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NYSSA, CITY OF

Oregon — Community Water System — PWSID: OR4100579

System Information

PWSIDOR4100579
System NameNYSSA, CITY OF
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedMar 12, 1979
Last ReportedDec 23, 2025

Location & Contact

StateOregon
CityNYSSA
ZIP Code97913
Address301 MAIN ST
OrganizationNYSSA, CITY OF
Phone541-372-2264

Population & Service

Population Served3,285
Service Connections1,126

Drinking Water Violations (193)

This water system has 193 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, 2025 Jun 30, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2025 Revised Total Coliform Rule
Jul 1, 2024 — Consumer Confidence Rule Other No No — — — Resolved Jul 17, 2024 Consumer Confidence Rule
May 1, 2024 May 31, 2024 Revised Total Coliform Rule MON No No — — — Resolved May 31, 2024 Revised Total Coliform Rule
Oct 1, 2023 — Consumer Confidence Rule Other No No — — — Resolved Dec 4, 2023 Consumer Confidence Rule
Jul 1, 2023 — Consumer Confidence Rule Other No No — — — Resolved Dec 4, 2023 Consumer Confidence Rule
Oct 1, 2022 Sep 30, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2022 Sep 30, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2019 Jun 30, 2019 Arsenic MR No Yes — 0.010 mg/L — Resolved Jun 30, 2019 Arsenic Rule
Jan 1, 2019 Dec 31, 2019 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2019 Nitrate Rule
Nov 25, 2018 — Public Notice Other No No — — — Resolved Apr 1, 2019 Public Notice Rule and Revised PN Rule
Jul 1, 2018 Sep 30, 2018 Arsenic MCL Yes No .012 MG/L 0.010 mg/L .01 Resolved Sep 30, 2018 Arsenic Rule
Jul 1, 2018 Sep 30, 2018 Arsenic MCL Yes No .012 MG/L 0.010 mg/L .01 Resolved Sep 30, 2018 Arsenic Rule
Jul 1, 2018 Sep 30, 2018 Arsenic MCL Yes No .012 MG/L 0.010 mg/L .01 Resolved Sep 30, 2018 Arsenic Rule
Apr 1, 2018 Jun 30, 2018 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Jun 30, 2018 Arsenic Rule
Apr 1, 2018 Jun 30, 2018 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Jun 30, 2018 Arsenic Rule
Apr 1, 2018 Jun 30, 2018 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Jun 30, 2018 Arsenic Rule
Apr 1, 2018 Jun 30, 2018 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Jun 30, 2018 Arsenic Rule
Jan 1, 2018 Mar 31, 2018 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Mar 31, 2018 Arsenic Rule
Jan 1, 2018 Mar 31, 2018 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Mar 31, 2018 Arsenic Rule
Jan 1, 2018 Mar 31, 2018 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Mar 31, 2018 Arsenic Rule
Jan 1, 2018 Mar 31, 2018 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Mar 31, 2018 Arsenic Rule
Oct 1, 2017 Dec 31, 2017 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Dec 31, 2017 Arsenic Rule
Oct 1, 2017 Dec 31, 2017 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Dec 31, 2017 Arsenic Rule
Oct 1, 2017 Dec 31, 2017 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Dec 31, 2017 Arsenic Rule
Oct 1, 2017 Dec 31, 2017 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Dec 31, 2017 Arsenic Rule
Aug 31, 2017 — Public Notice Other No No — — — Resolved Jul 19, 2019 Public Notice Rule and Revised PN Rule
Aug 31, 2017 — Public Notice Other No No — — — Resolved Jul 19, 2019 Public Notice Rule and Revised PN Rule
Aug 31, 2017 — Public Notice Other No No — — — Resolved Jul 19, 2019 Public Notice Rule and Revised PN Rule
Jul 1, 2017 Sep 30, 2017 Arsenic MCL Yes No .012 MG/L 0.010 mg/L .01 Resolved Sep 30, 2017 Arsenic Rule
Jul 1, 2017 Sep 30, 2017 Arsenic MCL Yes No .012 MG/L 0.010 mg/L .01 Resolved Sep 30, 2017 Arsenic Rule
Jul 1, 2017 Sep 30, 2017 Arsenic MCL Yes No .012 MG/L 0.010 mg/L .01 Resolved Sep 30, 2017 Arsenic Rule
Jul 1, 2017 Sep 30, 2017 Arsenic MCL Yes No .012 MG/L 0.010 mg/L .01 Resolved Sep 30, 2017 Arsenic Rule
Jul 1, 2017 Sep 30, 2017 Arsenic MCL Yes No .012 MG/L 0.010 mg/L .01 Resolved Sep 30, 2017 Arsenic Rule
Jun 3, 2017 — Public Notice Other No No — — — Resolved Jun 28, 2017 Public Notice Rule and Revised PN Rule
Jun 3, 2017 — Public Notice Other No No — — — Resolved Jun 28, 2017 Public Notice Rule and Revised PN Rule
Apr 1, 2017 Jun 30, 2017 Arsenic MCL Yes No .012 MG/L 0.010 mg/L .01 Resolved Jun 30, 2017 Arsenic Rule
Apr 1, 2017 Jun 30, 2017 Arsenic MCL Yes No .012 MG/L 0.010 mg/L .01 Resolved Jun 30, 2017 Arsenic Rule
Apr 1, 2017 Jun 30, 2017 Arsenic MCL Yes No .012 MG/L 0.010 mg/L .01 Resolved Jun 30, 2017 Arsenic Rule
Apr 1, 2017 Jun 30, 2017 Arsenic MCL Yes No .012 MG/L 0.010 mg/L .01 Resolved Jun 30, 2017 Arsenic Rule
Jan 1, 2017 Dec 31, 2017 COLIPHAGE MR No Yes — — — Resolved Dec 31, 2017 Ground Water Rule
Jan 1, 2017 Mar 31, 2017 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Mar 31, 2017 Arsenic Rule
Jan 1, 2017 Mar 31, 2017 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Mar 31, 2017 Arsenic Rule
Jan 1, 2017 Mar 31, 2017 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Mar 31, 2017 Arsenic Rule
Jan 1, 2017 Mar 31, 2017 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Mar 31, 2017 Arsenic Rule
Jan 1, 2017 Mar 31, 2017 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Mar 31, 2017 Arsenic Rule
Oct 1, 2016 Dec 31, 2016 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Dec 31, 2016 Arsenic Rule
Oct 1, 2016 Dec 31, 2016 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Dec 31, 2016 Arsenic Rule
Oct 1, 2016 Dec 31, 2016 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Dec 31, 2016 Arsenic Rule
Oct 1, 2016 Dec 31, 2016 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Dec 31, 2016 Arsenic Rule
Oct 1, 2016 Dec 31, 2016 Arsenic MCL Yes No .013 MG/L 0.010 mg/L .01 Resolved Dec 31, 2016 Arsenic Rule

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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