B71/100
LAFAYETTE WATER WORKS — Water Quality Report 2026
Serving 70,835 people · Indiana
Water Source
Groundwater
County
—
System ID
IN5279013
Violations
14
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.70 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
3
Violations (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Resolved
Failed to conduct Level 1 Assessment
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 13, 2025 – July 16, 2025Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2025 – July 31, 2025Rule: Total Coliform RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
Monitoring violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: May 1, 2021 – June 25, 2021Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About LAFAYETTE WATER WORKS
Is LAFAYETTE WATER WORKS water safe to drink?
LAFAYETTE WATER WORKS water receives a grade of B (71/100), which is considered good. Out of 67 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has LAFAYETTE WATER WORKS detected?
67 contaminants were tested in LAFAYETTE WATER WORKS's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does LAFAYETTE WATER WORKS have any EPA violations?
Yes, LAFAYETTE WATER WORKS has 14 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, MON, RPT. 1 are health-based violations.
How many people does LAFAYETTE WATER WORKS serve?
LAFAYETTE WATER WORKS serves approximately 70,835 people, Indiana. The system provides water to 1 community: Lafayette.
What type of water does LAFAYETTE WATER WORKS provide?
LAFAYETTE WATER WORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IN5279013.
How does LAFAYETTE WATER WORKS compare to other utilities in Indiana?
LAFAYETTE WATER WORKS scores 71/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Indiana state page for a full comparison of water systems.