A84/100
GRANITE FALLS CITY OF — Water Quality Report 2026
Serving 6,926 people · Washington
Water Source
Purchased Surface Water
County
—
System ID
WA5329050
Violations
5
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.40 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2014.
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 GRANITE FALLS CITY OF
Is GRANITE FALLS CITY OF water safe to drink?
GRANITE FALLS CITY OF water receives a grade of A (84/100), which is considered excellent. Out of 32 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has GRANITE FALLS CITY OF detected?
32 contaminants were tested in GRANITE FALLS CITY OF's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does GRANITE FALLS CITY OF have any EPA violations?
Yes, GRANITE FALLS CITY OF has 5 EPA violation(s) on record, with the most recent in 2014. Violation types include MR, Other.
How many people does GRANITE FALLS CITY OF serve?
GRANITE FALLS CITY OF serves approximately 6,926 people, Washington.
What type of water does GRANITE FALLS CITY OF provide?
GRANITE FALLS CITY OF sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is WA5329050.
How does GRANITE FALLS CITY OF compare to other utilities in Washington?
GRANITE FALLS CITY OF scores 84/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Washington state page for a full comparison of water systems.