CITY REPORT SD

Gayville, SD Water - Home Safety Score unavailable

1 ZIP code · 1 water system · Updated

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
0
ZIPs Linked to Systems with Violations
Zone 1
County Radon Potential (High)
$138K
Median Home Value

What You Should Know About Gayville Water

  • Average of reported 90th-percentile lead results: 0.001 mg/L.
  • Homes built before 1986: 83% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 13.32.

Who Supplies Your Water in Gayville

Which water system serves a particular address in Gayville, SD? The water bill or the utility can confirm it; the list here shows one system, and federal data link 1 in total.

Overview

We track home safety data for 1 ZIP code in Gayville, South Dakota (population ~670), covering 1 community water system serving approximately 13,320 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.

Water Sources

Gayville water systems draw from: Surface water.

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
57031 — By Water District 13,320

All ZIP Codes in Gayville

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Health Outcomes in Gayville

9.8%
Asthma (US: 9.8%)
11.8%
Diabetes (US: 10.4%)
14.4%
Poor Mental Health (US: 14.8%)

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

Asthma 9.8% ↓
Diabetes 11.8% ↑
Mental Health 14.4% ↓

Vertical line = national average. ■ Above national · ■ Below national

Housing & Infrastructure in Gayville

1964
Median Build Year
83%
Built Before 1986
63%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 83% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Ask the water utility whether your address in Gayville has a lead service line; its inventory can answer what a median build year of 1964 cannot.

1964
Median Year Built
83%
Pre-1986 (lead solder era; lead paint banned 1978)
63%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (63%) 1970–1986 (20%) Post-1986 (17%)

Over half of homes in Gayville were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Lead Exposure Risk for Children in Gayville

83%
Homes Built Before 1986
0.001
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

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.

Frequently Asked Questions

Does Gayville water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Gayville is 0.001 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Gayville?
Our records map 1 water system to 1 ZIP code in Gayville. The related population figure in our data is approximately 670 people; it is not a count of people served citywide.
Home → Cities → South Dakota → Gayville, SD

How to cite this page

APA ZipCheckup. (2026). Gayville, SD Water - Home Safety Score unavailable. https://zipcheckup.com/cities/sd/gayville/
BibTeX
@misc{zipcheckup-cities-sd-gayville,
  author = {{ZipCheckup}},
  title  = {{Gayville, SD Water - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/sd/gayville/}
}

Page version: October 2026.

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