A81/100
AWA, TANNER — Water Quality Report 2026
Serving 4,940 people · California
Water Source
Surface Water
County
—
System ID
CA0310003
Violations
7
Contaminant Test Results
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: December 1, 2024 – December 31, 2024Rule: Total Coliform RuleEnforcement: Formal — state order issuedVerify on EPA.gov
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 AWA, TANNER
Is AWA, TANNER water safe to drink?
AWA, TANNER water receives a grade of A (81/100), which is considered excellent. Out of 34 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has AWA, TANNER detected?
34 contaminants were tested in AWA, TANNER's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does AWA, TANNER have any EPA violations?
Yes, AWA, TANNER has 7 EPA violation(s) on record, with the most recent in 2024. Violation types include MON, TT, MR. 3 are health-based violations.
How many people does AWA, TANNER serve?
AWA, TANNER serves approximately 4,940 people, California.
What type of water does AWA, TANNER provide?
AWA, TANNER 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 CA0310003.
How does AWA, TANNER compare to other utilities in California?
AWA, TANNER scores 81/100 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.