Hardyston Twp Water Quality
New Jersey
According to EPA SDWIS, Hardyston Twp, New Jersey is served by 2 community water systems covering about 2,732 people. The same extract lists 4 health-based violation records, most recently coded 5000 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Hardyston Twp, New Jersey is delivered through 2 EPA-regulated community water systems serving an estimated 2,732 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 4 violation records across the 2 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 2 distinct EPA contaminant codes: Lead and Copper Rule, Groundwater Rule.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the New Jersey drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| HARDYSTON TWP MUA | 1,963 | 0 | Clean |
| HARDYSTON TWP MUA | 769 | 4 | Health |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| HARDYSTON TWP MUA | Lead and Copper Rule | 2025-01-01 |
| HARDYSTON TWP MUA | Lead and Copper Rule | 2025-01-01 |
| HARDYSTON TWP MUA | Groundwater Rule | 2021-07-23 |
| HARDYSTON TWP MUA | Lead and Copper Rule | 2020-04-01 |
What are Hardyston Twp's health-based records for?
Hardyston Twp's health-based violation records carry 2 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Lead and Copper Rule | 3 | 1 |
| Groundwater Rule | 1 | 1 |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Hardyston Twp, New Jersey? ▼
How many water violations does Hardyston Twp have in this EPA extract? ▼
What contaminants were found in Hardyston Twp water? ▼
How many water systems serve Hardyston Twp? ▼
Where does Hardyston Twp get its drinking water? ▼
How does Hardyston Twp compare in New Jersey?
Of the 333 New Jersey places with at least one community water system on file, Hardyston Twp ranks #66 by number of systems (2).
Either side of it: Glen Gardner (2), Hackettstown (2), Haskell (2), Howell (2)
About This Data
Figures here are the current EPA SDWIS extract joined to the 2 community water systems whose service area lists Hardyston Twp, ranked against the 333 New Jersey places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.