BLACK BUTTE MOBILE H.P.
California - Community Water System - PWSID: CA1100405
System Information
| PWSID | CA1100405 |
| System Name | BLACK BUTTE MOBILE H.P. |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Non-Inventory |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Oct 23, 1986 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | California |
| City | CONCORD |
| ZIP Code | 94520 |
| Address | 1647 Willow Pass Road |
| Organization | VASHON, JOHN |
| Phone | 925-640-7121 |
Population & Service
| Population Served | 148 |
| Service Connections | 49 |
Drinking Water Violations (15)
This water system has 15 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2022 | Jan 31, 2022 | MON | No | Yes | - | - | - | Archived | Jan 31, 2022 | - | |
| Oct 1, 2021 | Dec 31, 2021 | MON | No | No | - | - | - | Archived | Dec 31, 2021 | - | |
| Jul 1, 2021 | Jul 31, 2021 | MON | No | Yes | - | - | - | Archived | Jul 31, 2021 | - | |
| Dec 1, 2018 | Dec 31, 2018 | MON | No | Yes | - | - | - | Archived | Dec 31, 2018 | - | |
| Sep 1, 2017 | Sep 30, 2017 | MON | No | Yes | - | - | - | Archived | Sep 30, 2017 | - | |
| Apr 1, 2004 | Apr 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 2004 | - | |
| Apr 1, 2004 | Apr 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 30, 2004 | - | |
| Dec 1, 2003 | Dec 31, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2003 | - | |
| Dec 1, 2003 | Dec 31, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2003 | - | |
| Nov 1, 2003 | Nov 30, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2003 | - | |
| Nov 1, 2003 | Nov 30, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2003 | - | |
| Aug 1, 1995 | Aug 31, 1995 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1995 | - | |
| Aug 1, 1995 | Aug 31, 1995 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1995 | - | |
| Jul 1, 1993 | - | MR | No | No | - | TT | - | Resolved | Sep 30, 2005 | - | |
| - | - | - | 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.