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Contact EPA Pacific Southwest Water Division

Pacific Southwest, Region 9

Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations

Monitoring, Assessment and TMDLs

Monitoring, Assessment and TMDLs Quick Finder
Monitoring & TMDLs Home 303(d) lists EPA-established TMDLs EPA-lead TMDLs: Completed Monitoring Arizona TMDLs California TMDLs Hawai'i TMDLs Nevada TMDLs Pacific Islands TMDLs TMDL Contacts
Photo of Lake Tahoe, Nevada/California
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 Exiting EPA (disclaimer) 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 August 4, 2014, EPA partially approved and partially disapproved Nevada’s 2012 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 one water EPA determined to be impaired due to mercury in fish tissue. EPA’s action added Topaz Lake for mercury in fish tissue.

Following a public comment period on EPA’s notice to add Topaz Lake for fish tissue, on October 23, 2014, EPA transmitted to the state the decision to include the water body-pollutant combination and a responsiveness summary addressing how public comments were considered in the final EPA decision. Provided below are the August 4, 2013 partial approval / partial disapproval letter and the October 23, 2014 letter and enclosure presenting the final decision and responsiveness summary (see EPA documents). The State’s 303(d) lists are available at the link under State Documents, below.

Contact Information

David Guiliano (guiliano.dave@epa.gov)
U.S. Environmental Protection Agency
75 Hawthorne St, WTR-2-1
San Francisco, CA 94105

EPA Documents

State Documents

Nevada’s 2012 Section 303(d) list of waters requiring a TMDL is available in Attachment 4 of Nevada’s 2012 Water Quality Integrated Report, available at the Nevada Division of Environmental Protection web page. Exiting EPA (disclaimer)


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. Exiting EPA (disclaimer)

  Lake Tahoe TMDL

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