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COLTON WATER DISTRICT

Oregon — Community Water System — PWSID: OR4100202

System Information

PWSIDOR4100202
System NameCOLTON WATER DISTRICT
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
CityCOLTON
ZIP Code97017
AddressPO BOX 171
OrganizationCOLTON WATER DISTRICT
Phone503-824-2500

Population & Service

Population Served1,500
Service Connections498

Drinking Water Violations (472)

This water system has 472 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
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 — Consumer Confidence Rule Other No No — — — Resolved Mar 27, 2025 Consumer Confidence Rule
Oct 1, 2024 Oct 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2024 Surface Water Treatment Rule
Apr 1, 2024 Apr 30, 2024 Surface Water Treatment Rule TT Yes No — — — Resolved Apr 30, 2024 Surface Water Treatment Rule
Apr 1, 2024 Apr 30, 2024 Surface Water Treatment Rule TT Yes No — — — Resolved Apr 30, 2024 Surface Water Treatment Rule
Apr 1, 2024 Apr 30, 2024 Surface Water Treatment Rule TT Yes No — — — Resolved Apr 30, 2024 Surface Water Treatment Rule
Jan 1, 2024 Jan 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2024 Surface Water Treatment Rule
Jan 1, 2024 Mar 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 Total Haloacetic Acids (HAA5) MCL Yes No .0807 MG/L 0.060 mg/L .06 Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 Total Haloacetic Acids (HAA5) MCL Yes No .0807 MG/L 0.060 mg/L .06 Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 Total Haloacetic Acids (HAA5) MCL Yes No .0807 MG/L 0.060 mg/L .06 Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Jan 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2024 Surface Water Treatment Rule
Jan 1, 2024 Jan 31, 2024 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2023 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
Jul 1, 2023 Sep 30, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2023 Jun 30, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2023 Jun 30, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2022 Dec 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2022 Dec 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2022 Aug 31, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Aug 31, 2022 Surface Water Treatment Rule
Aug 1, 2022 Aug 31, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Aug 31, 2022 Surface Water Treatment Rule
Aug 1, 2022 Aug 31, 2022 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Aug 31, 2022 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2022 Sep 30, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2022 Sep 30, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2022 Jun 30, 2022 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Jun 30, 2022 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jun 1, 2022 Jun 30, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Jun 30, 2022 Surface Water Treatment Rule
Jun 1, 2022 Jun 30, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Jun 30, 2022 Surface Water Treatment Rule
Mar 1, 2022 Mar 31, 2022 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Mar 31, 2022 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2022 Mar 31, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Mar 31, 2022 Surface Water Treatment Rule
Mar 1, 2022 Mar 31, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Mar 31, 2022 Surface Water Treatment Rule
Jan 1, 2022 Mar 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Mar 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Nov 1, 2021 Nov 30, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2021 Surface Water Treatment Rule
Nov 1, 2021 Nov 30, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2021 Surface Water Treatment Rule
Nov 1, 2021 Nov 30, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2021 Surface Water Treatment Rule
Nov 1, 2021 Nov 30, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2021 Surface Water Treatment Rule
Nov 1, 2021 Nov 30, 2021 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2021 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Nov 1, 2021 Nov 30, 2021 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2021 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Sep 1, 2021 Sep 30, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Sep 30, 2021 Surface Water Treatment Rule
Sep 1, 2021 Sep 30, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Sep 30, 2021 Surface Water Treatment Rule
Sep 1, 2021 Sep 30, 2021 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Sep 30, 2021 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jun 1, 2021 Jun 30, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Jun 30, 2021 Surface Water Treatment Rule
Jun 1, 2021 Jun 30, 2021 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Jun 30, 2021 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jun 1, 2021 Jun 30, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Jun 30, 2021 Surface Water Treatment Rule
Apr 1, 2021 Apr 30, 2021 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2021 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2021 Apr 30, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2021 Surface Water Treatment Rule
Apr 1, 2021 Apr 30, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2021 Surface Water Treatment Rule
Mar 1, 2021 Mar 31, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Mar 31, 2021 Surface Water Treatment 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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