Terre Haute, IN: 20 Health Violations — 75/100 (2026)
10 ZIP codes · 7 water systems · Updated 2026-06-03
Tap water monitoring data for Terre Haute shows a consistently clean picture in IN — few violations on record, compliance well above the median.
How Terre Haute Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Terre Haute, IN
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Safety grade breakdown for Terre Haute's 10 ZIP codes.
Key Facts for Terre Haute Residents
- Your city's water systems recorded 90 violations in the past 5 years.
- Average lead level: 0.002 mg/L.
- Estimated remediation: $2,020 per household.
- CDC health risk index: 14.69 — above typical levels.
Terre Haute's Water Providers
In Terre Haute, IN, residential water supply is distributed across multiple utilities rather than concentrated in one. The 3 leading providers out of 7 tracked systems each control their own infrastructure, file separate EPA compliance reports, and set independent rate schedules.
Overview
We track water quality and home safety data for 10 ZIP codes in Terre Haute, Indiana, covering 7 community water systems serving approximately 92,927 people.
10 of 10 ZIP codes (100%) have recorded EPA violations. 20 health-based violations documented.
Home Safety Score
Average Home Safety Score for Terre Haute: B (75/100)
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
Terre Haute 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)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 10 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | 33 | 10 |
| Stage 2 DBP Rule | Treatment Technique | 22 | 10 |
| Consumer Confidence Report Rule | Reporting | 22 | 10 |
| Total Organic Carbon | Disinfection Byproducts | 11 | 10 |
| Stage 1 DBP Rule | Treatment Technique | 11 | 10 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 47801 | B | 9 | 2 | Indiana American Water - Terre Haute |
| 47802 | C | 9 | 2 | Indiana American Water - Terre Haute |
| 47803 | B | 9 | 2 | Indiana American Water - Terre Haute |
| 47804 | B | 9 | 2 | Indiana American Water - Terre Haute |
| 47805 | B | 9 | 2 | Indiana American Water - Terre Haute |
| 47807 | B | 9 | 2 | Indiana American Water - Terre Haute |
| 47808 | B | 9 | 2 | Indiana American Water - Terre Haute |
| 47809 | B | 9 | 2 | Indiana American Water - Terre Haute |
| 47811 | B | 9 | 2 | Indiana American Water - Terre Haute |
| 47812 | B | 9 | 2 | Indiana American Water - Terre Haute |
All ZIP Codes in Terre Haute
- 47801 [B] — 9 violations ⚠
- 47802 [C] — 9 violations ⚠
- 47803 [B] — 9 violations ⚠
- 47804 [B] — 9 violations ⚠
- 47805 [B] — 9 violations ⚠
- 47807 [B] — 9 violations ⚠
- 47808 [B] — 9 violations ⚠
- 47809 [B] — 9 violations ⚠
- 47811 [B] — 9 violations ⚠
- 47812 [B] — 9 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.
Terre Haute Community Health Snapshot
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
What's in Terre Haute's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Remediation Costs Compare in Terre Haute
While Terre Haute homeowners face a manageable path to remediation, the equity share sits in the moderate tier — a signal that proactive budgeting matters more here than in lower-ratio markets.
Remediation costs are moderate relative to home values in Terre Haute. The estimated $1,030–$3,260 range is manageable for most homeowners but still worth budgeting for. Home values are 18% below the Indiana average.
Terre Haute: Lead Risk & Vulnerable Populations
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.
Lead risk in Terre Haute appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Terre Haute: Flood History & Water Damage Risk
NFIP data for Terre Haute documents 569 flood insurance claims across the program's multi-decade tracking period, with 60% of ZIP codes mapped into FEMA flood zones. That level of exposure creates compounding risk during major flood events: treatment systems can be overwhelmed, wells can be contaminated, and distribution infrastructure can suffer backflow — all pathways by which flood events degrade local water quality beyond the physical damage.
Terre Haute has a significant flood history with 569 FEMA flood insurance claims on record, averaging $18,957 per claim. With 60% of ZIP codes in FEMA-designated flood zones, flood risk is a major concern for homeowners and water quality.
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>$2,020</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 Terre Haute, IN