B70/100
DENAIR COMMUNITY SERVICES DISTRICT — Water Quality Report 2026
Serving 5,090 people · California
Water Source
Groundwater
County
—
System ID
CA5010021
Violations
18
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2014.
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 DENAIR COMMUNITY SERVICES DISTRICT
Is DENAIR COMMUNITY SERVICES DISTRICT water safe to drink?
DENAIR COMMUNITY SERVICES DISTRICT water receives a grade of B (70/100), which is considered good. Out of 31 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has DENAIR COMMUNITY SERVICES DISTRICT detected?
31 contaminants were tested in DENAIR COMMUNITY SERVICES DISTRICT's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does DENAIR COMMUNITY SERVICES DISTRICT have any EPA violations?
Yes, DENAIR COMMUNITY SERVICES DISTRICT has 18 EPA violation(s) on record, with the most recent in 2014. Violation types include MCL, MR, Other. 3 are health-based violations.
How many people does DENAIR COMMUNITY SERVICES DISTRICT serve?
DENAIR COMMUNITY SERVICES DISTRICT serves approximately 5,090 people, California.
What type of water does DENAIR COMMUNITY SERVICES DISTRICT provide?
DENAIR COMMUNITY SERVICES DISTRICT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA5010021.
How does DENAIR COMMUNITY SERVICES DISTRICT compare to other utilities in California?
DENAIR COMMUNITY SERVICES DISTRICT scores 70/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our California state page for a full comparison of water systems.