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Counties → New Jersey

Hunterdon County, New Jersey

SDWIS compliance plate

Sheet NJ019 · Hunterdon County 291 sys · 16,859 viol · #618/3254

VIOL-SEVERE · HEALTH-LOW · RANK-TOP · PHOTO-FINISH · PFAS-HIGH · SRC-GW · SYS-LARGE · BOOK-FULL

  • VIOL-SEVERE 96.2% flagged
  • HEALTH-LOW 14.7% health
  • RANK-TOP #618/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-HIGH 80.0% detect
  • SRC-GW GW lead 100%
  • SYS-LARGE 291 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Salem County (+ 0 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Hunterdon County ranks #618 of 3,254 counties by people served, and #20 of 21 counties in New Jersey. See methodology · corpus placement.

Hunterdon County standing, mid-flagged corpus third

Flagged-system rate 96.2% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 14.7% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 80.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #618 of 3,254 · #20 of 21 in New Jersey.

Flagged-rate neighbourhood around Hunterdon County

Lowest/highest poles plus in-state counties nearest Hunterdon County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Ocean · lowest Morris · near Salem · near Hudson · highest 91.1% 96% 96.1% 96.2% 96.2% 96.4% 100%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
Clinton W Dept 12,500 995 Detected
Flemington Water Department 4,581 846 Detected
Veolia Water New Jersey Lambertville 3,960 28 Clean
Washington Twp Mua-Hager 3,458 121 Detected
High Bridge W Dept 3,300 145 Detected
State of NJ Spruce Run Recreat 2,800 119 -
Glen Gardner W Dept 1,705 122 -
Voorhees High School 1,700 39 -
Milford W Dept 1,453 86 -
Hampton Borough Water Depart 1,401 74 -
NJ American Water - Frenchtown 1,373 281 -
Delaware Valley Regional 1,055 81 -
Exxonmobil Technology and Engineering Co 940 5 -
Edna Mahan Correctional 940 60 -
Aqua NJ - Califon 936 29 -
Verduccia Verducci Plaza 921 47 -
Bishop & Bishop (Well #2 895 6 -
Jersey Cider Works 810 13 -
Bishop & Bishop Well # 1 775 5 -
Bulls Island - Picnic 700 31 -
Hunterdon Hills Playhouse 666 71 -
Stockton Water Department 650 129 -
Readington Middle School 628 127 -
Aqua NJ - Riegel Ridge 621 22 -
Readington Middle School Well #2 620 50 -
Quick Check Food Store 620 19 -
YMCA Deer Path Park 595 23 -
South Hunterdon Regional Hs 589 60 -
Holland Brook School 575 9 -
Grayrock Village 566 56 -
Rambling Pines Day Camp 553 564 -
Copper Hill School 550 41 -
Lebanon Twp Sch - Valley View 540 34 -
Robert Hunter School 525 20 -
Speedway Service Station #03476 507 15 -
Dunkin Donuts 506 15 -
Bloomsbury Citco Gas & Go 505 8 -
The Corner Store 505 7 -
East Amwell School District 504 33 -
Polar-Cub 503 30 -
Delaware Township Mua 500 59 -
Am Best Co 500 179 -
Kingwood Township School 499 10 -
Woodglen Elementary School 490 11 -
Old Turnpike School 428 14 -
Clinton Station Diner 420 22 -
Pilot Travel Centers 414 80 -
Food Mart/Dunkin Donuts 404 44 -
Three Bridges School 404 37 -
Calvery Bible Church 402 3 -

Compare beyond New Jersey

Mid-flagged peers for Hunterdon County

Cross-state counties nearest Hunterdon County on flagged-system share (96.2%) and cumulative violation count (16,859). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers

Read our methodology · Check your water system - 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

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.