B60/100
LITTLE POTATO SLOUGH MUTUAL — Water Quality Report 2026
Serving 1,510 people · California
Water Source
Surface Water
County
—
System ID
CA3910022
Violations
20
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: October 1, 2021 – December 31, 2021Rule: 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 LITTLE POTATO SLOUGH MUTUAL
Is LITTLE POTATO SLOUGH MUTUAL water safe to drink?
LITTLE POTATO SLOUGH MUTUAL water receives a grade of B (60/100), which is considered good. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has LITTLE POTATO SLOUGH MUTUAL detected?
1 contaminants were tested in LITTLE POTATO SLOUGH MUTUAL's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does LITTLE POTATO SLOUGH MUTUAL have any EPA violations?
Yes, LITTLE POTATO SLOUGH MUTUAL has 20 EPA violation(s) on record, with the most recent in 2021. Violation types include MCL, Other, MR. 5 are health-based violations.
How many people does LITTLE POTATO SLOUGH MUTUAL serve?
LITTLE POTATO SLOUGH MUTUAL serves approximately 1,510 people, California.
What type of water does LITTLE POTATO SLOUGH MUTUAL provide?
LITTLE POTATO SLOUGH MUTUAL 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 CA3910022.
How does LITTLE POTATO SLOUGH MUTUAL compare to other utilities in California?
LITTLE POTATO SLOUGH MUTUAL scores 60/100 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.