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LAFAYETTE, CITY OF

Oregon — Community Water System — PWSID: OR4100452

System Information

PWSIDOR4100452
System NameLAFAYETTE, CITY OF
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedMar 12, 1979
Last ReportedDec 23, 2025

Location & Contact

StateOregon
CityLAFAYETTE
ZIP Code97127
AddressPO BOX 55
OrganizationLAFAYETTE, CITY OF
Phone503-864-2451

Population & Service

Population Served4,423
Service Connections1,499

Drinking Water Violations (265)

This water system has 265 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 Groundwater Rule MR No Yes — — — Archived Jun 30, 2025 Ground Water Rule
Jan 1, 2025 — Lead and Copper Rule MR No No — TT — Resolved Aug 4, 2025 Lead and Copper Rule
Oct 1, 2023 Oct 31, 2023 Groundwater Rule MR No Yes — — — Resolved Oct 31, 2023 Ground Water Rule
Jul 1, 2023 — Lead and Copper Rule MR No No — TT — Resolved Dec 6, 2023 Lead and Copper Rule
Jul 1, 2023 — Consumer Confidence Rule Other No No — — — Resolved Jul 3, 2023 Consumer Confidence Rule
Jun 1, 2023 Jun 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2023 Revised Total Coliform Rule
Aug 1, 2022 Aug 31, 2022 Groundwater Rule MR No Yes — — — Resolved Aug 31, 2022 Ground Water Rule
Jul 1, 2022 — Lead and Copper Rule MR No No — TT — Resolved Oct 3, 2022 Lead and Copper Rule
Apr 1, 2022 Apr 30, 2022 Groundwater Rule MR No Yes — — — Resolved Apr 30, 2022 Ground Water Rule
Jan 1, 2022 — Lead and Copper Rule MR No No — TT — Resolved Jun 6, 2022 Lead and Copper Rule
Apr 1, 2019 Jun 30, 2019 TTHM MCL Yes No .082 MG/L 0.080 mg/L .08 Resolved Jun 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2019 Jun 30, 2019 TTHM MCL Yes No .082 MG/L 0.080 mg/L .08 Resolved Jun 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2019 Jun 30, 2019 TTHM MCL Yes No .082 MG/L 0.080 mg/L .08 Resolved Jun 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2019 Mar 31, 2019 TTHM MCL Yes No .085 MG/L 0.080 mg/L .08 Resolved Mar 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2019 Mar 31, 2019 TTHM MCL Yes No .085 MG/L 0.080 mg/L .08 Resolved Mar 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2019 Mar 31, 2019 TTHM MCL Yes No .085 MG/L 0.080 mg/L .08 Resolved Mar 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2018 Dec 31, 2018 TTHM MCL Yes No .081 MG/L 0.080 mg/L .08 Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2018 Dec 31, 2018 TTHM MCL Yes No .081 MG/L 0.080 mg/L .08 Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2018 Dec 31, 2018 TTHM MCL Yes No .081 MG/L 0.080 mg/L .08 Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2018 Jun 30, 2018 Xylenes, Total MR No Yes — 10 mg/L — Resolved Jun 30, 2018 Volatile Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Jun 30, 2018 Volatile Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2018 Jun 30, 2018 Toluene MR No Yes — 1 mg/L — Resolved Jun 30, 2018 Volatile Organic Chemicals
Apr 1, 2018 Jun 30, 2018 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2018 Feb 28, 2018 Revised Total Coliform Rule MON No Yes — — — Resolved Feb 28, 2018 Revised Total Coliform Rule
Sep 1, 2017 Sep 30, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2017 Revised Total Coliform Rule
Jul 1, 2017 Sep 30, 2017 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2017 Sep 30, 2017 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2017 Jun 30, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2017 Revised Total Coliform Rule
Mar 1, 2017 Mar 31, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Mar 31, 2017 Revised Total Coliform Rule
Oct 1, 2016 — Lead and Copper Rule MR No No — TT — Resolved Aug 14, 2018 Lead and Copper Rule
Aug 1, 2016 Aug 31, 2016 Groundwater Rule MR No Yes — — — Resolved Aug 31, 2016 Ground Water Rule
Jul 1, 2016 Jul 31, 2016 Revised Total Coliform Rule MON No Yes — — — Archived Jul 31, 2016 Revised Total Coliform Rule
Jun 1, 2016 Jun 30, 2016 Revised Total Coliform Rule MON No Yes — — — Archived Jun 30, 2016 Revised Total Coliform Rule
Apr 1, 2016 Jun 30, 2016 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2016 Dec 31, 2016 COLIPHAGE MR No Yes — — — Resolved Dec 31, 2016 Ground Water Rule
Nov 21, 2015 — Public Notice Other No No — — — Resolved Dec 31, 2015 Public Notice Rule and Revised PN Rule
Nov 21, 2015 — Public Notice Other No No — — — Resolved Dec 31, 2015 Public Notice Rule and Revised PN Rule
Oct 1, 2015 Dec 31, 2015 TTHM MCL Yes No .083 MG/L 0.080 mg/L .08 Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 TTHM MCL Yes No .088 MG/L 0.080 mg/L .08 Archived Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 TTHM MCL Yes No .088 MG/L 0.080 mg/L .08 Archived Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 TTHM MCL Yes No .083 MG/L 0.080 mg/L .08 Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 TTHM MCL Yes No .083 MG/L 0.080 mg/L .08 Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts 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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