Water Quality Report

Monticello, MO (63457): 15 Violations Recorded for Mapped Water Systems

EPA data combined for 3 water systems mapped to this ZIP (largest mapped system: Lewis County Pwsd 1)

PFAS Detected

EPA records for the water systems mapped to 63457 in Monticello, MO contain 15 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 N/A
Water Quality Concerns 15 non-health-based violation records in EPA data
Lead Risk Below action level 0.0015 mg/L, 90th percentile, sample period ending 2025-12-31
NFIP Claim History Claim records 2 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 15 violations (non-health) (since 2021).
  • Lead The reported 90th-percentile lead result of 0.0015 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
  • PFAS PFAS detected in UCMR5 sampling; see the PFAS section for each compound, compared with the federal PFAS MCL where one exists.
  • Radon EPA Zone 2 - county-level radon potential, not a home measurement.
  • Flood 2 cumulative NFIP claim records. Claim evidence is historical, not current map coverage.
Contaminant Summary
Violations on record (not health-based)
15 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
3
Water Systems
1,700
People Served
0
Health Violations (since 2021)
Surface water
Water Source
0.00155 mg/L
Reported Lead Result
Zone 2
County Radon Potential · Moderate
$180K
Median Home Value11% above state median ($162K)

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Score Breakdown

Overall Home Safety Score: Score unavailable

Required evidence is missing. Missing values remain unknown and are not imputed or renormalized.

Canonical components

EPA water compliance
58/100
Observed
PFAS MCL screen
100/100
Observed
EPA radon zone
50/100
Observed
Annual EPA AirData AQI
Unknown
Evidence missing

Required domains

Drinking water
79/100
Indoor environment
50/100
Outdoor environment
Unknown

Coverage: 3 of 4 components and 2 of 3 domains observed.

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

Safety & Health (6) HIGH

Your Water System

ZIP code 63457 in Monticello, Missouri is mapped to the water system Lewis County Pwsd 1 (EPA ID: MO2024335). This system provides water to approximately 1,700 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
Lewis County Pwsd 1 MO2024335 1,700 Surface water
Clark County Cons Pwsd 1 MO2024138 7,140 Groundwater
Knox County Public Water & Sewer District 1 MO2024313 3,947 Surface water

Other Water Quality Reports in Missouri

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 Lewis County Pwsd 1 (MO2024335) 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 63457.

Detected compounds: PFBA.

Highest measured level: 0.0087 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 (6) OK
Cost & Community (7) 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 Monticello

Based on local data for ZIP 63457, 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 Monticello has 2 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 63457 was built around 1985. 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

Roofing Inspection & Repair

Active weather alerts in Missouri increase the risk of roof damage from hail and high winds. A professional inspection can identify vulnerabilities.

Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500

Estimate Your Home Insurance Needs

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 63457 safe to drink?

EPA SDWIS records 15 violations since 2021 across the water systems mapped to ZIP 63457 (primary system: Lewis County Pwsd 1), 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 63457's water come from?

The recorded water source for Lewis County Pwsd 1, a system mapped to ZIP code 63457, is Surface water. This system serves approximately 1,700 people.

How can I get my water tested in Monticello?

If Lewis County Pwsd 1 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 63457 tap water?

The Lead and Copper Rule record selected for 63457 reports a 90th-percentile lead result of 0.00155 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 63457?

63457 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in Lewis 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 63457's water?

Yes, PFAS have been detected in samples from water systems mapped to 63457. 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 63457?

FEMA records contain 2 flood insurance claims filed in ZIP code 63457. Claim records do not establish current property risk. Review FEMA's map for the specific property.

How to cite this page

APA ZipCheckup. (2026). Monticello, MO (63457): 15 Violations Recorded for Mapped Water Systems. https://zipcheckup.com/report/63457/
BibTeX 
@misc{zipcheckup-report-63457,
  author = {{ZipCheckup}},
  title  = {{Monticello, MO (63457): 15 Violations Recorded for Mapped Water Systems}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/63457/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 63457

ZIP Code City, State Distance Grade Violations
63452 Lewistown, MO 5.9 mi N/A 16
63440 Ewing, MO 8.5 mi N/A 16
63435 Canton, MO 8.8 mi N/A 15
63473 Williamstown, MO 9.8 mi N/A 2
63447 La Belle, MO 10.8 mi N/A 15
63438 Durham, MO 11.0 mi N/A 16
63448 La Grange, MO 11.6 mi N/A 7
63454 Maywood, MO 13.8 mi N/A 16
63446 Knox City, MO 15.7 mi N/A 10
63458 Newark, MO 16.3 mi N/A 10

Contaminants Detected in 63457

Learn more about the contaminants found in your water supply:

Overall safety breakdown

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Coverage: 13/17 risk factors Data sources →
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