Hardyston Twp, New Jersey Water Quality Report
Water quality data for 2 water systems serving 2,732 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (21)
66
Apr 1, 2025
66
Dec 30, 2024
66
Sep 29, 2024
66
Mar 31, 2024
48
Jul 23, 2021
48
Jul 23, 2021
48
Jul 23, 2021
48
Jul 23, 2021
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (344)
71
Jul 1, 2025
71
Jul 1, 2025
71
Jul 1, 2025
71
Jul 1, 2025
59
Jan 1, 2025 — Jun 30, 2025
+ 339 more resolved violations
Frequently Asked Questions
Is Hardyston Twp tap water safe to drink?
Hardyston Twp's water meets all EPA maximum contaminant levels. However, 0 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Hardyston Twp tap water?
0 contaminants have been detected in Hardyston Twp's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Hardyston Twp?
Install a water filter rated for the specific contaminants found in Hardyston Twp's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Hardyston Twp have any water quality violations?
Yes, Hardyston Twp currently has 21 active violations. See the violations section above for details.