MOUNTAIN LAKES WATER DEP
New Jersey — Community Water System — PWSID: NJ1425001
System Information
| PWSID | NJ1425001 |
| System Name | MOUNTAIN LAKES WATER DEP |
| System Type | Community Water System |
| Water Source | Ground 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 | RIVERDALE |
| ZIP Code | 07457 |
| Address | 91 NEWARK POMTON TURNPIKE |
| Organization | RYDEN, WILLIAM |
| Phone | 973-334-1577 |
Population & Service
| Population Served | 4,012 |
| Service Connections | 1,501 |
Drinking Water Violations (327)
This water system has 327 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 1, 2025 | Aug 31, 2025 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Archived | Aug 31, 2025 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2024 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 22, 2024 | Consumer Confidence Rule |
| Jul 1, 2024 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 22, 2024 | Consumer Confidence Rule |
| Oct 1, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jan 26, 2024 | Consumer Confidence Rule |
| Oct 1, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jan 26, 2024 | Consumer Confidence Rule |
| Jul 1, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 5, 2023 | Consumer Confidence Rule |
| Jul 1, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 5, 2023 | Consumer Confidence Rule |
| Jul 1, 2021 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Unaddressed | — | Consumer Confidence Rule |
| Apr 1, 2021 | Jun 30, 2021 | Chlorine | MR | No | No | — | 4.0 mg/L | — | Resolved | Jun 30, 2021 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2021 | Jun 30, 2021 | Chlorine | MR | No | No | — | 4.0 mg/L | — | Resolved | Jun 30, 2021 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2021 | Jun 30, 2021 | Chlorine | MR | No | No | — | 4.0 mg/L | — | Resolved | Jun 30, 2021 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2016 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 4, 2016 | Consumer Confidence Rule |
| Jul 1, 2016 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 4, 2016 | Consumer Confidence Rule |
| Jul 1, 2014 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 19, 2014 | Consumer Confidence Rule |
| Jul 1, 2014 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 19, 2014 | Consumer Confidence Rule |
| Jul 1, 2013 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 30, 2013 | Consumer Confidence Rule |
| Jul 1, 2013 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 30, 2013 | Consumer Confidence Rule |
| Jul 1, 2011 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 25, 2011 | Consumer Confidence 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 1, 2005 | Dec 31, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2005 | Total Coliform Rule |
| Jul 1, 2005 | Sep 30, 2005 | p-Dichlorobenzene | MR | No | Yes | — | 0.075 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
| Jul 1, 2005 | Sep 30, 2005 | Trichloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
| Jul 1, 2005 | Sep 30, 2005 | o-Dichlorobenzene | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
| Jul 1, 2005 | Sep 30, 2005 | Vinyl chloride | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
| Jul 1, 2005 | Sep 30, 2005 | Tetrachloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
| Jul 1, 2005 | Sep 30, 2005 | Trichloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
| Jul 1, 2005 | Sep 30, 2005 | Carbon tetrachloride | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
| Jul 1, 2005 | Sep 30, 2005 | Styrene | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
| Jul 1, 2005 | Sep 30, 2005 | 1,2,4-Trichlorobenzene | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
| Jul 1, 2005 | Sep 30, 2005 | 1,1,2-Trichloroethane | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
| Jul 1, 2005 | Sep 30, 2005 | CHLOROBENZENE | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
| Jul 1, 2005 | Sep 30, 2005 | Tetrachloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
| Jul 1, 2005 | Sep 30, 2005 | Toluene | MR | No | Yes | — | 1 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
| Jul 1, 2005 | Sep 30, 2005 | p-Dichlorobenzene | MR | No | Yes | — | 0.075 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
| Jul 1, 2005 | Sep 30, 2005 | 1,1,1-Trichloroethane | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
| Jul 1, 2005 | Sep 30, 2005 | Benzene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
| Jul 1, 2005 | Sep 30, 2005 | Styrene | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
| Jul 1, 2005 | Sep 30, 2005 | Ethylbenzene | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
| Jul 1, 2005 | Sep 30, 2005 | trans-1,2-Dichloroethylene | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Sep 30, 2005 | Volatile Organic Chemicals |
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.