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CURLEW CONSERVATION CENTER

Washington — Community Water System — PWSID: WA53FS165

System Information

PWSIDWA53FS165
System NameCURLEW CONSERVATION CENTER
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeFederal
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedFeb 7, 1981
Last ReportedDec 11, 2025

Location & Contact

StateWashington
CityRepublic
ZIP Code99166
AddressPO Box 795
OrganizationCURLEW CONSERVATION CENTER
Phone—

Population & Service

Population Served349
Service Connections106

Drinking Water Violations (165)

This water system has 165 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, 2025 Jul 31, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2025 Revised Total Coliform Rule
Jan 1, 2023 Mar 31, 2023 Nitrate MR No Yes — 10 mg/L — Resolved Mar 31, 2023 Nitrate Rule
Oct 1, 2022 Dec 31, 2022 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2022 Nitrate Rule
Jan 1, 2022 Mar 31, 2022 Nitrate MR No Yes — 10 mg/L — Resolved Mar 31, 2022 Nitrate Rule
Oct 1, 2021 Dec 31, 2021 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2021 Nitrate Rule
Jul 1, 2021 Sep 30, 2021 Nitrate MR No Yes — 10 mg/L — Resolved Sep 30, 2021 Nitrate Rule
Apr 1, 2021 Jun 30, 2021 Nitrate MR No Yes — 10 mg/L — Resolved Jun 30, 2021 Nitrate Rule
Oct 1, 2020 Dec 31, 2020 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2020 Nitrate Rule
Jan 1, 2020 — Lead and Copper Rule MR No No — TT — Resolved Jul 17, 2023 Lead and Copper Rule
Jul 1, 2019 — Consumer Confidence Rule Other No No — — — Resolved May 22, 2023 Consumer Confidence Rule
Jan 1, 2019 Dec 31, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2019 Dec 31, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Dec 31, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Dec 31, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Jan 31, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Jan 31, 2017 Revised Total Coliform Rule
Jan 1, 2017 Dec 31, 2017 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2017 Nitrate Rule
Jul 1, 2015 — Consumer Confidence Rule Other No No — — — Resolved Sep 9, 2015 Consumer Confidence Rule
Jan 1, 2014 Dec 31, 2019 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2022 Dinoseb MR No Yes — 0.007 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Jan 1, 2014 Dec 31, 2019 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2022 Picloram MR No Yes — 0.5 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Jan 1, 2014 Dec 31, 2019 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2022 Dalapon MR No Yes — 0.2 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Jan 1, 2014 Dec 31, 2019 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2022 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Jan 1, 2014 Dec 31, 2019 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2019 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2022 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Jan 1, 2014 Dec 31, 2019 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jul 1, 2010 — Consumer Confidence Rule Other No No — — — Resolved Nov 3, 2010 Consumer Confidence Rule
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 Antimony, Total MR No Yes — 0.006 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 CYANIDE MR No Yes — 0.2 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
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 Beryllium, Total MR No Yes — 0.004 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Dec 31, 2010 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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