Monitoring, Assessment and TMDLs

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Lake Tahoe, Nevada/California

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Nevada Water Quality

Nevada Division of Environmental Protection is responsible for conducting monitoring, assessment, reporting under CWA Sections 303(d) and 305(b), and TMDL development for the State of Nevada. More information about Nevada's programs can be found at Nevada's Division of Environmental Protection's Bureau of Water Quality Planning page or through EPA and Nevada staff.

EPA and Nevada Water Quality Contacts

Water Quality Assessment TMDL Summary Information for Nevada

Nevada's Integrated Report

On February 1, 2013, EPA partially approved and partially disapproved Nevada’s 2008-2010 303(d) list of waters requiring a Total Maximum Daily Load (TMDL). EPA approved waters Nevada identified as requiring a TMDL, and disapproved the omission of 19 waters EPA determined to be impaired due to mercury in fish tissue. EPA’s action added the 19 identified water body – pollutant combinations.

Following a public comment period on EPA’s notice to add waters, on April 18, 2013, EPA transmitted to the state the final list of added water body – pollutant combinations and a responsiveness summary addressing how public comments were considered in the final EPA decision. Provided below are the February 2013 partial approval / partial disapproval letter and the April 2013 letter and enclosure presenting the final list of added waters and responsiveness summary (see EPA documents). The State’s 303(d) lists are available at the link under State Documents, below.

Contact Information
Susan Keydel (keydel.susan@epa.gov)
U.S. Environmental Protection Agency
75 Hawthorne St, WTR-2
San Francisco, CA 94105
Tel. (415) 972-3106

EPA Documents

EPA’s February 2013 partial approval / partial disapproval letter (PDF) (2 pp, 100K) and enclosure (PDF) (13 pp, 400K), with the added waters
EPA’s Public Notice for public comment period (PDF) (1 pp, 50K) Comments due by March 11, 2013
EPA’s April 2013 letter conveying the final list and response to comments (PDF) (9 pp, 446K)

State Documents

Nevada’s 2008-10 Section 303(d) list of waters requiring a TMDL is available in Attachment 4 of Nevada’s 2008-10 Water Quality Integrated Report, available at the Nevada Division of Environmental Protection web page.

TMDLs in Nevada

Information on the status of TMDLs being developed or previously developed by Nevada Division of Environmental Protection can be found at NDEP's Total Maximum Daily Loads page.

Lake Tahoe TMDL