Piedmont, SD: 2 Health Violations — 81/100 (2026)
1 ZIP code · 8 water systems · Updated 2026-06-03
In current SD EPA data, Piedmont's tap water sits in the high-safety tier.
How Piedmont Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Piedmont Water
- Your city's water systems recorded 4 violations in the past 5 years.
- Average lead level: 0.002 mg/L.
- Homes built before 1986: 39% — older plumbing may contain lead solder.
- Estimated remediation: $1,900 per household.
- CDC health risk index: 11.8.
Who Supplies Your Water in Piedmont
With 3 utilities splitting service in Piedmont, SD, water accountability is distributed across 8 systems on the federal record.
Overview
We track water quality and home safety data for 1 ZIP code in Piedmont, South Dakota (population ~4,017), covering 8 community water systems serving approximately 9,485 people region-wide.
1 of 1 ZIP code (100%) have recorded EPA violations. 2 health-based violations documented.
Home Safety Score
Average Home Safety Score for Piedmont: B (81/100)
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
Piedmont water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0020 mg/L (EPA action level: 0.015 mg/L)
- 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.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 2 DBP Rule | Treatment Technique | 4 | 1 |
| Surface Water Treatment Rule | Treatment Technique | 2 | 1 |
| Chlorine residual | Disinfectant | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 57769 | B | 4 | 2 | Black Hawk Water User District |
All ZIP Codes in Piedmont
- 57769 [B] — 4 violations ⚠
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 Piedmont
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
Top Contaminants in Piedmont Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Piedmont
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
Roughly balanced between older and newer construction, Piedmont shows a median build year of 1995 — a mid-range figure that places meaningful amounts of the residential inventory on both sides of the 1986 federal plumbing-solder ban.
Most homes in Piedmont were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Cost Context: What Remediation Means for Piedmont Homeowners
In Piedmont, property wealth outpaces what documented remediation typically demands — the equity burden lands well within the low tier.
Remediation costs in Piedmont are relatively low compared to home values. The $950–$3,200 estimated range is a small fraction of median property value. Home values are 89% above the South Dakota average.
Lead Exposure Risk for Children in Piedmont
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.
Confirming what arrives at a specific faucet is something utility-side averages cannot do. With 39% of Piedmont stock built before the lead-solder ban and citywide monitoring at or beyond the regulatory mark, a tap-level kit fits the standard diligence picture.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Piedmont
How does Piedmont's flood record connect to local water quality? The NFIP documents 10 claims — enough to signal recurring events — and 100% of ZIP codes carry FEMA flood zone status. That combination places flooding in the category of factors that can periodically affect water infrastructure, even if the area isn't among the highest-exposure communities in the NFIP dataset.
Piedmont has a moderate flood history with 10 FEMA claims averaging $3,529 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
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. Flood damage can add significantly to the estimated <strong>$1,900</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for Piedmont, SD