PlainWater
Counties → New Jersey

Warren County, New Jersey

Water Systems
225
Population Served
109,996
Total Violations
9,973
2,406 health-based
PFAS Detected
2
of 5 tested

Violation Analysis

95.1%
Systems with Violations
44.3
Avg Violations per System
24.1%
Health-Based Violations

Water Source Types

GW
48 systems (21%)
SW
2 systems (1%)

PFAS Contamination

5
Systems Tested
2
PFAS Detected
40.0%
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

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

No violations on record (2) One or more violations (48)

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
Aqua NJ - Phillipsburg 26,686 103 Clean
Hackettstown Mua 22,000 206 Clean
NJ American Water - Washington/Oxford 10,719 75 Detected
Allamuchy Twp Water & Sewer 5,423 76 Detected
NJ American Water - Belvidere 2,854 20 -
Alpha Municipal Water Works 2,530 455 -
Acme Shopping Plaza 1,550 30 -
Land of Make Believe 1,506 46 -
Quick Chek #5 1,417 33 -
No Warren Reg High Sch 1,200 33 -
Delaware Water Gap Travel Plaza 1,150 17 -
Travel Centers of America 1,070 90 -
Belvidere Shopping Plaza 953 53 -
McDonalds of Clinton 842 57 -
Mansfield Twp Elementary 820 178 -
Dunkin Donuts 814 13 -
McDonalds - Columbia 810 12 -
Township of Blairstown Dpw 800 61 -
D S M Nutritional Products Inc 636 152 -
Mamma Maria 515 108 -
White Township Dunkin Donuts 513 0 -
Hope Tree Dunkin Donuts 507 11 -
Del River Family Cmp Grn 506 20 -
Mobil/7-Eleven 506 148 -
Njdot Route 80 Rest Area 500 75 -
Warren Haven Rehabilitation & Nursing CT 430 59 -
Lakeland Plaza 418 12 -
Oakwood Bowling Lanes & Sports 412 16 -
White Twp Consolidated School 410 92 -
Kittatinny Visitor Center 403 54 -
Warren Co Library-Cdh Branch 358 25 -
Harmony Twp Elementary School 353 14 -
Camp No-Be-Bo-Sco 350 24 -
Camp No Be Bo Sco (Shower Well) 350 10 -
Veolia Water NJ Independence Highland 350 13 -
Great Meadows Middle 348 63 -
Oxford Furnace Lake 310 47 -
Country View Village, LLC 310 120 -
Dept of Interior/Delaware Water Gap Nra 305 41 -
Sunmart Sunoco Station & Convenience Sto 303 12 -
Mansfield Twp Municipal Comple 295 44 -
Fountain Mall 282 84 -
Hope Twp Elementary School 279 93 -
Rite Aid Corp 268 145 -
Independence Centralschool 260 38 -
Rdj Service 258 0 -
Belvidere Regional Pool 257 50 -
Island Dragway 255 17 -
Worthington State Park 250 43 -
Knowlton Twp Elementary 250 8 -

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
Union County
7 systems · 778,855 served · 855 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

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Warren County? ▼
Warren County has 9,973 total drinking water violations across 225 water systems, of which 2,406 are health-based violations. 95.1% of systems have at least one violation.
How many people get water from Warren County systems? ▼
Water systems in Warren County serve approximately 109,996 people through 225 public water systems.
Has PFAS been detected in Warren County water? ▼
Of 5 water systems tested for PFAS in Warren County, 2 had PFAS detected (40.0% detection rate).
What types of water sources supply Warren County? ▼
Water systems in Warren County use GW (48 systems), SW (2 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. 24.1% of Warren 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.