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HEALTH CONSULTATION

GROUNDWATER - RESIDENTIAL WELLS

BENDIX CORPORATION/ALLIED AUTOMOTIVE
ST. JOSEPH, BERRIEN COUNTY, MICHIGAN


Table 1. Volatile Organic Chemicals found in groundwater samples from monitoring wells 1981-1990

Chemical Date Maximum Concentration
(ppb)
Reference
Bendix site Northeast plume Northwest plume
Maximum Median Maximum Median Maximum Median
acetone

1/18/90

19

4.4

46

4.95

8.8

ND

3

acrylonitrile

1981

ND

NR

--

--

--

--

4

1/18/82

ND

NR

ND

ND

--

--

4

4/13-16/82

ND

NR

ND

ND

--

--

4

5/20/82

3

ND

ND

ND

--

--

4

benzene

1981

< 10

NR

--

--

--

--

4

1/18/82

6

NR

4

ND

--

--

4

4/13-16/82

ND

NR

2

ND

--

--

4

5/20/82

4

2

ND

ND

--

--

4

1/18/90

1

ND

ND

ND

ND

ND

3

chloroethane

1981

ND

NR

--

--

--

--

4

1/18/82

1

NR

2

ND

--

--

4

4/13-16/82

ND

NR

16

ND

--

--

4

5/20/82

ND

ND

3

ND

--

--

4

1/18/90

ND

ND

3.3

ND

ND

ND

3

chloroform

1981

ND

NR

--

--

--

--

4

1/18/82

ND

NR

ND

ND

--

--

4

4/13-16/82

ND

NR

< 2

ND

--

--

4

5/20/82

ND

ND

ND

ND

--

--

4

1/18/90

ND

ND

ND

ND

ND

ND

3

1,1-dichloroethane

1981

ND

NR

--

--

--

--

4

1/18/82

24

NR

15

ND

--

--

4

4/13-16/82

ND

NR

260

20.5

--

--

4

5/20/82

650

320

5

ND

--

--

4

6/84

ND

ND

21

17.5

10

ND

2

3/8/1985

440

33

14

ND

55

1.1

3

4/28/87

193

20

6

ND

66

ND

3

9/24/87

460

28.5

3

ND

69

ND

3

3/21/88

100

10

ND

ND

50

ND

3

9/27/88

160

8.5

100

ND

4

ND

3

1/18/90

78

11

3.8

ND

3.5

ND

3

1,2-dichloroethane

1981

240

NR

--

--

--

--

4

1/18/82

ND

NR

ND

ND

--

--

4

4/13-16/82

ND

NR

ND

ND

--

--

4

5/20/82

2

ND

ND

ND

--

--

4

6/84

ND

ND

ND

ND

ND

ND

2

2/85

ND

ND

310

NR

17

NR

2

10/86

ND

ND

ND

ND

ND

ND

3

4/87

ND

ND

ND

ND

ND

ND

3

9/87

ND

ND

ND

ND

ND

ND

3

3/88

ND

ND

ND

ND

ND

ND

3

9/88

ND

ND

ND

ND

ND

ND

3

1990

ND

ND

ND

ND

ND

ND

3

1,1-dichloroethylene

1981

10

NR

--

--

--

--

4

1/18/82

1

NR

7

ND

--

--

4

4/13-16/82

ND

NR

54

ND

--

--

4

5/20/82

12

3.5

ND

ND

--

--

4

1/18/90

ND

ND

7.4

2.3

30

ND

3

cis-1,2-dichloroethylene

1981

2,500

NR

--

--

--

--

4

trans-1,2-dichloroethylene

1981

2,500

NR

--

--

--

--

4

1/18/82

610

ND

ND

ND

--

--

4

4/13-16/82

ND

ND

690

301.5

--

--

4

5/20/82

2,700

1,185

2,900

1,468

--

--

4

6/84

ND

ND

ND

ND

510

ND

2

1,2-dichloroethylene (total)

3/8/85

1,200

1.95

18,000

20

3,500

11

3

10/13/86

ND

ND

3

ND

ND

ND

3

4/28/87

1,548

4

4,689

17

3,177

46

3

9/24/87

1,900

0.5

4,400

23

2,900

24

3

3/21/88

2,700

5

3,800

32

3,200

19

3

9/27/88

400

ND

6,100

15

5,500

26

3

1/18/90

3.4

1.3

2,600

1,250

1,600

5.35

3

trans-1,3-dichloropropylene

1981

ND

NR

--

--

--

--

4

1/18/82

20

NR

ND

ND

--

--

4

4/13-16/82

ND

NR

ND

ND

--

--

4

5/20/82

ND

ND

ND

ND

--

--

4

1990

ND

ND

ND

ND

ND

ND

3

ethylbenzene

1981

ND

NR

--

--

--

--

4

1/18/82

ND

NR

9

ND

--

--

4

4/13-16/82

ND

NR

< 2

ND

--

--

4

5/20/82

9

2

ND

ND

--

--

4

1990

ND

ND

ND

ND

ND

ND

3

methylene chloride

1981

ND

NR

--

--

--

--

4

1/18/82

ND

NR

ND

ND

--

--

4

4/13-16/82

ND

NR

ND

ND

--

--

4

5/20/82

42

37.5

ND

ND

--

--

4

1/18/90

ND

ND

55

ND

14

ND

3

tetrachloroethylene

1981

ND

ND

--

--

--

--

4

1/18/82

ND

NR

ND

ND

--

--

4

4/13-16/82

ND

ND

2

ND

--

--

4

5/20/82

ND

NR

ND

ND

--

--

4

1/18/90

ND

ND

3.3

ND

ND

ND

3

toluene

1981

20

NR

--

--

--

--

4

1/18/82

42

NR

31

ND

--

--

4

4/13-16/82

ND

NR

14

8

--

--

4

5/20/82

42

31

3

ND

--

--

4

1990

ND

ND

ND

ND

ND

ND

3

1,1,1-trichloroethane

1981

ND

NR

--

--

--

--

4

1/18/82

ND

NR

32

ND

--

--

4

4/13-16/82

ND

NR

6

ND

--

--

4

5/20/82

14

ND

ND

ND

--

--

4

1990

ND

ND

ND

ND

ND

ND

3

1,1,2-trichloroethane

1981

ND

NR

--

--

--

--

4

1982

ND

ND

ND

ND

--

--

4

1/18/90

ND

ND

4.3

ND

ND

ND

3

trichloroethylene

1981

ND

NR

--

--

--

--

4

1/18/82

ND

NR

61

38.5

--

--

4

4/13-16/82

ND

NR

120

50

--

--

4

5/20/82

150

11

130

71.5

--

--

4

6/84

28

ND

1,000

97

2,000

1,550

2

3/8/85

1,200

ND

1,800

1.3

5,800

1.7

3

10/13/86

72

1.5

130

1

263

1

3

4/28/87

297

0.5

603

ND

2,355

1

3

9/24/87

32

ND

510

2

2,500

1

3

3/21/88

50

ND

570

5

7,000

ND

3

9/27/88

100

ND

1,000

ND

2,000

ND

3

1/18/90

0.8

ND

650

505

430

ND

3

vinyl chloride

1981

3,500

NR

--

--

--

--

4

1/18/82

3,600

NR

590

ND

--

--

4

4/13-16/82

ND

NR

320

172

--

--

4

5/20/82

5,200

1,400

ND

ND

--

--

4

6/84

ND

ND

ND

ND

ND

ND

2

3/8/1985

4,300

ND

2,000

ND

9,400

ND

3

10/13/86

1,370

ND

1,550

ND

8,440

ND

3

4/28/87

1,098

1.5

1,419

6

2,297

19

3

9/24/87

1,300

ND

790

14

2,100

20

3

3/21/88

240

ND

1,900

3

2,400

15

3

9/27/88

400

1.5

500

ND

940

6

3

1/18/90

3.8

2

480

420

440

ND

3

xylenes (total)

1/18/90

0.9

ND

ND

ND

ND

ND

3

ND - Not Detected (for medians, not detected in 50% or more of the samples.)

NR -Reported data not sufficient to determine medians.

-- =Not Sampled or Not Analyzed for.

Note: References 2 and 3 only list data for 1,1-dichloroethane, 1,2-dichloroethane, trans-1,2-dichloroethylene, trichloroethylene, and vinyl chloride for samples collected between 1984 and 1988. Only the 1981 data gives separate concentrations for cis-1,2-dichloroethylene.

Table 2. Volatile Organic Chemicals found in sludge and soil samples 1982, 1984

 

Chemical Date Maximum Concentration
(ppm)
Reference
1,1-dichloroethane 1982

0.008

4
1984

1.1

2
1,2-dichloroethane 1982

ND

4
1984

0.13

2
trans-1,2-dichloroethylene 1982

ND

4
1984

0.25

2
ethylbenzene 1982

0.004

4
1984

NA

2
methylene chloride 1982

0.043

4
1984

NA

2
tetrachloroethylene 1982

0.003

4
1984

NA

2
toluene 1982

0.057

4
1984

NA

2
1,1,1-trichloroethane 1982

0.007

4
1984

NA

2
trichloroethylene 1982

ND

4
1984

6.3

2
vinyl chloride 1982

ND

4
1984

0.13

2

ND - Not Detected

NA -Not Analyzed for

Table 3. Volatile Organic Chemicals found in groundwater samples from residential wells 1984-1997

Chemical Date Maximum Concentration
(ppb)
Wells containing chemical
(Figure 2)
Reference
chloroform 10/84

ND

NA 2
10/86

ND

NA 9
8/97

0.7

RW-2 9
1,1-dichloroethane 10/84

3.6

RW-1 2
10/86

BQL

RW-1 9
8/97

2

RW-1, RW-5 9
1,2-dichloroethane 10/84

ND

NA 2
10/86

BQL

RW-1 9
8/97

ND

NA 9
cis-1,2-dichloroethylene 10/84

ND

NA 2
10/86

ND

NA 9
8/97

65

RW-1, RW-5 9
trans-1,2-dichloroethylene 10/84

48

RW-1 2
10/86

ND

NA 9
8/97

0.6

RW-1 9
1,1,1-trichloroethane 10/84

ND

NA 2
10/86

ND

NA 9
8/97

3

RW-5 9
trichloroethylene 10/84

47

RW-1 2
10/86

26

RW-1 9
8/97

25

RW-1, RW-5 9
vinyl chloride 10/84

5.6

RW-1 2
10/86

ND

NA 9
8/97

4

RW-1 9

ND - Not Detected

NA -Not Applicable

BQL -Below Quantification Limit


1. On April 1, 1996, the Michigan Department of Public Health (MDPH) Division of Health Risk Assessment (DHRA), which carries out the work required in the cooperative agreement with ATSDR, was absorbed into the newly-formed Michigan Department of Community Health (MDCH) as the Environmental Epidemiology Division. The site history and background section of this document uses the departmental identifiers in effect at the time of the events.

2. Under the federal Safe Drinking Water Act, the U.S. EPA has issued regulations for the amounts of many chemicals that are allowable in public drinking water supplies. The concentrations that are permissible, the Maximum Contaminant Levels (MCLs), are levels that are generally considered to pose no human health hazard after a lifetime of drinking the water, with modifications for the technical capability of detecting the chemical or for the economics of removing the chemical from water where it occurs naturally.

3. The MDEQ Groundwater Contact Criteria were developed to protect utility workers from adverse systemic health effects after dermal contact with contaminated water. See Reference 18 for complete details.


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