US Water Score: D
| Contaminant | Detected Level | EPA MCL | Health Guideline | Status |
|---|---|---|---|---|
| Lead |
1.0
|
15 ppb | 1 ppb | Passed |
UCMR5 occurrence results are screening information, not a finding of regulatory compliance or noncompliance. PFAS rules and compliance dates are evolving.
| Compound | Level | EPA MCL | Health Guideline | Status |
|---|---|---|---|---|
| PFPeA | 28.5 ppt | No standard | — | No federal MCL shown |
| PFOS | 23.0 ppt | 4 ppt | 4 ppt | Above comparison value |
| PFOA | 19.6 ppt | 4 ppt | 4 ppt | Above comparison value |
| PFHxA | 17.5 ppt | No standard | 400 ppt | No federal MCL shown |
| PFBA | 16.2 ppt | No standard | 500 ppt | No federal MCL shown |
| PFBS | 14.9 ppt | 2000 ppt | 100 ppt | Below comparison value |
| PFNA | 12.0 ppt | 10 ppt | 10 ppt | Above comparison value |
| PFHpA | 8.6 ppt | No standard | — | No federal MCL shown |
Water Quality Summary
Tap water quality in Warminster, Pennsylvania (18974) receives an overall grade of D (Elevated record-based concern) with a score of 46 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 18 points below the Pennsylvania state average of 64. Compared to the national average (75), this area scores significantly lower. The area is served by 5 water systems providing water to approximately 822,600 people, using surface water sources. Notably, 3 PFAS compounds exceed the EPA final MCL value used for comparison — a significant concern given the persistent nature of these chemicals. Over the past 5 years, water systems here have accumulated 151 violations, including 6 health-based violations.
A score of 46/100 flags significant system-level concerns in the US Water Score model for Warminster, PA. These may include violations, contaminant levels near or above regulatory limits, or PFAS detections. Review the detailed records, your utility's Consumer Confidence Report, and qualified local guidance.
Health Information
Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.
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.
Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.
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.
Common Questions
Tap water in Warminster, Pennsylvania receives a grade of D (Elevated record-based concern) with a score of 46/100. 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 18974 is served by 5 water systems using surface water sources, providing water to approximately 822,600 people. Surface water systems are more susceptible to contamination from agricultural runoff, industrial discharge, and weather events, but typically undergo more extensive treatment including filtration and disinfection.
Lead levels in Warminster, Pennsylvania are 1.0 ppb, which is at or below the health guideline of 1 ppb. This is a positive result, though periodic testing is still recommended.
Yes — 9 PFAS compounds were detected in records associated with water serving Warminster, Pennsylvania, and 3 results exceeded the numerical EPA MCL value used for comparison. UCMR5 occurrence results alone are not a regulatory compliance determination. PFAS rules and compliance timelines are evolving; verify current information with the utility and EPA.
Water systems serving Warminster, Pennsylvania have received 151 violations in the last 5 years, including 6 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 (PFAS), residents in Warminster, 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