PlainWater
Counties → Pennsylvania

Butler County, Pennsylvania

Water Systems
182
Population Served
159,830
Total Violations
24,329
1,270 health-based
PFAS Detected
5
of 8 tested

Violation Analysis

91.8%
Systems with Violations
133.7
Avg Violations per System
5.2%
Health-Based Violations

Water Source Types

GW
43 systems (24%)
SW
7 systems (4%)

PFAS Contamination

8
Systems Tested
5
PFAS Detected
62.5%
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

Butler Pennsylvania 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
PA American Water Co Butler 43,286 9 Clean
Cranberry Twp WTP 42,000 58 Clean
Slippery Rock Muni Auth 15,778 173 Clean
Municipal Water Auth Adams Twp 8,700 115 Clean
Harmony Boro Water Auth 6,669 422 Detected
Zelienople Boro 4,123 307 Detected
Petroleum Valley Rwa 3,800 25 -
Seven Fields Boro Water Dept 3,100 90 -
Slippery Rock Campground Assn 2,360 36 -
Iron Mountain 2,000 208 -
Moraine Camplands 2,000 32 -
Evans City Borough 1,990 702 -
Mars Borough Water Works 1,956 519 -
Moraine State Park Water Syst 1,200 846 -
Chicora Boro Water Supply 1,100 179 -
Pilot Travel Center 1,100 174 -
Concordia Lutheran Home 950 151 -
Coopers Lake Campground 750 106 -
Dassa McKinney Elem School 650 152 -
St Wendelin Church & School 620 114 -
Moniteau JR/SR High School 600 298 -
A C Valley Development Corp 500 785 -
Lake Arthur Estates 460 172 -
Loves Travel Stop 731 430 0 -
Moraine Elementary School 424 392 -
Cranberry Village MHP 400 50 -
Brady Hills Ml 400 271 -
Penn United Tech 340 662 -
Sandy Hill Estates 325 364 -
Acords Dairy Queen 300 48 -
Smithgrove Campground 300 35 -
Camp Lutherlyn Main Shaulis 300 33 -
R C Mens Club 300 23 -
Camp Bucoco Moraine Trails 250 12 -
Autumn Grove Care Center 240 101 -
Crestfield Camp & Conf Ctr 240 75 -
Marion Twp WTP 225 345 -
Portersville Christian 221 34 -
Coral Ridge Estates MHP 200 414 -
Suncrest Golf Course 200 9 -
Starlight Drivein 200 44 -
St Lukes School 200 219 -
Fair Winds 182 567 -
Rolling Valley Estates 180 254 -
Bernies Mobile Home Park 170 362 -
Adams Mfg Plant 2 160 388 -
Chicora Medical Center 150 126 -
Stoneworth Apts WTP 150 835 -
Calvary Orth Presby Church 150 30 -
Camp Redwing 150 38 -

Other Counties in Pennsylvania

Allegheny County
69 systems · 2,014,752 served · 5,241 violations
Philadelphia County
6 systems · 1,601,175 served · 447 violations
Montgomery County
172 systems · 1,274,688 served · 36,032 violations
Bucks County
299 systems · 599,107 served · 59,577 violations
Lancaster County
434 systems · 406,457 served · 39,193 violations
York County
208 systems · 389,602 served · 25,528 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Butler County? ▼
Butler County has 24,329 total drinking water violations across 182 water systems, of which 1,270 are health-based violations. 91.8% of systems have at least one violation.
How many people get water from Butler County systems? ▼
Water systems in Butler County serve approximately 159,830 people through 182 public water systems.
Has PFAS been detected in Butler County water? ▼
Of 8 water systems tested for PFAS in Butler County, 5 had PFAS detected (62.5% detection rate).
What types of water sources supply Butler County? ▼
Water systems in Butler County use GW (43 systems), SW (7 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. 5.2% of Butler 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.