PlainWater

Union County, New Jersey

SDWIS compliance plate

Sheet NJ039 · Union County 7 sys · 855 viol · #83/3254

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

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-LOW 12.3% health
  • RANK-TOP #83/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-HIGH 100.0% detect
  • SRC-SW SW lead 57%
  • SYS-TINY 7 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Union County ranks #83 of 3,254 counties by people served, and #3 of 21 counties in New Jersey. See methodology · corpus placement.

Union County standing, mid-flagged corpus third

Flagged-system rate 100.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 12.3% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 100.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #83 of 3,254 · #3 of 21 in New Jersey.

Flagged-rate neighbourhood around Union County

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

0% 20% 40% 60% 80% 100% Ocean · lowest Bergen · near Hudson · highest 91.1% 98% 98% 100% 100% 100%

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

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 -

Compare beyond New Jersey

Mid-flagged peers for Union County

Cross-state counties nearest Union County on flagged-system share (100.0%) and cumulative violation count (855). 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
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.