Western Allegheny County Mun a
EPA ID: PA5020034 · 19,031 people served · 13 ZIP codes
Right now, Western Allegheny County Mun a shows 1 EPA violation marked active and unresolved — the provider continues to supply approximately 19,031 residents while each finding awaits closure.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Worsening · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 14 (2024) to 1 (2026). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Western Allegheny County Mun a Source: EPA SDWIS service area boundaries.
Service area boundary — Grade D
Service Area Demographics
The Western Allegheny County Mun a serves a community with a median household income of $94,930 and an estimated 84,164 residents across its service area. Approximately 77% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Western Allegheny County Mun a'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 Washington County, Pennsylvania rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Wastewater Proximity Note: This service area ranks in the 60th percentile nationally for proximity to wastewater discharge points. Surface water sources near wastewater outfalls may face additional treatment challenges.
Infrastructure Risk
Detected Contaminants
How Western Allegheny County Mun a compares to EPA limits
What This Means For You
Haloacetic Acids (HAA5) at 3 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Consumer Confidence Report Rule at 7 mg/L exceeds the EPA maximum of mg/L.
Lead and Copper Rule at 3 mg/L exceeds the EPA maximum of mg/L.
Contaminant 0700 at 2 mg/L exceeds the EPA maximum of mg/L.
E. coli at 2 Zero tolerance (any positive sample triggers immediate action) exceeds the EPA maximum of Zero tolerance (any positive sample triggers immediate action). Severe GI illness; potentially fatal kidney failure in children. Consider UV disinfection (99.99%) filtration.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 9 detections recorded. 4 exceed federal EPA limits (4 ppt for PFOA/PFOS). 1 exceeds state limits.
Haloacetic Acids (HAA5) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
Similar-sized systems in Pennsylvania
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
WESTERN ALLEGHENY COUNTY MUN A (EPA ID: PA5020034) is a community water system in Pennsylvania that serves approximately 19,031 people from surface water sources.
This system provides water to 13 ZIP codes across 13 communities.
Average Home Safety Score: D (47/100)
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 18, 2025 | Lead and Copper Rule | Monitoring | Resolved |
| September 7, 2025 | Consumer Confidence Report Rule | Health-based | Resolved |
| September 7, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| July 1, 2025 | Haloacetic Acids (HAA5) | Monitoring | Resolved |
| June 1, 2025 | Fecal Coliform | Monitoring | Resolved |
| April 1, 2025 | Haloacetic Acids (HAA5) | Monitoring | Resolved |
| January 1, 2025 | Fecal Coliform | Monitoring | Resolved |
| September 24, 2024 | Lead and Copper Rule | Monitoring | Resolved |
| August 20, 2024 | Consumer Confidence Report Rule | Health-based | Resolved |
| August 20, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| June 1, 2024 | Consumer Confidence Report Rule | Health-based | Resolved |
| March 11, 2024 | Lead and Copper Rule | Monitoring | Resolved |
| July 1, 2023 | Contaminant 0700 | Monitoring | Resolved |
| June 1, 2023 | Contaminant 0700 | Monitoring | Resolved |
| May 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| May 1, 2023 | Revised Total Coliform Rule | Monitoring | Resolved |
| May 1, 2023 | E. coli | Monitoring | Resolved |
| April 1, 2023 | Revised Total Coliform Rule | Monitoring | Resolved |
| February 1, 2023 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| January 1, 2023 | Contaminant 2959 | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting Failure | 7 | Yes |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 3 | No |
| Lead and Copper Rule | Treatment Failure | 3 | No |
| Contaminant 0700 | Other Violation | 2 | No |
| E. coli | Microbiological | 2 | No |
| Fecal Coliform | Microbiological | 2 | No |
| Revised Total Coliform Rule | Microbiological | 2 | No |
| Chlorite | Disinfection Byproducts | 1 | No |
| Contaminant 2959 | Other Violation | 1 | No |
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
| Surface Water Treatment Rule | Treatment Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
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: 5 ZIP codes confirmed via EPA Community Water System Service Area Boundaries v3 plus 8 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.
- 15004 — Atlasburg
- 15031 — Cuddy
- 15057 — Mc Donald
- 15060 — Midway
- 15071 — Oakdale
- 15082 — Sturgeon
- 15108 — Coraopolis
- 15126 — Imperial
- 15275 — Pittsburgh
- 15321 — Cecil
- 15340 — Hickory
- 15361 — Southview
- 15378 — Westland
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Western Allegheny County Mun a (PA5020034) on EPA.gov.
Frequently Asked Questions
Is Western Allegheny County Mun a water safe to drink?
Western Allegheny County Mun a has recorded 2 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
How many people does Western Allegheny County Mun a serve?
Western Allegheny County Mun a serves approximately 19,031 people across 13 ZIP codes in Pennsylvania.
Where does Western Allegheny County Mun a get its water?
The primary water source is surface water.
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.
Treatment classification and chemical list sourced from WESTERN ALLEGHENY COUNTY MUN A 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: Detected
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). PFAS compounds were detected below the current state-enforceable MCL.
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 →
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
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.
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
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
Western Allegheny County Mun a (EPA ID: PA5020034) — request the latest Consumer Confidence Report or ask about specific contaminants.