NORTHWESTERN LANCASTER CO AUTH
Pennsylvania - Community Water System - PWSID: PA7360164
System Information
| PWSID | PA7360164 |
| System Name | NORTHWESTERN LANCASTER CO AUTH |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 03 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 29, 1980 |
| Last Reported | Mar 30, 2026 |
Location & Contact
| State | Pennsylvania |
| City | MANHEIM |
| ZIP Code | 17545 |
| Address | 97 N PENRYN RD |
| Organization | NORTHWESTERN LANCASTER CO AUTH |
| Phone | 717-665-4508 |
Population & Service
| Population Served | 2,968 |
| Service Connections | 844 |
Drinking Water Violations (166)
This water system has 166 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, 2025 | Sep 30, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Mar 31, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Mar 31, 2025 | - | |
| Dec 11, 2018 | - | Other | No | No | - | - | - | Resolved | Jan 30, 2019 | - | |
| Dec 11, 2018 | - | Other | No | No | - | - | - | Resolved | Jan 30, 2019 | - | |
| Dec 1, 2017 | Dec 31, 2017 | MR | No | No | - | - | - | Resolved | Dec 31, 2017 | - | |
| Dec 1, 2017 | Dec 31, 2017 | MR | No | No | - | - | - | Resolved | Dec 31, 2017 | - | |
| Dec 1, 2017 | Dec 31, 2017 | MR | No | No | - | - | - | Resolved | Dec 31, 2017 | - | |
| Dec 1, 2017 | Dec 31, 2017 | MR | No | No | - | - | - | Resolved | Dec 31, 2017 | - | |
| Nov 1, 2017 | Nov 30, 2017 | MR | No | No | - | - | - | Resolved | Nov 30, 2017 | - | |
| Nov 1, 2017 | Nov 30, 2017 | MR | No | No | - | - | - | Resolved | Nov 30, 2017 | - | |
| Nov 1, 2017 | Nov 30, 2017 | MR | No | No | - | - | - | Resolved | Nov 30, 2017 | - | |
| Nov 1, 2017 | Nov 30, 2017 | MR | No | No | - | - | - | Resolved | Nov 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Oct 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Oct 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Oct 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Oct 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jul 12, 2011 | - | Other | No | No | - | - | - | Resolved | Sep 7, 2011 | - | |
| Jul 12, 2011 | - | Other | No | No | - | - | - | Resolved | Sep 7, 2011 | - | |
| Jul 11, 2011 | - | Other | No | No | - | - | - | Resolved | Sep 7, 2011 | - | |
| Jul 11, 2011 | - | Other | No | No | - | - | - | Resolved | Sep 7, 2011 | - | |
| Jul 11, 2011 | - | Other | No | No | - | - | - | Resolved | Sep 7, 2011 | - | |
| Jul 11, 2011 | - | Other | No | No | - | - | - | Resolved | Sep 7, 2011 | - | |
| Jul 11, 2011 | - | Other | No | No | - | - | - | Resolved | Sep 7, 2011 | - | |
| Jul 11, 2011 | - | Other | No | No | - | - | - | Resolved | Sep 7, 2011 | - | |
| Apr 1, 2011 | Jun 30, 2011 | MCL | Yes | No | 11.8 MG/L | 10 mg/L | - | Resolved | Jun 30, 2011 | - | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2011 | - | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2011 | - | |
| Apr 1, 2011 | Jun 30, 2011 | MCL | Yes | No | 11.8 MG/L | 10 mg/L | - | Resolved | Jun 30, 2011 | - | |
| Apr 1, 2011 | Jun 30, 2011 | MCL | Yes | No | 11.8 MG/L | 10 mg/L | - | Resolved | Jun 30, 2011 | - | |
| Apr 1, 2011 | Jun 30, 2011 | MCL | Yes | No | 11.8 MG/L | 10 mg/L | - | Resolved | Jun 30, 2011 | - | |
| Jan 1, 2011 | Mar 31, 2011 | MCL | Yes | No | 10.85 MG/L | 10 mg/L | - | Resolved | Mar 31, 2011 | - | |
| Jan 1, 2011 | Mar 31, 2011 | MCL | Yes | No | 10.85 MG/L | 10 mg/L | - | Resolved | Mar 31, 2011 | - | |
| Jan 1, 2011 | Mar 31, 2011 | MCL | Yes | No | 10.85 MG/L | 10 mg/L | - | Resolved | Mar 31, 2011 | - | |
| Jan 1, 2011 | Mar 31, 2011 | MCL | Yes | No | 10.85 MG/L | 10 mg/L | - | Resolved | Mar 31, 2011 | - | |
| Jan 1, 2011 | Mar 31, 2011 | MCL | Yes | No | 10.85 MG/L | 10 mg/L | - | Resolved | Mar 31, 2011 | - | |
| Jan 1, 2011 | Mar 31, 2011 | MCL | Yes | No | 10.85 MG/L | 10 mg/L | - | Resolved | Mar 31, 2011 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jul 12, 2010 | - | Other | No | No | - | - | - | Resolved | Nov 29, 2011 | - |
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.