PlainWater
Counties → New Jersey

Union County, New Jersey

Water Systems
7
Population Served
778,855
Total Violations
855
105 health-based
PFAS Detected
3
of 3 tested

Violation Analysis

100.0%
Systems with Violations
122.1
Avg Violations per System
12.3%
Health-Based Violations

Water Source Types

SW
4 systems (57%)
GW
3 systems (43%)

PFAS Contamination

3
Systems Tested
3
PFAS Detected
100.0%
Detection Rate

PFAS (per- and polyfluoroalkyl substances) are persistent chemicals found in drinking water. The EPA has set enforceable limits for several PFAS compounds under UCMR5 monitoring.

Compliance Snapshot

Union New Jersey water systems by violation status, EPA SDWIS records.

No violations on record (0) One or more violations (7)

Violation history is cumulative, many flagged systems have already returned to compliance. Detail pages show per-system context.

Water Systems

System Name Population Violations PFAS
NJ American Water - Raritan 615,430 601 Detected
NJ American Water - Liberty 134,000 80 Detected
Rahway Water Department 27,300 65 Detected
Winfield Mutual Housing 1,600 60 -
Crest View Club Corp 250 17 -
Crestview Swim Club 250 22 -
Cranford Swim & Tennis Club 25 10 -

Other Counties in New Jersey

Bergen County
49 systems · 1,133,521 served · 6,905 violations
Essex County
25 systems · 889,677 served · 4,186 violations
Ocean County
214 systems · 721,554 served · 10,195 violations
Monmouth County
285 systems · 715,264 served · 9,403 violations
Burlington County
293 systems · 674,987 served · 19,188 violations
Middlesex County
35 systems · 668,615 served · 2,949 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Union County? ▼
Union County has 855 total drinking water violations across 7 water systems, of which 105 are health-based violations. 100.0% of systems have at least one violation.
How many people get water from Union County systems? ▼
Water systems in Union County serve approximately 778,855 people through 7 public water systems.
Has PFAS been detected in Union County water? ▼
Of 3 water systems tested for PFAS in Union County, 3 had PFAS detected (100.0% detection rate).
What types of water sources supply Union County? ▼
Water systems in Union County use SW (4 systems), GW (3 systems) as their primary water sources.
Are health-based violations serious? ▼
Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 12.3% of Union County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
Data Sources & Methodology

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). PFAS testing data from the UCMR5 monitoring program. SDWIS tracks all public water systems regulated under the Safe Drinking Water Act.

Violations are categorized as health-based (Maximum Contaminant Level exceedances, treatment technique failures) or monitoring/reporting violations. Not all violations indicate an immediate health risk.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.