

2.0E-06

No

No

Dibenzo(a,h)anthracene

Crayfish

0.0014

7.3

5.5E-07

6.7E-08

4.0E-06

4.9E-07

No

No

Dieldrin

Crayfish

0.012

16

4.6E-06

5.7E-07

7.4E-05

9.1E-06

No

No

Dieldrin

Catfish

0.023

16

9.2E-06

1.1E-06

1.5E-04

1.8E-05

Yes

No

Dieldrin

Bass spp.

0.069

16

2.7E-05

3.4E-06

4.4E-04

5.4E-05

Yes

No

Dieldrin

Sunfish spp.

0.085

16

3.4E-05

4.2E-06

5.4E-04

6.7E-05

Yes

No

alpha-HCH

Crayfish

ND

6.3

ND

ND

ND

ND

No

No

alpha-HCH

Catfish

ND

6.3

ND

ND

ND

ND

No

No

alpha-HCH

Bass spp.

ND

6.3

ND

ND

ND

ND

No

No

alpha-HCH

Sunfish spp.

0.048

6.3

1.9E-05

2.4E-06

1.2E-04

1.5E-05

Yes

No

Heptachlor epoxide

Crayfish

0.0047

9.1

1.9E-06

2.3E-07

1.7E-05

2.1E-06

No

No

Heptachlor epoxide

Bass spp.

0.0084

9.1

3.3E-06

4.1E-07

3.0E-05

3.7E-06

No

No

Heptachlor epoxide

Catfish

0.016

9.1

6.2E-06

7.6E-07

5.7E-05

7.0E-06

No

No

Heptachlor epoxide

Sunfish spp.

0.053

9.1

2.1E-05

2.6E-06

1.9E-04

2.4E-05

Yes

No

Toxaphene

Catfish

ND

1.1

ND

ND

ND

ND

No

No

Toxaphene

Crayfish

ND

1.1

ND

ND

ND

ND

No

No

Toxaphene

Bass spp.

1.9

1.1

7.6E-04

9.3E-05

8.3E-04

1.0E-04

Yes

Yes

Toxaphene

Sunfish spp.

0.85

1.1

3.4E-04

4.1E-05

3.7E-04

4.6E-05

Yes

No

Cancer subsistence-level doses were calculated using the following formula:
dose = (second-tier screening concentration×0.065 kg/day×365 days/year×30 years)/(70 kg×(365 days/year×70 years))
Cancer recreational-level doses were calculated using the following formula:
dose = (second-tier screening concentration×0.008 kg/day×365 days/year×30 years)/(70 kg×(365 days/year×70 years))
The second-tier screening concentrations are rounded.
conc. = concentration
mg/kg/day = milligram per kilogram per day
NA = not available
ND = not detected
ppm = parts per million
spp = species
Unknown aquatic = "unknown aquatic animal"

Table 30. Estimated Exposure Doses for Chemicals in Game Caught On Site Compared to Noncancer Screening Guidelines

Substance Name

Species

Minimum (ppm)

Maximum (ppm)

2nd Tier Screening Conc.
(ppm)

Estimated Exposure Dose (mg/kg/day)

Noncancer Screening Guideline (mg/kg/day)

Source

Does the Estimated Exposure Dose Exceed the Noncancer Screening Guideline?

Child

Adult

Child

Adult

Inorganics

Aluminum

Unknown terrestrial animal

0.0987

15,300

10,400

8.0E-01

3.0E-01

1

RfD

No

No

Antimony

Unknown terrestrial animal

0.0224

14.3

12

8.9E-04

3.3E-04

0.0004

RfD

Yes

No

Cadmium

Canadian goose

0.41

3.2

2.5

1.9E-04

7.2E-05

0.0002

CMRL

No

No

Cadmium

Unknown aquatic bird

1.53

7.21

7.1

5.5E-04

2.0E-04

0.0002

CMRL

Yes

Yes

Cadmium

Unknown terrestrial animal

0.0033

32.4

13

9.7E-04

3.6E-04

0.0002

CMRL

Yes

Yes

Cadmium

Unknown terrestrial bird

ND

ND

ND

ND

ND

0.0002

CMRL

ND

ND

Cadmium

Wood duck

ND

ND

ND

ND

ND

0.0002

CMRL

ND

ND

Iron

Unknown terrestrial animal

0.6878

36,200

18,000

1.4E+00

5.1E-01

0.3

RfD

Yes

Yes

Manganese

Unknown terrestrial animal

0.291

10,200

4,000

3.1E-01

1.1E-01

0.14

RfD

Yes

No

Manganese

Unknown terrestrial bird

0.36

0.5

0.53

4.1E-05

1.5E-05

0.14

RfD

No

No

Thallium

Unknown terrestrial animal

0.93

2.9

2.6

2.0E-04

7.5E-05

0.00007

RfD

Yes

Yes

Organics

4,6-Dinitro-o-cresol

Unknown terrestrial animal

3.5

3.5

3.5

2.7E-04

1.0E-04

0.0001

RfD

Yes

No

2,4-Dinitrophenol

Unknown terrestrial animal

3.5

75

82

6.3E-03

2.3E-03

0.002

RfD

Yes

Yes

Noncancer doses were calculated using the following formulas:
child dose = (second-tier screening concentration×0.001 kg/day×365 days/year×6 years)/(13 kg×(365 days/year×6 years))
adult dose = (second-tier screening concentration×0.002 kg/day×365 days/year×30 years)/(70 kg×(365 days/year×30 years))
The second-tier screening concentrations are rounded.
CMRL = chronic minimal risk level (ATSDR)
conc. = concentration
mg/kg/day = milligram per kilogram per day
ND = not detected
ppm = parts per million
RfD = reference dose (EPA)

All chemicals detected in game species caught on site were evaluated for noncarcinogenic effects only—cancer screening guidelines are not available for these chemicals.

Table 31. Estimated Exposure Doses for Chemicals in Vegetation Species Collected Off Site Compared to Noncancer Screening Guidelines

Substance Name

Species

Minimum (ppm)

Maximum (ppm)

2nd Tier Screening Conc.
(ppm)

Estimated Exposure Dose (mg/kg/day)

Noncancer Screening Guideline (mg/kg/day)

Source

Does the Estimated Exposure Dose Exceed the Noncancer Screening Guideline?

Child

Adult

Child

Adult

Inorganics

Arsenic

Beets

0.0702

0.0702

0.07

1.1E-04

1.1E-04

0.0003

CMRL

No

No

Arsenic

Kale

0.0341

5.3428

3.0

4.8E-03

4.8E-03

0.0003

CMRL

Yes

Yes

Arsenic

Tomatoes

0.4371

3.6404

2.6

4.2E-03

4.2E-03

0.0003

CMRL

Yes

Yes

Arsenic

Unknown terrestrial plant

ND

ND

ND

ND

ND

0.0003

CMRL

ND

ND

Cadmium

Beets

0.6857

0.6857

0.69

1.1E-03

1.1E-03

0.0002

CMRL

Yes

Yes

Cadmium

Kale

0.2332

1.5643

1.0

1.7E-03

1.7E-03

0.0002

CMRL

Yes

Yes

Cadmium

Tomatoes

0.1084

2.7098

2.0

3.3E-03

3.3E-03

0.0002

CMRL

Yes

Yes

Cadmium

Unknown terrestrial plant

ND

ND

ND

ND

ND

0.0002

CMRL

ND

ND

Chromium

Beets

0.1446

0.5144

0.52

8.3E-04

8.3E-04

0.003

RfD

No

No

Chromium

Kale

0.061

24.446

16

2.6E-02

2.6E-02

0.003

RfD

Yes

Yes

Chromium

Tomatoes

0.0472

30.296

21

3.4E-02

3.4E-02

0.003

RfD

Yes

Yes

Chromium

Unknown terrestrial plant

0.3437

0.3437

0.34

5.5E-04

5.5E-04

0.003

RfD

No

No

Noncancer doses were calculated using the following formulas:
child dose = (second-tier screening concentration×0.0016 kg/kg/day×365 days/year×6 years)/(365 days/year×6 years))
adult dose = (second-tier screening concentration×0.0016 kg/kg/day×365 days/year×30 years)/(365 days/year×30 years))
The second-tier screening concentrations are rounded.
CMRL = chronic minimal risk level (ATSDR)
conc. = concentration
mg/kg/day = milligram per kilogram per day
ND = not detected
ppm = parts per million
RfD = reference dose (EPA)

Table 32. Estimated Exposure Doses for Chemicals in Vegetation Collected Off Site Compared to Cancer Screening Guidelines

Substance Name

Species

2nd Tier Screening Conc.
(ppm)

Estimated Exposure Dose (mg/kg/day)

EPA’s Oral Cancer Slope Factor (mg/kg/day)-1

Risk

Does the Estimated Exposure Dose Exceed the Cancer Screening Guideline (10-4)?

Inorganics

Arsenic

Beets

0.07

4.8E-05

1.5

7.2E-05

No

Arsenic

Kale

3

2.1E-03

1.5

3.1E-03

Yes

Arsenic

Tomatoes

2.6

1.8E-03

1.5

2.7E-03

Yes

Arsenic

Unknown terrestrial plant

ND

ND

1.5

ND

No

Cadmium

Beets

0.69

Evaluated for noncarcinogenic effects (see Table 31)

Cadmium

Kale

1

Evaluated for noncarcinogenic effects (see Table 31)

Cadmium

Tomatoes

2

Evaluated for noncarcinogenic effects (see Table 31)

Cadmium

Unknown terrestrial plant

ND

ND

NA

ND

No

Chromium

Beets

0.52

Evaluated for noncarcinogenic effects (see Table 31)

Chromium

Kale

16

Evaluated for noncarcinogenic effects (see Table 31)

Chromium

Tomatoes

21

Evaluated for noncarcinogenic effects (see Table 31)

Chromium

Unknown terrestrial plant

0.34

Evaluated for noncarcinogenic effects (see Table 31)

Cancer doses were calculated using the following formula:
dose = (second-tier screening concentration×0.0016 kg/kg/day×365 days/year×30 years)/(365 days/year×70 years))
Risk was calculated by multiplying the cancer dose by EPA's oral cancer slope factor.
The second-tier screening concentrations are rounded.
mg/kg/day = milligram per kilogram per day
NA = not available
ND = not detected
ppm = parts per million

Table 33. Chemicals Detected at Air Monitoring Stations

Substance Name

Minimum (µg/m3)

Maximum (µg/m3)

Average (µg/m3)

2nd Tier Screening Conc.
(µg/m3)

Number of Times Detected

Sample Total

Percent Detected

Comparison Value
(µg/m3)

Source

Maximum Above CV?

2nd Tier Screening Conc. Above CV?

Number of Times Above CV

Inorganics

Arsenic

0.000001

0.00685

0.00056

0.00134

132

224

59%

0.0002

CREG

Yes

Yes

98

Beryllium

0.00001

0.00002

0.00001

0.00001

5

219

2%

0.0004

CREG

No

No

0

Cadmium

0.00004

0.00376

0.00065

0.00129

241

241

100%

0.0006

CREG

Yes

Yes

88

Chromium

0.00000

0.04560

0.00128

0.00565

179

219

82%

0.00008

CREG (CrVI)

Yes

Yes

161

Lead

0.00001

0.00888

0.00347

0.00535

242

243

100%

1.5

NAAQS

No

No

0

There are discrepancies between OREIS and DOE's annual reports for some of the air monitoring data. The highest values were used in this evaluation.
conc. = concentration
CREG = cancer risk evaluation guide
CrVI = chromium VI
CV = comparison value
µg/m3 = micrograms per cubic meter
NAAQS = National Ambient Air Quality Standard

Table 34. Chemicals Detected in the Soil in the Scarboro Community

Substance Name

Minimum (ppm)

Maximum (ppm)

Average (ppm)

Number of Times Detected

Sample Total

Comparison Value (ppm)

Source

Maximum Above CV?

Inorganics

Aluminum

8,530

32,900

17,000

13

16

100,000

IEMEG

No

Antimony

0.0383

0.113

0.076

6

16

20

RMEG

No

Arsenic

1

6.39

4.0

13

16

0.5

CREG

Yes

Barium

36.6

206

95

13

16

4,000

RMEG

No

Beryllium

0.509

1.35

0.80

13

16

100

CEMEG

No

Cadmium

0.0702

0.57

0.38

13

16

10

CEMEG

No

Chromium

13.8

26.6

20

13

16

200

RMEG (CrVI)

No

Cobalt

4.7

60

14

13

16

500

IEMEG

No

Copper

13.3

44.3

22

13

16

2,000

IEMEG

No

Iron

14,900

29,700

21,000

13

16

23,000

Residential RBC

Yes

Lead

5.3

130

45

13

16

400

Soil Screening Level

No

Manganese

122

1,930

760

13

16

3,000

RMEG

No

Nickel

9.42

60.9

16

13

16

1,000

IEMEG

No

Selenium

1.46

1.87

1.7

3

16

300

CEMEG

No

Silver

0.39

0.39

0.39

2

16

300

RMEG

No

Thallium

0.287

0.377

0.34

6

16

5.5

Residential RBC

No

Vanadium

17.7

35.6

26

13

16

200

IEMEG

No

Zinc

24.8

153

74

13

16

20,000

CEMEG

No

Organics

Acetone

0.0098

0.0098

0.0098

1

16

5,000

RMEG

No

Benzoic acid

0.0824

0.123

0.017

4

24

200,000

RMEG

No

Bromoform

0.0019

0.0025

0.0022

4

16

90

CREG

No

cis-Chlordane

0.011

1.7

0.86

4

16

2

CREG (chlordane)

No

DDE, p,p’-

0.0017

0.0017

0.0017

2

16

2

CREG

No

DDT, p,p’-

0.002

0.002

0.002

2

16

2

CREG

No

Fluoranthene

0.074

0.0824

0.10

4

16

2,000

RMEG

No

gamma-Chlordane

0.012

2.8

1.4

4

16

2

CREG (chlordane)

Yes

Heptachlor

0.013

0.19

0.13

3

16

0.2

CREG

No

Heptachlor epoxide

0.011

0.97

0.65

3

16

0.08

CREG

Yes

Pyrene

0.068

0.068

0.068

1

16

2,000

RMEG

No

Essential nutrients (calcium, magnesium, potassium, and sodium) are not included in the table.
CEMEG = chronic environmental media evaluation guide
CrVI = chromium VI
CREG = cancer risk evaluation guide
CV = comparison value
IEMEG = intermediate environmental media evaluation guide
ppm = parts per million
RBC = risk-based concentration
RMEG = reference dose media evaluation guide

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