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Human Health Carcinogen Fact Sheet for Heptachlor: (Human Health Carcinogen - fish ingestion only), Wisconsin Department of Natural Resources

Heptachlor table of values for public and non-public water supplies

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Human Health Carcinogen Fact Sheet for Heptachlor: (Human Health Carcinogen - fish ingestion only), Wisconsin Department of Natural Resources (PDF)(1 pg, 8 K)
Heptachlor table of values for public and non-public water supplies