EPA: funding and pollution problems persist.
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D003625:Data Collection; D005380:Financing, Government; D006801:Humans; D014481:United States; D014484:United States Environmental Protection Agency / Q000191:economics*; D014865:Waste Disposal, Fluid / Q000191:economics* / Q000379:methods*; D018508:Water Purification / Q000191:economics* / Q000379:methods*; D014881:Water Supply