A91/100
CITY OF SHASTA LAKE — Water Quality Report 2026
Serving 10,657 people · California
Water Source
Surface Water
County
—
System ID
CA4510006
Violations
2
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1993.
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 CITY OF SHASTA LAKE
Is CITY OF SHASTA LAKE water safe to drink?
CITY OF SHASTA LAKE water receives a grade of A (91/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has CITY OF SHASTA LAKE detected?
69 contaminants were tested in CITY OF SHASTA LAKE's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CITY OF SHASTA LAKE have any EPA violations?
Yes, CITY OF SHASTA LAKE has 2 EPA violation(s) on record, with the most recent in 1993. Violation types include MR, TT. 1 are health-based violations.
How many people does CITY OF SHASTA LAKE serve?
CITY OF SHASTA LAKE serves approximately 10,657 people, California. The system provides water to 1 community: Shasta Lake 4510007.
What type of water does CITY OF SHASTA LAKE provide?
CITY OF SHASTA LAKE 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 CA4510006.
How does CITY OF SHASTA LAKE compare to other utilities in California?
CITY OF SHASTA LAKE scores 91/100 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.