HEMLOCK HAVEN
New Hampshire - Community Water System - PWSID: NH1053020
System Information
| PWSID | NH1053020 |
| System Name | HEMLOCK HAVEN |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 01 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 8, 1979 |
| Last Reported | Feb 19, 2026 |
Location & Contact
| State | New Hampshire |
| City | PORTSMOUTH |
| ZIP Code | 03801 |
| Address | 559 SAGAMORE AVE UT 13 |
| Organization | - |
| Phone | - |
Population & Service
| Population Served | 207 |
| Service Connections | 83 |
Drinking Water Violations (49)
This water system has 49 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, 2023 | Nov 1, 2023 | MCL | Yes | No | - | - | - | Resolved | Nov 1, 2023 | - | |
| Oct 1, 2023 | Nov 1, 2023 | MCL | Yes | No | - | - | - | Resolved | Nov 1, 2023 | - | |
| Oct 1, 2023 | Nov 1, 2023 | MCL | Yes | No | - | - | - | Resolved | Nov 1, 2023 | - | |
| Oct 1, 2023 | Nov 1, 2023 | MCL | Yes | No | - | - | - | Resolved | Nov 1, 2023 | - | |
| Dec 30, 2021 | - | MR | No | No | - | TT | - | Resolved | Jan 19, 2022 | - | |
| Dec 30, 2021 | - | MR | No | No | - | TT | - | Resolved | Jan 19, 2022 | - | |
| Oct 1, 2005 | Dec 31, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2005 | - | |
| Oct 1, 2005 | Dec 31, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2005 | - | |
| Oct 1, 2005 | Dec 31, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2005 | - | |
| Oct 1, 2005 | Dec 31, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 1996 | Sep 16, 1998 | MR | No | No | - | TT | - | Resolved | Sep 16, 1998 | - | |
| Jan 1, 1996 | Sep 16, 1998 | MR | No | No | - | TT | - | Resolved | Sep 16, 1998 | - | |
| Jan 1, 1995 | Dec 31, 1995 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1995 | - | |
| Jan 1, 1995 | Feb 17, 1998 | MR | No | No | - | TT | - | Resolved | Feb 17, 1998 | - | |
| Jan 1, 1995 | Feb 17, 1998 | MR | No | No | - | TT | - | Resolved | Feb 17, 1998 | - | |
| Jan 1, 1995 | Dec 31, 1995 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1995 | - | |
| Jan 1, 1995 | Dec 31, 1995 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1995 | - | |
| Jan 1, 1995 | Dec 31, 1995 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1995 | - | |
| Jan 1, 1995 | Dec 31, 1995 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1995 | - | |
| Jan 1, 1994 | Dec 31, 1994 | MR | No | No | - | 10 mg/L | - | Resolved | Dec 31, 1994 | - | |
| Jan 1, 1994 | Dec 31, 1994 | MR | No | No | - | 10 mg/L | - | Resolved | Dec 31, 1994 | - | |
| Jan 1, 1994 | Dec 31, 1994 | MR | No | No | - | 10 mg/L | - | Resolved | Dec 31, 1994 | - | |
| Jan 1, 1994 | Dec 31, 1994 | MR | No | No | - | 10 mg/L | - | Resolved | Dec 31, 1994 | - | |
| Jan 1, 1994 | Dec 31, 1994 | MR | No | No | - | 10 mg/L | - | Resolved | Dec 31, 1994 | - | |
| Jan 1, 1994 | Sep 18, 1997 | MR | No | No | - | TT | - | Resolved | Sep 18, 1997 | - | |
| Aug 1, 1991 | Aug 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Archived | Aug 31, 1991 | - | |
| Aug 1, 1991 | Aug 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Archived | Aug 31, 1991 | - | |
| Aug 1, 1991 | Aug 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Archived | Aug 31, 1991 | - | |
| Aug 1, 1991 | Aug 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Archived | Aug 31, 1991 | - | |
| Jul 1, 1991 | Jul 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 1991 | - | |
| Jul 1, 1991 | Jul 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 1991 | - | |
| Jul 1, 1991 | Jul 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 1991 | - | |
| Jul 1, 1991 | Jul 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 1991 | - | |
| Jul 1, 1991 | Jul 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 1991 | - | |
| Jul 1, 1991 | Jul 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 1991 | - | |
| Jul 1, 1991 | Jul 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 1991 | - | |
| Jul 1, 1991 | Jul 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 1991 | - | |
| Jul 1, 1991 | Jul 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 1991 | - | |
| Jun 1, 1991 | Jun 30, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1991 | - | |
| Jun 1, 1991 | Jun 30, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1991 | - | |
| Jun 1, 1991 | Jun 30, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1991 | - | |
| Jun 1, 1991 | Jun 30, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1991 | - | |
| Jun 1, 1991 | Jun 30, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1991 | - | |
| Jun 1, 1991 | Jun 30, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1991 | - | |
| Jun 1, 1991 | Jun 30, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1991 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | 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.