Clarence, MO Water Safety: 83/100 (2026)
1 ZIP code · 3 water systems · Updated 2026-06-03
Across Clarence, EPA monitoring data shows low violation rates and healthy safety margins — a pattern that places the city well above MO's average for drinking water compliance across recent reporting cycles.
How Clarence Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Clarence Residents
- Average lead level: 0.0031 mg/L.
- Homes built before 1986: 83% — older plumbing may contain lead solder.
- Estimated remediation: $900 per household.
- CDC health risk index: 16.38 — above typical levels.
Clarence's Water Providers
3 independent water providers serve Clarence, MO — 3 systems appear in federal records.
Overview
We track water quality and home safety data for 1 ZIP code in Clarence, Missouri (population ~1,558), covering 3 community water systems serving approximately 20,355 people region-wide.
No EPA violations recorded across any ZIP codes in Clarence — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Clarence: B (83/100)
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
Clarence water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0031 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 |
|---|---|---|---|
| 63437 | B | Macon Company Pwsd 1 | 12,865 |
All ZIP Codes in Clarence
- 63437 [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.
Clarence 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
Clarence Infrastructure Age
With 83% 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
When a city's housing median build year is 1966, as in Clarence, the implication for water quality research is straightforward: municipal-level data captures what leaves the treatment plant, but household plumbing from before 1986 determines what actually arrives at the tap. In cities where older housing predominates, that gap between system-level and household-level data is widest.
Over half of homes in Clarence 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 Clarence
Remediation costs in Clarence represent a moderate share of typical home values — worth budgeting for carefully, though within reach for most homeowners who plan ahead.
Remediation costs are moderate relative to home values in Clarence. The estimated $300–$1,600 range is manageable for most homeowners but still worth budgeting for. Home values are 56% below the Missouri average.
Clarence: 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.
After the federal action removing lead-bearing solder from new plumbing took effect, building practice shifted — but 83% of the Clarence inventory predates that line. With aggregate samples near or beyond 0.015 mg/L, an in-home check moves out of the optional column into the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Clarence, MO