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Unread 02-14-2012, 06:03 PM   #2
Harbormaster
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"Metolachlor has been detected in ground and surface waters and concentrations ranging from 0.08 to 4.5 parts per billion (ppb) throughout the U.S.[5] It is classified as a Category C pesticide by the United States Environmental Protection Agency (US EPA) which indicates limited evidence of carcinogenicity.[6] Evidence of the bioaccumulation of metolachlor in edible species of fish as well as its adverse effect on the growth and development raise concerns on its effects on human health. There is no set maximum concentration (maximum contaminant level, MCL) for metolachlor that is allowed in drinking water, the US EPA does have a health advisory level (HAL) of 0.525 mg/L.

Metolachlor induces cytotoxic and genotoxic effects in human lymphocytes.[7] Genotoxic effects have also been observed in tadpoles exposed to metolachlor.[8] Evidence also reveals that metolachlor affects cell growth. Cell division in yeast was reduced,[9] and chicken embryos exposed to metolchlor showed a significant decrease in the average body mass compared to the control."

It's an herbicide. No indication if caustic soda cleans the stuff.
So, your call.
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