ZipCheckup grade for 62258: C.

A mixed picture - some signals here are worth your attention.

Your top priority: use a filter certified to reduce PFAS; check which ones. Check your ZIP → EPA PFAS info

Water Quality Report
C 60

Mascoutah, IL (62258): PFAS Detected in Mapped Water Systems - 60/100

EPA data combined for 8 water systems mapped to this ZIP (largest mapped system: Mascoutah)

PFAS Detected

EPA records for the water systems mapped to 62258 in Mascoutah, IL contain 17 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
C 60/100
Water Quality PFAS above MCL 17 non-health-based violation records in EPA data
Lead Risk Below action level 0.0046 mg/L, 90th percentile, sample period ending 2025-12-31
NFIP Claim History Claim records 15 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 17 violations (non-health) (since 2021).
  • Lead The reported 90th-percentile lead result of 0.0046 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 2 - county-level radon potential, not a home measurement.
  • Flood 15 cumulative NFIP claim records. Claim evidence is historical, not current map coverage.
Contaminant Summary
Violations on record (not health-based)
17 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
C
ZIP-level Home Safety model score: 60 / 100
Bottom 19% of U.S. ZIP codes
8
Water Systems
8,759
People Served
0
Health Violations (since 2021)
Surface water
Water Source
0.0046 mg/L
Reported Lead Result2.0× the national median for this measure
Zone 2
County Radon Potential · Moderate
$230K
Median Home Value56% above state median ($147K)

Get updates when new water-quality data is available for your area

Free alerts when new EPA data affects ZIP code 62258. No spam - just safety updates.

Unsubscribe anytime. We only send updates when your safety score changes. See our Privacy Policy.

Share Your Area Home Safety Score
Share on X Share on Facebook

Tip: You can also screenshot the card above to share it as an image.

See incorrect data? Let us know

Score Breakdown

Overall Home Safety Score: 60/100

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
62/100
Observed
PFAS MCL screen
0/100
Observed
EPA radon zone
50/100
Observed
Annual EPA AirData AQI
100/100
Observed

Required domains

Drinking water
31/100
Indoor environment
50/100
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 62258 in Mascoutah, Illinois is mapped to the water system Mascoutah (EPA ID: IL1630800). This system provides water to approximately 8,759 people from surface water sources.

There are 8 community water systems serving this area.

Water Systems Serving This Area

System Name EPA ID Population Source
Mascoutah IL1630800 8,759 Surface water
Marissa IL1630750 1,921 Surface water
S L M Water Commission IL1635090 385 Surface water
Il American-east St Louis IL1635040 131,368 Surface water
Lebanon IL1630650 4,714 Surface water

Other Water Quality Reports in Illinois

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 Mascoutah (IL1630800) on EPA.gov.

5 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 62258. One or more compound results are above the level of a federal PFAS MCL with compliance required from 2029.

Detected compounds: PFBA, PFOS, PFHxA, PFPeA.

Highest measured level: 0.0181 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) MODERATE
Home & Infrastructure (6) OK
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 Mascoutah

Based on local data for ZIP 62258, 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 Mascoutah has 15 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 62258 was built around 1986. 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

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 62258 safe to drink?

EPA SDWIS records 17 violations since 2021 across the water systems mapped to ZIP 62258 (primary system: Mascoutah), 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 62258's water come from?

The recorded water source for Mascoutah, a system mapped to ZIP code 62258, is Surface water. This system serves approximately 8,759 people.

How does Mascoutah water compare to the national average?

Mascoutah's Home Safety Score ranks lower than 81% of U.S. ZIP codes, and lower than 83% of ZIP codes within Illinois.

How can I get my water tested in Mascoutah?

If Mascoutah 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 62258 tap water?

The Lead and Copper Rule record selected for 62258 reports a 90th-percentile lead result of 0.0046 mg/L for a water system mapped to this ZIP (record date 2025-12-31). 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 62258?

62258 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in St. Clair 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 62258's water?

Yes, PFAS have been detected in samples from water systems mapped to 62258. 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 62258?

FEMA records contain 15 flood insurance claims filed in ZIP code 62258; 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. Claim records do not establish current property risk. Review FEMA's map for the specific property.

How to cite this page

APA ZipCheckup. (2026). Mascoutah, IL (62258): PFAS Detected in Mapped Water Systems - 60/100. https://zipcheckup.com/report/62258/
BibTeX 
@misc{zipcheckup-report-62258,
  author = {{ZipCheckup}},
  title  = {{Mascoutah, IL (62258): PFAS Detected in Mapped Water Systems - 60/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/62258/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 62258

ZIP Code City, State Distance Grade Violations
62224 Mascoutah, IL 1.1 mi N/A 0
62266 New Memphis, IL 5.8 mi N/A 13
62225 Scott Air Force Base, IL 6.1 mi B 2
62265 New Baden, IL 6.5 mi N/A 19
62243 Freeburg, IL 8.4 mi C 8
62282 Saint Libory, IL 8.7 mi N/A 0
62289 Summerfield, IL 8.7 mi N/A 0
62269 O Fallon, IL 8.9 mi B 5
62254 Lebanon, IL 9.1 mi B 5
62215 Albers, IL 9.9 mi N/A 13

Contaminants Detected in 62258

Learn more about the contaminants found in your water supply:

Overall safety breakdown

Home Safety Score →

Find the right water filter

Water Filter Matcher →

Compare filters, tests & services

Compare My Options →

Compare with another ZIP

Compare Tool →
Coverage: 15/17 risk factors Data sources →
Get alerts for 62258