A89/100
TWAIN HARTE COMMUNITY SERVICES DISTRICT — Water Quality Report 2026
Serving 2,378 people · California
Water Source
Surface Water
County
—
System ID
CA5510005
Violations
3
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2004.
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 TWAIN HARTE COMMUNITY SERVICES DISTRICT
Is TWAIN HARTE COMMUNITY SERVICES DISTRICT water safe to drink?
TWAIN HARTE COMMUNITY SERVICES DISTRICT water receives a grade of A (89/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has TWAIN HARTE COMMUNITY SERVICES DISTRICT detected?
1 contaminants were tested in TWAIN HARTE COMMUNITY SERVICES DISTRICT's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does TWAIN HARTE COMMUNITY SERVICES DISTRICT have any EPA violations?
Yes, TWAIN HARTE COMMUNITY SERVICES DISTRICT has 3 EPA violation(s) on record, with the most recent in 2004. Violation types include TT, Other. 2 are health-based violations.
How many people does TWAIN HARTE COMMUNITY SERVICES DISTRICT serve?
TWAIN HARTE COMMUNITY SERVICES DISTRICT serves approximately 2,378 people, California.
What type of water does TWAIN HARTE COMMUNITY SERVICES DISTRICT provide?
TWAIN HARTE COMMUNITY SERVICES DISTRICT 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 CA5510005.
How does TWAIN HARTE COMMUNITY SERVICES DISTRICT compare to other utilities in California?
TWAIN HARTE COMMUNITY SERVICES DISTRICT scores 89/100 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.