Compound
micro
g/l

Well A

Well B

Well C

Well D

Well E

Well F

Well G

Comp-
arison
Value

Year
1982

Sample date 1/18

Sample date 1/20

Sample date 1/20

Sample date 1/18

Sample date 1/18

Sample date 1/18

Sample date 1/30

Methylene
Chloride

46.0

23.0

20.0

ND

ND

ND

ND

2(MCL)

1,2-Dichloro-
ethane

217

133

122

ND

ND

ND

ND

0.4(CREG)

Chloro-
form

105

40.0

40.0

ND

ND

ND

114

6(CREG)

Carbon
Tetra-
chloride

239

110

130

ND

ND

ND

385

0.3(CREG)

1,2-Dichloro
propane

76.0

70.0

82.0

ND

ND

ND

52.0

5(MCL)

Trichloro
ethylene

138

110

150

ND

ND

ND

114

1(MCL)

Benzene

0.7

3.0

140(a)

1.2

ND

1.5

382

1(MCL)

1,1,2,2 Tetra-
chloro-
ethane

96.0

90.0

96.0

ND

ND

ND

2,014

400(EMEG)

Toluene

0.5

7.0

9.0

1.5

0.8

24.9

8.0(b)

1000(MCL)

Chloro-
benzene

0.3

27.0

29.0

ND

ND

ND

ND

50(MCL)

Ethyl
benzene

ND

ND

ND

3.4

1.1

6.4

ND

700(MCL)

Xylene

ND

ND

ND

ND

ND

0.5

ND

1000(MCL)