USEPA Announces Schedule to Develop Natural Gas Wastewater Standards for Shale Gas and Coal Bed Methane under Clean Water Act

This post was written by Jennifer Smokelin.

The U.S. Environmental Protection Agency (USEPA) announced today that it will propose a rule for wastewater from coal bed methane in 2013 and a proposed rule for shale gas wastewater in 2014. The announcement is part of the effluent guidelines program (Clean Water Act § 304(m)), which sets national standards for industrial wastewater discharges based on best available technologies that are economically achievable.

To ensure that these wastewaters receive proper treatment and can be properly handled by treatment plants, USEPA will gather data, consult with stakeholders, including ongoing consultation with industry, and solicit public comment on a proposed rule for coal bed methane and for shale gas. The time frame for coal bed methane is shorter because USEPA feels it already has a leg up on data necessary for the coal bed rule whereas there is more information to gather with regard to shale gas wastewater.

A Few More Details

Hydraulic fracturing is a method of releasing natural gas from highly impermeable rock formations by injecting large amounts of fracturing fluids at high pressures to create a network of fissures in the rock formations and provide the natural gas a pathway to travel to the well for extraction. Geologic pressure within the shale formation forces these fracturing fluids back to the surface, where they are referred to as “produced water” or shale gas wastewater. Based on a review of available data, USEPA is initiating a rulemaking to control wastewater produced by natural gas extraction from underground shale formations. Under this proposed rulemaking, EPA will consider standards based on demonstrated, economically achievable technologies, for shale gas wastewater that must be met before going to a treatment facility.

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