F0/100
COEUR D ALENE CITY OF — Water Quality Report 2026
Serving 54,115 people · Idaho
Water Source
Groundwater
County
—
System ID
ID1280053
Violations
89
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
No violations in the past 5 years
Full EPA compliance since 2009.
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 COEUR D ALENE CITY OF
Is COEUR D ALENE CITY OF water safe to drink?
COEUR D ALENE CITY OF water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 89 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has COEUR D ALENE CITY OF detected?
66 contaminants were tested in COEUR D ALENE CITY OF's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does COEUR D ALENE CITY OF have any EPA violations?
Yes, COEUR D ALENE CITY OF has 89 EPA violation(s) on record, with the most recent in 2009. Violation types include MR, MCL. 2 are health-based violations.
How many people does COEUR D ALENE CITY OF serve?
COEUR D ALENE CITY OF serves approximately 54,115 people, Idaho.
What type of water does COEUR D ALENE CITY OF provide?
COEUR D ALENE CITY OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is ID1280053.
How does COEUR D ALENE CITY OF compare to other utilities in Idaho?
COEUR D ALENE CITY OF scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Idaho state page for a full comparison of water systems.