ARROWHEAD BEACH COOP WATER ASSOC
Washington — Community Water System — PWSID: WA5303000
System Information
| PWSID | WA5303000 |
| System Name | ARROWHEAD BEACH COOP WATER ASSOC |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 7, 1981 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Washington |
| City | Mt Vernon |
| ZIP Code | 98273 |
| Address | 14263 Calhoun Rd |
| Organization | ARROWHEAD BEACH COOP WATER ASSOC |
| Phone | — |
Population & Service
| Population Served | 167 |
| Service Connections | 82 |
Drinking Water Violations (35)
This water system has 35 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 | Dec 31, 2025 | MCL | Yes | No | 85.28 UG/L | 0.080 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jul 1, 2025 | Sep 30, 2025 | MCL | Yes | No | 80.95 UG/L | 0.080 mg/L | — | Archived | Sep 30, 2025 | — | |
| Apr 1, 2025 | Jun 30, 2025 | MCL | Yes | No | 82.5 UG/L | 0.080 mg/L | — | Archived | Jun 30, 2025 | — | |
| Jan 1, 2025 | Mar 31, 2025 | MCL | Yes | No | 84.6 UG/L | 0.080 mg/L | — | Archived | Mar 31, 2025 | — | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | 85.8 UG/L | 0.080 mg/L | — | Archived | Dec 31, 2024 | — | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 91.43 UG/L | 0.080 mg/L | — | Archived | Sep 30, 2024 | — | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 115.07 UG/L | 0.080 mg/L | — | Archived | Jun 30, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | 121 UG/L | 0.080 mg/L | — | Archived | Mar 31, 2024 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MCL | Yes | No | 125.6 UG/L | 0.080 mg/L | — | Archived | Dec 31, 2023 | — | |
| Jul 1, 2023 | Sep 30, 2023 | MCL | Yes | No | 117.1 UG/L | 0.080 mg/L | — | Archived | Sep 30, 2023 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MCL | Yes | No | 106.1 UG/L | 0.080 mg/L | — | Archived | Jun 30, 2023 | — | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | 98.2 UG/L | 0.080 mg/L | — | Archived | Mar 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.010 mg/L | — | Archived | Dec 31, 2025 | — | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | 97.4 UG/L | 0.080 mg/L | — | Archived | Dec 31, 2022 | — | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | 98.6 UG/L | 0.080 mg/L | — | Archived | Sep 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | 91.1 UG/L | 0.080 mg/L | — | Archived | Jun 30, 2022 | — | |
| Jan 1, 2022 | Mar 31, 2022 | MCL | Yes | No | 86.3 UG/L | 0.080 mg/L | — | Archived | Mar 31, 2022 | — | |
| Apr 1, 2018 | Jun 30, 2018 | MCL | Yes | No | 90.7 UG/L | 0.080 mg/L | — | Resolved | Jun 30, 2018 | — | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2017 | — | |
| Oct 1, 2017 | Dec 31, 2017 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2017 | — | |
| Jul 1, 2017 | — | Other | No | No | — | — | — | Resolved | Feb 6, 2018 | — | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2017 | — | |
| Jan 1, 2000 | Oct 1, 2000 | MR | No | No | — | TT | — | Resolved | Oct 1, 2000 | — | |
| Jan 1, 1992 | Jan 31, 1992 | MR | No | Yes | — | 5% of samples | — | Archived | Jan 31, 1992 | — | |
| Oct 1, 1991 | Oct 31, 1991 | MR | No | Yes | — | 5% of samples | — | Archived | Oct 31, 1991 | — | |
| Oct 1, 1979 | Oct 31, 1979 | MR | No | No | — | 2 mg/L | — | Archived | Oct 31, 1979 | — | |
| Oct 1, 1979 | Oct 31, 1979 | MR | No | No | — | 0.005 mg/L | — | Archived | Oct 31, 1979 | — | |
| Oct 1, 1979 | Oct 31, 1979 | MR | No | No | — | 0.05 mg/L | — | Archived | Oct 31, 1979 | — | |
| Oct 1, 1979 | Oct 31, 1979 | MR | No | No | — | 15 pCi/L | — | Archived | Oct 31, 1979 | — | |
| Oct 1, 1979 | Oct 31, 1979 | MR | No | No | — | 0.010 mg/L | — | Archived | Oct 31, 1979 | — | |
| Oct 1, 1979 | Oct 31, 1979 | MR | No | No | — | 10 mg/L | — | Archived | Oct 31, 1979 | — | |
| Oct 1, 1979 | Oct 31, 1979 | MR | No | No | — | 0.1 mg/L | — | Archived | Oct 31, 1979 | — | |
| Oct 1, 1979 | Oct 31, 1979 | MR | No | No | — | 0.002 mg/L | — | Archived | Oct 31, 1979 | — | |
| Oct 1, 1979 | Oct 31, 1979 | MR | No | No | — | 4.0 mg/L | — | Archived | Oct 31, 1979 | — | |
| — | — | — | No | No | — | — | — | — | — | — |
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.