Resources Environmental Protection Agency (EPA) private well FAQ Commonly Used Acronyms EPA National Primary Drinking Water Regulations PA DEP Standards Water Tests: What Do the Numbers Mean? Penn State Water Results Interpretation Tool PA DEP Office of Oil & Gas Management’s Marcellus Shale Page Request Information Your Name* Your Email* Your Phone*Request For* * Required FieldsCAPTCHACommentsThis field is for validation purposes and should be left unchanged.