MAHWAH, NJ · Bergen County
MAHWAH WATER DEPARTMENT Water System
Consumer Confidence Report status
MAHWAH WATER DEPARTMENT must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for MAHWAH WATER DEPARTMENT.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)
- NJ0233001
- System type
- Community Water System
- Population served
- 26,777
- Service connections
- 8,775
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
MAHWAH WATER DEPARTMENT is one of 154 community water systems in New Jersey in the 10,001 to 100,000 people size category, serving 26,777 people from surface water.
As of August 1, 2026, its federal record holds 11 entries between 2015 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.
All 11 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals, the Lead and Copper Rule, and inorganic chemicals.
Violation history
Monitoring, Regular
—Toluene
January 1, 2023 – July 11, 2025
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2023 – July 11, 2025
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2023 – July 11, 2025
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2023 – July 11, 2025
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2023 – July 11, 2025
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 2023 – July 11, 2025
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2023 – July 11, 2025
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2023 – July 11, 2025
ResolvedWater Quality Parameter M/R
—Lead and Copper Rule
July 1, 2020 – December 3, 2020
ResolvedWater Quality Parameter M/R
—Lead and Copper Rule
January 1, 2019 – February 20, 2019
ResolvedMonitoring, Regular
—Nitrate
January 1, 2015 – August 4, 2015
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 1, 2023 – July 11, 2025 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2023 – July 11, 2025 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2023 – July 11, 2025 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2023 – July 11, 2025 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2023 – July 11, 2025 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2023 – July 11, 2025 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 2023 – July 11, 2025 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2023 – July 11, 2025 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| July 1, 2020 – December 3, 2020 | Water Quality Parameter M/R | Lead and Copper Rule | — | Resolved |
| January 1, 2019 – February 20, 2019 | Water Quality Parameter M/R | Lead and Copper Rule | — | Resolved |
| January 1, 2015 – August 4, 2015 | Monitoring, Regular | Nitrate | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- November 7, 2012State Public Notification requested87 linked violations
Common questions
Is MAHWAH WATER DEPARTMENT required to publish a Consumer Confidence Report?
- Yes. MAHWAH WATER DEPARTMENT is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is MAHWAH WATER DEPARTMENT’s next Consumer Confidence Report due?
- MAHWAH WATER DEPARTMENT’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MAHWAH WATER DEPARTMENT have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for MAHWAH WATER DEPARTMENT.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
VANDERBEEK, BRIAN
201-529-4413
MAHWAH, NJ 07430