Sample ID

O1-A4

O1-A4

O1-A4/C1

O1-A4

O1-A4/C1

O1-A5

O1-A5

O1-A5/C1

O1-A6

O1-A6

O1-A6/C2

O1-A6

Depth (ft)

0.0

2.0

2.0

4.0

3.0

0.5

4.0

4.0

0.5

2.0

2.0

4.0

Date collected

1/6/98

1/6/98

1/6/98

1/6/98

1/6/98

1/6/98

1/6/98

1/6/98

1/6/98

1/6/98

1/6/98

1/6/98

Comparison Criteria

Sample Analytical Results

Constituent

Lab MDL^a

Lab RL

Background (TaB)^b

RRSR-GWP^c

RRS2-SAI^c

VOCs, SW8260B (mg/kg):

Tetrachloroethene

0.0009

0.007

0.007

0.5

1.7

23.5 M

697 ME

8510 M

1060 ME

8410 ME

229 M

406 M

1550 ME

45.3 M

68.6 M

176 M

35.6 M

Total metals (mg/kg):

Cadmium, SW7131A

0.02

4.0

2.60

0.50

410

0.02 U

0.18 F

1.1 F

0.76 F

1.1 F

0.02 U

0.72 F

0.2 F

0.02 U

0.02 U

0.85 F

0.02 U

Chromium, SW6010A

0.65

7.0

69.2

10

240,000

26.2 M

303 ME

1080 M

335 ME

1080 ME

36.1 M

83 M

63 ME

40.5 M

43.8 M

373 ME

48.7 M

Solids (%):

--

--

--

--

--

65.20

65.61

75.93

81.86

75.93

59.36

80.44

84.20

66.88

55.68

83.11

65.26

Sample ID

O1-C1

O1-C1

O1-C1

O1-C1^d

O1-C1^d

O1-A1

O1-A1

O1-A1/C1

O1-A1/C1

O1-A2

O1-A2

O1-A2^d

Depth (ft)

0.5

2.0

4.0

4.0

4.0

1.5

3.5

1.5

3.5

1.5

3.5

3.5

Date collected

1/6/98

1/6/98

1/6/98

1/6/98

1/6/98

1/6/98

1/6/98

1/6/98

1/6/98

1/6/98

1/6/98

1/6/98

Sample Analytical Results

VOCs, SW8260B (mg/kg):

Tetrachloroethene

609 ME

510 ME

182 M

100 M

108 M

6790 ME

4320 ME

5090 ME

40400 ME

21800 ME

8080 ME

19400 ME

Total Metals (mg/kg):

Cadmium, SW7131A

0.85 F

0.43 F

0.68 F

0.69 F

0.02 U

1.1 F

0.68 F

0.21 F

2.8 F

2.0 F

1.3 F

1.5 F

Chromium, SW6010A

396 ME

178 ME

183 ME

207 ME

80.1 M

743 ME

200 ME

93.7 M

1030 ME

746 ME

391 ME

510 ME

Solids (%):

76.07

81.20

79.53

77.72

59.84

76.93

80.66

81.02

77.74

79.52

82.70

81.25

Sample ID

01-A2/C2

01-A2/C2

01-C2

01-C2

01-C2^d

Depth (ft)

1.5

3.5

1.5

3.5

3.5

Date collected

1/9/98

1/9/98

1/9/98

1/9/98

1/9/98

Sample Analytical Results (continued)

VOCs, SW8260B (mg/kg):

Tetrachloroethene

48900 ME

3690 ME

113 M

243 M

392 ME

Total Metals (mg/kg):

Cadmium, SW7131A

3.8 F

0.61 F

0.35 F

0.02 U

0.19 F

Chromium, SW6010A

1830 ME

109 ME

147ME

94.2 M

71.6 M

Solids (%):

74.77

84.00

74.17

73.35

79.14

Notes:

a - Although MDLs were adjusted for moisture content in the analytical reports from the laboratory, they are reported as unadjusted MDLs here.

b - Background values from Evaluation of Background Metals Concentrations in Soil Types at Camp Stanley Storage Activity. The site is located on soils of the Tarrant Association, gently undulating (Tab).

c - Industrial risk reduction standards for groundwater protection and soil-air ingestion.

d - Duplicate sample

Concentrations exceeding RRS1 background levels are in bold type.

Concentrations exceeding RRS2 standards are highlighted.

Analysis performed by DHL Analytical Laboratory

Data Qualifiers:

U - The analyte was analyzed for, but not detected. The associated numerical value is at or below the MDL.

F - The analyte was positively identified but the associated numerical value is below the RL.

M - A matrix effect was present.

E - Sample was diluted; dilution factor is presented in the raw data.