Wentzville, MO: 12 Violations - Home Safety 75/100
1 ZIP code · 5 water systems · Updated
ZipCheckup grade for Wentzville: B.
This ZIP looks solid, with a few items worth a quick check.
Unlike many cities its size in MO, Wentzville keeps health-based violation rates low - systems here score at or above the state average for tap water safety, with no systemic concerns flagged in the current data set.
How Wentzville Compares
Data: EPA SDWIS
Key Facts for Wentzville Residents
- Your city's water systems recorded 12 violations in the past 5 years.
- Average lead level: 0.0048 mg/L.
- Homes built before 1986: 17% - older plumbing may contain lead solder.
- Estimated remediation: $2,100 per household.
- CDC health risk index: 11.99.
Wentzville's Water Providers
In Wentzville, MO, residential water supply is distributed across multiple utilities rather than concentrated in one. The 3 leading providers out of 5 tracked systems each control their own infrastructure, file separate EPA compliance reports, and set independent rate schedules.
- B
- B
- B
Overview
We track home safety data for 1 ZIP code in Wentzville, Missouri (population ~50,420), covering 5 community water systems serving approximately 176,721 people region-wide. 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.
Home Safety Score
Average Home Safety Score for Wentzville: B (75/100)
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
Wentzville water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0048 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 |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Technique | 6 | 1 |
| Contaminant 0700 | Other | 6 | 1 |
| Stage 2 DBP Rule | Treatment Technique | 4 | 1 |
| Consumer Confidence Report Rule | Reporting | 4 | 1 |
| Surface Water Treatment Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 63385 | B | 12 | 0 | St Charles County Pwsd 2 |
All ZIP Codes in Wentzville
- 63385 [B] - 12 violations
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Wentzville Community Health Snapshot
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
What's in Wentzville's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Wentzville Infrastructure Age
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
For most of Wentzville's housing stock, construction occurred after 1986 - when lead solder in plumbing was federally prohibited. The median build year of 2004 broadly reflects that newer profile.
Most homes in Wentzville were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Wentzville
Low proportionality - that's the Wentzville picture when remediation costs are placed against typical home equity.
Remediation costs in Wentzville are relatively low compared to home values. The $1,100–$3,400 estimated range is a small fraction of median property value. Home values are 83% above the Missouri average.
Wentzville: Lead Risk & Vulnerable Populations
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.
Once federal rules removed lead-bearing solder from new plumbing, building practice changed quickly. Wentzville now carries just 17% of older inventory from that earlier era. Citywide readings remain compliant, though no system-level number can replace a one-home draw.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Wentzville: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Wentzville contains 13 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $22,250. 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>$2,100</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.
Deep Dive Reports
Detailed analysis for Wentzville, MO