Science & Technology
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eGRID2020 Corrections and Revisions
Describes corrections and revisions for updated eGRID data
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Notice of Data Availability - Preliminary Interstate Ozone Transport Modeling Data for the 2015 Ozone NAAQS
EPA is providing an opportunity to review ozone transport modeling data for the 2015 ozone NAAQS
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Findings of Failure to Submit a Clean Air Act Section 110 State Implementation Plan for Interstate Transport for the 2015 Ozone National Ambient Air Quality Standards (NAAQS)
EPA is finding that seven states failed to submit complete interstate transport State Implementation Plans or SIPs for the 2015 8-hour ozone National Ambient Air Quality Standards
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Rescission of the Finding of Failure to Submit a Clean Air Act Section 110 State Implementation Plan for Interstate Transport for the 2015 Ozone National Ambient Air Quality Standards (NAAQS)
EPA is finding that seven states failed to submit complete interstate transport State Implementation Plans or SIPs for the 2015 8-hour ozone National Ambient Air Quality Standards
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CHP Benefits
Learn about CHP benefits, including increased efficiency, reduced emissions of greenhouse gases and other air pollutants, energy cost savings, and enhanced energy reliability.
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CHP Policies and Incentives
Access state and federal CHP policies and incentives through dCHPP (CHP policies and incentives database)
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Data Use and Citation
Citation for CASTNET data use in publications
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CHP Energy and Emissions Savings Calculator
Download the CHP Emissions Calculator, a tool that calculates the difference between the anticipated carbon dioxide, methane, nitrous oxide, sulfur dioxide, and nitrogen oxide emissions from a CHP system to those of a separate heat and power system.
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Environmental Protection in Indian Country
EPA's efforts to protect human health and the environment of federally recognized Indian tribes by supporting implementation of federal environmental laws consistent with the federal trust responsibility, and the government-to-government relationship.
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Solar Cells - Renewable Energy Fact Sheet
This fact sheet provides information on photovoltaic solar cells, advantages and disadvantages of this system and its applications at wastewater treatment plants.
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Wind Turbines - Renewable Energy Fact Sheet
This fact sheet provides information on different configurations of wind turbines and their use as an auxiliary and supplemental power sources for wastewater treatment plants.
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Side Stream Nutrient Removal - Wastewater Technology Fact Sheet
This factsheet provides information on side stream nutrient removal using single reactor for high activity ammonia removal over nitrite (SHARON) process and annamox process.
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Pipe Bursting - Water Technology Fact Sheet
This fact sheet provides an overview of the method known as pipe bursting where existing pipe is opened and forced outwards by a bursting tool.
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Requester Withdrawal of RFR 15003A
Withdrawal by Requester of RFR 15003A; issued 12/16/2019
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EPA Response to RFC 16002; issued 05/24/2019
The response to the request for correction for ethylene dichloride (RFC #16002) issued on Friday, May 24th
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RFR 18001A – EPA Response
EPA’s response to RFR 18001A concerning Anthraquinone communicated June 10, 2020.
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15003A - Request for Reconsideration
Request for Reconsideration 15003A; letter dated 12/23/15; received 12/23/15
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EPA Response to RFC 23001- N-Methylpyrrolidone (NMP)
This page contains the Agency's response to RFC 23001- Information on the Toxic Substances Control Act (TSCA) Risk Evaluation for N-Methylpyrrolidone (NMP)
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EPA Response to RFR 14001A; issued 02/26/2016
EPA Response to RFR 14001A; issued 02/26/2016
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Request for Correction 15003 - Information Quality Act request for Correction of the TSCA Work Plan
This RFC concerns the Information Quality Act request for correction of the TSCA Work Plan for Chemical Assessments: 20154 Update and the TSCA Work Plan Chemicals: Methods Document (February 2012) regarding assessment of phthalic anhydride