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Regulatory Development and Retrospective Review Tracker

Effluent Guidelines and Standards for Oil and Gas Extraction Point Source Category

a.k.a. ELG for Oil and Gas Extraction

RIN: 2040-AF35 (What's this?)

Docket No.: EPA-HQ-OW-2011-0334 (What's this?)

Current Phase: Proposal (What's this?)

Unconventional oil and gas extraction wastewater can be generated in large quantities and contain constituents that are potentially harmful to human health and the environment. Wastewater from UOG wells often contains high concentrations of salt content, also called total dissolved solids or TDS.

The wastewater can also contain various organic chemicals, inorganic chemicals, metals, and naturally-occurring radioactive materials (also referred to as technologically enhanced naturally occurring radioactive material or TENORM). This potentially harmful wastewater creates a need for appropriate wastewater management infrastructure and practices. On April 7, 2015 the EPA proposed technology-based pretreatment standards under the Clean Water Act for discharges of pollutants into publicly owned treatment works from existing and new unconventional oil and natural gas extraction facilities. The proposed rule would better protect public health, the environment, and the operational integrity of POTWs by establishing pretreatment standards that would prevent the discharge of pollutants in wastewater from onshore UOG extraction facilities to POTWs. This proposed rule would fill a gap in existing federal wastewater regulations to ensure that the current practice of not sending wastewater discharges from this sector to POTWs continues into the future.

NPRM: Sent to OMB for Regulatory Review11/19/2014
NPRM: Received by OMB11/19/2014
NPRM: Regulatory Review Concluded03/30/2015
NPRM: Comment Period Open04/07/2015
NPRM: Published in FR04/07/2015
NPRM: Public Meeting05/29/2015
NPRM: Comment Period Extension Published in FR06/02/2015
NPRM: Comment Period Closed06/08/2015
NPRM: Comment Period Closed with Extension07/17/2015
Final Rule: Published in FR08/2016 (projected)

Potential Effects

Of the potential effects described in Reg DaRRT, none are anticipated at this time.

Participate / Learn More Regulatory Review

Some of EPA's rulemakings undergo regulatory review (What's this?), as prescribed by Executive Order 12866 and coordinated by the Office of Management and Budget (OMB). The following list describes which of this rulemaking's stages have completed review and published in the Federal Register, if any, and provides links to the review documents where available. Consult the "Timeline" section of this Web page for the dates of each review.

  • NPRM - No Information Available.
Citations & Authorities

Federal Register Citations

Code of Federal Regulations (CFR) Citation
40 CFR 435

Legal Authority
33 U.S.C. 1251 et seq Clean Water Act


This site provides summaries of priority rulemakings and priority retrospective reviews of existing regulations. We update most of the site at the beginning of each month, though some data is updated more frequently if it is time sensitive. The information on this site is not intended to and does not commit EPA to specific conclusions or actions. For example, after further analysis, EPA may decide the effects of a rule would be different or it may decide to terminate a rulemaking.

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