B60/100
KALAMAZOO LAKE SEWER & WATER AUTHORITY — Water Quality Report 2026
Serving 5,000 people · Michigan
Water Source
Groundwater
County
—
System ID
MI0003525
Violations
25
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.57 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
4
Violations (last 5yr)
0
Unresolved
1
Health-Related
TIER 2Resolved
Violation related to Nitrite
When: July 18, 2025 – August 8, 2025Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: February 1, 2023 – February 28, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2023 – August 29, 2023Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2023 – August 29, 2023Rule: Stage 2 DBPREnforcement: 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 KALAMAZOO LAKE SEWER & WATER AUTHORITY
Is KALAMAZOO LAKE SEWER & WATER AUTHORITY water safe to drink?
KALAMAZOO LAKE SEWER & WATER AUTHORITY water receives a grade of B (60/100), which is considered good. Out of 32 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has KALAMAZOO LAKE SEWER & WATER AUTHORITY detected?
32 contaminants were tested in KALAMAZOO LAKE SEWER & WATER AUTHORITY's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does KALAMAZOO LAKE SEWER & WATER AUTHORITY have any EPA violations?
Yes, KALAMAZOO LAKE SEWER & WATER AUTHORITY has 25 EPA violation(s) on record, with the most recent in 2025. Violation types include TT, MON, MR. 1 are health-based violations.
How many people does KALAMAZOO LAKE SEWER & WATER AUTHORITY serve?
KALAMAZOO LAKE SEWER & WATER AUTHORITY serves approximately 5,000 people, Michigan.
What type of water does KALAMAZOO LAKE SEWER & WATER AUTHORITY provide?
KALAMAZOO LAKE SEWER & WATER AUTHORITY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MI0003525.
How does KALAMAZOO LAKE SEWER & WATER AUTHORITY compare to other utilities in Michigan?
KALAMAZOO LAKE SEWER & WATER AUTHORITY scores 60/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Michigan state page for a full comparison of water systems.