A80/100
CUYAMACA WATER DISTRICT — Water Quality Report 2026
Serving 33,030 people · California
Water Source
Groundwater
County
—
System ID
CA3700074
Violations
16
Contaminant Test Results
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
1
Health-Related
TIER 1 — URGENTResolved
Maximum Contaminant Level Violation
When: September 1, 2022 – September 30, 2022Rule: Total Coliform RuleEnforcement: Formal — state order issued
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 CUYAMACA WATER DISTRICT
Is CUYAMACA WATER DISTRICT water safe to drink?
CUYAMACA WATER DISTRICT water receives a grade of A (80/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has CUYAMACA WATER DISTRICT detected?
1 contaminants were tested in CUYAMACA WATER DISTRICT's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does CUYAMACA WATER DISTRICT have any EPA violations?
Yes, CUYAMACA WATER DISTRICT has 16 EPA violation(s) on record, with the most recent in 2022. Violation types include MCL, MR, Other. 1 are health-based violations.
How many people does CUYAMACA WATER DISTRICT serve?
CUYAMACA WATER DISTRICT serves approximately 33,030 people, California.
What type of water does CUYAMACA WATER DISTRICT provide?
CUYAMACA WATER DISTRICT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA3700074.
How does CUYAMACA WATER DISTRICT compare to other utilities in California?
CUYAMACA WATER DISTRICT scores 80/100 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.