ZipCheckup grade for 18976: F.

Lowest grade in federal records; check your home directly.

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Water Quality Report
F 38

Warrington, PA (18976): PFAS Above 2029 MCL Level - 38/100

EPA data combined for 3 water systems mapped to this ZIP (largest mapped system: Nwwa Warrington Township)

PFAS Detected High County Radon Potential NFIP Claim History

EPA records for the water systems mapped to 18976 in Warrington, PA contain 35 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 0 are marked health-based.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Based on EPA Drinking Water FEMA Flood Data U.S. Census CDC Energy Information Admin. USGS Water Data & 9 more federal sources
Latest air quality, EPA records and weather alerts Current data temporarily unavailable
Current EPA violation data unavailable
Water records and current conditions
Current EPA violation data unavailable
Safety Score
F 38/100
Water Quality PFAS above MCL 35 non-health-based violation records in EPA data
Lead Risk Below action level 0.0006 mg/L, 90th percentile, sample period ending 2025-09-30
NFIP Claim History Claim records 131 claims
Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

  • Water EPA records for water systems mapped to this ZIP show 35 violations (non-health) (since 2021).
  • Lead The reported 90th-percentile lead result of 0.0006 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
  • PFAS At least one PFAS result is above an EPA MCL value (UCMR5 sampling; MCL compliance required from 2029).
  • Radon EPA Zone 1 - highest county-level potential. This is not a home measurement; test before any threshold comparison.
  • Flood 131 cumulative NFIP claim records. This historical count is not a current property-risk verdict.
Contaminant Summary
Violations on record (not health-based)
35 violations PFAS detected
Report data assembled: Jul 27, 2026 EPA water-system identity: source date or period is not present in ZipCheckup's accepted source record EPA violation history: more than two update cycles old Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record Consumer Confidence Report: source date or period is not present in ZipCheckup's accepted source record
F
ZIP-level Home Safety model score: 38 / 100
Bottom 1% of U.S. ZIP codes
3
Water Systems
21,588
People Served
0
Health Violations (since 2021)
Surface water
Water Source
0.0006 mg/L
Reported Lead ResultBelow the national median of system results
Zone 1
County Radon Potential · High
$502K
Median Home Value168% above state median ($187K)

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Score Breakdown

Overall Home Safety Score: 38/100

This is the published model score. Component and domain values are shown independently; they are not added together on this page.

Canonical components

EPA water compliance
30/100
Observed
PFAS MCL screen
0/100
Observed
EPA radon zone
0/100
Observed
Annual EPA AirData AQI
100/100
Observed

Required domains

Drinking water
15/100
Indoor environment
0/100
Outdoor environment
100/100

Coverage: 4 of 4 components and 3 of 3 domains observed.

Model 4.0.0; series home-safety-v4-cross-vertical.

Safety & Health (8) HIGH

Your Water System

ZIP code 18976 in Warrington, Pennsylvania is mapped to the water system Nwwa Warrington Township (EPA ID: PA1090070). This system provides water to approximately 21,588 people from surface water sources.

There are 3 community water systems serving this area.

Water Systems Serving This Area

System Name EPA ID Population Source
Nwwa Warrington Township PA1090070 21,588 Surface water
Warwick Twp Water & Sewer Authority PA1090127 14,699 Surface water
Dtma Main System PA1090128 8,655 Surface water

Other Water Quality Reports in Pennsylvania

Nearby Water Quality Reports

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Nwwa Warrington Township (PA1090070) on EPA.gov.

4 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.

📊 EPA Safe Drinking Water · View source →

PFAS Contamination Detected

PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 18976. One or more compound results are above the level of a federal PFAS MCL with compliance required from 2029.

Detected compounds: PFPeA, PFOA, PFOS, PFHxA, PFBS, PFBA, PFNA, PFHpA, PFHxS.

Highest measured level: 0.0172 µg/L

Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.

📊 EPA UCMR5 · View source →
Environmental Hazards (11) HIGH
Home & Infrastructure (8) MODERATE

Possible home maintenance concerns - talk to a local expert.

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Cost & Community (9) HIGH

CPSC product recall notices

These national notices are not matched to this ZIP code or water system.

View all recalls →

📊 CPSC · View source →

Protect Your Home in Warrington

Based on local data for ZIP 18976, these services may benefit homeowners in your area.

Based on local data for your area. Use the tools below to explore your options.

Home & Flood Insurance

The ZIP code for this report in Warrington has 131 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.

Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote

Check Your Flood Zone (Free)

FEMA flood map lookup - see if your property is in a flood zone

Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)

Gutter Installation & Repair

The median home in 18976 was built around 1980. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.

Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home

Estimate Your Home Maintenance Costs

Window Replacement

The median build year of homes in Warrington is 1980; check the age and condition of your own windows. ENERGY STAR windows can save $101–$583/year on energy bills.

Typical cost: Window replacement: typically $300–$800 per window installed

Estimate Your Home Maintenance Costs

Service recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.

Frequently Asked Questions

Is the tap water in 18976 safe to drink?

EPA SDWIS records 35 violations since 2021 across the water systems mapped to ZIP 18976 (primary system: Nwwa Warrington Township), including 0 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.

Where does 18976's water come from?

The recorded water source for Nwwa Warrington Township, a system mapped to ZIP code 18976, is Surface water. This system serves approximately 21,588 people.

How does Warrington water compare to the national average?

Warrington's Home Safety Score ranks lower than 99% of U.S. ZIP codes, and lower than 92% of ZIP codes within Pennsylvania.

How can I get my water tested in Warrington?

If Nwwa Warrington Township supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.

Is lead a concern in 18976 tap water?

The Lead and Copper Rule record selected for 18976 reports a 90th-percentile lead result of 0.0006 mg/L for a water system mapped to this ZIP (record date 2025-09-30). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.

What is the radon risk for 18976?

18976 is mapped to a county in EPA Radon Zone 1 (high county-level radon potential; EPA recommends testing every home), located in Bucks County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.

Are there PFAS (forever chemicals) in 18976's water?

Yes, PFAS have been detected in samples from water systems mapped to 18976. One or more PFAS results are above the level of a federal PFAS MCL with compliance required from 2029. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.

What does the NFIP claim history show for ZIP 18976?

FEMA records contain 131 flood insurance claims filed in ZIP code 18976; the recorded rated-zone value (the most frequent one if there are several claims) is X, which is claims evidence and may differ from the current FEMA map zone for a property. This is a substantial claim history, but claim count is not a count of distinct events or properties. Review FEMA's map for the specific property.

How to cite this page

APA ZipCheckup. (2026). Warrington, PA (18976): PFAS Above 2029 MCL Level - 38/100. https://zipcheckup.com/report/18976/
BibTeX
@misc{zipcheckup-report-18976,
  author = {{ZipCheckup}},
  title  = {{Warrington, PA (18976): PFAS Above 2029 MCL Level - 38/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/18976/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 18976

ZIP Code City, State Distance Grade Violations
18929 Jamison, PA 2.2 mi D 6
18974 Warminster, PA 3.6 mi F 273
18901 Doylestown, PA 4.1 mi F 42
19044 Horsham, PA 4.5 mi F 190
19040 Hatboro, PA 4.9 mi F 194
18925 Furlong, PA 5.0 mi F 46
18922 Forest Grove, PA 5.1 mi N/A 0
18914 Chalfont, PA 5.1 mi F 168
18936 Montgomeryville, PA 5.3 mi D 15
18931 Lahaska, PA 5.9 mi N/A 0

Contaminants Detected in 18976

Learn more about the contaminants found in your water supply:

Overall safety breakdown

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2026 Rankings

ZIP 18976 scores in the bottom tier nationally.

Coverage: 16/17 risk factors Data sources →
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