HIDDEN VALLEY
Maryland — Community Water System — PWSID: MI0040208
System Information
| PWSID | MI0040208 |
| System Name | HIDDEN VALLEY |
| 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 | Feb 3, 1981 |
| Last Reported | Mar 30, 2026 |
Location & Contact
| State | Maryland |
| City | GAITHERSBURG |
| ZIP Code | 20883 |
| Address | PO BOX 83165 |
| Organization | ZIEF, YANIV |
| Phone | 240-630-2734 |
Population & Service
| Population Served | 125 |
| Service Connections | 50 |
Drinking Water Violations (20)
This water system has 20 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2020 | — | Other | No | No | — | — | — | Resolved | Dec 18, 2020 | — | |
| Jul 1, 2020 | — | Other | No | No | — | — | — | Resolved | Dec 18, 2020 | — | |
| Aug 1, 2014 | Aug 31, 2014 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2014 | — | |
| Aug 1, 2014 | Aug 31, 2014 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2014 | — | |
| Aug 1, 2014 | Aug 31, 2014 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2014 | — | |
| Aug 1, 2014 | Aug 31, 2014 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2014 | — | |
| Jul 1, 2014 | Jul 31, 2014 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2014 | — | |
| Jul 1, 2014 | Jul 31, 2014 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2014 | — | |
| Jul 1, 2014 | Jul 31, 2014 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2014 | — | |
| Jul 1, 2014 | Jul 31, 2014 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2014 | — | |
| Aug 1, 2005 | Aug 31, 2005 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2005 | — | |
| Aug 1, 2005 | Aug 31, 2005 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2005 | — | |
| Aug 1, 2005 | Aug 31, 2005 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2005 | — | |
| Aug 1, 2005 | Aug 31, 2005 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2005 | — | |
| Aug 1, 2000 | Aug 31, 2000 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2000 | — | |
| Aug 1, 2000 | Aug 31, 2000 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2000 | — | |
| Aug 1, 2000 | Aug 31, 2000 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2000 | — | |
| Aug 1, 2000 | Aug 31, 2000 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2000 | — | |
| Aug 1, 2000 | Aug 31, 2000 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2000 | — | |
| Aug 1, 1997 | Aug 31, 1997 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 1997 | — |
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.