CALVERT MANOR
Maryland — Community Water System — PWSID: MD0160004
System Information
| PWSID | MD0160004 |
| System Name | CALVERT MANOR |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 03 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 21, 1982 |
| Last Reported | Feb 26, 2026 |
Location & Contact
| State | Maryland |
| City | ACCOKEEK |
| ZIP Code | 20607 |
| Address | CALVERT MANOR CORPORATION |
| Organization | FISHER, KATIE |
| Phone | 301-292-9499 |
Population & Service
| Population Served | 300 |
| Service Connections | 93 |
Drinking Water Violations (59)
This water system has 59 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 | — | Other | No | No | — | — | — | Resolved | Oct 2, 2025 | — | |
| Oct 1, 2025 | — | Other | No | No | — | — | — | Resolved | Oct 2, 2025 | — | |
| Jul 1, 2025 | — | Other | No | No | — | — | — | Resolved | Oct 2, 2025 | — | |
| Jul 1, 2025 | — | Other | No | No | — | — | — | Resolved | Oct 2, 2025 | — | |
| Jul 1, 2025 | — | Other | No | No | — | — | — | Resolved | Oct 2, 2025 | — | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2021 | — | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2021 | — | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2021 | — | |
| Jan 1, 2019 | Dec 31, 2021 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2021 | — | |
| Oct 1, 2014 | — | MR | No | No | — | TT | — | Resolved | Nov 5, 2014 | — | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2010 | — | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2010 | — | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2010 | — | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2010 | — | |
| Sep 1, 2009 | Sep 30, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2009 | — | |
| Sep 1, 2009 | Sep 30, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2009 | — | |
| Sep 1, 2009 | Sep 30, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2009 | — | |
| Sep 1, 2009 | Sep 30, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2009 | — | |
| Sep 1, 2009 | Sep 30, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2009 | — | |
| Aug 1, 2009 | Aug 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2009 | — | |
| Aug 1, 2009 | Aug 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2009 | — | |
| Aug 1, 2009 | Aug 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2009 | — | |
| Aug 1, 2009 | Aug 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2009 | — | |
| Jun 1, 2009 | Jun 30, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2009 | — | |
| Jun 1, 2009 | Jun 30, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2009 | — | |
| Jun 1, 2009 | Jun 30, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2009 | — | |
| Jun 1, 2009 | Jun 30, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2009 | — | |
| May 1, 2009 | May 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2009 | — | |
| May 1, 2009 | May 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2009 | — | |
| May 1, 2009 | May 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2009 | — | |
| Nov 1, 2008 | Nov 30, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2008 | — | |
| Nov 1, 2008 | Nov 30, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2008 | — | |
| Nov 1, 2008 | Nov 30, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2008 | — | |
| Sep 1, 2008 | Sep 30, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2008 | — | |
| Sep 1, 2008 | Sep 30, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2008 | — | |
| Sep 1, 2008 | Sep 30, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2008 | — | |
| Oct 1, 2006 | — | MR | No | No | — | TT | — | Resolved | Jan 1, 2009 | — | |
| Oct 1, 2006 | — | MR | No | No | — | TT | — | Resolved | Jan 1, 2009 | — | |
| Oct 1, 2006 | — | MR | No | No | — | TT | — | Resolved | Jan 1, 2009 | — | |
| Mar 1, 2004 | Mar 31, 2004 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2004 | — | |
| Mar 1, 2004 | Mar 31, 2004 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2004 | — | |
| Feb 1, 2004 | Feb 29, 2004 | MR | No | No | — | 5% of samples | — | Resolved | Feb 29, 2004 | — | |
| Feb 1, 2004 | Feb 29, 2004 | MR | No | No | — | 5% of samples | — | Resolved | Feb 29, 2004 | — | |
| Jul 1, 2003 | — | Other | No | No | — | — | — | Resolved | Aug 13, 2003 | — | |
| Jul 1, 2003 | — | Other | No | No | — | — | — | Resolved | Aug 13, 2003 | — | |
| Feb 1, 2003 | Feb 28, 2003 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2003 | — | |
| Sep 1, 2002 | Sep 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2002 | — | |
| Sep 1, 2002 | Sep 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2002 | — | |
| Apr 1, 2002 | Apr 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2002 | — | |
| Jan 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2001 | — |
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.