CITY REPORT IL

Mascoutah, IL: 17 Violations - Home Safety 60/100

2 ZIP codes · 5 water systems · Updated

ZipCheckup grade for Mascoutah: C.

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

In recent monitoring cycles, Mascoutah tap water shows a mixed record for IL - several systems have documented violations alongside areas with clean compliance histories.

How Mascoutah Compares

Mascoutah60/100
Illinois avg68/100
National avg73/100

Data: EPA SDWIS

2
ZIP Codes
5
Water Systems
1
ZIPs with Violations
C · 60
Avg Safety Score
Zone 2
Radon Risk (Moderate)
$230K
Median Home Value
$1,300
Est. Remediation (0.6% of home value)

Mascoutah Water: The Quick Version

  • Your city's water systems recorded 17 violations in the past 5 years.
  • Average lead level: 0.0122 mg/L.
  • Estimated remediation: $1,300 per household.
  • CDC health risk index: 13.66 - above typical levels.

Water Systems Serving Mascoutah

Water supply in Mascoutah, IL follows a divided structure: 3 utilities account for the largest share of residential service out of 5 total systems, each managing its own distribution network and EPA reporting. Because these systems operate independently, rate decisions and compliance outcomes are determined separately.

Overview

We track home safety data for 2 ZIP codes in Mascoutah, Illinois (population ~10,292), covering 5 community water systems serving approximately 147,147 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 2 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Mascoutah: C (60/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Mascoutah water systems draw from: Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0122 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 2 (Moderate Risk)

  • Zone 1 (High): 0 ZIP codes
  • Zone 2 (Moderate): 2 ZIP codes
  • Zone 3 (Low): 0 ZIP codes

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Total Trihalomethanes (TTHM) Disinfection Byproducts 10 1
Haloacetic Acids (HAA5) Disinfection Byproducts 10 1
Stage 1 DBP Rule Treatment Technique 4 1
Surface Water Treatment Rule Treatment Technique 4 1
Contaminant 2037 Other 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
62258 C 17 0 Mascoutah

All ZIP Codes in Mascoutah

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

CDC Health Data for Mascoutah

11.1%
Asthma (US: 9.8%)
13.1%
Diabetes (US: 10.4%)
16.9%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 11.1% ↑
Diabetes 13.1% ↑
Mental Health 16.9% ↑

Vertical line = national average. Above national · Below national

Key Contaminants Detected in Mascoutah

Total Trihalomethanes (TTHM) 10 violations
Disinfection Byproducts · EPA limit: 0.08 mg/L
Increased cancer risk with long-term exposure
Haloacetic Acids (HAA5) 10 violations
Disinfection Byproducts · EPA limit: 0.06 mg/L
Increased cancer risk with long-term exposure
Stage 1 DBP Rule 4 violations
Treatment Technique
Disinfection byproduct exposure risk

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Mascoutah: Remediation Cost in Perspective

Within the Mascoutah market, estimated remediation claims a small portion of typical property equity - the financial burden is proportionally low.

Median Home Value
$229,500
Est. Remediation
$1,300
Remediation as % of home value 0.6%

Remediation costs in Mascoutah are relatively low compared to home values. The $600–$2,100 estimated range is a small fraction of median property value. Home values are 25% above the Illinois average.

Protecting Children from Lead in Mascoutah

0.0122
mg/L Avg Lead (Limit: 0.015)

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Lead risk in Mascoutah appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical Flood-Claim Evidence for Mascoutah

15
Total FEMA Flood Claims
$8,495
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Mascoutah contains 15 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $8,495. Among ZIP codes with claim records, 0% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$1,300</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

What You Can Do in Mascoutah

  1. Test your water at home. City-level data shows averages - your tap may differ. Lead testing is especially recommended given the area's lead levels.
  2. Install a certified water filter. Filters rated for Total Trihalomethanes (TTHM) can reduce the most common contaminant found in Mascoutah's water.
  3. Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.

Frequently Asked Questions

What does the Home Safety Score mean for Mascoutah, IL?
Mascoutah has an average Home Safety Score of 60/100 (Grade C) under model 4.0.0. The score combines EPA SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the PFAS MCL screen, EPA radon zone, and annual EPA AQI, and is published only when all required domains are observed. 17 EPA violations have been recorded. Check individual ZIP code reports for component details.
How many water violations does Mascoutah have?
Mascoutah water systems have a total of 17 EPA violations. Violations are tracked across 2 ZIP codes.
Does Mascoutah water have lead?
The average 90th-percentile lead level in Mascoutah is 0.0122 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How does Mascoutah compare to Illinois average?
Mascoutah has an average Home Safety Score of 60/100, which is below the Illinois state average of 68/100 for the same model series.
How many water systems serve Mascoutah?
Mascoutah is served by 5 public water systems across 2 ZIP codes, serving approximately 10,292 people.
How much does it cost to fix water issues in Mascoutah?
Estimated remediation costs in Mascoutah average $1,300 per household, ranging from $600 to $2,100. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesIllinois → Mascoutah, IL

How to cite this page

APA ZipCheckup. (2026). Mascoutah, IL: 17 Violations - Home Safety 60/100. https://zipcheckup.com/cities/il/mascoutah/
BibTeX
@misc{zipcheckup-cities-il-mascoutah,
  author = {{ZipCheckup}},
  title  = {{Mascoutah, IL: 17 Violations - Home Safety 60/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/il/mascoutah/}
}

Page version: August 2026.

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