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https://yosemite.epa.gov/oa/eab_web_docket.nsf/Attachments%20By%20ParentFilingId/574172380810616A85257C1600487133/$FILE/Ex%2012%20(1991%20TSD)%20(AR%20I3).pdf
March 1991 EPA Technical Support Document For Water Quality-based Toxics Control EXHIBIT 12. 5. PERMIT REQUIREMENTS 5.1 INTRODUCTION As the final step in the “standards-to-permits” process, develop- ment of permit requirements is often the culmination of …
https://yosemite.epa.gov/OA/EAB_WEB_Docket.nsf/Filings%20By%20Appeal%20Number/8A5F98CC9E48C93A85257B0C006FF9F3/$File/Opposition%20to%20Petition%20for%20Review%20--%20Ex.%2051...23.17.pdf
This document provides technical guidance for assessing and regulating the discharge of toxic substances to the waters of the United States. It was issued in support of EPA regulations and policy initiatives involving the application of biological and chemical assessment techniques to control toxic pollution to surface waters.
https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=100002CU.TXT
----- EXECUTIVE SUMMARY The revised Technical Support Document for Water Quality-based Toxics Control (TSD) provides States and Regions with guidance on procedures for use in the water quality-based control of toxic pollutants.
https://archive.epa.gov/airquality/ozonepollution/designations/web/pdf/epatsd-5.pdf
Technical Support Document, October 1991, for the 1991 rule. [Docket A-90-42A.] The EPA is not basing this reclassification determination on consideration of whether the nonattainment area being reclassified does or does not cause any pollution transport. The EPA is presently addressing ozone pollution transport issues
https://www.epa.gov/ceam/technical-support-dflow
What references does EPA have on design flows? In addition to the DFLOW 3.1 User's Guide and EPA's Technical Guidance Manual for Performing Wasteload Allocation. Book IV: Design Conditions, Chapter 1, another useful reference is: EPA. 1991. Technical Support Document for Water Quality-based Toxics Control. EPA/505/2-90-001.
https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=P100EVZ4.TXT
----- Nonconformance Penalties for On-highway Heavy-duty Diesel Engines: Technical Support Document Assessment and Standards Division Office of Transportation and Air Quality U.S. Environmental Protection Agency NOTICE This technical report does not necessarily represent final EPA decisions or positions.
https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=20004FEM.TXT
xvEPA United States Environmental Protection Agency Office Of Water (EN-336) -5- 91-100 Technical Support Document For Water Quality-based Toxics Control RESPONSIVENESS SUMMARY Printed on Recycled Paper
https://www.epa.gov/sites/production/files/2015-11/documents/c15-gbriggs-p1.pdf
Background •Early 1980s –EPA published methods for WET Testing •1984- EPA National Policy for WQBPLs development for Toxic Pollutants •1989- 40 CFR 122.44 Revised for WQBPL •1991- Technical Support Document for Water Quality-based Toxics Control •1994- WET Control Policy Updated
https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=2000LMAE.TXT
----- Technical Support Document for Water Quality-based Toxics Control o U.S. Environmental Protection Agency Region 5, Library (PL-12J) 77 West Jackson Boulevard, 12th Floor Chicago, IL 60604-3590 September, 1985 Office of Water Enforcement and Permits Office of Water Regulations and Standards U.S. Environmental Protection Agency Washington, D.C. 20460
https://www.epa.gov/sites/production/files/2016-03/documents/chesterenvironmentalriskstudyfiguresandreferences6-1995.pdf
TECHNICAL SUPPORT DOCUMENT . EXTERNAL REVIEW DRAf"l' VERSION 1.0 . LIST Of' FIGURES . Hap of the Study Area . Private Wells Nuaber of Private Wells Sensitive Ground Water Areas in Relationship to Private Wells Risk Tr ade-Offs: Disinfection eyproducts VB. Microbial . Grovth . Co~parison . of Risk Levels for Finished Water Supplies:
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