Water Quality in DENVILLE, NJ (07834)
EPA violation data for public water systems serving ZIP code 07834.
96
Total Violations
4
Health-Based
92
Monitoring / Reporting
92
Resolved
What does this mean?
92 of 96 violations have been resolved. 4 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 92 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.
Violations Detail (96 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Lead and Copper Rule | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | N/A |
| Tetrachloroethylene | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Liver problems; increased risk of cancer |
| Vinyl chloride | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Increased risk of cancer |
| Xylenes, Total | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Xylenes, Total | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Carbon tetrachloride | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Liver problems; increased risk of cancer |
| Carbon tetrachloride | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Liver problems; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
Lead & Copper Levels
Violation Timeline
2025(2)
Lead and Copper Rule
66
Lead and Copper Rule
66
2023(44)
Tetrachloroethylene
03
Vinyl chloride
03
Xylenes, Total
03
Xylenes, Total
03
Carbon tetrachloride
03
Carbon tetrachloride
03
Benzene
03
Benzene
03
1,2,4-Trichlorobenzene
03
Styrene
03
Styrene
03
trans-1,2-Dichloroethylene
03
trans-1,2-Dichloroethylene
03
1,1,2-Trichloroethane
03
1,1,2-Trichloroethane
03
Trichloroethylene
03
cis-1,2-Dichloroethylene
03
cis-1,2-Dichloroethylene
03
DICHLOROMETHANE
03
DICHLOROMETHANE
03
o-Dichlorobenzene
03
o-Dichlorobenzene
03
p-Dichlorobenzene
03
p-Dichlorobenzene
03
1,1-Dichloroethylene
03
1,1-Dichloroethylene
03
CHLOROBENZENE
03
CHLOROBENZENE
03
Ethylbenzene
03
Ethylbenzene
03
Trichloroethylene
03
Tetrachloroethylene
03
1,2-Dichloroethane
03
1,2-Dichloroethane
03
1,1,1-Trichloroethane
03
1,1,1-Trichloroethane
03
1,2-Dichloropropane
03
1,2-Dichloropropane
03
Toluene
03
Toluene
03
1,2,4-Trichlorobenzene
03
Vinyl chloride
03
Lead and Copper Rule
66
Lead and Copper Rule
66
How Does This Compare?
DENVILLE (07834) has 96 recorded violations, including 4 health-based. 4 remain unresolved. Consider testing your tap water independently for added peace of mind.
Recommended Water Filters
Based on the contaminants detected in your area, these filter types may help improve your water quality.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove.