WALTERS BASIN
New Hampshire — Transient Non-Community — PWSID: NH1168150
System Information
| PWSID | NH1168150 |
| System Name | WALTERS BASIN |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 01 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jul 14, 1994 |
| Last Reported | Dec 15, 2025 |
Location & Contact
| State | New Hampshire |
| City | HOLDERNESS |
| ZIP Code | 03245 |
| Address | PO BOX 195 |
| Organization | WALTERS BASIN |
| Phone | — |
Population & Service
| Population Served | 450 |
| Service Connections | 5 |
Drinking Water Violations (36)
This water system has 36 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 19, 2021 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Dec 30, 2021 | Ground Water Rule |
| Dec 19, 2021 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Dec 30, 2021 | Ground Water Rule |
| Dec 19, 2021 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Dec 30, 2021 | Ground Water Rule |
| Dec 19, 2021 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Dec 30, 2021 | Ground Water Rule |
| Jan 1, 2013 | Mar 31, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2013 | Total Coliform Rule |
| Jan 1, 2013 | Mar 31, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2013 | Total Coliform Rule |
| Jan 1, 2013 | Mar 31, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2013 | Total Coliform Rule |
| Jan 1, 2013 | Mar 31, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2013 | Total Coliform Rule |
| Apr 1, 2011 | Jun 30, 2011 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 2011 | Total Coliform Rule |
| Apr 1, 2011 | Jun 30, 2011 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 2011 | Total Coliform Rule |
| Apr 1, 2011 | Jun 30, 2011 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 2011 | Total Coliform Rule |
| Jul 1, 2007 | Sep 30, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2007 | Total Coliform Rule |
| Jul 1, 2007 | Sep 30, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2007 | Total Coliform Rule |
| Jul 1, 2007 | Sep 30, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2007 | Total Coliform Rule |
| Jul 1, 2007 | Sep 30, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2007 | Total Coliform Rule |
| May 29, 2007 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 16, 2007 | Public Notice Rule and Revised PN Rule |
| May 29, 2007 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 16, 2007 | Public Notice Rule and Revised PN Rule |
| Jan 1, 2007 | Dec 31, 2007 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2007 | Nitrate Rule |
| Jan 1, 2007 | Mar 31, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2007 | Total Coliform Rule |
| Jan 1, 2007 | Dec 31, 2007 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2007 | Nitrate Rule |
| Jan 1, 2007 | Dec 31, 2007 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2007 | Nitrate Rule |
| Dec 5, 2006 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 16, 2007 | Public Notice Rule and Revised PN Rule |
| Dec 5, 2006 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 16, 2007 | Public Notice Rule and Revised PN Rule |
| Jul 1, 2006 | Sep 30, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Sep 30, 2006 | Total Coliform Rule |
| Jul 1, 2006 | Sep 30, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Sep 30, 2006 | Total Coliform Rule |
| Jul 1, 2006 | Sep 30, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Sep 30, 2006 | Total Coliform Rule |
| Dec 5, 2004 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jan 12, 2005 | Public Notice Rule and Revised PN Rule |
| Dec 5, 2004 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jan 12, 2005 | Public Notice Rule and Revised PN Rule |
| Jul 1, 2004 | Sep 30, 2004 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2004 | Total Coliform Rule |
| Jul 1, 2004 | Sep 30, 2004 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2004 | Total Coliform Rule |
| Jul 1, 2004 | Sep 30, 2004 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2004 | Total Coliform Rule |
| Jul 1, 2004 | Sep 30, 2004 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2004 | Total Coliform Rule |
| Jan 1, 2004 | Dec 31, 2006 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2004 | Dec 31, 2006 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2004 | Dec 31, 2006 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2004 | Dec 31, 2006 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
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.