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Washoe Tribe Stewart

Nevada — Community Water System — PWSID: 093200359

System Information

PWSID093200359
System NameWashoe Tribe Stewart
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeNative American
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedAug 2, 1994
Last ReportedDec 31, 2025

Location & Contact

StateNevada
CityGardnerville
ZIP Code89410
Address919 Highway 395 South
OrganizationWashoe Tribal Council
Phone7752658600

Population & Service

Population Served150
Service Connections53

Drinking Water Violations (148)

This water system has 148 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Jan 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Jan 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Jan 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 20, 2022 — Groundwater Rule TT Yes No — — — Unaddressed — Ground Water Rule
Dec 1, 2019 Dec 31, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2019 Revised Total Coliform Rule
Dec 1, 2019 — Public Notice Other No No — — — Resolved Jun 30, 2020 Public Notice Rule and Revised PN Rule
Apr 1, 2016 — Revised Total Coliform Rule Other No No — — — Resolved Jun 20, 2018 Revised Total Coliform Rule
Oct 1, 2013 — Stage 2 Disinfectants and Disinfection Byproducts Rule MR No Yes — — — Resolved Sep 14, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Mar 1, 2013 Mar 31, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2013 Total Coliform Rule
Jul 1, 2012 — Consumer Confidence Rule Other No No — — — Resolved Jun 30, 2013 Consumer Confidence Rule
Jan 1, 2011 Dec 31, 2013 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011 Dec 31, 2013 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2010 Dec 31, 2010 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2010 Nitrate Rule
Jan 1, 2005 Dec 31, 2005 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2005 Nitrate Rule
Jan 1, 2004 Dec 31, 2004 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2004 Nitrate Rule
May 1, 2003 May 31, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2003 Total Coliform Rule
Sep 1, 2002 Sep 30, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2002 Total Coliform Rule
Jul 1, 2002 — Consumer Confidence Rule Other No No — — — Resolved Mar 27, 2007 Consumer Confidence Rule
Mar 1, 2002 Mar 31, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2002 Total Coliform Rule
Dec 1, 2001 Dec 31, 2001 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2001 Total Coliform Rule
Sep 1, 2001 Sep 30, 2001 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2001 Total Coliform Rule
Jun 1, 2001 Jun 30, 2001 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2001 Total Coliform Rule
Apr 1, 2001 Apr 30, 2001 Coliform (TCR) MR No No — 5% of samples — Resolved Apr 30, 2001 Total Coliform Rule
Mar 1, 2001 Mar 31, 2001 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2001 Total Coliform Rule
Jan 1, 2001 Dec 31, 2001 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2001 Synthetic Organic Chemicals
Jan 1, 2001 Dec 31, 2001 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Dec 31, 2001 Synthetic Organic Chemicals
Jan 1, 2001 Dec 31, 2001 Chlordane MR No Yes — 0.002 mg/L — Resolved Dec 31, 2001 Synthetic Organic Chemicals
Jan 1, 2001 Dec 31, 2001 Endothall MR No Yes — 0.1 mg/L — Resolved Dec 31, 2001 Synthetic Organic Chemicals
Jan 1, 2001 Dec 31, 2001 Toxaphene MR No Yes — 0.003 mg/L — Resolved Dec 31, 2001 Synthetic Organic Chemicals
Jan 1, 2001 Dec 31, 2001 Asbestos MR No Yes — 7 MFL — Resolved Dec 31, 2001 Inorganic Chemicals

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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