Pa American Coatesville
EPA ID: PA1150106 · 36,960 people served · 12 ZIP codes
2 open EPA findings remain on record at Pa American Coatesville — the utility supplies approximately 36,960 people.
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 4 (2022) to 1 (2026). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Pa American Coatesville Source: EPA SDWIS service area boundaries.
Service area boundary — Grade D
Service Area Demographics
The Pa American Coatesville serves a community with a median household income of $88,852 and an estimated 162,233 residents across its service area. Approximately 64% 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 Coatesville'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 Lancaster County, Pennsylvania rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Superfund Proximity Note: This service area ranks in the 69th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
Detected Contaminants
How Pa American Coatesville compares to EPA limits
What This Means For You
Contaminant 1009 at 1 mg/L exceeds the EPA maximum of 0.004 mg/L. Intestinal damage, bone damage. Consider reverse osmosis filtration.
Haloacetic Acids (HAA5) at 1 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Contaminant 0700 at 10 mg/L exceeds the EPA maximum of mg/L.
Consumer Confidence Report Rule at 5 mg/L exceeds the EPA maximum of mg/L.
Lead and Copper Rule at 3 mg/L exceeds the EPA maximum of mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 31 detections recorded. 9 exceed federal EPA limits (4 ppt for PFOA/PFOS).
Contaminant 1009 was detected in this water system. reverse osmosis filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
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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 Coatesville (EPA ID: PA1150106) is a community water system in Pennsylvania that serves approximately 36,960 people from surface water sources.
This system provides water to 12 ZIP codes across 12 communities.
Average Home Safety Score: D (51/100)
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 |
|---|---|---|---|
| July 1, 2025 | Haloacetic Acids (HAA5) | Monitoring | Unresolved |
| July 1, 2025 | Surface Water Treatment Rule | Monitoring | Unresolved |
| May 1, 2025 | Contaminant 0700 | Monitoring | Resolved |
| January 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| November 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| October 1, 2024 | Copper | Monitoring | Resolved |
| July 1, 2024 | Haloacetic Acids (HAA5) | Monitoring | Unresolved |
| July 1, 2024 | Surface Water Treatment Rule | Monitoring | Resolved |
| January 1, 2024 | Total Organic Carbon | Monitoring | Resolved |
| November 13, 2023 | Lead and Copper Rule | Monitoring | Resolved |
| November 1, 2023 | Contaminant 0700 | Health-based | Resolved |
| October 1, 2023 | Gross Alpha | Monitoring | Resolved |
| August 1, 2023 | Contaminant 0700 | Monitoring | Resolved |
| August 1, 2023 | Fecal Coliform | Monitoring | Resolved |
| August 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| May 1, 2023 | Contaminant 1009 | 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 | 10 | Yes |
| Consumer Confidence Report Rule | Reporting Failure | 5 | No |
| Lead and Copper Rule | Treatment Failure | 3 | No |
| Gross Alpha | Radionuclides | 2 | No |
| Surface Water Treatment Rule | Treatment Failure | 2 | No |
| Contaminant 1009 | Other Violation | 1 | No |
| Copper | Inorganic | 1 | No |
| Contaminant 2383 | Other Violation | 1 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 1 | No |
| Contaminant 2959 | Other Violation | 1 | No |
| Total Organic Carbon | Disinfection Byproducts | 1 | No |
| Stage 1 DBP Rule | Treatment Failure | 1 | Yes |
| Fecal Coliform | Microbiological | 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: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by PA or modeled from parcel and building-footprint data.
- 17509 — Christiana
- 17527 — Gap
- 17562 — Paradise
- 17566 — Quarryville
- 19310 — Atglen
- 19320 — Coatesville
- 19335 — Downingtown
- 19344 — Honey Brook
- 19358 — Modena
- 19365 — Parkesburg
- 19367 — Pomeroy
- 19372 — Thorndale
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Pa American Coatesville (PA1150106) on EPA.gov.
Frequently Asked Questions
Is Pa American Coatesville water safe to drink?
Pa American Coatesville has recorded 3 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 Pa American Coatesville serve?
Pa American Coatesville serves approximately 36,960 people across 12 ZIP codes in Pennsylvania.
Where does Pa American Coatesville 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 Pennsylvania American Water - Coatesville 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: Pennsylvania American Water - Coatesville 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 in 2003. Water supplies considered vulnerable to transportation corridors and stormwater runoff. DEP ranked susceptibility high because water supplies are above ground and exposed. Brandywine Creek is tributary of Christina River, flowing into Delaware River Bay.
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 Pennsylvania American Water - Coatesville 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 →
PFAS Substances Detected in This System
This water system's Consumer Confidence Report disclosed the following PFAS compounds. Levels are from the utility's most recent reporting cycle.
In April 2024, EPA finalized the first National Primary Drinking Water Regulation for six PFAS. Public water systems have until 2029 to comply. EPA — PFAS regulation overview →
Source: Consumer Confidence Report disclosed by Pennsylvania American Water - Coatesville.
ZipCheckup is not affiliated with this water utility. PFAS detection data is sourced from public Consumer Confidence Reports filed by the utility itself.
Interactive service line inventory map available at https://www.amwater.com/servicelineinventory. Lead and galvanized service lines to be replaced over time per Lead and Copper Rule Revisions (2021).
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.
Pennsylvania American Water - Coatesville
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 Pennsylvania American Water - Coatesville 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.
- E. coli detected in July 2025 (1 sample), but additional sampling confirmed no violation of E. coli MCL.
- Lead 90th percentile = 2 ppb (below AL of 15 ppb). 1 of 31 sites exceeded action level. Compliance achieved.
- Coatesville/Rock Run WTP nationally recognized by US EPA Partnership for Safe Drinking Water — 5-Year Directors Award.
- Pennsylvania American Water invested >$722 million statewide in 2024 for water/wastewater upgrades.
- PFAS (PFBS and PFPeA) detected via UCMR4 monitoring in 2024 at low ppt levels, well below EPA MCL effective 2029.
- HAA5 highest value 67 ppb exceeds MCL of 60 ppb in range but highest LRAA = 38 ppb, compliance achieved.
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.
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
Pa American Coatesville (EPA ID: PA1150106) — request the latest Consumer Confidence Report or ask about specific contaminants.