F0/100
KLAMATH FALLS WATER DEPT — Water Quality Report 2026
Serving 40,475 people · Oregon
Water Source
Groundwater
County
—
System ID
OR4100443
Violations
167
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOS | 0.005 µg/L | 0.004 µg/L | Over Limit |
vanadium | 26.10 µg/L | — | Above Goal |
EPA Violation History
4
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: February 1, 2025 – February 28, 2025Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: October 1, 2024 – November 8, 2024Enforcement: 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: September 1, 2024 – September 30, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – July 3, 2023Enforcement: 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 KLAMATH FALLS WATER DEPT
Is KLAMATH FALLS WATER DEPT water safe to drink?
KLAMATH FALLS WATER DEPT water receives a grade of F (0/100), which is considered failing. 1 contaminant(s) exceed EPA legal limits and 167 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has KLAMATH FALLS WATER DEPT detected?
66 contaminants were tested in KLAMATH FALLS WATER DEPT's water. Notable contaminants include PFOS, vanadium. 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does KLAMATH FALLS WATER DEPT have any EPA violations?
Yes, KLAMATH FALLS WATER DEPT has 167 EPA violation(s) on record, with the most recent in 2025. Violation types include MON, Other, MR. 1 are health-based violations.
How many people does KLAMATH FALLS WATER DEPT serve?
KLAMATH FALLS WATER DEPT serves approximately 40,475 people, Oregon.
What type of water does KLAMATH FALLS WATER DEPT provide?
KLAMATH FALLS WATER DEPT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is OR4100443.
How does KLAMATH FALLS WATER DEPT compare to other utilities in Oregon?
KLAMATH FALLS WATER DEPT scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Oregon state page for a full comparison of water systems.