C48/100
TRINIDAD, CITY OF — Water Quality Report 2026
Serving 1,072 people · California
Water Source
Surface Water
County
—
System ID
CA1210018
Violations
13
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 19.00 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: April 1, 2024 – May 1, 2024Rule: 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 TRINIDAD, CITY OF
Is TRINIDAD, CITY OF water safe to drink?
TRINIDAD, CITY OF water receives a grade of C (48/100), which is considered fair. 1 contaminant(s) exceed EPA legal limits and 13 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has TRINIDAD, CITY OF detected?
2 contaminants were tested in TRINIDAD, 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 TRINIDAD, CITY OF have any EPA violations?
Yes, TRINIDAD, CITY OF has 13 EPA violation(s) on record, with the most recent in 2024. Violation types include MON, MR, MRDL. 7 are health-based violations.
How many people does TRINIDAD, CITY OF serve?
TRINIDAD, CITY OF serves approximately 1,072 people, California. The system provides water to 1 community: Trinidad.
What type of water does TRINIDAD, CITY OF provide?
TRINIDAD, 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 CA1210018.
How does TRINIDAD, CITY OF compare to other utilities in California?
TRINIDAD, CITY OF scores 48/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our California state page for a full comparison of water systems.