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Counties → New York

Allegany County, New York

SDWIS compliance plate

Sheet NY003 · Allegany County 78 sys · 6,609 viol · #1200/3254

VIOL-SEVERE · HEALTH-LOW · RANK-UPPER · PHOTO-FINISH · PFAS-MID · SRC-GW · SYS-MID · BOOK-FULL

  • VIOL-SEVERE 94.9% flagged
  • HEALTH-LOW 8.2% health
  • RANK-UPPER #1200/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-MID 33.3% detect
  • SRC-GW GW lead 86%
  • SYS-MID 78 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Allegany County ranks #1,200 of 3,254 counties by people served, and #48 of 58 counties in New York. See methodology · corpus placement.

Allegany County standing, mid-flagged corpus third

Flagged-system rate 94.9% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 8.2% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 33.3% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #1,200 of 3,254 · #48 of 58 in New York.

Flagged-rate neighbourhood around Allegany County

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

0% 20% 40% 60% 80% 100% Niagara · lowest Essex · near Allegany · this county Cortland · highest 38.1% 94.1% 94.2% 94.3% 94.9% 94.9% 100%

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

Water Systems

System Name Population Violations PFAS
Wellsville Village Public Water 5,700 30 Detected
Alfred State College 3,600 78 Clean
Alfred University 2,800 27 -
Belmont Village Public Water 2,400 245 -
Houghton Water District 2,000 85 -
Cuba Village Public Water 1,800 72 -
Bolivar-Richburg Water System 1,640 62 -
Friendship Town Water District 1,380 86 Clean
Alfred Village Water Supply 1,300 45 -
Andover Village Public Water 1,130 459 -
Scio Water District 990 58 -
Angelica Village Public Water 950 30 -
Alfred-Almond Central School 925 17 -
Canaseraga Village Public Water 900 935 -
Belfast Water District 850 110 -
Hume Water District 695 76 -
Stannards Water, Inc. 499 54 -
Almond Village Public Water 480 236 -
Whitesville Water District 475 216 -
Swain Resort 350 37 -
Rush Creek Swim Area 300 16 -
Cartwrights Maple Tree Inn 255 13 -
Moonwinks Restaurant 225 34 -
Sun Valley Campsites 220 13 -
Trout Run Resort 200 453 -
Breezy Point Campsite 200 54 -
Allegany County Water District #1 200 24 -
Saputo Dairy Foods USA, LLC 180 107 -
The Sierra Inn 150 60 -
2 Sisters and a Smoker, LLC 148 73 -
Sunny Hill Campsite 140 14 -
Jones Pond Campground, Inc. 135 27 -
The Old Mill 125 10 -
Windy Hills Campground 120 16 -
Cuba Overseas V.F.W. Post 2721 113 14 -
Birdsall Inn 109 69 -
Bolivar Golf Club 100 32 -
The Park at Rushford Lake 100 19 -
Evergreen Trails Campsites 100 33 -
Shorts Grocery Store & Station 100 63 -
Just One More 90 44 -
Allegheny Hills Restaurant 90 10 -
Houghton-Letchworth KOA 82 22 -
Ryan Road Development 75 5 -
Hindu Swayamsevaksangh-USA (Hss) 75 10 -
Dawny Jeans 75 17 -
Rushford Resort 70 9 -
Kings View Motel 67 10 -
Deer Run Campground 60 3 -
Alfred Tech - Lake Lodge 60 28 -

Compare beyond New York

Mid-flagged peers for Allegany County

Cross-state counties nearest Allegany County on flagged-system share (94.9%) and cumulative violation count (6,609). 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.