Lantry, SD Water Safety: 53/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Compared to SD averages, Lantry scores below the baseline — health violations appear more frequently than the norm and the city's grade reflects that ongoing shortfall.
How Lantry Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Lantry Water
- Homes built before 1986: 73% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 16.91 — above typical levels.
Who Supplies Your Water in Lantry
Because residential water in Lantry, SD flows primarily through a single utility, infrastructure decisions, rate-setting, and EPA compliance are all managed within one organizational structure. Federal records show 1 system active in the area, but one provider dominates the service landscape for most homes and apartments.
Overview
We track water quality and home safety data for 1 ZIP code in Lantry, South Dakota (population ~66), covering 1 community water system serving approximately 4,000 people region-wide.
No EPA violations recorded across any ZIP codes in Lantry — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Lantry: D (53/100)
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
Lantry water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Lantry
- 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 |
|---|---|---|---|
| 57636 | D | EAGLE BUTTE | 4,000 |
All ZIP Codes in Lantry
- 57636 [D]
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 Lantry
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 Lantry
With 73% 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 more than half a city's housing predates the 1986 federal ban on lead solder, plumbing-era lead risk becomes a citywide concern rather than an exception. Lantry's median build year of 1973 places it squarely in that category.
Over half of homes in Lantry 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 Lantry Homeowners
Because property values in Lantry comfortably exceed estimated remediation costs, the equity impact here is proportionally small.
Remediation costs in Lantry are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 19% above the South Dakota average.
Lead Exposure Risk for Children in Lantry
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 Lantry represents 73% 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 Lantry
- 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. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. With 73% of homes built before 1986, lead solder is a real possibility.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Lantry, SD