Marshfield, MO: 13 Violations — 70/100 (2026)
1 ZIP code · 5 water systems · Updated 2026-06-03
In current MO EPA data, Marshfield's tap water sits in the high-safety tier.
How Marshfield Compares
Data: EPA SDWIS Last verified: 2026-06-03
Marshfield Water: The Quick Version
- Your city's water systems recorded 13 violations in the past 5 years.
- Average lead level: 0.0055 mg/L.
- Homes built before 1986: 49% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 14.74 — above typical levels.
Water Systems Serving Marshfield
Throughout Marshfield, MO, water comes from one of 3 primary utilities out of 5 total systems — independent providers with different rate structures, infrastructure, and compliance records that vary across the service territory.
Overview
We track water quality and home safety data for 1 ZIP code in Marshfield, Missouri, covering 5 community water systems serving approximately 17,479 people.
1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Marshfield: B (70/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Marshfield water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0055 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes 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 |
|---|---|---|---|
| Contaminant 0700 | Other | 12 | 1 |
| Stage 1 DBP Rule | Treatment Technique | 4 | 1 |
| Surface Water Treatment Rule | Treatment Technique | 4 | 1 |
| Total Coliform | Microbiological | 2 | 1 |
| Lead and Copper Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 65706 | B | 13 | 0 | Marshfield Public Water System |
All ZIP Codes in Marshfield
- 65706 [B] — 13 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
Updated daily.
CDC Health Data for Marshfield
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 Marshfield
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Marshfield'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
Roughly balanced between older and newer construction, Marshfield shows a median build year of 1983 — a mid-range figure that places meaningful amounts of the residential inventory on both sides of the 1986 federal plumbing-solder ban.
Most homes in Marshfield 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.
Marshfield: Remediation Cost in Perspective
Equity impact data for Marshfield lands in the favorable tier — remediation claims a small slice of what properties here are worth.
Remediation costs in Marshfield are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 33% above the Missouri average.
Protecting Children from Lead in Marshfield
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.
In recent monitoring under the Lead and Copper Rule, citywide samples for Marshfield have approached or crossed the regulatory action level on multiple occasions. Combined with 49% of stock dating from the pre-rule era, the picture supports baseline single-tap reads as a standard household-level step.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Marshfield, MO