F0/100
East Hanover Township Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 11,393 residents · New Jersey
What's In East Hanover Township's Tap Water?
67
Contaminants Tested
2
Exceed EPA Limits
1
Above EPA Goals
3 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOA | 0.006 µg/L | 0.004 µg/L | Over Limit |
PFOS | 0.004 µg/L | 0.004 µg/L | Over Limit |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
8
Violations (last 5yr)
2
Unresolved
1
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: October 1, 2024 – November 15, 2024Enforcement: Resolving — corrective action underway
TIER 3Unresolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2024 – December 31, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved
Public notification violation
When: July 1, 2024 – December 31, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2023 – June 30, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2022 – June 30, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: October 1, 2021 – November 29, 2021Enforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2021 – November 29, 2021Enforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2021 – December 31, 2021Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
EAST HANOVER TWP WATER DEPT
Population Served
11,393
Water Source
Purchased Surface Water
System ID
NJ1410001
Frequently Asked Questions About East Hanover Township Water
Is East Hanover Township tap water safe to drink?
East Hanover Township, New Jersey tap water receives a grade of F (0/100), which is considered failing. 2 contaminant(s) exceed EPA maximum contaminant levels and 124 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in East Hanover Township's water?
Of the 67 contaminants tested in East Hanover Township's water supply, the most notable include PFOA, PFOS, Lead (90th percentile). 2 contaminant(s) exceed EPA legal limits (MCLs). 3 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does East Hanover Township have any water quality violations?
Yes, East Hanover Township has 124 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, MR, TT. 8 of these are health-based violations, which are the most serious category.
Do I need a water filter in East Hanover Township?
Based on EPA data, using a water filter in East Hanover Township is recommended. 2 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does East Hanover Township's tap water come from?
East Hanover Township's drinking water is sourced from purchased surface water and supplied by EAST HANOVER TWP WATER DEPT. The system serves approximately 11,393 people. Surface water sources include rivers, lakes, and reservoirs.
How often is East Hanover Township's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. East Hanover Township's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does East Hanover Township's water compare to other cities in New Jersey?
East Hanover Township's water quality score of 0/100 earns a grade of F, which is considered failing. This is a concerning score that suggests significant water quality issues. Visit our New Jersey state page to see how all cities in the state compare.
What should I do if I'm concerned about East Hanover Township's water quality?
If you have concerns about East Hanover Township's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (EAST HANOVER TWP WATER DEPT) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.