F
30

Failing Water Quality

Coatesville, PA 19320

Chester County · Population served: 915,455 · Data updated March 2026

Water Systems Serving This Area

🌊
TAYLORS MOBILE HOME PARK
Groundwater · Pop. 50
PWSID: PA1150015
🏔
AQUA PA UWCHLAN
Surface water · Pop. 35,518
PWSID: PA1150035
🏔
AQUA PA SPRING RUN
Surface water · Pop. 8,151
PWSID: PA1150089
🏔
APPLEVILLE MOBILE HOME PARK
Surface water · Pop. 461
PWSID: PA1150094
🏔
PA AMERICAN COATESVILLE
Surface water · Pop. 36,960
PWSID: PA1150106

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
3.9
15 ppb 1 ppb Warning
Copper
4205.0
1300 ppb 300 ppb Exceeded

PFAS / Forever Chemicals

34 detected 9 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFPeA21.8 pptNo standardUnregulated
PFHxA17.2 pptNo standard400 pptUnregulated
PFOA12.6 ppt4 ppt4 pptExceeded
PFNA12.0 ppt10 ppt10 pptExceeded
PFBA10.1 pptNo standard500 pptUnregulated
PFOS9.5 ppt4 ppt4 pptExceeded
PFBS9.5 ppt2000 ppt100 pptBelow limit
PFOA9.3 ppt4 ppt4 pptExceeded

Violation History (Last 5 Years)

189Total (5yr)
8Health-Based
135Major

Water Quality Summary

Understanding Your Water in Coatesville

Tap water quality in Coatesville, Pennsylvania (19320) receives an overall grade of F (Failing) with a score of 30 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 33 points below the Pennsylvania state average of 63. Compared to the national average (75), this area scores significantly lower. The area is served by 15 water systems providing water to approximately 915,455 people, using surface water and groundwater sources. Testing has found elevated levels of Lead, Copper that warrant attention. Notably, 9 PFAS compounds exceed EPA limits — a significant concern given the persistent nature of these chemicals. Over the past 5 years, water systems here have accumulated 189 violations, including 8 health-based violations.

Your Score 30/100 F
vs State 33 pts below Pennsylvania avg (63)
vs National 45 pts below national avg (75)

What a Grade F Means

A score of 30/100 indicates serious water quality failures in Coatesville, PA. The water system has significant violations, contaminant exceedances, or enforcement actions. Residents should strongly consider using a certified water filtration system for drinking and cooking water, requesting their utility's latest test results, and potentially having their water independently tested.

Surface water: sourced from rivers, lakes, or reservoirs
Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

⚠️

Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

🔶

Copper in Your Water

Copper can leach into water from copper plumbing, especially in newer homes or when water is acidic.

Health Effects

Short-term exposure above 1,300 ppb can cause gastrointestinal distress. Long-term exposure may cause liver or kidney damage. People with Wilson's disease are especially vulnerable.

Common Sources

Copper pipes, fittings, and faucets are the most common source. Corrosive (low-pH) water accelerates copper leaching.

What You Can Do

If copper levels are elevated, flush pipes by running water for 15–30 seconds before use. Reverse osmosis and distillation systems effectively remove copper.

Common Questions

Frequently Asked Questions

Tap water in Coatesville, Pennsylvania receives a grade of F (Failing) with a score of 30/100. This indicates significant water quality concerns based on violation history, contaminant levels, or enforcement actions. We recommend reviewing the specific contaminants detected below and considering a certified water filter.

ZIP code 19320 is served by 15 water systems using surface water, groundwater sources, providing water to approximately 915,455 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Lead was detected at 3.9 ppb in Coatesville, Pennsylvania. While this is below the EPA action level of 15 ppb, it exceeds the health guideline of 1 ppb recommended by health organizations. Consider a certified lead filter, especially if you have young children.

Yes — 34 PFAS compounds were detected in water serving Coatesville, Pennsylvania, and 9 exceed EPA maximum contaminant levels. PFAS are persistent chemicals linked to cancer, immune system effects, and developmental issues. A reverse osmosis or activated carbon filter certified for PFAS removal is recommended.

Water systems serving Coatesville, Pennsylvania have received 189 violations in the last 5 years, including 8 health-based violations. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Based on detected contaminants (lead, PFAS, copper), residents in Coatesville, Pennsylvania should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

Explore Nearby

Water Quality in Nearby ZIP Codes