ARROWHEAD LAKE MHP
California - Community Water System - PWSID: OH4800112
System Information
| PWSID | OH4800112 |
| System Name | ARROWHEAD LAKE MHP |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 30, 1981 |
| Last Reported | Feb 25, 2026 |
Location & Contact
| State | California |
| City | WEST COVINA |
| ZIP Code | 91791 |
| Address | 100 N Barranca Street |
| Organization | NEWKIRK, ALEJANDRO |
| Phone | 626-768-9536 |
Population & Service
| Population Served | 327 |
| Service Connections | 247 |
Drinking Water Violations (74)
This water system has 74 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2024 | - | |
| Jan 3, 2022 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Dec 13, 2018 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Feb 1, 2018 | Feb 28, 2018 | MON | No | Yes | - | - | - | Resolved | Feb 28, 2018 | - | |
| Feb 1, 2018 | Feb 28, 2018 | MON | No | Yes | - | - | - | Resolved | Feb 28, 2018 | - | |
| Feb 1, 2018 | Feb 28, 2018 | MON | No | Yes | - | - | - | Resolved | Feb 28, 2018 | - | |
| Feb 1, 2018 | Feb 28, 2018 | MON | No | Yes | - | - | - | Resolved | Feb 28, 2018 | - | |
| Jul 1, 2016 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Jun 1, 2011 | Jun 30, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2011 | - | |
| Jun 1, 2011 | Jun 30, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2011 | - | |
| Jun 1, 2011 | Jun 30, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2011 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Sep 30, 2005 | - | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2005 | - | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Sep 30, 2005 | - | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Sep 30, 2005 | - | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Sep 30, 2005 | - | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2005 | - | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Sep 30, 2005 | - | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Sep 30, 2005 | - | |
| Jul 1, 2005 | Sep 30, 2005 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MR | No | Yes | - | - | - | Resolved | Jun 29, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MR | No | Yes | - | - | - | Resolved | Jun 29, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MR | No | Yes | - | - | - | Resolved | Jun 29, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Jun 29, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Jun 29, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Jun 29, 2005 | - | |
| Jul 1, 2002 | Sep 30, 2002 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Sep 30, 2002 | - | |
| Jul 1, 2002 | Sep 30, 2002 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2002 | - | |
| Jul 1, 2002 | Sep 30, 2002 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2002 | - | |
| Jul 1, 2002 | Sep 30, 2002 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Sep 30, 2002 | - | |
| Jul 1, 2002 | Sep 30, 2002 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Sep 30, 2002 | - | |
| Jul 1, 2002 | Sep 30, 2002 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Sep 30, 2002 | - | |
| Jul 1, 2002 | Sep 30, 2002 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2002 | - | |
| Jul 1, 2002 | Sep 30, 2002 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Sep 30, 2002 | - | |
| Jul 1, 2002 | Sep 30, 2002 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Sep 30, 2002 | - | |
| Jun 1, 2002 | Jun 30, 2002 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2002 | - | |
| Jun 1, 2002 | Jun 30, 2002 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2002 | - |
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.