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Supplemental Technical Support Document for the Effluent Limitations Guidelines and Standards for Unconventional Oil and Gas Operations (PDF)(86 pp, 2 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.
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Technical Development Document for the Effluent Limitations Guidelines and Standards for the Oil and Gas Extraction Point Source Category (PDF)(197 pp, 4 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)(2 pp, 88 K, June 2016, 821-F-16-001)