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SHERIDAN, CITY OF

Oregon — Community Water System — PWSID: OR4100811

System Information

PWSIDOR4100811
System NameSHERIDAN, CITY OF
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedMar 12, 1979
Last ReportedDec 23, 2025

Location & Contact

StateOregon
CitySHERIDAN
ZIP Code97378
Address120 SW MILL ST
OrganizationSHERIDAN, CITY OF
Phone503-843-2660

Population & Service

Population Served6,494
Service Connections1,642

Drinking Water Violations (100)

This water system has 100 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
Aug 23, 2025 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Jul 1, 2025 — Lead and Copper Rule MR No No — TT — Resolved Jul 15, 2025 Lead and Copper Rule
Jul 1, 2025 — Lead and Copper Rule MR No No — TT — Resolved Jul 15, 2025 Lead and Copper Rule
Oct 1, 2024 Oct 31, 2024 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2024 Oct 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2024 Surface Water Treatment Rule
Oct 1, 2024 Oct 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2024 Surface Water Treatment Rule
Aug 1, 2024 Aug 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Aug 31, 2024 Surface Water Treatment Rule
Aug 1, 2024 Aug 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Aug 31, 2024 Surface Water Treatment Rule
Aug 1, 2024 Aug 31, 2024 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Aug 31, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2024 — Lead and Copper Rule MR No No — TT — Resolved Oct 25, 2024 Lead and Copper Rule
Jun 1, 2024 Jun 30, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Jun 30, 2024 Surface Water Treatment Rule
Jun 1, 2024 Jun 30, 2024 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Jun 30, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jun 1, 2024 Jun 30, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Jun 30, 2024 Surface Water Treatment Rule
May 1, 2024 May 31, 2024 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2024 May 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2024 Surface Water Treatment Rule
May 1, 2024 May 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2024 Surface Water Treatment Rule
Aug 1, 2023 Aug 31, 2023 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Aug 31, 2023 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Aug 1, 2023 Aug 31, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Aug 31, 2023 Surface Water Treatment Rule
Aug 1, 2023 Aug 31, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Aug 31, 2023 Surface Water Treatment Rule
Jul 1, 2023 — Consumer Confidence Rule Other No No — — — Resolved Jul 18, 2023 Consumer Confidence Rule
Jan 1, 2023 Dec 31, 2023 COLIPHAGE MR No Yes — — — Resolved Dec 31, 2023 Ground Water Rule
Dec 1, 2022 Dec 31, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2022 Surface Water Treatment Rule
Dec 1, 2022 Dec 31, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2022 Surface Water Treatment Rule
Dec 1, 2022 Dec 31, 2022 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2022 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2022 Dec 31, 2022 Revised Total Coliform Rule MON No No — — — Resolved Dec 31, 2022 Revised Total Coliform Rule
Aug 1, 2021 Aug 31, 2021 Revised Total Coliform Rule MON No No — — — Resolved Aug 31, 2021 Revised Total Coliform Rule
Jun 1, 2021 Jun 30, 2021 Revised Total Coliform Rule MON No No — — — Resolved Jun 30, 2021 Revised Total Coliform Rule
Oct 1, 2020 Oct 31, 2020 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2020 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2020 Oct 31, 2020 Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2020 Surface Water Treatment Rule
Oct 1, 2020 Oct 31, 2020 Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2020 Surface Water Treatment Rule
Apr 1, 2020 Apr 30, 2020 Revised Total Coliform Rule MON No No — — — Resolved Apr 30, 2020 Revised Total Coliform Rule
Sep 1, 2019 Sep 30, 2019 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Sep 30, 2019 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Sep 1, 2019 Sep 30, 2019 Surface Water Treatment Rule MR No Yes — — — Resolved Sep 30, 2019 Surface Water Treatment Rule
Sep 1, 2019 Sep 30, 2019 Surface Water Treatment Rule MR No Yes — — — Resolved Sep 30, 2019 Surface Water Treatment Rule
Aug 1, 2018 Aug 31, 2018 Surface Water Treatment Rule MR No Yes — — — Resolved Aug 31, 2018 Surface Water Treatment Rule
Aug 1, 2018 Aug 31, 2018 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Aug 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Aug 1, 2018 Aug 31, 2018 Surface Water Treatment Rule MR No Yes — — — Resolved Aug 31, 2018 Surface Water Treatment Rule
Dec 1, 2015 Dec 31, 2015 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2015 Surface Water Treatment Rule
Dec 1, 2015 Dec 31, 2015 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2015 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2015 Dec 31, 2015 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2015 Surface Water Treatment Rule
Dec 1, 2011 Dec 31, 2011 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2011 Total Coliform Rule
Dec 1, 2011 Dec 31, 2011 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2011 Total Coliform Rule
Jan 1, 2011 Dec 31, 2019 CYANIDE MR No Yes — 0.2 mg/L — Resolved Dec 31, 2019 Inorganic Chemicals
Dec 1, 2009 Dec 31, 2009 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2009 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2009 Dec 31, 2009 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2009 Surface Water Treatment Rule
Dec 1, 2009 Dec 31, 2009 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2009 Surface Water Treatment Rule
Dec 1, 2009 Dec 31, 2009 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2009 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jan 1, 2008 Dec 31, 2008 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2008 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2008 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2008 Volatile 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.

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