A81/100
CITY OF JACKSON — Water Quality Report 2026
Serving 5,019 people · California
Water Source
Purchased Surface Water
County
—
System ID
CA0310001
Violations
7
Contaminant Test Results
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
1
Health-Related
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: January 1, 2022 – March 31, 2022Rule: Stage 2 DBPREnforcement: 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 CITY OF JACKSON
Is CITY OF JACKSON water safe to drink?
CITY OF JACKSON water receives a grade of A (81/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has CITY OF JACKSON detected?
31 contaminants were tested in CITY OF JACKSON's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does CITY OF JACKSON have any EPA violations?
Yes, CITY OF JACKSON has 7 EPA violation(s) on record, with the most recent in 2022. Violation types include MCL, TT, MR. 3 are health-based violations.
How many people does CITY OF JACKSON serve?
CITY OF JACKSON serves approximately 5,019 people, California. The system provides water to 1 community: Jackson.
What type of water does CITY OF JACKSON provide?
CITY OF JACKSON 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 CA0310001.
How does CITY OF JACKSON compare to other utilities in California?
CITY OF JACKSON 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.