LAKE HOPATCONG, NJ · Morris County
JEFFERSON TWP W U LK HOP Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
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)
- NJ1414011
- System type
- Community Water System
- Population served
- 8,500
- Service connections
- 2,490
- Ownership
- local government
- Water source
- groundwater (wells)
Violation history
Report Sample Result/Fail Monitor (RTCR)
—Revised Total Coliform Rule
July 11, 2025 – August 5, 2025
ResolvedMonitoring, Regular
—Styrene
January 1, 2025 – December 31, 2025
ArchivedMonitoring, Regular
—Ethylbenzene
January 1, 2025 – December 31, 2025
ArchivedWater Quality Parameter M/R
—Lead and Copper Rule
January 1, 2025 – June 30, 2025
ArchivedMonitoring, Regular
—Xylenes, Total
January 1, 2025 – December 31, 2025
ArchivedPublic Notification Violation for NPDWR Violation
—Public Notice
May 10, 2024 – May 10, 2024
ResolvedWater Quality Parameter M/R
—Lead and Copper Rule
July 1, 2022 – December 31, 2022
ResolvedMonitoring, Regular
—Ethylbenzene
October 1, 2011 – December 31, 2011
ResolvedMonitoring, Regular
—Carbon tetrachloride
October 1, 2011 – December 31, 2011
ResolvedMonitoring, Regular
—Selenium
June 25, 1982 – June 24, 1983
ArchivedMonitoring, Regular
—Chromium
June 25, 1982 – June 24, 1983
ArchivedMonitoring, Regular
—Cadmium
June 25, 1982 – June 24, 1983
ArchivedMonitoring, Regular
—Arsenic
June 25, 1982 – June 24, 1983
ArchivedMonitoring, Regular
—Mercury
June 25, 1982 – June 24, 1983
ArchivedMonitoring, Regular
—Selenium
June 25, 1981 – June 24, 1982
ArchivedMonitoring, Regular
—Barium
June 25, 1981 – June 24, 1982
ArchivedMonitoring, Regular
—Chromium
June 25, 1981 – June 24, 1982
ArchivedMonitoring, Regular
—Fluoride
June 24, 1980 – June 23, 1981
ArchivedMonitoring, Regular
—Chromium
June 24, 1980 – June 23, 1981
ArchivedMonitoring, Regular
—Barium
June 24, 1980 – June 23, 1981
ArchivedMonitoring, Regular
—Arsenic
June 24, 1980 – June 23, 1981
ArchivedMonitoring, Regular
—Selenium
June 24, 1980 – June 23, 1981
ArchivedMonitoring, Regular
—Methoxychlor
June 24, 1978 – June 23, 1981
ArchivedMonitoring, Regular
—Endrin
June 24, 1978 – June 23, 1981
ArchivedMonitoring, Regular
—2,4,5-TP
June 24, 1978 – June 23, 1981
ArchivedMonitoring, Regular
—2,4-D
June 24, 1978 – June 23, 1981
ArchivedMonitoring, Regular
—Toxaphene
June 24, 1978 – June 23, 1981
ArchivedMonitoring, Regular
—BHC-GAMMA
June 24, 1978 – June 23, 1981
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 11, 2025 – August 5, 2025 | Report Sample Result/Fail Monitor (RTCR) | Revised Total Coliform Rule | — | Resolved |
| January 1, 2025 – December 31, 2025 | Monitoring, Regular | Styrene | — | Archived |
| January 1, 2025 – December 31, 2025 | Monitoring, Regular | Ethylbenzene | — | Archived |
| January 1, 2025 – June 30, 2025 | Water Quality Parameter M/R | Lead and Copper Rule | — | Archived |
| January 1, 2025 – December 31, 2025 | Monitoring, Regular | Xylenes, Total | — | Archived |
| May 10, 2024 – May 10, 2024 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| July 1, 2022 – December 31, 2022 | Water Quality Parameter M/R | Lead and Copper Rule | — | Resolved |
| October 1, 2011 – December 31, 2011 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| October 1, 2011 – December 31, 2011 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| June 25, 1982 – June 24, 1983 | Monitoring, Regular | Selenium | — | Archived |
| June 25, 1982 – June 24, 1983 | Monitoring, Regular | Chromium | — | Archived |
| June 25, 1982 – June 24, 1983 | Monitoring, Regular | Cadmium | — | Archived |
| June 25, 1982 – June 24, 1983 | Monitoring, Regular | Arsenic | — | Archived |
| June 25, 1982 – June 24, 1983 | Monitoring, Regular | Mercury | — | Archived |
| June 25, 1981 – June 24, 1982 | Monitoring, Regular | Selenium | — | Archived |
| June 25, 1981 – June 24, 1982 | Monitoring, Regular | Barium | — | Archived |
| June 25, 1981 – June 24, 1982 | Monitoring, Regular | Chromium | — | Archived |
| June 24, 1980 – June 23, 1981 | Monitoring, Regular | Fluoride | — | Archived |
| June 24, 1980 – June 23, 1981 | Monitoring, Regular | Chromium | — | Archived |
| June 24, 1980 – June 23, 1981 | Monitoring, Regular | Barium | — | Archived |
| June 24, 1980 – June 23, 1981 | Monitoring, Regular | Arsenic | — | Archived |
| June 24, 1980 – June 23, 1981 | Monitoring, Regular | Selenium | — | Archived |
| June 24, 1978 – June 23, 1981 | Monitoring, Regular | Methoxychlor | — | Archived |
| June 24, 1978 – June 23, 1981 | Monitoring, Regular | Endrin | — | Archived |
| June 24, 1978 – June 23, 1981 | Monitoring, Regular | 2,4,5-TP | — | Archived |
| June 24, 1978 – June 23, 1981 | Monitoring, Regular | 2,4-D | — | Archived |
| June 24, 1978 – June 23, 1981 | Monitoring, Regular | Toxaphene | — | Archived |
| June 24, 1978 – June 23, 1981 | Monitoring, Regular | BHC-GAMMA | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- July 22, 2024State Formal Notice of Violation issued126 linked violations
- February 6, 2023State Public Notification requested59 linked violations
Contact
MILLIKIN, DEBRA
973-208-6102
LAKE HOPATCONG, NJ 07849