Pa American Water Company Butler
EPA ID: PA5100012 · 43,286 people served · 24 ZIP codes
While corrective steps may be in progress, Pa American Water Company Butler currently shows 5 EPA violations unresolved — serving a population of approximately 43,286.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Stable · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 2 (2021) to 10 (2025). Violation counts have remained relatively steady.
Service Area Map
Coverage area for Pa American Water Company Butler Source: EPA SDWIS service area boundaries.
Service area boundary — Grade C
Service Area Demographics
The Pa American Water Company Butler serves a community with a median household income of $73,527 and an estimated 167,324 residents across its service area. Approximately 69% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Pa American Water Company Butler's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
About 1% of homes in Butler County, Pennsylvania rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
Detected Contaminants
How Pa American Water Company Butler compares to EPA limits
What This Means For You
Haloacetic Acids (HAA5) at 2 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Selenium at 1 mg/L exceeds the EPA maximum of 0.05 mg/L. Hair & nail loss, nerve damage, liver & kidney damage. Consider reverse osmosis filtration.
Contaminant 0700 at 8 mg/L exceeds the EPA maximum of mg/L.
Revised Total Coliform Rule at 7 presence exceeds the EPA maximum of presence.
Copper at 2 mg/L exceeds the EPA maximum of 1.3 mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 28 detections recorded. 1 exceeds federal EPA limits (4 ppt for PFOA/PFOS).
Haloacetic Acids (HAA5) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
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Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Pa American Water Company Butler (EPA ID: PA5100012) is a community water system in Pennsylvania that serves approximately 43,286 people from surface water sources.
This system provides water to 24 ZIP codes across 18 communities.
Average Home Safety Score: C (57/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| October 1, 2025 | Stage 1 DBP Rule | Monitoring | Resolved |
| August 1, 2025 | Contaminant 0700 | Monitoring | Unresolved |
| July 1, 2025 | Haloacetic Acids (HAA5) | Monitoring | Resolved |
| July 1, 2025 | Revised Total Coliform Rule | Monitoring | Unresolved |
| July 1, 2025 | Surface Water Treatment Rule | Monitoring | Resolved |
| June 1, 2025 | Revised Total Coliform Rule | Monitoring | Resolved |
| June 1, 2025 | Contaminant 0700 | Monitoring | Resolved |
| May 1, 2025 | Revised Total Coliform Rule | Monitoring | Resolved |
| May 1, 2025 | Contaminant 0700 | Monitoring | Resolved |
| April 1, 2025 | Revised Total Coliform Rule | Monitoring | Resolved |
| April 1, 2025 | Contaminant 0700 | Monitoring | Resolved |
| March 1, 2025 | Contaminant 0700 | Monitoring | Resolved |
| March 1, 2025 | Revised Total Coliform Rule | Monitoring | Resolved |
| October 1, 2024 | Contaminant 0700 | Monitoring | Resolved |
| August 1, 2024 | Contaminant 0700 | Monitoring | Resolved |
| July 1, 2024 | Haloacetic Acids (HAA5) | Monitoring | Resolved |
| January 1, 2024 | Contaminant 1036 | Monitoring | Resolved |
| January 1, 2024 | Copper | Monitoring | Resolved |
| January 1, 2024 | Selenium | Monitoring | Unresolved |
| October 11, 2023 | Lead and Copper Rule | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Contaminant 0700 | Other Violation | 8 | No |
| Revised Total Coliform Rule | Microbiological | 7 | No |
| Copper | Inorganic | 2 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 2 | No |
| Selenium | Inorganic | 1 | No |
| Contaminant 1036 | Other Violation | 1 | No |
| Contaminant 1085 | Other Violation | 1 | No |
| Contaminant 2033 | Other Violation | 1 | No |
| Total Organic Carbon | Disinfection Byproducts | 1 | No |
| Gross Alpha | Radionuclides | 1 | No |
| Radium-228 | Radionuclides | 1 | No |
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
| Surface Water Treatment Rule | Treatment Failure | 1 | No |
| Lead and Copper Rule | Treatment Failure | 1 | No |
| Consumer Confidence Report Rule | Reporting Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 16001 | 0.016 mg/L | Yes | N/A |
| 16002 | 0.016 mg/L | Yes | N/A |
| 16103 | 0.002 mg/L | No | N/A |
| 16107 | 0.002 mg/L | No | N/A |
| 16108 | 0.002 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: 17 ZIP codes confirmed via EPA Community Water System Service Area Boundaries v3 plus 7 additional ZIPs inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
- 16001 — Butler
- 16002 — Butler
- 16023 — Cabot
- 16025 — Chicora
- 16027 — Connoquenessing
- 16029 — East Butler
- 16033 — Evans City
- 16037 — Harmony
- 16045 — Lyndora
- 16049 — Parker
- 16051 — Portersville
- 16052 — Prospect
- 16053 — Renfrew
- 16055 — Sarver
- 16056 — Saxonburg
- 16061 — West Sunbury
- 16063 — Zelienople
- 16101 — New Castle
- 16102 — New Castle
- 16103 — New Castle
- 16105 — New Castle
- 16107 — New Castle
- 16108 — New Castle
- 16160 — West Pittsburg
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Pa American Water Company Butler (PA5100012) on EPA.gov.
Frequently Asked Questions
Is Pa American Water Company Butler water safe to drink?
Pa American Water Company Butler has only monitoring/reporting violations, which are procedural in nature. The system meets federal health-based standards.
How many people does Pa American Water Company Butler serve?
Pa American Water Company Butler serves approximately 43,286 people across 24 ZIP codes in Pennsylvania.
Where does Pa American Water Company Butler get its water?
The primary water source is surface water.
Contact Your Water Utility
Public-record contact information for the water utility serving this system. Use these channels to request water quality reports, ask about service, or report issues directly.
Contact information from PA American Water Butler Consumer Confidence Report.
ZipCheckup is not affiliated with this water utility, does not act as its agent, and does not provide customer support for it. Contact details shown are public-record information from CCR filings. For service issues, contact the utility directly using the information above.
Water Source & Treatment
Where this water originates and how it's treated before reaching your tap.
Source: PA American Water Butler Consumer Confidence Report.
ZipCheckup is not affiliated with this water utility. Treatment and source data are sourced from the utility's published CCR filings.
PA DEP completed source water assessment for Butler and Ellwood Systems in 2003. Butler sources most vulnerable to transportation corridors, boating, auto repair shops, truck and bus terminals, utility substations or power plants, and runoff from non-point sources. Ellwood City source most vulnerable to transportation corridors, auto repair shops, truck and bus terminals, on-lot waste disposal, wastewater treatment plants, landfills, and runoff from non-point sources. Overall little to moderate risk of contamination.
Treatment regime
How this utility classifies its treatment process and what each reported treatment chemical does.
Treatment chemicals and what each one does
Chemical names are reported verbatim by the utility. Purpose categories are ZipCheckup annotations based on standard drinking-water treatment practice.
Watershed exposure sources reported
Land-use and natural conditions identified in the utility's source-water assessment as potential contamination sources upstream of treatment.
Treatment classification and chemical list sourced from PA American Water Butler Consumer Confidence Report.
Treatment intensity is a ZipCheckup-derived classification based on the chemicals and processes the utility reports. Chemicals and contamination sources are taken verbatim from the utility's CCR filing. Routine federal monitoring and contaminant testing shown elsewhere on this page determine whether the water meets safety standards, not the treatment classification.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
Interactive service line inventory map available at amwater.com/servicelineinventory. Lead and galvanized service lines will be replaced over time per new legislation.
Lead Service Line Replacement Tracker
This water utility's lead service line (LSL) replacement program is tracked from public Consumer Confidence Report filings. Email signup notifies subscribers when the utility files an updated replacement plan or progress milestone.
PA American Water Butler
ZipCheckup is not affiliated with this water utility. LSL replacement-program data is sourced from public CCR filings published by the utility. Subscription notifications are based on automated parsing of subsequent CCR releases.
Learn more about Lead and Copper Rule replacement requirements →
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.
Aesthetic water quality
These measurements describe the look, taste, and feel of the water this utility delivers. They are not contaminant violations — they sit alongside federal Secondary Maximum Contaminant Levels (SMCLs) which the EPA publishes as non-enforceable guidance.
Aesthetic measurements from PA American Water Butler Consumer Confidence Report.
Aesthetic measurements are reported by the utility from its annual sampling. EPA Secondary MCLs are advisory thresholds — values outside them indicate aesthetic concerns such as taste or appearance, not health violations. Federal contaminant testing is shown in the sections above.
Notable events and violations
This section summarizes events the utility chose to disclose in its most recent Consumer Confidence Report, plus any federal compliance violations the utility recorded against itself. Both lists are utility-authored — ZipCheckup does not audit, judge, or reorder them.
Notable events from the utility's CCR
These bullet entries are the utility's own narration of operational, regulatory, or infrastructure events during the reporting period.
- Butler Water Treatment Plant received 25-Year Directors Award from U.S. EPA Partnership for Safe Water Program
- Invested more than $722 million across PA state to upgrade water and wastewater treatment and pipeline systems
ZipCheckup note: items above reflect what the utility published in its most recent CCR. Federal violation records are also tracked separately by the EPA Safe Drinking Water Information System (SDWIS) — the SDWIS record is the authoritative federal source for any specific regulatory action.
Frequently Asked Questions
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Pa American Water Company Butler (EPA ID: PA5100012) — request the latest Consumer Confidence Report or ask about specific contaminants.