Lyons, SD: High Radon Potential Area - Home Safety 67/100
1 ZIP code · 1 water system · Updated
ZipCheckup grade for Lyons: C.
A mixed picture - some signals here are worth your attention.
Neither high nor low, the composite grade for Lyons, SD is a C, built from ZIP-level scores.
How Lyons Compares
Data: EPA SDWIS
Key Facts for Lyons Residents
- Average of reported 90th-percentile lead results: 0.001 mg/L.
- Homes built before 1986: 38% - older plumbing may contain lead solder.
- Health risk index (ZipCheckup composite of CDC data): 12.17.
Lyons's Water Providers
Only a single entry appears in the water system list for Lyons, SD; federal records tie 1 to the area.
- C
Overview
We track home safety data for 1 ZIP code in Lyons, South Dakota (population ~115), covering 1 community water system serving approximately 13,435 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.
The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.
Home Safety Score
Average Home Safety Score for Lyons: C (67/100)
Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| PFAS MCL Screen | UCMR 5 testing against the covered federal MCLs |
| Radon Risk | EPA radon zone classification |
| Annual AQI | EPA AirData county-year median with at least 90 observed days |
Water Sources
Lyons water systems draw from: Groundwater.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0010 mg/L (EPA action level: 0.015 mg/L)
- 0 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
1 of 1 ZIP records with known zones is in EPA Radon Zone 1.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 57041 | C | Minnehaha Community Water Corporation | 13,435 |
All ZIP Codes in Lyons
- 57041 [C]
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
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Lyons Community Health Snapshot
Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Lyons Infrastructure Age
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Homes on the same street in Lyons can differ: one may keep original pre-1986 plumbing while another has been replumbed, so the 1994 median is only a starting point.
A significant portion of Lyons's housing stock predates 1970, so some homes may have older plumbing materials. Residents in older homes should consider water testing.
Source: U.S. Census Bureau ACS B25034.
Lyons: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Lyons
- Test your water at home. City-level data shows averages - your tap may differ. Check the certification, price and turnaround time of any water test kit or lab service.
- Install a certified water filter. Choose a pitcher or under-sink filter certified to reduce the specific contaminants of concern.
- Check your home's plumbing. With 38% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Lyons, SD