ATSDR - PHA - Ossineke Groundwater Contamination, Ossineke, Alpena County, Michigan

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PUBLIC HEALTH ASSESSMENT

OSSINEKE GROUNDWATER CONTAMINATION
OSSINEKE, ALPENA COUNTY, MICHIGAN

APPENDIX A. - FIGURES

Figure 1. Site Location

Figure 2. Plume Configuration Based
on Hydraulic Probe Results.
(Reference 3, Figure 4-3)

Figure 3. Surface Soil, Surface Water,
and Sediment Sampling Locations (Reference 3, Figure 2-4)

APPENDIX B. - TABLES

Table 1. Contaminants of concern at the Ossineke Ground-water site

VOLATILE ORGANIC CHEMICALS OTHER SEMI-VOLATILE ORGANIC CHEMICALS

acetone benzyl alcohol

benzene bis(2-ethylhexyl)phthalate

2-butanone di-n-octylphthalate

carbon disulfide 4-methylphenol

carbon tetrachloride phenol

chloroform

1,1-dichloroethane

1,2-dichloroethane PETROLEUM HYDROCARBONS

1,2-dichloroethylene (total)

ethylbenzene decane

isopropylbenzene octane

4-methyl-2-pentanone oil and grease

methylene chloride

n-propylbenzene METALS

styrene

tetrachloroethylene (PCE) antimony

toluene arsenic

1,1,1-trichloroethane barium

trichloroethylene beryllium

1,2,4-trimethylbenzene cadmium

1,3,5-trimethylbenzene chromium

xylenes (total) cobalt

copper

POLYNUCLEAR AROMATIC HYDROCARBONS (PAHs) lead

manganese

mercury

benzo(a)anthracene nickel

benzo(a)pyrene vanadium

benzo(b)fluoranthene zinc

benzo(g,h,i)perylene

benzo(k)fluoranthene

chrysene

indeno(1,2,3-cd)pyrene

naphthalene

phenanthrene

Table 2. Maximum concentrations of contaminants of concern found in water from on-site monitoring wells

Chemical Date Maximum Concentration
(ppb) Comparison Values
(ppb)

unfiltered filtered

arsenic 1989-90 106 19.7 0.02^C

barium 1989-90 711.J 227 700^R

benzene 1985 21,000 NR 1^C

1989-90 6,230 NR

benzo(a)anthracene 1990 2.J NR Carcinogen

benzo(a)pyrene 1990 3.J NR 0.005^C

benzo(b)fluoranthene 1990 4.J NR Carcinogen

benzo(g,h,i)perylene 1990 3.J NR NA

benzo(k)fluoranthene 1990 3.J NR Carcinogen

beryllium 1989-90 5.3 2.8B 0.008^C

bis(2-ethylhexyl)phthalate 1989-90 4.J NR 3^C

cadmium 1989-90 11.3 3.4B Carcinogen

chromium (total) 1989-90 349 9.B 10,000^R (III)
Carcinogen (VI)

chrysene 1990 3.J NR Carcinogen

cobalt 1989-90 87.3 14.4B NA

copper 1989-90 29,900 178 1,300^MG

1,1-dichloroethane 1989-90 0.39 NR Carcinogen

1,2-dichloroethane 1985 13 NR 0.4^C

1989-90 1.5 NR

ethylbenzene 1985 1,200 NR 1,000^R

1989-90 1,500 NR

indeno(1,2,3-cd)pyrene 1990 3.J NR Carcinogen

lead (total)
Organic 1989-90 172 46.3 15^PL, Carcinogen

1989-90 1.1 NR

manganese 1989-90 4,810 4,240 50^R

mercury 1989-90 61.6 18.9J NA

naphthalene 1989-90 239 NR 20^A

nickel 1989-90 321 54.4 Carcinogen

phenanthrene 1990 3.J NR NA

isopropylbenzene 1989-90 7 NR NA

n-propylbenzene 1989-90 33.J NR NA

styrene 1989-90 50 NR Carcinogen

tetrachloroethylene (PCE) 1985 7 NR 0.7^C

toluene 1985 53,000 NR 2,000^R

1989-90 17,300 NR

1,1,1-trichloroethane 1985 20 NR 200^A

1989-90 0.84 NR

trichloroethylene 1985 21 NR 3^C

1,2,4-trimethylbenzene 1989-90 1,120 NR NA

1,3,5-trimethylbenzene 1989-90 1,090 NR NA

vanadium 1989-90 325 9.4B 20^A

xylenes (total) 1985 11,000 NR 20,000^R

1989-90 8,340 NR

zinc 1989-90 50,100 6,470 3,000^R

References: 3, 7

Contaminants of concern that were never detected in this medium are not included

Bolded contaminants exceed comparison values

J – Estimated value
B – Analyte also found in laboratory blank

NR – Not Reported
NA – Not Available
Carcinogen – Carcinogen (proven, probable, or possible) but CREG not available

Comparison Value Bases

Table 3. Maximum concentrations of contaminants of concern found in water from on-site soil borings during the RI (1989-90)

Chemical Maximum Concentration
(ppb) Comparison Values
(ppb)

unfiltered filtered

antimony 80.3J 32.5BJ 4^R

arsenic 18.8 5.7BJ 0.02^C

barium 389.B 96.2B 700^R

benzene 1,090 NR 1^C

beryllium 3.5B ND 0.008^C

cadmium 4.6B ND Carcinogen

chromium (total) 1,070 6.7BJ 10,000^R (III)
Carcinogen (VI)

cobalt 61.9B 6.8B NA

copper 230 5.9B 1,300^MG

1,2-dichloroethane 0.8 NR 0.4^C

ethylbenzene 3,410 NR 1,000^R

lead (total) 97 11.2 15^PL, Carcinogen

manganese 2,850 2,650 50^R

mercury 0.7 ND Carcinogen

nickel 210 11.9B NA

tetrachloroethylene (PCE) 0.7 NR 0.7^C

toluene 29,100 NR 2,000^R

vanadium 199 9.4B 20^A

xylenes (total) 17,540 NR 20,000^R

zinc 1,910 823 3,000^R

Reference: 3

Contaminants of concern that were never detected in this medium are not included

Bolded contaminants exceed comparison values

J – Estimated value
B – Analyte also found in laboratory blank

NR – Not Reported
NA – Not Available

Carcinogen – Carcinogen (proven, probable, or possible) but CREG not available

Comparison Value Bases

Table 4. Maximum concentrations of contaminants of concern found in water from on-site in-situ groundwater sampling during the RI (1989-90)

Chemical Maximum Concentration
(ppb) Comparison Values
(ppb)

benzene 6,000 1^C

1,2-dichloroethane 41 0.4^C

ethylbenzene 27,000 1,000^R

tetrachloroethylene (PCE) 7.7 0.7^C

toluene 29,200 2,000^R

xylenes (total) 138,700 20,000^R

References: 3

Contaminants of concern that were never detected in this medium are not included

Bolded contaminants exceed comparison values

J – Estimated value
B – Analyte also found in laboratory blank

Comparison Value Bases

Table 5. Maximum concentrations of contaminants of concern found in water from residential wells on and near the site, 1977-1990

Chemical Date Maximum Concentration
(ppb) Comparison Values
(ppb)

benzene 1983 6,590 1^C

1,1-dichloroethane 1990 < 0.5 Carcinogen

1,2-dichloroethane 1983 117 0.4^C

1990 < 0.5

ethylbenzene 1984 113 1,000^R

phenol 1979 26 6,000^R

tetrachloroethylene (PCE) 1985 16 0.7^C

toluene 1986 1,726 2,000^R

1990 < 1

1,1,1-trichloroethane 1983 6 200^A

1990 < 0.5

xylenes (total) 1979 2,500 20,000^R

Reference: (3)

Contaminants of concern that were never detected in this medium are not included

Bolded contaminants exceed comparison values

NA – Not Available
Carcinogen – Carcinogen (proven, probable, or possible) but CREG not available

Comparison Value Bases

Table 6. Maximum concentrations of contaminants of concern found in surface water from on-site surface water bodies

Chemical Date Maximum Concentration
(ppb) Comparison Values
(ppb)

unfiltered filtered

arsenic 1989 2.4B
ND (2.3J)
0.02^C

barium 1989 30.1B 14.8B 700^A

benzene 1979 100 NR 1^C

1987 NR NR

1989 ND NR

bis(2-ethylhexyl)phthalate 1989 29 NR 3^C

cadmium 1989 4.4BJ
ND (3.0)
Carcinogen

copper 1989 14.2B 6.8BJ 1,300^MG

di-n-octylphthalate 1989 3.J NR NA

lead (total) 1989 10.9 3.3B 15^PL, Carcinogen

manganese 1989 55 36.2 50^R

oil and grease 1979 33,000 NR NA

1987 NR NR

1989 NR NR

tetrachloroethylene (PCE) 1979 1,200 NR 0.7^C

1987 ND NR

1989 ND NR

toluene 1979 NR NR 2,000^R

1987 1 NR

1989 ND NR

xylenes (total) 1979 100 NR 20,000^R

1987 NR NR

1989 ND NR

zinc 1989 73.4 149 3,000^R

Reference: (3)

Contaminants of concern that were never detected in this medium are not included

Bolded contaminants exceed comparison values

J – Estimated value
B – Also found in laboratory blanks

NR – Not Reported
ND – Not Detected, with detection level
NA – Not Available
Carcinogen – Carcinogen (proven, probable, or possible) but CREG not available

Comparison Value Bases

Table 7. Maximum concentrations of contaminants of concern found in sediment from on-site surface water bodies

Chemical Date Maximum Concentration
(ppm) Comparison Values
(ppm)

bis(2-ethylhexyl)phthalate 1987 NR 40^R

1989 66

2-butanone 1989 0.28 1,000^R

1,2-dichloroethylene (total) 1987 0.018 NA (cis)
40^R (trans)

1989 ND

4-methylphenol 1987 NR NA

1989 1.9

tetrachloroethylene (PCE) 1987 0.026 13.4^C

1989 0.013J

toluene 1987 0.032 400^R

1989 0.250

trichloroethylene 1987 0.032 64^C

1989 ND

xylenes (total) 1987 0.007 4,000^R

1989 ND

Reference: (3)

Contaminants of concern that were never detected in this medium are not included

Bolded contaminants exceed comparison values

J – Estimated value

NA – Not Available
Carcinogen– Carcinogen (proven, probable, or possible) but CREG not available

Comparison Value Bases

Table 8. Maximum concentrations of contaminants of concern found in on-site surface soil, from the RI (1989)

Chemical Maximum Concentration
(ppm) Comparison Values
(ppm)

ethylbenzene 0.004J 200^R

tetrachloroethylene (PCE) 0.130 10^C

toluene 0.095 400^R

1,1,1-trichloroethane 0.027 NA

trichloroethylene 0.230 60^C

xylenes (total) 0.059 4,000^R

Reference: (3)

Contaminants of concern that were never detected in this medium are not included

Bolded contaminants exceed comparison values

J – Estimated value

NA – Not Available
Carcinogen– Carcinogen (proven, probable, or possible) but CREG not available

Comparison Value Bases

Table 9. Maximum concentrations of contaminants of concern found in on-site sub-surface soil, from the RI (1989)

Chemical Maximum Concentration
(ppm) Comparison Values
(ppm)

antimony 7.1BJ 0.8^R

arsenic 3.9B 0.6^R, 0.4^C

barium 28.4BJ 100^R

benzo(a)anthracene 0.94 Carcinogen

benzo(a)pyrene 1.1 0.1^C

benzo(b)fluoranthene 1.1 Carcinogen

benzo(g,h,i)perylene 0.81 NA

benzo(k)fluoranthene 1.2 Carcinogen

2-butanone 0.056 1,000^R

chromium 11.3 2,000^R (III)
Carcinogen (VI)

cobalt 4.4B NA

copper 28.1 NA

1,2-dichloroethane 0.0035 8^C

ethylbenzene 0.95J 200^R

indeno(1,2,3-cd)pyrene 0.71 Carcinogen

lead (total)
(organic) 57.5J
1.5J Carcinogen

manganese 2,590 10^R

nickel 9.3 Carcinogen

phenanthrene 1.8 NA

tetrachloroethylene (PCE) 0.0024 1^C

toluene 2.4J 400^R

vanadium 16 NA

xylenes (total) 5.5J 4,000^R

zinc 38.1 600^R

Reference: (3)

Contaminants of concern that were never detected in this medium are not included
Bolded contaminants exceed comparison values

J – Estimated value
B – Analyte also found in laboratory blank
NA – Not Available
Carcinogen – Carcinogen (proven, probable, or possible) but CREG not available

Comparison Value Bases
E – ATSDR Environmental Media Evaluation Guide (EMEG)
R – Calculated from U.S. EPA Reference Dose (Chronic) by Ingestion, assuming child exposure, pica behavior
C – ATSDR Cancer Risk Evaluation Guide (CREG)

Table 10. Maximum concentrations of chemicals found in soil gas during the RI (1989)

Chemical Maximum Concentration
(µg/L) Comparison Values
(µg/L)

decane 25.9 NA

phenol 7.98 NA

toluene 3.15 NA

octane 9.83 NA

tetrachloroethylene (PCE) 2.07 0.002^C

o-xylene 2.09 NA

Reference: (3)

Contaminants of concern that were never detected in this medium are not included

Bolded contaminants exceed comparison values

NA – None Available

Comparison Value Bases

C – ATSDR Cancer Risk Evaluation Guide (CREG)

Table 11. Maximum concentrations of chemicals found in basement air from on-site samples during the RI (1989)

Chemical Maximum Concentration
(µg/L) No. Detects / No. Samples Comparison Values
(µg/L)

decane 18.2 7 / 16 NA

phenol 1.3 7 / 16 NA

toluene 0.043JB 8 / 10 NA

methylene chloride 0.13J 2 / 10 0.002^C

tetrachloroethylene (PCE) 0.010J 5 / 10 0.002^C

xylenes (total) 0.031JB 9 / 10 NA

acetone 0.031JB 7 / 10 NA

carbon disulfide 0.00043JB 6 / 10 NA

chloroform 0.0033JB 6 / 10 0.00004^C

2-butanone 0.0077JB 9 / 10 NA

1,1,1-trichloroethane 0.017J 10 / 10 NA

carbon tetrachloride 0.00033J 8 / 10 0.00007^C

trichloroethylene 0.00013J 2 / 10 0.0006^C

benzene 0.0087JB 9 / 10 0.0001^C

4-methyl-2-pentanone 0.0018J 1 / 10 NA (0.08^R)¹

styrene 0.0033JB 4 / 10 Carcinogen

Reference: (3)

Contaminants of concern that were never detected in this medium are not included

Bolded contaminants exceed comparison values

J – Estimated Value
B – Analyte detected in field blank at concentration at least 0.5 of sample concentration

NA – None Available
Carcinogen– Possible, Probable, or Proven Carcinogen, but no CREG available

Comparison Value Bases

1. According to IRIS 5/7/91, Reference Concentration was under review at U.S. EPA (11).

Table 12. Maximum concentrations of contaminants of concern found in surface water from the wetlands east of the site during the RI (1989)

Chemical Maximum Concentration
(ppb) Comparison Values
(ppb)

unfiltered filtered

arsenic 8.0BJ 3.4B 0.02^C

barium 263 51.4B 700^R

benzyl alcohol 6.J NR NA

2-butanone 7.J NR 6,000^R

chromium (total) 8.9B
ND (4.0)
10,000^R (III)
Carcinogen (VI)

copper 17.8BJ ND (2.0) 1,300^MG

1,2-dichloroethylene (total) 2.J NR 70^A (cis)
100^R (trans)

lead (total) 20.7 23.7 15^PL, Carcinogen

manganese 1,850 456 50^R

4-methylphenol 17 NR NA

phenol 7.J NR 6,000^R

toluene 3.J NR 2,000^R

vanadium 34.4B 5.6B 20^A

zinc 98.7 10,900 3,000^R

Reference: (3)

Contaminants of concern that were never detected in this medium are not included

Bolded contaminants exceed comparison values

J – Estimated value
B – Analyte found in laboratory blank

NA – Not Available
ND – Not Detected, with detection level
NR – Chemical not analyzed for
Carcinogen – Carcinogen (proven, probable, or possible) but CREG not available

Comparison Value Bases

Table 13. Maximum concentrations of contaminants of concern found in sediment from the wetlands, east of the site, from the RI (1989)

Chemical Maximum Concentration
(ppm) Comparison Values
(ppm)

benzyl alcohol 0.19J NA

2-butanone 0.044 1,000^R

1,2-dichloroethylene (total) 0.018 NA (cis)
40^R (trans)

toluene 0.025 400^R

trichloroethylene 0.004J 60^C

Reference: (3)

Contaminants of concern that were never detected in this medium are not included

Bolded contaminants exceed comparison values

J – Estimated value

NA – Not Available

Comparison Value Bases

Table 14. Maximum concentrations of chemicals found in basement air in off-site background samples during the RI (1989)

Chemical Maximum Concentration
(µg/L) No. Detects / No. Samples Comparison Values
(µg/L)

toluene 0.036JB 3 / 3 NA

methylene chloride 0.011J 2 / 3 0.002^C

tetrachloroethylene (PCE) 0.002J 3 / 3 0.002^C

xylenes (total) 0.033JB 3 / 3 NA

acetone 0.27J 3 / 3 NA

carbon disulfide 0.00023JB 2 / 3 NA

chloroform 0.003JB 3 / 3 0.00004^C

2-butanone 0.0046JB 3 / 3 NA

1,1,1-trichloroethane 0.011J 3 / 3 NA

carbon tetrachloride 0.00026J 2 / 3 0.00007^C

trichloroethylene 0.0037J 2 / 3 0.0006^C

benzene 0.005JB 3 / 3 0.0001^C

4-methyl-2-pentanone 0.004J 1 / 3 NA (0.08^R)¹

Reference: (3)

Contaminants of concern that were never detected in this medium are not included

Bolded contaminants exceed comparison values

J – Estimated Value
B – Analyte detected in field blank at concentration at least 0.5 of sample concentration

NA – None Available
Carcinogen– Possible, Probable, or Proven Carcinogen, but no CREG available

Comparison Value Bases

1. According to IRIS 5/7/91, Reference Concentration was under review at U.S. EPA (11).

Table 15. Number of cancer deaths, by age group, in Sanborn Township, Alpena County, Michigan, 1985-1991

Year Age Group

< 45 45-54 55-64 65-74 75-84 85+ All ages

1985

1 2

3

1986

2 1 3

1987

2 1 1 2 6

1988
2

2 1 5

1989 1
1 2 3 1 8

1990

2 2

4

1991 1
4 1 2 1 9

All years 2 2 10 8 10 6 38

Reference: 41

Table 16. Number of cancer deaths, by site, in Sanborn Township, Alpena County, Michigan, 1985-1991

Cancer Site 1985 1986 1987 1988 1989 1990 1991 All years

Trachea, Bronchus, or Lung 1

3 3 2 3 12

Breast 1 1

1
3

Pancreas
2 1

3

Prostate

1
1 1
3

Stomach 1

1 2

Nasal Cavity or Sinus

1 1

2

Colon

2 2

Lymphoma

1

1

Brain

1

1

Ovaries

1

1

Leukemia

1

1

Myeloma

1

1

Gall Bladder

1

1

Liver

1 1

Esophagus

1 1

Not Specified

1
1
1 3

All sites 3 3 6 5 8 4 9 38

Reference: 41

Table 17. Number of cancer deaths, by age and sex, in Sanborn Township, Alpena County, Michigan, 1985-1991

Age Male Female Total

< 45 1 1 2

45-54 1 1 2

55-64 6 4 10

65-74 3 5 8

75-84 5 5 10

85+ 5 1 6

All ages 21 17 38

Reference: 41

RESPONSIVENESS STATEMENT

The MDPH released a draft of this Public Health Assessment for public comment on December 14, 1994. The comment period lasted until January 13, 1995. The MDPH received no comments in this period.

FOOTNOTES

1. Pica behavior is an abnormal consumption of non-food material, such as soil, which appears most often in children under the age of 5.

2. There is no statement of the duration of these effects in either the Toxicological Profile (18) or the sources cited therein (19, 20). However, one of the source studies (19) suggests that the effects were transient, since the effects were only noticed at the highest concentration used and their experimental design included groups who experienced both increasing and decreasing toluene concentrations on successive days, with no report of carryover.

Table of Contents

Agency for Toxic Substances and Disease Registry, 1825 Century Blvd, Atlanta, GA 30345
Contact CDC: 800-232-4636 / TTY: 888-232-6348

Department of Health and Human Services

VOLATILE ORGANIC CHEMICALS	OTHER SEMI-VOLATILE ORGANIC CHEMICALS
acetone	benzyl alcohol
benzene	bis(2-ethylhexyl)phthalate
2-butanone	di-n-octylphthalate
carbon disulfide	4-methylphenol
carbon tetrachloride	phenol
chloroform
1,1-dichloroethane
1,2-dichloroethane	PETROLEUM HYDROCARBONS
1,2-dichloroethylene (total)
ethylbenzene	decane
isopropylbenzene	octane
4-methyl-2-pentanone	oil and grease
methylene chloride
n-propylbenzene	METALS
styrene
tetrachloroethylene (PCE)	antimony
toluene	arsenic
1,1,1-trichloroethane	barium
trichloroethylene	beryllium
1,2,4-trimethylbenzene	cadmium
1,3,5-trimethylbenzene	chromium
xylenes (total)	cobalt
	copper
POLYNUCLEAR AROMATIC HYDROCARBONS (PAHs)	lead
POLYNUCLEAR AROMATIC HYDROCARBONS (PAHs)	manganese
	mercury
benzo(a)anthracene	nickel
benzo(a)pyrene	vanadium
benzo(b)fluoranthene	zinc
benzo(g,h,i)perylene
benzo(k)fluoranthene
chrysene
indeno(1,2,3-cd)pyrene
naphthalene
phenanthrene

Chemical	Date	Maximum Concentration (ppb)		Comparison Values (ppb)
Chemical	Date	unfiltered	filtered	Comparison Values (ppb)
arsenic	1989-90	106	19.7	0.02^C
barium	1989-90	711.J	227	700^R
benzene	1985	21,000	NR	1^C
benzene	1989-90	6,230	NR	1^C
benzo(a)anthracene	1990	2.J	NR	Carcinogen
benzo(a)pyrene	1990	3.J	NR	0.005^C
benzo(b)fluoranthene	1990	4.J	NR	Carcinogen
benzo(g,h,i)perylene	1990	3.J	NR	NA
benzo(k)fluoranthene	1990	3.J	NR	Carcinogen
beryllium	1989-90	5.3	2.8B	0.008^C
bis(2-ethylhexyl)phthalate	1989-90	4.J	NR	3^C
cadmium	1989-90	11.3	3.4B	Carcinogen
chromium (total)	1989-90	349	9.B	10,000^R (III) Carcinogen (VI)
chrysene	1990	3.J	NR	Carcinogen
cobalt	1989-90	87.3	14.4B	NA
copper	1989-90	29,900	178	1,300^MG
1,1-dichloroethane	1989-90	0.39	NR	Carcinogen
1,2-dichloroethane	1985	13	NR	0.4^C
1,2-dichloroethane	1989-90	1.5	NR	0.4^C
ethylbenzene	1985	1,200	NR	1,000^R
ethylbenzene	1989-90	1,500	NR	1,000^R
indeno(1,2,3-cd)pyrene	1990	3.J	NR	Carcinogen
lead (total) Organic	1989-90	172	46.3	15^PL, Carcinogen
lead (total) Organic	1989-90	1.1	NR	15^PL, Carcinogen
manganese	1989-90	4,810	4,240	50^R
mercury	1989-90	61.6	18.9J	NA
naphthalene	1989-90	239	NR	20^A
nickel	1989-90	321	54.4	Carcinogen
phenanthrene	1990	3.J	NR	NA
isopropylbenzene	1989-90	7	NR	NA
n-propylbenzene	1989-90	33.J	NR	NA
styrene	1989-90	50	NR	Carcinogen
tetrachloroethylene (PCE)	1985	7	NR	0.7^C
toluene	1985	53,000	NR	2,000^R
toluene	1989-90	17,300	NR	2,000^R
1,1,1-trichloroethane	1985	20	NR	200^A
1,1,1-trichloroethane	1989-90	0.84	NR	200^A
trichloroethylene	1985	21	NR	3^C
1,2,4-trimethylbenzene	1989-90	1,120	NR	NA
1,3,5-trimethylbenzene	1989-90	1,090	NR	NA
vanadium	1989-90	325	9.4B	20^A
xylenes (total)	1985	11,000	NR	20,000^R
xylenes (total)	1989-90	8,340	NR	20,000^R
zinc	1989-90	50,100	6,470	3,000^R

Chemical	Date	Maximum Concentration (ppm)	Comparison Values (ppm)
bis(2-ethylhexyl)phthalate	1987	NR	40^R
bis(2-ethylhexyl)phthalate	1989	66	40^R
2-butanone	1989	0.28	1,000^R
1,2-dichloroethylene (total)	1987	0.018	NA (cis) 40^R (trans)
1,2-dichloroethylene (total)	1989	ND	NA (cis) 40^R (trans)
4-methylphenol	1987	NR	NA
4-methylphenol	1989	1.9	NA
tetrachloroethylene (PCE)	1987	0.026	13.4^C
tetrachloroethylene (PCE)	1989	0.013J	13.4^C
toluene	1987	0.032	400^R
toluene	1989	0.250	400^R
trichloroethylene	1987	0.032	64^C
trichloroethylene	1989	ND	64^C
xylenes (total)	1987	0.007	4,000^R
xylenes (total)	1989	ND	4,000^R

Chemical	Maximum Concentration (µg/L)	Comparison Values (µg/L)
decane	25.9	NA
phenol	7.98	NA
toluene	3.15	NA
octane	9.83	NA
tetrachloroethylene (PCE)	2.07	0.002^C
o-xylene	2.09	NA

Chemical	Maximum Concentration (µg/L)	No. Detects / No. Samples	Comparison Values (µg/L)
decane	18.2	7 / 16	NA
phenol	1.3	7 / 16	NA
toluene	0.043JB	8 / 10	NA
methylene chloride	0.13J	2 / 10	0.002^C
tetrachloroethylene (PCE)	0.010J	5 / 10	0.002^C
xylenes (total)	0.031JB	9 / 10	NA
acetone	0.031JB	7 / 10	NA
carbon disulfide	0.00043JB	6 / 10	NA
chloroform	0.0033JB	6 / 10	0.00004^C
2-butanone	0.0077JB	9 / 10	NA
1,1,1-trichloroethane	0.017J	10 / 10	NA
carbon tetrachloride	0.00033J	8 / 10	0.00007^C
trichloroethylene	0.00013J	2 / 10	0.0006^C
benzene	0.0087JB	9 / 10	0.0001^C
4-methyl-2-pentanone	0.0018J	1 / 10	NA (0.08^R)¹
styrene	0.0033JB	4 / 10	Carcinogen

Year	Age Group
Year	< 45	45-54	55-64	65-74	75-84	85+	All ages
1985			1	2			3
1986					2	1	3
1987			2	1	1	2	6
1988		2			2	1	5
1989	1		1	2	3	1	8
1990			2	2			4
1991	1		4	1	2	1	9
All years	2	2	10	8	10	6	38

Cancer Site	1985	1986	1987	1988	1989	1990	1991	All years
Trachea, Bronchus, or Lung	1			3	3	2	3	12
Breast	1	1				1		3
Pancreas		2	1					3
Prostate			1		1	1		3
Stomach	1						1	2
Nasal Cavity or Sinus			1	1				2
Colon							2	2
Lymphoma			1					1
Brain			1					1
Ovaries				1				1
Leukemia					1			1
Myeloma					1			1
Gall Bladder					1			1
Liver							1	1
Esophagus							1	1
Not Specified			1		1		1	3
All sites	3	3	6	5	8	4	9	38

Age	Male	Female	Total
< 45	1	1	2
45-54	1	1	2
55-64	6	4	10
65-74	3	5	8
75-84	5	5	10
85+	5	1	6
All ages	21	17	38