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NPS OREGON CAVES NATL MON

Oregon — Transient Non-Community — PWSID: OR4191998

System Information

PWSIDOR4191998
System NameNPS OREGON CAVES NATL MON
System TypeTransient Non-Community
Water SourceSurface Water
Activity StatusActive
Owner TypeFederal
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedMar 10, 1980
Last ReportedDec 23, 2025

Location & Contact

StateOregon
CityCAVE JUNCTION
ZIP Code97523
Address19000 CAVES HWY
OrganizationNPS OREGON CAVES NATL MON
Phone541-592-2100

Population & Service

Population Served280
Service Connections1

Drinking Water Violations (110)

This water system has 110 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 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
Feb 1, 2024 Feb 29, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Feb 29, 2024 Surface Water Treatment Rule
Feb 1, 2024 Feb 29, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Feb 29, 2024 Surface Water Treatment Rule
Feb 1, 2024 Feb 29, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Feb 29, 2024 Surface Water Treatment Rule
Nov 1, 2023 Nov 30, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2023 Surface Water Treatment Rule
Nov 1, 2023 Nov 30, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2023 Surface Water Treatment Rule
Nov 1, 2023 Nov 30, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2023 Surface Water Treatment Rule
May 21, 2023 — Public Notice Other No No — — — Resolved Jun 1, 2023 Public Notice Rule and Revised PN Rule
May 21, 2023 — Public Notice Other No No — — — Resolved Jun 1, 2023 Public Notice Rule and Revised PN Rule
Mar 29, 2023 — Public Notice Other No No — — — Resolved Jun 1, 2023 Public Notice Rule and Revised PN Rule
Mar 1, 2023 Mar 31, 2023 Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2023 Surface Water Treatment Rule
Mar 1, 2023 Mar 31, 2023 Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2023 Surface Water Treatment Rule
Mar 1, 2023 Mar 31, 2023 Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2023 Surface Water Treatment Rule
Mar 1, 2023 Mar 31, 2023 Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2023 Surface Water Treatment Rule
Mar 1, 2023 Mar 31, 2023 Revised Total Coliform Rule MCL Yes No — — — Resolved Mar 31, 2023 Revised Total Coliform Rule
Mar 1, 2023 Mar 31, 2023 Revised Total Coliform Rule MCL Yes No — — — Resolved Mar 31, 2023 Revised Total Coliform Rule
Jan 1, 2022 Dec 31, 2022 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2022 Nitrate Rule
Jan 1, 2022 Jan 31, 2022 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 2022 Surface Water Treatment Rule
Jan 1, 2022 Jan 31, 2022 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 2022 Surface Water Treatment Rule
Jan 1, 2022 Jan 31, 2022 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 2022 Surface Water Treatment Rule
Dec 1, 2021 Dec 31, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2021 Surface Water Treatment Rule
Dec 1, 2021 Dec 31, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2021 Surface Water Treatment Rule
Dec 1, 2021 Dec 31, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2021 Surface Water Treatment Rule
Dec 1, 2021 Dec 31, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2021 Surface Water Treatment Rule
Dec 1, 2021 Dec 31, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2021 Surface Water Treatment Rule
Dec 1, 2021 Dec 31, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2021 Surface Water Treatment Rule
Oct 1, 2021 Oct 31, 2021 Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 2021 Surface Water Treatment Rule
Oct 1, 2021 Oct 31, 2021 Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 2021 Surface Water Treatment Rule
Oct 1, 2021 Oct 31, 2021 Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 2021 Surface Water Treatment Rule
Aug 1, 2021 Aug 31, 2021 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2021 Surface Water Treatment Rule
Aug 1, 2021 Aug 31, 2021 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2021 Surface Water Treatment Rule
Aug 1, 2021 Aug 31, 2021 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2021 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 Surface Water Treatment Rule MR No Yes — — — Resolved Jun 30, 2021 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 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
Apr 1, 2021 Apr 30, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2021 Surface Water Treatment Rule
Feb 1, 2020 Feb 29, 2020 Surface Water Treatment Rule MR No Yes — — — Resolved Feb 29, 2020 Surface Water Treatment Rule
Feb 1, 2020 Feb 29, 2020 Surface Water Treatment Rule MR No Yes — — — Resolved Feb 29, 2020 Surface Water Treatment Rule
Feb 1, 2020 Feb 29, 2020 Surface Water Treatment Rule MR No Yes — — — Resolved Feb 29, 2020 Surface Water Treatment Rule
Jul 1, 2019 Jul 31, 2019 Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2019 Surface Water Treatment Rule
Jul 1, 2019 Jul 31, 2019 Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2019 Surface Water Treatment Rule
Jul 1, 2019 Jul 31, 2019 Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2019 Surface Water Treatment Rule
Jan 1, 2019 Jan 31, 2019 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2019 Surface Water Treatment Rule
Jan 1, 2019 Jan 31, 2019 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2019 Surface Water Treatment Rule
Jan 1, 2019 Jan 31, 2019 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2019 Surface Water Treatment Rule
Dec 1, 2018 Dec 31, 2018 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2018 Surface Water Treatment Rule
Dec 1, 2018 Dec 31, 2018 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2018 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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