A80/100
OTTAWA, CITY OF — Water Quality Report 2026
Serving 12,604 people · Kansas
Water Source
Surface Water
County
—
System ID
KS2005906
Violations
5
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
1
Health-Related
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2024 – September 30, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed to complete routine monitoring
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: May 1, 2022 – May 31, 2022Rule: Surface Water Treatment 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 OTTAWA, CITY OF
Is OTTAWA, CITY OF water safe to drink?
OTTAWA, CITY OF water receives a grade of A (80/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has OTTAWA, CITY OF detected?
69 contaminants were tested in OTTAWA, CITY OF's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does OTTAWA, CITY OF have any EPA violations?
Yes, OTTAWA, CITY OF has 5 EPA violation(s) on record, with the most recent in 2024. Violation types include MCL, MR, Other. 3 are health-based violations.
How many people does OTTAWA, CITY OF serve?
OTTAWA, CITY OF serves approximately 12,604 people, Kansas. The system provides water to 1 community: Ottawa.
What type of water does OTTAWA, CITY OF provide?
OTTAWA, CITY OF sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is KS2005906.
How does OTTAWA, CITY OF compare to other utilities in Kansas?
OTTAWA, CITY OF scores 80/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Kansas state page for a full comparison of water systems.