CITY REPORT MO

Alton, MO: 3 Violations - Home Safety Score unavailable

1 ZIP code · 1 water system · Updated

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
1
ZIPs with Violations
Zone 2
Radon Risk (Moderate)
$130K
Median Home Value
$400
Est. Remediation (0.3% of home value)

Alton Water: The Quick Version

  • Your city's water systems recorded 3 violations in the past 5 years.
  • Average lead level: 0.0019 mg/L.
  • Homes built before 1986: 53% - older plumbing may contain lead solder.
  • Estimated remediation: $400 per household.
  • CDC health risk index: 17.36 - above typical levels.

Water Systems Serving Alton

With one provider handling most of Alton's residential supply in MO, water service accountability is concentrated in a single utility among the 1 system on record.

Overview

We track home safety data for 1 ZIP code in Alton, Missouri, covering 1 community water system serving approximately 2,540 people. The EPA snapshots used for this build directly map water systems to 1 of 1 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.

Water Sources

Alton water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0019 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)

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 2 1
Haloacetic Acids (HAA5) Disinfection Byproducts 2 1
Stage 2 DBP Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
65606 3 0 Oregon County Pwsd 1

All ZIP Codes in Alton

Data Sources

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

CDC Health Data for Alton

11.1%
Asthma (US: 9.8%)
16.5%
Diabetes (US: 10.4%)
19.2%
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 16.5% ↑
Mental Health 19.2% ↑

Vertical line = national average. Above national · Below national

Key Contaminants Detected in Alton

Total Trihalomethanes (TTHM) 2 violations
Disinfection Byproducts · EPA limit: 0.08 mg/L
Increased cancer risk with long-term exposure
Haloacetic Acids (HAA5) 2 violations
Disinfection Byproducts · EPA limit: 0.06 mg/L
Increased cancer risk with long-term exposure
Stage 2 DBP Rule 2 violations
Treatment Technique
Disinfection byproduct exposure risk

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

How Old Is Alton's Housing Stock?

1987
Median Build Year
53%
Built Before 1986
25%
Built Before 1970
Copper
Likely Pipe Material

With 53% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

While newer cities carry lower aggregate plumbing risk from lead-era construction, Alton sits firmly in the older category. The median build year of 1987 indicates that more than half the housing stock was built before 1986, when lead solder was still legally used in residential copper plumbing - and a substantial portion likely predates 1970, when lead pipes were still commonly installed for service lines. These two thresholds together define the elevated plumbing risk environment that older housing cities carry, independent of what the municipal water supply delivers to the meter.

1987
Median Year Built
53%
Pre-1986 (Lead Paint Risk)
25%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (25%) 1970–1986 (28%) Post-1986 (47%)

Over half of homes in Alton were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Alton: Remediation Cost in Perspective

In Alton, documented water and safety issues can be addressed without making a meaningful dent in home equity - the financial proportionality here is favorable, and the commitment fits within standard property planning frameworks.

Median Home Value
$130,400
Est. Remediation
$400
Remediation as % of home value 0.3%

Remediation costs in Alton are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 26% below the Missouri average.

Protecting Children from Lead in Alton

53%
Homes Built Before 1986
0.0019
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.

Although utility-side compliance with federal Lead and Copper requirements remains the system reference, that compliance does not extend down into interior plumbing. With 53% of Alton stock built before the solder ban and aggregate readings at or beyond the action mark, a household-level sample becomes the practical way to close that information gap.

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

Frequently Asked Questions

How many water violations does Alton have?
Alton water systems have a total of 3 EPA violations. Violations are tracked across 1 ZIP code.
Does Alton water have lead?
The average 90th-percentile lead level in Alton is 0.0019 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 many water systems serve Alton?
Alton is served by 1 public water system across 1 ZIP code, serving approximately 2,540 people.
How much does it cost to fix water issues in Alton?
Estimated remediation costs in Alton average $400 per household, ranging from $0 to $800. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesMissouri → Alton, MO

How to cite this page

APA ZipCheckup. (2026). Alton, MO: 3 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/mo/alton/
BibTeX
@misc{zipcheckup-cities-mo-alton,
  author = {{ZipCheckup}},
  title  = {{Alton, MO: 3 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/mo/alton/}
}

Page version: August 2026.

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