Green Castle, MO: 1 Violation — 67/100 (2026)
1 ZIP code · 3 water systems · Updated 2026-06-03
Public water data for Green Castle, MO reveals a split picture — tap water quality varies meaningfully by service area and the city's grade reflects that variability.
How Green Castle Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Green Castle Residents
- Your city's water systems recorded 1 violation in the past 5 years.
- Average lead level: 0.0099 mg/L.
- Homes built before 1986: 64% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 15.62 — above typical levels.
Green Castle's Water Providers
Water delivery in Green Castle, MO is handled by 3 utilities rather than a single system — drawn from 3 providers in federal records, each filing its own compliance reports and setting its own rates.
Overview
We track water quality and home safety data for 1 ZIP code in Green Castle, Missouri (population ~1,119), covering 3 community water systems serving approximately 12,124 people region-wide.
1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Green Castle: C (67/100)
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
Green Castle water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0099 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 |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 63544 | C | 1 | 0 | Adair County Pwsd 1 |
All ZIP Codes in Green Castle
- 63544 [C] — 1 violation
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.
Green Castle 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 Green Castle's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Green Castle Infrastructure Age
With 64% 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
Heavily weighted toward older construction, Green Castle's housing stock carries a median build year of 1974. That profile puts a majority of homes in the era when lead-soldered copper plumbing was standard practice.
Over half of homes in Green Castle 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.
How Remediation Costs Compare in Green Castle
Because property values in Green Castle comfortably exceed estimated remediation costs, the equity impact here is proportionally small.
Remediation costs in Green Castle are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 18% below the Missouri average.
Green Castle: 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.
Older stock in Green Castle represents 64% of the inventory, and citywide monitoring runs at or above the federal action level — making an in-home read a standard household-level step.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Green Castle
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. Filters rated for Consumer Confidence Report Rule can reduce the most common contaminant found in Green Castle's water.
- Check your home's plumbing. With 64% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Green Castle, MO