A87/100
LAKEPORT, CITY OF — Water Quality Report 2026
Serving 4,762 people · California
Water Source
Surface Water
County
—
System ID
CA1710004
Violations
5
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.40 mg/L | 1.30 mg/L | Over Limit |
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 LAKEPORT, CITY OF
Is LAKEPORT, CITY OF water safe to drink?
LAKEPORT, CITY OF water receives a grade of A (87/100), which is considered excellent. Out of 32 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has LAKEPORT, CITY OF detected?
32 contaminants were tested in LAKEPORT, CITY OF's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does LAKEPORT, CITY OF have any EPA violations?
Yes, LAKEPORT, CITY OF has 5 EPA violation(s) on record, with the most recent in 2009. Violation types include MR, Other.
How many people does LAKEPORT, CITY OF serve?
LAKEPORT, CITY OF serves approximately 4,762 people, California. The system provides water to 1 community: Lakeport.
What type of water does LAKEPORT, CITY OF provide?
LAKEPORT, 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 CA1710004.
How does LAKEPORT, CITY OF compare to other utilities in California?
LAKEPORT, CITY OF scores 87/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our California state page for a full comparison of water systems.