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WAPATO WATERWORKS

Washington — Community Water System — PWSID: WA5392800

System Information

PWSIDWA5392800
System NameWAPATO WATERWORKS
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedFeb 7, 1981
Last ReportedDec 11, 2025

Location & Contact

StateWashington
CityWapato
ZIP Code98951
Address205 E Third St
OrganizationWAPATO WATERWORKS
Phone—

Population & Service

Population Served5,255
Service Connections1,506

Drinking Water Violations (145)

This water system has 145 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
Jul 1, 2024 — Consumer Confidence Rule Other No No — — — Resolved Feb 20, 2025 Consumer Confidence Rule
Jan 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Sep 26, 2024 Lead and Copper Rule
Jul 1, 2014 — Consumer Confidence Rule Other No No — — — Resolved Oct 13, 2014 Consumer Confidence Rule
Jan 1, 2008 Dec 31, 2010 Selenium MR No Yes — 0.05 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2010 Arsenic Rule
Jan 1, 2008 Dec 31, 2010 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Mercury MR No Yes — 0.002 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Barium MR No Yes — 2 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Cadmium MR No Yes — 0.005 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Chromium MR No Yes — 0.1 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 CYANIDE MR No Yes — 0.2 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Fluoride MR No Yes — 4.0 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Nickel MR No Yes — — — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Antimony, Total MR No Yes — 0.006 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Beryllium, Total MR No Yes — 0.004 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2005 Dec 31, 2007 Chromium MR No Yes — 0.1 mg/L — Resolved Dec 31, 2007 Inorganic Chemicals
Jan 1, 2005 Dec 31, 2007 Beryllium, Total MR No Yes — 0.004 mg/L — Resolved Dec 31, 2007 Inorganic Chemicals
Jan 1, 2005 Dec 31, 2007 CYANIDE MR No Yes — 0.2 mg/L — Resolved Dec 31, 2007 Inorganic Chemicals
Jan 1, 2005 Dec 31, 2007 Mercury MR No Yes — 0.002 mg/L — Resolved Dec 31, 2007 Inorganic Chemicals
Jan 1, 2005 Dec 31, 2007 Nickel MR No Yes — — — Resolved Dec 31, 2007 Inorganic Chemicals
Jan 1, 2005 Dec 31, 2006 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Selenium MR No Yes — 0.05 mg/L — Resolved Dec 31, 2007 Inorganic Chemicals
Jan 1, 2005 Dec 31, 2006 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Antimony, Total MR No Yes — 0.006 mg/L — Resolved Dec 31, 2007 Inorganic Chemicals
Jan 1, 2005 Dec 31, 2006 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2006 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Fluoride MR No Yes — 4.0 mg/L — Resolved Dec 31, 2007 Inorganic Chemicals
Jan 1, 2005 Dec 31, 2007 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Dec 31, 2007 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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