CITY REPORT SD

Clear Lake, SD: 3 Violations - Home Safety Score unavailable

1 ZIP code · 3 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
3
Water Systems
1
ZIPs Linked to Systems with Violations
Zone 1
County Radon Potential (High)
$176K
Median Home Value

Clear Lake Water: The Quick Version

  • Your city's water systems recorded 3 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.013 mg/L.
  • Homes built before 1986: 80% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 13.24.

Water Systems Serving Clear Lake

Counting every public water system linked to Clear Lake, SD in federal data gives 3. The list below keeps the 3 largest by reported population served, a figure that covers each system's whole service area rather than the city alone. A household's own supplier is named on its water bill.

Overview

We track home safety data for 1 ZIP code in Clear Lake, South Dakota (population ~1,834), covering 3 community water systems serving approximately 11,698 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Water Sources

Clear Lake water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0130 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.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Gross Alpha (excl. radon and uranium) Radionuclides 2 1
Combined Uranium Radionuclides 2 1
Combined Radium (-226 and -228) Radionuclides 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
57226 — 3 0 Brookings-deuel Rural Water System

All ZIP Codes in Clear Lake

  • 57226 - 3 violations recorded for mapped water systems

Data Sources

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

CDC Health Data for Clear Lake

9.9%
Asthma (US: 9.8%)
11.9%
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 9.9% ↑
Diabetes 11.9% ↑
Mental Health 14.4% ↓

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

Key Contaminants Detected in Clear Lake

Gross Alpha (excl. radon and uranium) 2 violations
Radionuclides · EPA regulatory level for the contaminant named above: 15 pCi/L
Combined Uranium 2 violations
Radionuclides · EPA regulatory level for the contaminant named above: 0.03 mg/L
Combined Radium (-226 and -228) 2 violations
Radionuclides · EPA regulatory level for the contaminant named above: 5 pCi/L

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

How Old Is Clear Lake's Housing Stock?

1979
Median Build Year
80%
Built Before 1986
49%
Built Before 1970
Copper
Likely Pipe Material

With 80% 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

Lead can reach tap water from service lines, solder and brass fittings inside a building, which is why housing age draws attention in Clear Lake, where the median build year is 1979.

1979
Median Year Built
80%
Pre-1986 (lead solder era; lead paint banned 1978)
49%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (49%) 1970–1986 (31%) Post-1986 (20%)

Over half of homes in Clear Lake 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.

Protecting Children from Lead in Clear Lake

80%
Homes Built Before 1986
0.013
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.

Lead results averaged across Clear Lake ZIP codes reach 10 ppb or more; about 80% of the housing predates 1986.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Frequently Asked Questions

How many violations are on record for water systems serving Clear Lake?
EPA records list 3 EPA violations for Clear Lake water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Clear Lake water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Clear Lake is 0.013 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 Clear Lake?
Our records map 3 water systems to 1 ZIP code in Clear Lake. The related population figure in our data is approximately 1,834 people; it is not a count of people served citywide.
Home → Cities → South Dakota → Clear Lake, SD

How to cite this page

APA ZipCheckup. (2026). Clear Lake, SD: 3 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/sd/clear-lake/
BibTeX
@misc{zipcheckup-cities-sd-clear-lake,
  author = {{ZipCheckup}},
  title  = {{Clear Lake, SD: 3 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/sd/clear-lake/}
}

Page version: October 2026.

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