NPS OREGON CAVES NATL MON
Oregon — Transient Non-Community — PWSID: OR4191998
System Information
| PWSID | OR4191998 |
| System Name | NPS OREGON CAVES NATL MON |
| System Type | Transient Non-Community |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Federal |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 10, 1980 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | Oregon |
| City | CAVE JUNCTION |
| ZIP Code | 97523 |
| Address | 19000 CAVES HWY |
| Organization | NPS OREGON CAVES NATL MON |
| Phone | 541-592-2100 |
Population & Service
| Population Served | 280 |
| Service Connections | 1 |
Drinking Water Violations (117)
This water system has 117 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, 2025 | Oct 31, 2025 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2025 | — | |
| Oct 1, 2025 | Oct 31, 2025 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2025 | — | |
| Oct 1, 2025 | Oct 31, 2025 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2025 | — | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2024 | — | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2024 | — | |
| Feb 1, 2024 | Feb 29, 2024 | MR | No | Yes | — | — | — | Resolved | Feb 29, 2024 | — | |
| Feb 1, 2024 | Feb 29, 2024 | MR | No | Yes | — | — | — | Resolved | Feb 29, 2024 | — | |
| Feb 1, 2024 | Feb 29, 2024 | MR | No | Yes | — | — | — | Resolved | Feb 29, 2024 | — | |
| Nov 1, 2023 | Nov 30, 2023 | MR | No | Yes | — | — | — | Resolved | Nov 30, 2023 | — | |
| Nov 1, 2023 | Nov 30, 2023 | MR | No | Yes | — | — | — | Resolved | Nov 30, 2023 | — | |
| Nov 1, 2023 | Nov 30, 2023 | MR | No | Yes | — | — | — | Resolved | Nov 30, 2023 | — | |
| May 21, 2023 | — | Other | No | No | — | — | — | Resolved | Jun 1, 2023 | — | |
| May 21, 2023 | — | Other | No | No | — | — | — | Resolved | Jun 1, 2023 | — | |
| Mar 29, 2023 | — | Other | No | No | — | — | — | Resolved | Jun 1, 2023 | — | |
| Mar 1, 2023 | Mar 31, 2023 | TT | Yes | No | — | — | — | Resolved | Mar 31, 2023 | — | |
| Mar 1, 2023 | Mar 31, 2023 | TT | Yes | No | — | — | — | Resolved | Mar 31, 2023 | — | |
| Mar 1, 2023 | Mar 31, 2023 | TT | Yes | No | — | — | — | Resolved | Mar 31, 2023 | — | |
| Mar 1, 2023 | Mar 31, 2023 | TT | Yes | No | — | — | — | Resolved | Mar 31, 2023 | — | |
| Mar 1, 2023 | Mar 31, 2023 | MCL | Yes | No | — | — | — | Resolved | Mar 31, 2023 | — | |
| Mar 1, 2023 | Mar 31, 2023 | MCL | Yes | No | — | — | — | Resolved | Mar 31, 2023 | — | |
| Jan 1, 2022 | Jan 31, 2022 | TT | Yes | No | — | — | — | Resolved | Jan 31, 2022 | — | |
| Jan 1, 2022 | Dec 31, 2022 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2022 | — | |
| Jan 1, 2022 | Jan 31, 2022 | TT | Yes | No | — | — | — | Resolved | Jan 31, 2022 | — | |
| Jan 1, 2022 | Jan 31, 2022 | TT | Yes | No | — | — | — | Resolved | Jan 31, 2022 | — | |
| Dec 1, 2021 | Dec 31, 2021 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2021 | — | |
| Dec 1, 2021 | Dec 31, 2021 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2021 | — | |
| Dec 1, 2021 | Dec 31, 2021 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2021 | — | |
| Dec 1, 2021 | Dec 31, 2021 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2021 | — | |
| Dec 1, 2021 | Dec 31, 2021 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2021 | — | |
| Dec 1, 2021 | Dec 31, 2021 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2021 | — | |
| Oct 1, 2021 | Oct 31, 2021 | TT | Yes | No | — | — | — | Resolved | Oct 31, 2021 | — | |
| Oct 1, 2021 | Oct 31, 2021 | TT | Yes | No | — | — | — | Resolved | Oct 31, 2021 | — | |
| Oct 1, 2021 | Oct 31, 2021 | TT | Yes | No | — | — | — | Resolved | Oct 31, 2021 | — | |
| Aug 1, 2021 | Aug 31, 2021 | TT | Yes | No | — | — | — | Resolved | Aug 31, 2021 | — | |
| Aug 1, 2021 | Aug 31, 2021 | TT | Yes | No | — | — | — | Resolved | Aug 31, 2021 | — | |
| Aug 1, 2021 | Aug 31, 2021 | TT | Yes | No | — | — | — | Resolved | Aug 31, 2021 | — | |
| Jun 1, 2021 | Jun 30, 2021 | MR | No | Yes | — | — | — | Resolved | Jun 30, 2021 | — | |
| Jun 1, 2021 | Jun 30, 2021 | MR | No | Yes | — | — | — | Resolved | Jun 30, 2021 | — | |
| Jun 1, 2021 | Jun 30, 2021 | MR | No | Yes | — | — | — | Resolved | Jun 30, 2021 | — | |
| Apr 1, 2021 | Apr 30, 2021 | MR | No | Yes | — | — | — | Resolved | Apr 30, 2021 | — | |
| Apr 1, 2021 | Apr 30, 2021 | MR | No | Yes | — | — | — | Resolved | Apr 30, 2021 | — | |
| Apr 1, 2021 | Apr 30, 2021 | MR | No | Yes | — | — | — | Resolved | Apr 30, 2021 | — | |
| Feb 1, 2020 | Feb 29, 2020 | MR | No | Yes | — | — | — | Resolved | Feb 29, 2020 | — | |
| Feb 1, 2020 | Feb 29, 2020 | MR | No | Yes | — | — | — | Resolved | Feb 29, 2020 | — | |
| Feb 1, 2020 | Feb 29, 2020 | MR | No | Yes | — | — | — | Resolved | Feb 29, 2020 | — | |
| Jul 1, 2019 | Jul 31, 2019 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2019 | — | |
| Jul 1, 2019 | Jul 31, 2019 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2019 | — | |
| Jul 1, 2019 | Jul 31, 2019 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2019 | — | |
| Jan 1, 2019 | Jan 31, 2019 | MR | No | Yes | — | — | — | Resolved | Jan 31, 2019 | — | |
| Jan 1, 2019 | Jan 31, 2019 | MR | No | Yes | — | — | — | Resolved | Jan 31, 2019 | — |
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.