Well Water Testing Effective Wednesday, January 13, 2010, the Chester County Health Department will no longer accept samples for well water testing. Please contact one of the five DEP-Certified Laboratories in Chester County to have your well water tested. Links Instructions on Disinfecting your Water Supply Public Water Fluoridation Map for Chester County Wisconsin Department of Natural Resources Drinking Water Emergencies from DEP EPA Safe Drinking Water Act USGS Pennsylvania Water Information Pennsylvania watershed organizations and information DEP information for private well owners
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Chester County Health Department
Chester County Health Department