Oyens, IA: 1 Violation — 66/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Public water data for Oyens, IA reveals a split picture — tap water quality varies meaningfully by service area and the city's grade reflects that variability.
How Oyens Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Oyens Water
- Your city's water systems recorded 1 violation in the past 5 years.
- Average lead level: 0.0013 mg/L.
- Homes built before 1986: 100% — older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 13.28 — above typical levels.
Who Supplies Your Water in Oyens
Most residential addresses in Oyens, IA are served by a single water utility — the dominant system among the 1 provider tracked in federal data.
Overview
We track water quality and home safety data for 1 ZIP code in Oyens, Iowa, covering 1 community water system serving approximately 75 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 Oyens: C (66/100)
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
Oyens water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0013 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 51045 | C | 1 | 0 | Oyens Water Supply |
All ZIP Codes in Oyens
- 51045 [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.
Health Outcomes in Oyens
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
Top Contaminants in Oyens Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Oyens
With 100% 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
Reading the housing age data for Oyens — median build year 1979 — the overriding implication is that the plumbing materials inside a typical home here reflect pre-1986 construction standards. In practical terms, that means lead-soldered copper joints are common across much of the housing stock. Where those materials are present, water can leach lead as it moves through joints — a pathway that corrosion control treatment under federal rules is designed to reduce, though it cannot eliminate lead risk where the plumbing materials themselves contain lead.
Over half of homes in Oyens 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 Oyens Homeowners
Setting Oyens remediation figures against its property market, the resulting ratio sits comfortably in the low tier — a classification that reflects the kind of household financial position where most homeowners can identify documented issues, schedule the work, and absorb the cost without it registering as a significant budget disruption.
Remediation costs in Oyens are relatively low compared to home values. The $800–$1,500 estimated range is a small fraction of median property value. Home values are 6% below the Iowa average.
Lead Exposure Risk for Children in Oyens
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 100% of housing dates from the pre-rule era and citywide monitoring sits at or above the regulatory mark in Oyens.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Oyens
- 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 Surface Water Treatment Rule can reduce the most common contaminant found in Oyens's water.
- Check your home's plumbing. With 100% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Oyens, IA