D34/100
IMPERIAL, CITY OF — Water Quality Report 2026
Serving 21,591 people · California
Water Source
Purchased Surface Water
County
—
System ID
CA1310006
Violations
19
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 280.00 µg/L | — | Above Goal |
EPA Violation History
3
Violations (last 5yr)
2
Unresolved
1
Health-Related
TIER 3Unresolved
Reporting violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
TIER 2Unresolved
Treatment technique violation
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2024 – July 15, 2024Enforcement: 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 IMPERIAL, CITY OF
Is IMPERIAL, CITY OF water safe to drink?
IMPERIAL, CITY OF water receives a grade of D (34/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 19 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has IMPERIAL, CITY OF detected?
69 contaminants were tested in IMPERIAL, CITY OF's water. Notable contaminants include chlorate. No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does IMPERIAL, CITY OF have any EPA violations?
Yes, IMPERIAL, CITY OF has 19 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, TT, Other. 11 are health-based violations.
How many people does IMPERIAL, CITY OF serve?
IMPERIAL, CITY OF serves approximately 21,591 people, California. The system provides water to 1 community: Imperial.
What type of water does IMPERIAL, CITY OF provide?
IMPERIAL, CITY OF sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is CA1310006.
How does IMPERIAL, CITY OF compare to other utilities in California?
IMPERIAL, CITY OF scores 34/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our California state page for a full comparison of water systems.