Vehicle Safety
Recalls Search 320,000+ NHTSA safety recalls Complaints 2.1M+ consumer safety complaints TSBs 4.7M technical service bulletins VIN Lookup Decode any vehicle VIN instantly OBD Codes 12,000+ diagnostic trouble codes Fuel Economy EPA MPG data for all vehicles Statistics Recall trends & safety analysis
Consumer Safety
Product Safety 9,700+ CPSC product recalls Food Safety 28,600+ FDA food recalls Pet Safety 1.3M FDA animal adverse events Drug Safety 17,500+ FDA drug recalls Device Safety 38,400+ FDA device recalls Workplace Safety 102,900+ OSHA injury reports
Infrastructure
Bridge Safety 624,000 bridge inspections Aviation Safety 30,000+ NTSB aviation events Dam Safety 92,600 dam safety records Water Safety 433,000+ public water systems Railroad Safety 438,000+ rail crossings Pipeline Safety 8,800+ pipeline incidents
Public Health
Nursing Homes 14,700 CMS rated facilities Environmental 80,000+ hazardous sites & releases

Mattawa City of

Washington — Community Water System — PWSID: WA5352000

System Information

PWSIDWA5352000
System NameMattawa City of
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerYes
First ReportedFeb 7, 1981
Last ReportedDec 11, 2025

Location & Contact

StateWashington
CityMattawa
ZIP Code99349
Address521 E Government Rd
OrganizationMattawa City of
Phone—

Population & Service

Population Served5,015
Service Connections1,000

Drinking Water Violations (223)

This water system has 223 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
Jun 1, 2024 Jun 30, 2024 Revised Total Coliform Rule MCL Yes No — — — Resolved Jun 30, 2024 Revised Total Coliform Rule
Jul 1, 2023 — Consumer Confidence Rule Other No No — — — Resolved Sep 20, 2023 Consumer Confidence Rule
Jul 1, 2016 — Consumer Confidence Rule Other No No — — — Resolved Dec 1, 2016 Consumer Confidence Rule
Jan 1, 2014 Dec 31, 2014 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2014 Nitrate Rule
Jan 1, 2014 Dec 31, 2016 Beryllium, Total MR No Yes — 0.004 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2019 Styrene MR No Yes — 0.1 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Antimony, Total MR No Yes — 0.006 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2019 Benzene MR No Yes — 0.005 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 Trichloroethylene MR No Yes — 0.005 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Cadmium MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2019 Tetrachloroethylene MR No Yes — 0.005 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 Vinyl chloride MR No Yes — 0.002 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 Ethylbenzene MR No Yes — 0.7 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 Toluene MR No Yes — 1 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 Carbon tetrachloride MR No Yes — 0.005 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2016 Arsenic Rule
Jan 1, 2014 Dec 31, 2016 Nickel MR No Yes — — — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 Mercury MR No Yes — 0.002 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 Chromium MR No Yes — 0.1 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 Selenium MR No Yes — 0.05 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2016 Nitrate Rule
Jan 1, 2014 Dec 31, 2016 Barium MR No Yes — 2 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 Fluoride MR No Yes — 4.0 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2016 CYANIDE MR No Yes — 0.2 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
Jan 1, 2014 Dec 31, 2019 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 CHLOROBENZENE MR No Yes — 0.1 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Archived Dec 31, 2019 Volatile Organic Chemicals
Jul 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved Nov 3, 2011 Consumer Confidence Rule
Jan 1, 2011 Dec 31, 2011 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2011 Nitrate Rule
Jan 1, 2011 — Lead and Copper Rule MR No No — TT — Resolved Sep 3, 2014 Lead and Copper Rule
Jan 1, 2010 — Lead and Copper Rule MR No No — TT — Resolved Sep 3, 2014 Lead and Copper Rule
Jan 1, 2008 Dec 31, 2010 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 LASSO MR No Yes — — — Resolved Dec 31, 2010 Synthetic Organic 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 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 2,4,5-TP MR No Yes — 0.05 mg/L — Archived Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Chlordane MR No Yes — 0.002 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2010 Synthetic Organic 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.

Browse All Water Systems Water Safety Stats Water Safety Home
Browse All Water Systems Water Systems in Washington