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Thermal Discharges
  
 
National Summary
A common water quality standard that must be met when discharging wastewater into surface waters is the temperature of the discharged effluent. The NPDES permit program generally requires monitoring the temperature and flow of the discharged water, both as an effluent characteristic during the application process and as a temperature limitation under the permit conditions. Thermal pollution is defined as heated water discharges with the potential to alter the growth and existence of aquatic organisms.
  
 
 
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Applies to News & White Papers
TypeTitleDateState
Final Regulations40 CFR 122 and 125 - National Pollutant Discharge Elimination System--Suspension of Regulations Establishing Requirements for Cooling Water Intake Structures at Phase II Existing Facilities07/09/2007National
NoticesAgency Information Collection Activities; Cooling Water Intake Structure Phase II Existing Facilities (Renewal)05/29/2007National
NoticesAgency Information Collection Activities; Information Collection Request for Cooling Water Intake Structure Phase II Existing Facilities03/01/2007National
NoticesAgency Information Collection Activities; Information Collection Request for Cooling Water Intake Structures?New Facility 03/02/2005National
NoticesAgency Information Collection Activities; Willingness to Pay Survey: Phase III Cooling Water Intake Structures03/24/2005National
Agency NewsEPA Administrator Signs Proposed Regulation Dealing with Cooling Water Intake Structures03/07/2002National
Guidance DocumentsEPA Region 10 Guidance for Pacific Northwest State and Tribal Temperature Water Quality Standards National
Agency NewsEPA Sets Final Standards for New Industrial Facilities to Prevent Fish Kills from Cooling Water11/12/2001National
Guidance DocumentsEstablishing TMDLs in Light of the Decision by the U.S. Court of Appeals for the D.C. Circuit in Friends of the Earth v. EPA National
E-lert ArticleHigh Court to Look at Cooling Water07/03/2008National
FormsIndustry Short Technical Questionnaire: Phase II Cooling Water Intake Structures National
NoticesInformation Collection Request for Cooling Water Intake Structures New Facility Final Rule (Renewal)03/28/2008National
NoticesNotice of Availability of Draft NPDES General Permits for Noncontact Cooling Water Discharges in Massachusetts and New Hampshire07/06/2007National
Guidance DocumentsNPDES Permit for the Brayton Point Station  National
Regulatory AnalysisThermal Discharges National