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Document Title:

Oil Field Produced Water Discharges into Wetlands in Wyoming.

AUTHOR(S):
Pedro Ramirez Jr


REPORT NUMBER:
R6/718C/02
PAGES:
1 - 15

PUBLICATION DATE: August 2002

ABSTRACT:
Department of Environmental Quality's (WDEQ) National Pollutant Discharge Elimination System (NPDES) permit program. Wyoming is one of a few states that allows the discharge of oil field produced water into surface waters for beneficial use by livestock and wildlife. Sixty-six wetland sites receiving oil field produced water discharges in Wyoming were surveyed to determine the percentage of discharges in compliance with NPDES permit requirements and to determine the amount of chronic oil releases associated with these discharges. Separator pits were also surveyed to determine wildlife mortality and to assess implementation of wildlife deterrents. Although limited in scope, this survey of oil field produced water discharges in Wyoming shows that: inefficient oilwater separation is causing a chronic discharge of oil into some of the wetlands receiving oil field produced water; and, over half (53 percent) of the sites surveyed used only flagging to deter migratory birds from oil pits used to skim oil from produced water. Additionally, approximately 85 percent of the oil field produced water discharges surveyed went into ephemeral streams. Project #: 97-6- 6F34

PUBLISHED BY:
U.S. Fish and Wildlife Service

DOCUMENT LINK:
http://www.fws.gov/mountain-prairie/contaminants/papers/r6718c02.pdf, 2 MB

ADDITIONAL LINKS:

U.S. Fish and Wildlife Service - Mountain-Prairie Region, Contaminants Program

Last updated: February 13, 2013