JEFFERSON TWP W U LK HOP
PWSID: NJ1414011 · Lake Hopatcong, NJ · Serves 8,500 people
JEFFERSON TWP W U LK HOP has 21 health-based violations out of 21 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.
JEFFERSON TWP W U LK HOP (PWSID NJ1414011) is a cws water system drawing from a groundwater source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 8,500 people in Lake Hopatcong, NJ, and is subject to primacy enforcement by the New Jersey drinking-water program.
The system's federal compliance record contains 21 total violations, with 21 classified as health-based (MCL exceedances or treatment-technique failures). 2 distinct contaminants have been cited, including Combined Radium 226/228, E. coli. Recorded violations span 2022–2025.
A historical violation does not necessarily describe current water quality, systems must notify customers and remediate, and monitoring-type violations often reflect reporting lapses rather than contamination. The most authoritative real-time source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the New Jersey state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- NJ1414011
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Lake Hopatcong, NJ
- Population Served
- 8,500
- Health Violations
- Yes (21)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Combined Radium 226/228 | 19 | 19 |
| E. coli | 2 | 2 |
Violation History (21)
| Contaminant | Health | Date |
|---|---|---|
| Combined Radium 226/228 | Yes | Jan 1, 2025 |
| E. coli | Yes | Sep 19, 2024 |
| E. coli | Yes | Sep 19, 2024 |
| Combined Radium 226/228 | Yes | Jul 1, 2024 |
| Combined Radium 226/228 | Yes | Jul 1, 2024 |
| Combined Radium 226/228 | Yes | Jul 1, 2024 |
| Combined Radium 226/228 | Yes | Jan 1, 2024 |
| Combined Radium 226/228 | Yes | Jan 1, 2024 |
| Combined Radium 226/228 | Yes | Jan 1, 2024 |
| Combined Radium 226/228 | Yes | Jul 1, 2023 |
| Combined Radium 226/228 | Yes | Jul 1, 2023 |
| Combined Radium 226/228 | Yes | Jan 1, 2023 |
| Combined Radium 226/228 | Yes | Jan 1, 2023 |
| Combined Radium 226/228 | Yes | Jan 1, 2023 |
| Combined Radium 226/228 | Yes | Jan 1, 2023 |
| Combined Radium 226/228 | Yes | Jul 1, 2022 |
| Combined Radium 226/228 | Yes | Jul 1, 2022 |
| Combined Radium 226/228 | Yes | Jul 1, 2022 |
| Combined Radium 226/228 | Yes | Jan 1, 2022 |
| Combined Radium 226/228 | Yes | Jan 1, 2022 |
| Combined Radium 226/228 | Yes | Jan 1, 2022 |
Frequently Asked Questions
Is JEFFERSON TWP W U LK HOP water safe to drink?
How many people does JEFFERSON TWP W U LK HOP serve?
What violations does JEFFERSON TWP W U LK HOP have?
What contaminants have been found in JEFFERSON TWP W U LK HOP water?
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About This Data
Water system data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations that may pose a direct risk to public health. Violation records may span multiple years.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.