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Counties → New York

Cattaraugus County, New York

Water Systems
148
Population Served
66,030
Total Violations
5,265
443 health-based
PFAS Detected
1
of 4 tested

Violation Analysis

91.2%
Systems with Violations
35.6
Avg Violations per System
8.4%
Health-Based Violations

Water Source Types

GW
45 systems (30%)
SW
5 systems (3%)

PFAS Contamination

4
Systems Tested
1
PFAS Detected
25.0%
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

Cattaraugus New York water systems by violation status, EPA SDWIS records.

No violations on record (1) One or more violations (49)

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
Olean City 14,500 8 Clean
Salamanca City 5,815 362 Detected
Asp - Red House Water Supply 4,030 8 Clean
Asp - Barton & Weller Trail 4,025 4 Clean
Gowanda Village 2,800 217 -
Allegany Village 2,000 81 -
Allegany Mountain Resort 1,950 4 -
Allegany Town District #8 (St. Bonas) 1,850 18 -
Franklinville Village 1,760 275 -
Randolph Town Water District 1,738 50 -
Ellicottville Town Water District 1,420 15 -
Little Valley Village 1,188 343 -
Cattaraugus Village 1,185 72 -
Delevan Village 1,090 47 -
Portville Village 1,040 105 -
Yorkshire Town Water District #1 900 5 -
Allegany-Limestone School 855 14 -
Ellicottville Central School 800 26 -
Machias Town Water District 700 61 -
Arrowhead Camping Area 700 23 -
South Dayton Village 661 25 -
Emerald Acres 600 0 -
Perrysburg Town Central Water District 584 144 -
Twin Lakes Mobile Homes 550 66 -
Catt-Alleg Boces Center at Ellicottville 500 5 -
Asp - Quaker Lake Bathhouse 500 1 -
Allegany Town Consolidated District #1 480 20 -
Carrollton Limestone Town Water District 459 38 -
Ashford West Valley Town Water District 410 4 -
Valley View Estates 404 19 -
Catt-Alleg Boces Center at Olean 400 137 -
Hinsdale Town Water District 350 64 -
Olean Town Water District 350 16 -
Sandusky Water Supply 336 12 -
Great Valley Town W.D. #2 (Sno-Pine) 320 16 -
Colonial Village 300 17 -
Onoville Marina Park 300 4 -
Camp Scouthaven 300 6 -
Camp Timbercrest 300 10 -
West Valley Demonstration Project 300 13 -
Camp Li-Lo-Li 275 15 -
Allegany Town Comprehensive WD (2008) 274 22 -
Triple R Campground 270 3 -
Circle C Ranch 250 11 -
Green Valley Estates 250 6 -
Lazy Acres Campground 240 1 -
Great Valley Town W.D. #1 230 8 -
Conewango Town Water District 217 4 -
Bear Creek Lake Resort 200 21 -
Portville Drive-IN 200 18 -

Other Counties in New York

Richmond County
1 systems · 8,271,000 served · 47 violations
Suffolk County
152 systems · 1,387,905 served · 3,402 violations
Nassau County
44 systems · 1,387,489 served · 7,471 violations
Westchester County
274 systems · 992,853 served · 15,832 violations
Erie County
108 systems · 955,615 served · 7,606 violations
Onondaga County
88 systems · 615,889 served · 2,561 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Cattaraugus County? ▼
Cattaraugus County has 5,265 total drinking water violations across 148 water systems, of which 443 are health-based violations. 91.2% of systems have at least one violation.
How many people get water from Cattaraugus County systems? ▼
Water systems in Cattaraugus County serve approximately 66,030 people through 148 public water systems.
Has PFAS been detected in Cattaraugus County water? ▼
Of 4 water systems tested for PFAS in Cattaraugus County, 1 had PFAS detected (25.0% detection rate).
What types of water sources supply Cattaraugus County? ▼
Water systems in Cattaraugus County use GW (45 systems), SW (5 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. 8.4% of Cattaraugus 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.