D30/100
Mount Arlington Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 9,373 residents · New Jersey
What's In Mount Arlington's Tap Water?
31
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.009 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2025 – July 16, 2025Enforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 11, 2022 – August 17, 2022Rule: Total Coliform 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
MOUNT ARLINGTON DPW KADEL SYS
Population Served
1,053
Water Source
Purchased Groundwater
System ID
NJ1426002
MOUNT ARLINGTON BORO DPW MAIN
Population Served
1,978
Water Source
Purchased Groundwater
System ID
NJ1426005
WHARTON WATER DEPT
Population Served
6,342
Water Source
Groundwater
System ID
NJ1439001
Frequently Asked Questions About Mount Arlington Water
Is Mount Arlington tap water safe to drink?
Mount Arlington, New Jersey tap water receives a grade of D (30/100), which is considered poor. 1 contaminant(s) exceed EPA maximum contaminant levels and 177 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Mount Arlington's water?
Of the 32 contaminants tested in Mount Arlington's water supply, the most notable include Copper (90th percentile), Lead (90th percentile). 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 Mount Arlington have any water quality violations?
Yes, Mount Arlington has 177 EPA violation(s) on record, with the most recent in 2025. Violation types include RPT, MON, Other. 7 of these are health-based violations, which are the most serious category.
Do I need a water filter in Mount Arlington?
Based on EPA data, using a water filter in Mount Arlington 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 Mount Arlington's tap water come from?
Mount Arlington's drinking water is sourced from purchased groundwater and supplied by MOUNT ARLINGTON DPW KADEL SYS and 2 other water system(s). The system serves approximately 9,373 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Mount Arlington'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. Mount Arlington'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 Mount Arlington's water compare to other cities in New Jersey?
Mount Arlington's water quality score of 30/100 earns a grade of D, which is considered poor. 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 Mount Arlington's water quality?
If you have concerns about Mount Arlington'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 (MOUNT ARLINGTON DPW KADEL SYS) 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.