Marthasville, MO - Home Safety Score unavailable
1 ZIP code · 5 water systems · Updated
Data: EPA SDWIS
Marthasville Water: The Quick Version
- Your city's water systems recorded 57 violations in the past 5 years.
- Average lead level: 0.0039 mg/L.
- Homes built before 1986: 49% - older plumbing may contain lead solder.
- Estimated remediation: $1,600 per household.
- CDC health risk index: 14.28 - above typical levels.
Water Systems Serving Marthasville
Marthasville, MO draws its residential water from 3 separate providers among the 5 federally tracked systems. Each operates independently, with its own infrastructure, rate structure, and compliance record.
Overview
We track home safety data for 1 ZIP code in Marthasville, Missouri (population ~6,593), covering 5 community water systems serving approximately 104,479 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. 1 health-based violation appear in the available health breakdown.
Water Sources
Marthasville water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0039 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 2 DBP Rule | Treatment Technique | 8 | 1 |
| Surface Water Treatment Rule | Treatment Technique | 6 | 1 |
| PFOA | PFAS | 4 | 1 |
| PFNA | PFAS | 4 | 1 |
| Monochloroacetic Acid | Disinfection Byproducts | 4 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 63357 | — | 57 | 1 | St Charles County Pwsd 2 Dutzow |
All ZIP Codes in Marthasville
- 63357 - 57 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.
CDC Health Data for Marthasville
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
Key Contaminants Detected in Marthasville
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Marthasville's Housing Stock?
With 49% 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
Tap water lead levels are shaped by two factors: what the utility delivers, and what the household plumbing adds to it. Older homes contribute disproportionately to that second variable because lead solder was standard in copper plumbing before 1986, and lead pipes were common before 1970. In Marthasville, where the median build year is 1983, a substantial share of the housing stock falls into these older categories. The bar chart above breaks out the pre-1970, 1970-to-1986, and post-1986 segments - the key ages for understanding where plumbing-era risk concentrates across the city.
Most homes in Marthasville 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.
Marthasville: Remediation Cost in Perspective
Placing remediation in the context of Marthasville's property market, the equity share is low - most homeowners here are weighing a financial commitment that fits comfortably within routine property planning, far from the threshold where remediation becomes a material equity decision rather than a standard upkeep consideration.
Remediation costs in Marthasville are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 38% above the Missouri average.
Protecting Children from Lead in Marthasville
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.
Pulling a tap sample fills the gap that utility data cannot close, particularly here where 49% of housing dates from the pre-rule era and citywide monitoring sits at or above the regulatory mark in Marthasville.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Marthasville
Historical NFIP data for Marthasville contains 79 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $18,405. Among ZIP codes with claim records, 100% 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>$1,600</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 Marthasville, MO