A98/100
PLUMAS LAKE — Water Quality Report 2026
Serving 10,464 people · California
Water Source
Groundwater
County
—
System ID
CA5805001
Violations
2
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2005.
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 PLUMAS LAKE
Is PLUMAS LAKE water safe to drink?
PLUMAS LAKE water receives a grade of A (98/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has PLUMAS LAKE detected?
31 contaminants were tested in PLUMAS LAKE's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does PLUMAS LAKE have any EPA violations?
Yes, PLUMAS LAKE has 2 EPA violation(s) on record, with the most recent in 2005. Violation types include MR.
How many people does PLUMAS LAKE serve?
PLUMAS LAKE serves approximately 10,464 people, California.
What type of water does PLUMAS LAKE provide?
PLUMAS LAKE sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA5805001.
How does PLUMAS LAKE compare to other utilities in California?
PLUMAS LAKE scores 98/100 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.