F15/100
Cedar Grove Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 12,900 residents · New Jersey
What's In Cedar Grove's Tap Water?
69
Contaminants Tested
1
Exceed EPA Limits
1
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOA | 0.007 µg/L | 0.004 µg/L | Over Limit |
PFOS | 0.004 µg/L | 0.004 µg/L | Above Goal |
EPA Violation History
4
Violations (last 5yr)
2
Unresolved
3
Health-Related
TIER 3Unresolved
Disinfection byproduct treatment technique failure
TIER 2Unresolved
Public notification violation
When: July 1, 2024 – December 31, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Resolved
Public notification violation
When: January 1, 2023 – June 30, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Public notification violation
When: July 1, 2022 – December 31, 2022Rule: 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
CEDAR GROVE WATER DEPT
Population Served
12,900
Water Source
Purchased Surface Water
System ID
NJ0704001
Frequently Asked Questions About Cedar Grove Water
Is Cedar Grove tap water safe to drink?
Cedar Grove, New Jersey tap water receives a grade of F (15/100), which is considered failing. 1 contaminant(s) exceed EPA maximum contaminant levels and 62 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Cedar Grove's water?
Of the 69 contaminants tested in Cedar Grove's water supply, the most notable include PFOA, PFOS. 1 contaminant(s) exceed EPA legal limits (MCLs). 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Cedar Grove have any water quality violations?
Yes, Cedar Grove has 62 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, TT, MR. 3 of these are health-based violations, which are the most serious category.
Do I need a water filter in Cedar Grove?
Based on EPA data, using a water filter in Cedar Grove is recommended. 1 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 Cedar Grove's tap water come from?
Cedar Grove's drinking water is sourced from purchased surface water and supplied by CEDAR GROVE WATER DEPT. The system serves approximately 12,900 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Cedar Grove'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. Cedar Grove'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 Cedar Grove's water compare to other cities in New Jersey?
Cedar Grove's water quality score of 15/100 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 Cedar Grove's water quality?
If you have concerns about Cedar Grove'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 (CEDAR GROVE 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.