Analytical

Bromo-dichloro-methane *

Chloroform*

Dibromo-chloro-methane *

1,1-Dichloro-ethene

cis-1,2-Dichloro-ethene

trans-1,2-Dichloro-ethene

Dichloromethane�� (methylene chloride)

Tetra-�������������� chloroethene

Trichloroethene

Vinyl chloride

1,1-Dichloro- ethane

Chloro- methane

Toluene

Well Number

Laboratory

Method

Sample Date

Dilution

(ug/L)

(ug/L)

(ug/L)

(ug/L)

(ug/L)

(ug/L)

(ug/L)

(ug/L)

(ug/L)

(ug/L)

(ug/L)

(ug/L)

(ug/L)

RFR-8

O'B&G

SW8260B

9/9/99

1:1

0.025U

0.061U

0.049U

0.144U

0.145U

0.14U

0.15F

0.087U

0.06U

0.019U

0.054U

0.073U

0.017U

RFR-3

O'B&G

SW8260B

9/9/99

1:1

0.025U

0.061U

0.049U

0.144U

0.145U

0.14U

0.17F

0.087U

0.06U

0.019U

0.054U

0.073U

0.017U

JW-30

O'B&G

SW8260B

9/9/99

1:1

0.025U

0.061U

0.049U

0.144U

0.145U

0.14U

0.15F

0.087U

0.06U

0.019U

0.054U

0.073U

0.017U

LS-7

O'B&G

SW8260

12/13/99

1:1

0.025U

0.061U

0.049U

0.144U

0.145U

0.14U

0.06U

2.51

0.3F

0.019U

0.144U

0.073U

0.017U

Comparison

MCL

--

100

100

100

7

70

100

5

5

5

2

7

--

1000

Criteria

GW-Ind

--

100

100

100

7

70

100

5

5

5

2

7

220

1000

Chemron²

SW8260

PQL

--

3

3

3

5

4

4

4

5

2

Chemron

SW8260

MDL

--

MDLs not provided by laboratory

ITS

SW8260A

PQL

--

0.8

0.30

0.50

0.40

1.20

0.60

0.30

1.40

1.00

ITS

SW8260A

MDL

--

0.130

0.110

0.100

0.230

0.200

0.330

0.230

0.470

0.340

DHL

SW8260B

PQL

--

NA

1.0

NA

NA

1.0

1.0

NA

1.0

1.0

DHL

SW8260B

MDL

--

NA

0.4

NA

NA

0.3

0.2

NA

0.4

0.2

O'B&G

SW8260B

RL

--

0.8

0.3

0.5

1.2

1.2

0.6

2.0

1.4

1.0

1.1

0.4

1.3

1.1

¹ = Indicates data is screening analytical data only

Detected concentrations are in bold type.

Concentrations above the MCL have a box around them.

Shaded areas indicate analytical data analyzed by ITS Laboratories.