Public water system record
Denville Twp Water Dept
Serves an area of Morris County, NJ · 15,881 people served
Federal records show no health-based violations and 54 monitoring/reporting issues for Denville Twp Water Dept in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 54
Key facts
- Denville Twp Water Dept draws water from 5 wells.
- Record on file since 1991, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 4,580 unknown out of 5,996 service lines.
Check whether Denville Twp Water Dept serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Styrene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
ETHYLENE DIBROMIDE
Monitoring and reporting
|
Jan 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
|
Jan 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Styrene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Radium-228
Monitoring and reporting
|
Jan 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Radium-226
Monitoring and reporting
|
Jan 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jan 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Combined Uranium
Monitoring and reporting
|
Jan 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Jan 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Oct 1, 2019 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Oct 1, 2019 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Revised Total Coliform Rule
RPT
|
Jan 11, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
CYANIDE
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
Full record since 1991
EPA's records for Denville Twp Water Dept go back to 1991. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 321 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 290 |
| 2000s | 0 | 2 |
| 2010 to October 18, 2016 | 0 | 29 |
| October 19, 2016 to 2019 | 0 | 5 |
| 2020s | 0 | 49 |
Most recent health-based violation before October 19, 2016: Tetrachloroethylene, began January 1993, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Tetrachloroethylene
Contaminant limit exceeded
|
Jan 1, 1993 | Resolved |
Where the water comes from
Denville Twp Water Dept draws water from 5 wells. It also buys water from Morris County MUA. 1 other public water system has an emergency connection to Denville Twp Water Dept.
Buys water from
- Morris County MUA Randolph Twp, NJ
Annual water quality report
Denville Twp Water Dept must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by New Jersey.
Certified drinking water labs by state EPA guidance for private wells