F0/100
OSWEGO, CITY OF — Water Quality Report 2026
Serving 1,680 people · Kansas
Water Source
Surface Water
County
—
System ID
KS2009908
Violations
82
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
4
Violations (last 5yr)
0
Unresolved
1
Health-Related
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: August 1, 2024 – August 31, 2024Rule: Surface Water Treatment RuleEnforcement: 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: January 1, 2024 – January 31, 2024Rule: Surface Water Treatment RuleEnforcement: 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: June 1, 2023 – June 30, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2021 – July 31, 2021Rule: Stage 1 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 OSWEGO, CITY OF
Is OSWEGO, CITY OF water safe to drink?
OSWEGO, CITY OF water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 82 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has OSWEGO, CITY OF detected?
1 contaminants were tested in OSWEGO, CITY OF's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does OSWEGO, CITY OF have any EPA violations?
Yes, OSWEGO, CITY OF has 82 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, MCL, Other. 35 are health-based violations.
How many people does OSWEGO, CITY OF serve?
OSWEGO, CITY OF serves approximately 1,680 people, Kansas. The system provides water to 1 community: Oswego.
What type of water does OSWEGO, CITY OF provide?
OSWEGO, 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 KS2009908.
How does OSWEGO, CITY OF compare to other utilities in Kansas?
OSWEGO, CITY OF scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Kansas state page for a full comparison of water systems.