C
55

Fair Water Quality

Terre Haute, IN 47802

Vigo County · Population served: 68,075 · Data updated March 2026

Water Systems Serving This Area

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INDIANA AMERICAN WATER - TERRE HAUTE
Groundwater · Pop. 67,765
PWSID: IN5284012
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TRAILS EDGE APTS
Groundwater · Pop. 260
PWSID: IN5284022
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ROCKY ACRES MOBILE HOME PARK
Groundwater · Pop. 50
PWSID: IN5284027

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
4.0
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

3 detected 1 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFOS5.2 ppt4 ppt4 pptExceeded
PFPeA4.1 pptNo standardUnregulated
PFBS3.0 ppt2000 ppt100 pptBelow limit

Violation History (Last 5 Years)

24Total (5yr)
1Health-Based
17Major

Water Quality Summary

Understanding Your Water in Terre Haute

Tap water quality in Terre Haute, Indiana (47802) receives an overall grade of C (Fair) with a score of 55 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 24 points below the Indiana state average of 79. Compared to the national average (75), this area scores significantly lower. The area is served by 3 water systems providing water to approximately 68,075 people, using groundwater sources. Testing has found elevated levels of Lead that warrant attention. Notably, 1 PFAS compound exceeds EPA limits — a significant concern given the persistent nature of these chemicals. Over the past 5 years, water systems here have accumulated 24 violations, including 1 health-based violations.

Your Score 55/100 C
vs State 24 pts below Indiana avg (79)
vs National 20 pts below national avg (75)

What a Grade C Means

A score of 55/100 indicates fair water quality in Terre Haute, IN. While the water meets minimum federal standards, there are noteworthy concerns — either elevated contaminant levels approaching regulatory limits, a moderate violation history, or both. Residents may want to review specific contaminant data and consider targeted filtration, especially for sensitive groups like children and pregnant women.

Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

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Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

Tap water in Terre Haute, Indiana receives a grade of C (Fair) with a score of 55/100. While it generally meets minimum federal standards, there are some areas of concern including violation history or elevated contaminant levels. Sensitive populations (children, pregnant women, elderly) may want to consider additional filtration.

ZIP code 47802 is served by 3 water systems using groundwater sources, providing water to approximately 68,075 people. Groundwater is naturally filtered through rock and soil, often requiring less treatment. However, it can be vulnerable to contamination from underground sources like naturally occurring arsenic, nitrates from agriculture, or PFAS from industrial sites.

Lead was detected at 4.0 ppb in Terre Haute, Indiana. While this is below the EPA action level of 15 ppb, it exceeds the health guideline of 1 ppb recommended by health organizations. Consider a certified lead filter, especially if you have young children.

Yes — 3 PFAS compounds were detected in water serving Terre Haute, Indiana, and 1 exceeds EPA maximum contaminant levels. PFAS are persistent chemicals linked to cancer, immune system effects, and developmental issues. A reverse osmosis or activated carbon filter certified for PFAS removal is recommended.

Water systems serving Terre Haute, Indiana have received 24 violations in the last 5 years, including 1 health-based violation. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Based on detected contaminants (lead, PFAS), residents in Terre Haute, Indiana should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

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