Transcription of WATER QUALITY EVOLUTION FROM INDUSTRIALIZATION TO …
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Ed wa rd (Ted ) StetsU . S . G eo lo g ic a l S u r veyNa tio n a l Res ea rc h Pro g ra mNa tio n a l Wa ter Q u a lity A s s es s m en tB o u ld er, C O , U SAWATER QUALIT Y EVOLUTIONFROM INDUSTRIALIZATION TO THE AGE OF THE INTERNETACKNOWLEDGEMENTS USGS NAWQA Century of Trends (2009 2013) USGS NAWQA Cycle III Surface WATER trends team (2013-present) Valerie Kelly Whitney Broussard Thor Smith Charlie Crawford Donna Myers Lori Sprague20thCentury EVOLUTION of WATER qualityNitrate concentrations in US rivers remain elevated following historical EVOLUTION of WATER QualitySchuylkill River, Philadelphia PA, 1868 First public waterworks built in 1802. 136 public WATER utilities by 1860. 600 by 1880. WATER availability results in increased WATER usage.
•State Clean Water Revolving Fund initiated. •Support for nonpoint source pollution abatement established (section 319h) TIMELINE OF RECENT WATER QUALITY POLICY Beginnings Sanitation Industrial Growth Clean Water 2001 –Solid Waste Authority of Northern Cook County v. U.S. Army Corps of Engineers
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