Sample ID

OX1-97-C1-1

OX1-97-C2-1

OX1-97-A6-1

OX1-97-A6-1

OX1-97-A6-2

OX1-97-A1-1

OX1-97-A1-2

OX1-97-A1-3

OX1-97-A1-4

OX1-97-A6-3

OX1-97-A6-4

Depth (ft)

0.0 - 2.0

0.0 - 2.0

0.0 - 2.0

2.0 - 4.0

0.0 - 2.0

0.0 - 2.0

0.0 - 2.0

0.0 - 2.0

0.0 - 2.0

0.0 - 2.0

0.0 - 4.0

Date Collected

9/25/97

9/25/97

9/25/97

9/25/97

9/25/97

9/25/97

9/25/97

11/6/97

11/6/97

11/6/97

11/6/97

Comparison Criteria

Sample Analytical Results

Constituent

Lab MDL^a

Lab RL

Background (TaB)^b

RRS2-GWP^c

RRS2-SAI^c

VOCs, SW8260B (mg/kg):

Tetrachloroethene

0.014

0.007

0.007

0.5

17

0.0275

1.77

0.0641

0.589

0.102

85.2

0.348

5.44

0.417

0.034

0.205

Solids (%):

--

--

--

--

--

68.1

81.2

76.9

80.8

81.3

77.4

73.3

62.1

79.3

84.1

86.2

Sample ID

OX1-97-C1-2

OX1-97-C2-2

Depth (ft)

0.0 = 2.0

0.0 - 2.0

Date Collected

11/6/97

11/6/97

Sample Analytical Results (continued)

VOCs, SW8260B (mg/kg):

Tetrachloroethene

20

0.0881

Solids (%):

76.1

83.0

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 Intertek Testing Services Environmental Laboratories (ITS).

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.