Unconventional Oil and Gas Extraction Effluent Guidelines Documents

Supplemental Technical Support Document for the Effluent Limitations Guidelines and Standards for Unconventional Oil and Gas Operations (pdf) (1.72 MB, June 2019, 821-R-19-004)
Description of data on unconventional oil and gas operations, collected by EPA following promulgation of the 2016 zero discharge rule, with analysis and conclusion.
Technical Development Document for the Effluent Limitations Guidelines and Standards for the Oil and Gas Extraction Point Source Category (pdf) (3.92 MB, June 2016, 820-R-16-003)
Describes industry processes, pollutants generated, available control & treatment technologies, and the technical basis of the final rule
Pretreatment Standards for the Oil and Gas Extraction Point Source Category - Final Rule; Fact Sheet (pdf) (86.03 KB, June 2016, 821-F-16-001)