A81/100
CITY OF MOUNTAIN VIEW — Water Quality Report 2026
Serving 81,501 people · California
Water Source
Purchased Surface Water
County
—
System ID
CA4310007
Violations
7
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2015.
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 MOUNTAIN VIEW
Is CITY OF MOUNTAIN VIEW water safe to drink?
CITY OF MOUNTAIN VIEW water receives a grade of A (81/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has CITY OF MOUNTAIN VIEW detected?
69 contaminants were tested in CITY OF MOUNTAIN VIEW's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does CITY OF MOUNTAIN VIEW have any EPA violations?
Yes, CITY OF MOUNTAIN VIEW has 7 EPA violation(s) on record, with the most recent in 2015. Violation types include TT, MR, Other. 3 are health-based violations.
How many people does CITY OF MOUNTAIN VIEW serve?
CITY OF MOUNTAIN VIEW serves approximately 81,501 people, California. The system provides water to 1 community: Mountain View.
What type of water does CITY OF MOUNTAIN VIEW provide?
CITY OF MOUNTAIN VIEW 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 CA4310007.
How does CITY OF MOUNTAIN VIEW compare to other utilities in California?
CITY OF MOUNTAIN VIEW 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.