Chlordane in Drinking Water
EPA limits, health effects, and what to do if your water is affected.
🩨 Health Effects
Long-term exposure may cause liver problems, nervous system damage, and increased cancer risk. Chlordane is a persistent organic pollutant that accumulates in the food chain and in fatty tissue.
📍 Sources in Water
Widely used as a termiticide in homes until it was banned in 1988. Can leach from soil into groundwater near treated structures and persist for decades.
✅ What To Do
Activated carbon filtration and reverse osmosis can reduce chlordane. Violations in public water supplies are very rare; it is more of a concern for private wells near homes treated before 1988.
Check your tap water for Chlordane
Search your ZIP code to see if your water system has had Chlordane violations, plus lead testing results and an overall safety grade.
Search your ZIP code →Data from the EPA's Safe Drinking Water Information System (SDWIS). MCLs reflect minimum federal standards; some contaminants may pose health risks below these thresholds.