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Water: Water Treatment

Drinking Water Treatment Residuals Management

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Drinking Water Treatment Plant Residuals Management Technical Report: Summary of Residuals Generation, Treatment, and Disposal at Large Community Water Systems (PDF), December 2011 (377 pp, 3.0MB) 

The purpose of this report is to summarize information EPA collected to assess drinking water treatment plant (WTP) discharges of treatment residuals to surface water. EPA identified WTPs for analysis in its 2004 Effluent Guidelines Program Plan based on public comments and preliminary review of available data. In addition to literature review and site visits, EPA collected technical and financial information about WTPs through a national survey. After considering extensive information about WTPs, the production and management of treatment residuals, the characteristics of residuals waste streams, and after considering resource availability in the context of other priorities, EPA determined that discharges of treatment residuals are best addressed through National Pollutant Discharge Elimination System (NPDES) permits. Accordingly, this report provides information about drinking water treatment technologies and residuals best management practices that may be useful to NPDES permit writers and WTPs with NPDES permits. Sections 2, 3, 9, 10, and 11 of this report summarize the data that EPA collected. Sections 4 through 8 and Sections 12 and 13 provide technical information particularly relevant to NPDES permitting of treatment residuals.

Contact Information

Project Manager:
Tom Born (born.tom@epa.gov)
Engineering and Analysis Division, Office of Science and Technology
Phone 202-566-1001

Engineering:
Ahmar Siddiqui (siddiqui.ahmar@epa.gov)
Engineering and Analysis Division, Office of Science and Technology
Phone 202-566-1044

Economics:
Erik Helm (helm.erik@epa.gov)
Engineering and Analysis Division, Office of Science and Technology
Phone 202-566-1049

Work Breakdown Structure Cost Models for Drinking Water Treatment Technologies:
Rajiv Khera (khera.rajiv@epa.gov)
Standards and Risk Management Division, Office of Ground Water and Drinking Water
Phone 202-564-4881

Technical Analysis for Determination of Technology-Based Permit Limits for the Guaynabo Drinking Water Treatment Facility (PDF) NPDES No. PR0022438, March 2009 (126 pp, 3.23MB) 

This report was prepared by the Engineering and Analysis Division, Office of Science and Technology, to assist EPA Region 2 in the development of site-specific technology-based National Pollutant Discharge Elimination System (NPDES) permit limits for drinking water treatment plants in Puerto Rico. This report focuses on drinking water treatment residuals discharged from the Guaynabo Water Treatment Plant. The best professional judgment (BPJ) analysis summarized in this report compares treatment-in-place with two technology options to derive technology-based NPDES permit limits. This report complements the Drinking Water Treatment Plant Residuals Management Technical Report by illustrating BPJ permitting analysis for a conventional water treatment plant, including technology-costing analysis.

Contact Information

Jeff Gratz (gratz.jeff@epa.gov)
U.S. EPA Region 2, Chief, Clean Water Regulatory Branch
Phone 212-637-3891

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