THE CALVERTON SCHOOL
Maryland - Community Water System - PWSID: MD1040022
System Information
| PWSID | MD1040022 |
| System Name | THE CALVERTON SCHOOL |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 03 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Mar 7, 1990 |
| Last Reported | Feb 26, 2026 |
Location & Contact
| State | Maryland |
| City | HUNTINGTOWN |
| ZIP Code | 20639 |
| Address | 300 CALVERTON SCHOOL ROAD |
| Organization | FORGETTE, ADRIENNE |
| Phone | 410-535-0216 |
Population & Service
| Population Served | 461 |
| Service Connections | 1 |
Drinking Water Violations (52)
This water system has 52 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 | - | - | - | Unaddressed | - | - | |
| Jul 1, 2025 | - | Other | No | No | - | - | - | Resolved | Nov 25, 2025 | - | |
| Jul 1, 2025 | - | Other | No | No | - | - | - | Resolved | Nov 25, 2025 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Resolved | Nov 12, 2024 | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | Nov 12, 2024 | - | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 10 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 10 mg/L | - | Archived | Dec 31, 2024 | - | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2011 | - | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2011 | - | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2011 | - | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2011 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Jul 1, 2008 | Sep 30, 2008 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 2008 | - | |
| Jul 1, 2008 | Sep 30, 2008 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 2008 | - | |
| Jul 1, 2008 | Sep 30, 2008 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 2008 | - | |
| Jul 1, 2008 | Sep 30, 2008 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 2008 | - | |
| May 1, 2007 | May 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2007 | - | |
| May 1, 2007 | May 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2007 | - | |
| May 1, 2007 | May 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2007 | - | |
| May 1, 2007 | May 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2007 | - | |
| Jul 1, 2005 | Jul 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2005 | - | |
| May 1, 2005 | May 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2005 | - | |
| May 1, 2005 | May 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2005 | - | |
| May 1, 2005 | May 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2005 | - | |
| Jan 1, 2000 | Dec 31, 2002 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2000 | Dec 31, 2002 | MR | No | Yes | - | 2 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2000 | Dec 31, 2002 | MR | No | Yes | - | 2 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2000 | Dec 31, 2002 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2000 | Dec 31, 2002 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2000 | Dec 31, 2002 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2000 | Dec 31, 2002 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2000 | Dec 31, 2002 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2000 | Dec 31, 2002 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2000 | Dec 31, 2002 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2000 | Dec 31, 2002 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2000 | Dec 31, 2002 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2000 | Dec 31, 2002 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2000 | Dec 31, 2002 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2000 | Dec 31, 2002 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2000 | Dec 31, 2002 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2000 | Dec 31, 2002 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Jan 1, 2000 | Dec 31, 2002 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Dec 31, 2002 | - | |
| Oct 1, 1998 | - | MR | No | No | - | TT | - | Resolved | Apr 6, 2000 | - | |
| Oct 1, 1998 | - | MR | No | No | - | TT | - | Resolved | Apr 6, 2000 | - | |
| Oct 1, 1998 | - | MR | No | No | - | TT | - | Resolved | Apr 6, 2000 | - |
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.