PlainWater

Orleans County, New York

SDWIS compliance plate

Sheet NY073 · Orleans County 23 sys · 437 viol · #131/3254

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

  • VIOL-SEVERE 82.6% flagged
  • HEALTH-LOW 6.4% health
  • RANK-TOP #131/3254
  • PHOTO-FINISH ±0.3 pp
  • PFAS-MID 25.0% detect
  • SRC-SW SW lead 91%
  • SYS-SMALL 23 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Onondaga County (+ 0.3 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Orleans County ranks #131 of 3,254 counties by people served, and #7 of 58 counties in New York. See methodology · corpus placement.

Orleans County standing, lower-flagged corpus third

Flagged-system rate 82.6% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 6.4% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 25.0% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #131 of 3,254 · #7 of 58 in New York.

Flagged-rate neighbourhood around Orleans County

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

0% 20% 40% 60% 80% 100% Niagara · lowest Suffolk · near Onondaga · near Cortland · highest 38.1% 79.6% 80.9% 82.6% 83% 84.6% 100%

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

Water Systems

System Name Population Violations PFAS
McWa 496,753 4 Clean
Medina Village 6,500 29 Clean
Albion Village 6,000 92 Clean
McWa Kendall Water District 3,000 0 -
Carlton Water District 2,800 2 -
Albion Town 2,725 2 -
Ridgeway Town WD 2,600 7 -
Clarendon Town Wds 2,482 19 Detected
Holley Village 2,150 156 -
Gaines Town Wds 1,898 3 -
Murray Town North Wds 1,564 17 -
Yates W.D. #4 1,525 2 -
Lyndonville Village 1,418 23 -
Barre Town Wds 1,220 4 -
Shelby Town Wds 1,200 26 -
Murray Town South Wds 949 16 -
Countyline Mobile Home Park, LLC 450 0 -
Murray W.D. #1 225 17 -
Yates W.D. #2 175 4 -
Ridgeway a W.D. 75 0 -
Kendall W.D. #6 50 9 -
Stillwater Mlc 30 0 -
Cottages at Troutburg 25 5 -

Compare beyond New York

Lower-flagged peers for Orleans County

Cross-state counties nearest Orleans County on flagged-system share (82.6%) and cumulative violation count (437). 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.