CITY REPORT SD 1 HEALTH VIOLATIONS

Flandreau, 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 with Violations
Zone 1
Radon Risk (High)
$175K
Median Home Value
$2,700
Est. Remediation (1.5% of home value)

Key Facts for Flandreau Residents

  • Your city's water systems recorded 3 violations in the past 5 years.
  • Average lead level: 0.002 mg/L.
  • Homes built before 1986: 73% - older plumbing may contain lead solder.
  • Estimated remediation: $2,700 per household.
  • CDC health risk index: 13.01 - above typical levels.

Flandreau's Water Providers

Structurally, Flandreau, SD's water supply is divided. Federal data identifies 3 water systems in the area, with 3 providers serving the bulk of residential connections. These utilities operate independently, meaning rate-setting authority and EPA compliance accountability are distributed rather than centralized.

Overview

We track home safety data for 1 ZIP code in Flandreau, South Dakota (population ~3,112), covering 3 community water systems serving approximately 14,627 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. 1 health-based violation appear in the available health breakdown.

Water Sources

Flandreau water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0020 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

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
Lead Inorganic 2 1
Stage 1 DBP Rule Treatment Technique 2 1
Chlorine residual Disinfectant 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
57028 3 1 Flandreau

All ZIP Codes in Flandreau

  • 57028 - 3 violations ⚠

Data Sources

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

Flandreau Community Health Snapshot

10.1%
Asthma (US: 9.8%)
12.1%
Diabetes (US: 10.4%)
14.2%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 10.1% ↑
Diabetes 12.1% ↑
Mental Health 14.2% ↓

Vertical line = national average. Above national · Below national

What's in Flandreau's Water?

Lead 2 violations
Inorganic · EPA limit: 0.015 mg/L
Stage 1 DBP Rule 2 violations
Treatment Technique
Disinfection byproduct exposure risk
Chlorine residual 2 violations
Disinfectant · EPA limit: 4 mg/L

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

Flandreau Infrastructure Age

1964
Median Build Year
73%
Built Before 1986
45%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

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 a city's housing median build year is 1964, as in Flandreau, the implication for water quality research is straightforward: municipal-level data captures what leaves the treatment plant, but household plumbing from before 1986 determines what actually arrives at the tap. In cities where older housing predominates, that gap between system-level and household-level data is widest.

1964
Median Year Built
73%
Pre-1986 (Lead Paint Risk)
45%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (45%) 1970–1986 (28%) Post-1986 (27%)

Over half of homes in Flandreau 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.

How Remediation Costs Compare in Flandreau

Middle of the range - Flandreau homeowners face a remediation share that calls for real financial attention without reaching crisis territory.

Median Home Value
$175,400
Est. Remediation
$2,700
Remediation as % of home value 1.5%

Remediation costs are moderate relative to home values in Flandreau. The estimated $1,750–$3,900 range is manageable for most homeowners but still worth budgeting for. Home values are 0% above the South Dakota average.

Flandreau: Lead Risk & Vulnerable Populations

73%
Homes Built Before 1986
0.002
mg/L Avg Lead (Limit: 0.015)

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.

After the federal action removing lead-bearing solder from new plumbing took effect, building practice shifted - but 73% of the Flandreau inventory predates that line. With aggregate samples near or beyond 0.015 mg/L, an in-home check moves out of the optional column into the standard list.

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

Flandreau: NFIP Claim Records and Water-Quality Context

19
Total FEMA Flood Claims
$14,732
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Flandreau contains 19 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $14,732. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$2,700</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

Frequently Asked Questions

How many water violations does Flandreau have?
Flandreau water systems have a total of 3 EPA violations, including 1 health-based violation. Violations are tracked across 1 ZIP code.
Does Flandreau water have lead?
The average 90th-percentile lead level in Flandreau is 0.002 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Flandreau?
Flandreau is served by 3 public water systems across 1 ZIP code, serving approximately 3,112 people.
How much does it cost to fix water issues in Flandreau?
Estimated remediation costs in Flandreau average $2,700 per household, ranging from $1,750 to $3,900. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesSouth Dakota → Flandreau, SD

How to cite this page

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

Page version: August 2026.

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