LAKE HOPATCONG, NJ
JEFFERSON TWP DMH DIVISI Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of November 1, 1999. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in NJ.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace New Jersey’s official records. Always confirm current status with New Jersey before making decisions based on this information.
System facts
- System ID (PWSID)
- NJ1414018
- System type
- Community Water System
- Population served
- 35
- Service connections
- 14
- Ownership
- local government
- Water source
- groundwater (wells)
Violation history
Monitoring, Regular
—Selenium
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Arsenic
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Cadmium
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Barium
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Mercury
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Fluoride
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Chromium
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Nitrate
December 23, 1980 – December 22, 1983
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
July 1, 1980 – June 30, 1984
ArchivedMonitoring, Regular
—Barium
June 24, 1979 – June 23, 1982
ArchivedMonitoring, Regular
—Arsenic
June 24, 1979 – June 23, 1982
ArchivedMonitoring, Regular
—Chromium
June 24, 1979 – June 23, 1982
ArchivedMonitoring, Regular
—Mercury
June 24, 1979 – June 23, 1982
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Selenium | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Arsenic | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Cadmium | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Barium | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Mercury | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Fluoride | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Chromium | — | Archived |
| December 23, 1980 – December 22, 1983 | Monitoring, Regular | Nitrate | — | Archived |
| July 1, 1980 – June 30, 1984 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
| June 24, 1979 – June 23, 1982 | Monitoring, Regular | Barium | — | Archived |
| June 24, 1979 – June 23, 1982 | Monitoring, Regular | Arsenic | — | Archived |
| June 24, 1979 – June 23, 1982 | Monitoring, Regular | Chromium | — | Archived |
| June 24, 1979 – June 23, 1982 | Monitoring, Regular | Mercury | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- September 30, 1982State Violation/Reminder Notice8 linked violations
Last known contact on file (system is inactive)
Not on record
973-697-1500
LAKE HOPATCONG, NJ 07849