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HEALTH CONSULTATION

RAY HOLTMAN FARM
QUINCY, ADAMS COUNTY, ILLINOIS




Table 1.

Completed Exposure Pathways
Ray Holtman Farm, Adams County, Quincy, Illinois
Pathway Name: Source Medium Exposure Point Exposure Route Receptor Population Time of Exposure Exposure Activities Estimated Number Exposed Chemicals
Surface Soil Site & Background Soil On the site Ingestion
Inhalation
Dermal
Farmers
Trespassers
Past
Present
Future
Contacting Soil 5 manganese
Groundwater Site & Background Groundwater Area Wells (tap) Ingestion
Inhalation
Dermal
Residents
Down-gradient
Past
Present
Future
Using well water 10 manganese




Table 2.

Human Health Effects at Various Hydrogen Sulfide Concentrations in Air
Pathway Name: Source Medium Exposure Point Exposure Route Receptor Population Time of Exposure Exposure Activities Estimated Number Exposed Chemicals
Ground-water Site & Background Groundwater Area Wells (tap) Ingestion
Inhalation
Dermal
Residents
Down-gradient
Future? Using well water 50 arsenic
vanadium
Surface Water & Sediments Site & Background Surface Water & Sediments Ghost Hollow Creek Ingestion
Inhalation
Dermal
Trespassers Past?
Present?
Future?
Wading in the water 5 manganese
arsenic


Table 3.

Samples Exceeding Health Comparison Values for Manganese in Water. Ray Holtman Farm, Adams County, Quincy, Illinois
SAMPLE
LOCATION
RESULTS
(in ppb)
HEALTH COMPARISON VALUES EXCEEDED
Groundwater Child RMEG (50ppb) Adult RMEG (200ppb)
GW-7

1,120

XX
GW-8104Xno
GW-8 duplicate375XX
Surface Water
SW-1 background5,890XX
SW-3302XX
SW-3 duplicate291XX
SW-468.2Xno
SW-52,020XX
Residential Wells
RW-474X

no

RW-4 duplicate75X

no

RMEG- Reference Dose Media Evaluation Guide
ppb - parts per billion



Table 4.

Samples Exceeding Health Comparison Values for Manganese in Soil and Sediment. Ray Holtman Farm, Adams County, Quincy, Illinois
SAMPLELOCATION RESULTS
(in ppb)
HEALTH COMPARISON VALUES EXCEEDED
Surface Soil Child RMEG (300ppm) Adult RMEG (4,000ppm)
SS-1653X

no

SS-2881X

no

SS-3 background542X

no

Sediment 1992
ST-2696X

no

ST-3 background407X

no

Sediment 1995
SS-1 background2,710X

no

SS-3641X

no

SS-3 duplicate576X

no

SS-5936X

no

RMEG- Reference Dose Media Evaluation Guide
ppb - parts per billion



Table 5.

Samples Exceeding Health Comparison Values for Arsenic. Ray Holtman Farm, Adams County, Quincy, Illinois
SAMPLE
LOCATION
RESULTS HEALTH COMPARISON VALUES EXCEEDED
Groundwater (in ppb) Child EMEG 3ppb Adult EMEG 10ppb
GW-731.4XX
Sediment 1995(in ppm)Child EMEG 20ppmAdult EMEG 200ppm
SS-121.2Xno

EMEG- Environmental Media Evaluation Guide (ATSDR)
ppb - parts per billion
ppm - parts per million



Table 6.

Samples Exceeding Health Comparison Values for Vanadium. Ray Holtman Farm, Adams County, Quincy, Illinois
SAMPLE
LOCATION
RESULTS
(in ppb)
HEALTH COMPARISON VALUES EXCEEDED
Groundwater Child EMEG 30ppb Adult EMEG 100ppb
GW-743X

no

Surface Water
SW-533.2X

no

EMEG- Environmental Media Evaluation Guide (ATSDR)
ppb - parts per billion


Attachment 1


Attachment 2


Attachment 3


Attachment 4


Attachment 5

ATTACHMENT 6

Comparison Values Used In Screening Contaminants For Further Evaluation

Environmental Media Evaluation Guides (EMEGs) are developed for chemicals based on theirtoxicity, frequency of occurrence at National Priority List (NPL) sites, and potential for humanexposure. They are derived to protect the most sensitive populations and are not cut-off levels,but rather comparison values. They do not consider carcinogenic effects, chemical interactions,multiple route exposure, or other media-specific routes of exposure, and are very conservativeconcentration values designed to protect sensitive members of the population.

Reference Dose Media Evaluation Guides (RMEGs) are another type of comparison valuederived to protect the most sensitive populations. They do not consider carcinogenic effects,chemical interactions, multiple route exposure, or other media-specific routes of exposure, andare very conservative concentration values designed to protect sensitive members of thepopulation.

Cancer Risk Evaluation Guides (CREGs) are estimated contaminant concentrations based on aone excess cancer in a million persons exposed to a chemical over a lifetime. These are also veryconservative values designed to protect sensitive members of the population.


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