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PUBLIC HEALTH ASSESSMENT ADDENDUM

CHEM-DYNE CORPORATION
HAMILTON, BUTLER COUNTY, OHIO


APPENDICES

APPENDIX A

Figure 1
Figure 1. Location of Chem-Dyne Site

Figure 2
Figure 2. Site Map

Figure 3
Figure 3. Census Tracts in the Hamilton-Middletown, Ohio SMSA

Figure 4
Figure 4. Approximate Surface Soil Sample Locations

Figure 5

Test Pit and "Grab" Sample Locations

Figure 6
Figure 6. Chem-Dyne Site Well Locations

Figure 7
Figure 7. Concentrations of Priority Pollutant VOCs

Figure 8
Figure 8. Location of Active Production Wells In Vicinity of the Chem-Dyne Site



APPENDIX B

The following section was not available in electronic format for conversion to HTML at the time of preparation of this document. To obtain a hard copy of the document, please contact:

Agency for Toxic Substances and Disease Registry
Division of Health Assessment and Consultation
Attn: Chief, Program Evaluation, Records, and Information Services Branch
E-56
1600 Clifton Road NE, Atlanta, Georgia 30333


APPENDIX C

Calculations for Chemicals that do not cause cancer:

Comparison Value = U.S. EPA RfD x Body Weight
------------------------
Ingestion Rate

Exposure Dose = Medium Concentration x intake rate x exposure factor
------------------------------------------------
Body Weight

Medium Concentration = the concentration of the chemical in water or soil.

Intake Rate = The amount of water or soil a person would drink or eat.

Exposure Factor = The amount of time in years that a person would be exposed to the specific chemical. No exposure factor is used if the exposure occurs daily over a person's lifetime.

Body Weight = The amount a person weights. Generally 70 kilograms is used for an adult and 10-15 kilograms for a child.


Calculation of risk for those chemicals that may cause cancer:

Comparison Value = Risk &nbsp &nbsp &nbsp Body Weight
------------ x -----------
Slope Factor &nbsp &nbsp &nbsp &nbsp Ingestion Rate

Lifetime Excess Cancer Risk =

Annual exposure dose x slope factor x exposure factor in years

Dose is in mg/kg/day

Slope factor = The U.S.EPA cancer slope factor, mg/kg/day

Exposure factor = A ratio of the amount of time in years that a person would be exposed to the specific chemical.


APPENDIX D

TABLE 1-D
ON-SITE GROUNDWATER CONTAMINATION (1983)

CHEMICAL CONCENTRATION
(µg/L)
COMPARISON
VALUE (µg/L)
Benzene ND-160 51
Carbon tetrachloride ND-3,000 32
1,2-dichloroethane ND-3,900 51
1,1,1-trichloroethane ND-3,100 2001
1,1,2-trichloroethane ND-2,800 10003
1,1,1,2-tetrachloroethane ND-130 22
Chloroform ND-22,000 1001
1,2-dichloroethene ND-40,000 1001
Ethylbenzene ND-1,100 7001
Methylene Chloride 6-3,100 2,0004
Tetrachloroethene ND-3,900 51
Toluene ND-7,800 1,0001
Trichloroethene ND-58,000 51
Vinyl chloride ND-47 0.22
Acetone 48-29,000 3,5003
2-Butanone ND-7,500 1,7003
4-methyl-2-pentanone ND-3,100 NA
Barium ND-1,330 2,0001
Mercury ND-1.9 21
      ND=Chemical not detected
      µg/L=micrograms per liter=parts per billion
      1=U.S. EPA Maximum Contaminant Limit
      2=Cancer Risk Guide calculated by ODH
      3=Noncancer comparison value calculated by ODH
      4=ATSDR EMEG



TABLE 2-D
HISTORICAL CONTAMINANT LEVELS
IN ON-SITE MONITORING WELL MW-10

CHEMICAL 1982 (µg/L) 1983 (µg/L) 1992 (µg/L) MCL (µg/L)
Benzene 700 550K 1.9 5
Carbon tetrachloride 760 ND 1.8 3
1,2-dichloroethane 16,000 3,900 4.7 5
1,1,1-trichloroethane 2,700 3,100 4.2 200
Chloroform 3,300 8,800 18 100
1,2-trans dichloroethene 31,000 40,000 3.3 100
Tetrachloroethene 980 3,900 69 5
Toluene 6,100 7,800 1.0 1,000
Trichloroethene 8,400 58,000 62 5
Vinyl chloride ND 2,000K 14 0.21
    ND = Chemical not detected
    µg/L = micrograms per liter=parts per billion
    1= Cancer Risk Guide Calculated by ODH



TABLE 3-D
WASTE MATERIALS
ON-SITE BUILDING

CHEMICAL CONCENTRATION (mg/kg)
Hexachlorobenzene 9.3
Bis(2-ethylhexyl) phthalate 150
1,3-dichlorobenzene 90
Tetrachloroethene 60
Endrin 0.25
Dieldrin 0.06
Lead 924
Chromium 205
Zinc 8,561
        mg/kg=milligrams per kilogram=parts per million


TABLE 4-D
GROUNDWATER CONTAMINATION IN OFF-SITE MONITORING WELLS (1983)

CHEMICAL CONCENTRATION
(µg/L)
COMPARISON
VALUE (µg/L)
Benzene ND-240 51
Chlorobenzene ND-2,000 7002
1,2-dichloroethane ND-13,000 51
1,1,1-trichloroethane ND-300 2001
1,1-dichloroethane ND-2,200 3,5002
1,1,2-trichloroethane ND-29,000 51
1,1,2,2-tetrachloroethane ND-9,400 23
Chloroethane ND-1,400 NA
Chloroform ND-3,300 1001
1,1-dichloroethene ND-3,900 71
1,2-dichloroethene ND-16,000 1001
Trichloroethene ND-9,100 51
Vinyl chloride ND-11,000 0.23
Acetone ND-77,000 3,5002
Barium 101-1,940 2,0001
Mercury ND-60 21
      ND=Chemical not detected
      NA=Comparison value not available
      µg/L=micrograms per liter=Parts per billion
      1=U.S. EPA Maximum Contaminant Level
      2=Noncancer comparison value calculated by ODH
      3=Cancer Risk Guide calculated by ODH


TABLE 5-D
HISTORICAL CONTAMINANT LEVELS
IN OFF-SITE MONITORING WELL MW-15

CHEMICAL 1982 (µg/L) 1983 (µg/L) 1992 (µg/L) MCL µg/L
Benzene ND ND 92 5
Carbon Tetrachloride ND ND 1 3
1,2-dichloroethane 21,000 13,000 314 5
1,1,1-trichloroethane ND ND 79 200
Chloroform 5,800 3,300 162 100
1,2-trans dichloroethene 15,000 12,000 79 100
Tetrachloroethene 750 1,500K 215 5
Toluene 1,400 1,900K 36 1,000
Trichloroethene 8,100 9,100 128 5
Vinyl chloride 5,100 6,500 260 0.21
    ND = Chemical not detected
    µg/L = micrograms per liter=parts per billion
    1=ODH Cancer Risk Guide



TABLE 6-D
CONTAMINANT LEVELS IN OFF-SITE PRODUCTION WELLS (1983)

CHEMICAL BECKETT
PAPER
CHAMPION
PAPER
HAMILTON
ELECTRIC
VAUGHN
BUILDING
COMPARISON
VALUE (µg/L)
1,1,1-
trichloroethane

ND

2.0

ND

11.0

2001
1,2-dichloroethane ND 3.0 ND ND 1001
Methylene Chloride 4.0 5.0 ND 3.0 2,0002
Trichloroethene ND 4.0 ND ND 51
Vinyl Chloride ND ND ND 14.0 0.23

ND = Chemical not detected
µg/L = micrograms per liter=Parts per billion
1 = U.S. EPA Maximum Contaminant Level
2 = ATSDR EMEG
3 = Cancer Risk value calculated by ODH


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