Marshall, IN Water Safety: 76/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Based on current monitoring, Marshall holds an above-average drinking water safety record for IN — violations are infrequent and typically minor when they do appear.
How Marshall Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Marshall Water
- Average lead level: 0.007 mg/L.
- Homes built before 1986: 60% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 16.51 — above typical levels.
Who Supplies Your Water in Marshall
While 1 water system appear in federal records for Marshall, IN, one provider supplies the majority of residential connections — making it the central point of infrastructure and compliance accountability for most households.
Overview
We track water quality and home safety data for 1 ZIP code in Marshall, Indiana, covering 1 community water system serving approximately 1,078 people.
No EPA violations recorded across any ZIP codes in Marshall — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Marshall: B (76/100)
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
Marshall water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0070 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.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 47859 | B | Marshall Water Works | 330 |
All ZIP Codes in Marshall
- 47859 [B]
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.
Health Outcomes in Marshall
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
Housing & Infrastructure in Marshall
With 60% 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
Pre-1986 plumbing is not a rare legacy case in Marshall — it's the dominant profile. The median build year of 1974 indicates a housing stock where lead-soldered copper joints are a common structural feature of residences across the city.
Over half of homes in Marshall 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.
Cost Context: What Remediation Means for Marshall Homeowners
Across Marshall, the equity share taken up by estimated remediation is small — a favorable ratio for most property owners.
Remediation costs in Marshall are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 40% below the Indiana average.
Lead Exposure Risk for Children in Marshall
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.
Despite citywide averages serving as the standard public reference point, those aggregates cannot resolve what is happening at one specific faucet — and where 60% of Marshall homes come from before the solder rule or where utility samples sit at or above the action mark, the gap between system data and faucet reality matters more than it does in lower-exposure communities. An in-home draw closes that gap, with certified filtration through retailer networks available where confirmed faucet results warrant additional measures.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Marshall, IN