HIDDEN HOLLOW MHC
California - Community Water System - PWSID: AZ0403362
System Information
| PWSID | AZ0403362 |
| System Name | HIDDEN HOLLOW MHC |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Mixed |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Oct 5, 1979 |
| Last Reported | Mar 12, 2026 |
Location & Contact
| State | California |
| City | HUNTINGTON BEACH |
| ZIP Code | 92648 |
| Address | ATTN KORY D. HEARN |
| Organization | HIDDEN HOLLOW MHC LLC |
| Phone | 714-960-1833 |
Population & Service
| Population Served | 400 |
| Service Connections | 120 |
Drinking Water Violations (103)
This water system has 103 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 8, 2024 | - | MR | No | No | - | TT | - | Resolved | Sep 9, 2024 | - | |
| Sep 8, 2024 | - | MR | No | No | - | TT | - | Resolved | Sep 9, 2024 | - | |
| Jun 1, 2024 | - | RPT | No | No | - | - | - | Resolved | Jul 26, 2024 | - | |
| Jun 1, 2024 | - | RPT | No | No | - | - | - | Resolved | Jul 26, 2024 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2022 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2022 | - | |
| Mar 1, 2017 | - | RPT | No | No | - | - | - | Resolved | Apr 14, 2017 | - | |
| Aug 1, 2015 | Aug 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2015 | - | |
| Aug 1, 2015 | Aug 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2015 | - | |
| Jul 29, 2015 | - | MR | No | Yes | - | - | - | Resolved | Oct 30, 2015 | - | |
| Jul 29, 2015 | - | MR | No | Yes | - | - | - | Resolved | Oct 30, 2015 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 2011 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 2011 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 2010 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 2010 | - | |
| Jul 1, 2008 | - | Other | No | No | - | - | - | Resolved | Oct 30, 2008 | - | |
| Mar 1, 2008 | Mar 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2008 | - | |
| Oct 1, 2007 | - | MR | No | No | - | TT | - | Resolved | Jun 10, 2008 | - | |
| Oct 1, 2007 | - | MR | No | No | - | TT | - | Resolved | Jun 10, 2008 | - | |
| Jul 1, 2005 | - | Other | No | No | - | - | - | Resolved | Feb 28, 2006 | - | |
| Jul 1, 2004 | - | Other | No | No | - | - | - | Resolved | Feb 28, 2006 | - | |
| Jul 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Sep 5, 2007 | - | |
| Jun 1, 2004 | Jun 30, 2004 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.7 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.075 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.007 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jul 1, 2003 | - | Other | No | No | - | - | - | Resolved | Feb 28, 2006 | - | |
| Jan 1, 2003 | Jan 31, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2003 | - | |
| Jul 1, 2002 | - | Other | No | No | - | - | - | Resolved | Feb 28, 2006 | - | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Dec 1, 1999 | Dec 31, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 1999 | - | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1999 | - |
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.