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HEALTH CONSULTATION

UNION MECHLING COMPANY
SENECA, GRUNDY COUNTY, ILLINOIS




Table 1.

On-site Soil and Sediment Contaminants
Contaminant Maximum
Concentration
(ppm)
Date Comparison Value
(ppm)
Aroclor-126089.0198910 EMEG*
4,4'-DDD5.219893 CREG
4,4'-DDE5.419913 CREG
4,4'-DDT9.219912 CREG
Lead20,90019891,000 IL AL
ppm - parts per million
EMEG - Adult Environmental Media Evaluation Guide (ATSDR)
* - Total PCBs
CREG - Cancer Risk Evaluation Guide for 1 x 10-6 excess cancer risk
IL AL - Illinois Action Level

Table 2.

Off-site Groundwater Contaminants
Contaminant Maximum Concentration
(ppb)
LocationDate Comparison Value
(ppb)
Thallium16.0Seneca Hunt Club1991 0.4 LTHA
2.0 MCL
Antimony83.0Seneca Hunt Club199110.0 RMEG
Sodium521,000Seneca Hunt Club199120,000 IDPH
Manganese2,850Seneca Hunt Club199150 MCL
Sulfate966,000Seneca Hunt Club1991500,000 PMCL
ppb - parts per billion
LTHA - Long Term Health Advisory
MCL - Maximum Contaminant Level
RMEG - Reference Dose Media Evaluation Guide
PMCL - Proposed Maximum Contaminant Level


Table of Contents

  
 
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