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HEALTH CONSULTATION

MERVIS INDUSTRIES
MATTOON, COLES COUNTY, ILLINOIS


ATTACHMENTS


Attachment 1


Attachment 2


Attachment 3


Attachment 4

ATTACHMENT 5

Comparison Values Used In Selecting Contaminants

Environmental Media Evaluation Guidelines (EMEGs) are developed for chemicals based on their toxicity, frequency ofoccurrence at National Priority List (NPL) sites, and potential for human exposure. They are derived to protect the mostsensitive 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 value derived to protect the mostsensitive populations. They do not consider carcinogenic effects, chemical interactions, multiple route exposure, or othermedia-specific routes of exposure, and are very conservative concentration values designed to protect sensitive members ofthe population.

Cancer Risk Evaluation Guides (CREGs) are estimated contaminant concentrations based on a one excess cancer in amillion persons exposed to a chemical over a lifetime. These are also very conservative values designed to protect sensitivemembers of the population.


Table 1.

On- and Off-site Soil/Sediment Contamination -- Mervis Industries
Chemical Name Frequency
of
Detection
Maximum Concentration Comparison Value
(ppm)
Source of
Comparison Value
Illinois Background Soils
(ppm)
Soil Sediment Soil
(ppm)
Sediment
(ppm)
2-methylnapthalene 4/8 1/5 68 .088 N/A
Phenanthrene 6/8 3/5 27 .340 N/A
Chrysene 6/8 -- 2.8 -- N/A
Benzo(a)pyrene 5/8 2/5 1.5 .25 0.1 CREG
Hepatachlor
Epoxide
2/8 -- .26 -- .08 CREG
Arochlor-1232 1/8 -- 1.9 -- N/A
Arochlor-1240 2/8 -- 13 -- N/A
Arochlor-1248 3/8 -- 1.4 -- N/A
Arochlor-1260 2/8 -- .9 -- N/A
Copper 8/8 -- 533 -- 1-156
Iron 8/8 -- 174,000 -- 3,200-80,000
Lead 8/8 -- 1,130 -- 1,000 IDPH

*ppm = parts per million


Table 2.

Potential Exposure Pathways
Pathway name Exposure Pathway Elements Time
Source Environmental medium Point of exposure Route of exposure Exposed population
Soil Site Soil On-site soil Ingestion
Inhalation
Skin contact
Trespassers & on-site workers. (estimated number of persons potentially exposed = 20) Past
Present
Future


Table of Contents

  
 
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