MAHWAH WATER DEPARTMENT
New Jersey — Community Water System — PWSID: NJ0233001
System Information
| PWSID | NJ0233001 |
| System Name | MAHWAH WATER DEPARTMENT |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 02 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 1, 1980 |
| Last Reported | Dec 23, 2025 |
Location & Contact
| State | New Jersey |
| City | MAHWAH |
| ZIP Code | 07430 |
| Address | 142 N RAILROAD AVE |
| Organization | VANDERBEEK, BRIAN |
| Phone | 201-529-4413 |
Population & Service
| Population Served | 26,777 |
| Service Connections | 8,775 |
Drinking Water Violations (38)
This water system has 38 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2025 | Jun 30, 2025 | Lead and Copper Rule | TT | Yes | No | — | TT | — | Archived | Jun 30, 2025 | Lead and Copper Rule |
| Jul 1, 2020 | Dec 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 3, 2020 | Lead and Copper Rule |
| Jul 1, 2020 | Dec 31, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 3, 2020 | Lead and Copper Rule |
| Jan 1, 2020 | Jun 30, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2020 | Lead and Copper Rule |
| Jan 1, 2020 | Jun 30, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2020 | Lead and Copper Rule |
| Jan 1, 2020 | Jun 30, 2020 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2020 | Lead and Copper Rule |
| Jan 1, 2019 | Jun 30, 2019 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 20, 2019 | Lead and Copper Rule |
| Jan 1, 2019 | Jun 30, 2019 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 20, 2019 | Lead and Copper Rule |
| Jan 1, 2019 | Jun 30, 2019 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 20, 2019 | Lead and Copper Rule |
| Jul 1, 2018 | Dec 31, 2018 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 30, 2018 | Lead and Copper Rule |
| Jul 1, 2018 | Dec 31, 2018 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 30, 2018 | Lead and Copper Rule |
| Mar 1, 2015 | Mar 31, 2015 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 11, 2015 | Total Coliform Rule |
| Mar 1, 2015 | Mar 31, 2015 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 11, 2015 | Total Coliform Rule |
| Jan 1, 2015 | Dec 31, 2015 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Aug 4, 2015 | Nitrate Rule |
| Jan 1, 2015 | Dec 31, 2015 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Aug 4, 2015 | Nitrate Rule |
| Mar 1, 2014 | Mar 31, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 5, 2014 | Total Coliform Rule |
| Nov 1, 2012 | — | E. COLI | MR | No | No | — | — | — | Resolved | Dec 20, 2012 | Ground Water Rule |
| Nov 1, 2012 | — | E. COLI | MR | No | No | — | — | — | Resolved | Dec 20, 2012 | Ground Water Rule |
| Nov 1, 2012 | — | E. COLI | MR | No | No | — | — | — | Resolved | Dec 20, 2012 | Ground Water Rule |
| Oct 1, 2012 | Oct 31, 2012 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2012 | Total Coliform Rule |
| Oct 1, 2012 | Oct 31, 2012 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2012 | Total Coliform Rule |
| Oct 1, 2012 | Oct 31, 2012 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2012 | Total Coliform Rule |
| Oct 1, 2012 | Oct 31, 2012 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2012 | Total Coliform Rule |
| Jul 1, 2011 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 13, 2011 | Consumer Confidence Rule |
| Jul 1, 2011 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 13, 2011 | Consumer Confidence Rule |
| Jan 1, 2005 | Dec 31, 2005 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2005 | Nitrate Rule |
| Jan 1, 2005 | Dec 31, 2005 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 16, 2005 | Nitrate Rule |
| Jan 1, 2005 | Dec 31, 2005 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2005 | Nitrate Rule |
| Jan 1, 2005 | Dec 31, 2005 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2005 | Nitrate Rule |
| Jan 1, 2005 | Dec 31, 2005 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2005 | Nitrate Rule |
| Jan 1, 2005 | Dec 31, 2005 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2005 | Nitrate Rule |
| Jan 1, 2005 | Dec 31, 2005 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2005 | Nitrate Rule |
| Jan 1, 2005 | Dec 31, 2005 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2005 | Nitrate Rule |
| Nov 1, 2003 | Nov 30, 2003 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2003 | Total Coliform Rule |
| — | — | — | No | No | — | — | — | — | — | — | |
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| — | — | — | 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.