F0/100
QUIMPER — Water Quality Report 2026
Serving 14,500 people · Washington
Water Source
Groundwater
County
—
System ID
WA5305783
Violations
172
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.39 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2025 – September 22, 2025Enforcement: 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 QUIMPER
Is QUIMPER water safe to drink?
QUIMPER water receives a grade of F (0/100), which is considered failing. 1 contaminant(s) exceed EPA legal limits and 172 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has QUIMPER detected?
32 contaminants were tested in QUIMPER's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does QUIMPER have any EPA violations?
Yes, QUIMPER has 172 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR.
How many people does QUIMPER serve?
QUIMPER serves approximately 14,500 people, Washington.
What type of water does QUIMPER provide?
QUIMPER sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WA5305783.
How does QUIMPER compare to other utilities in Washington?
QUIMPER scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Washington state page for a full comparison of water systems.