F0/100
RUBIDOUX COMMUNITY SD — Water Quality Report 2026
Serving 36,827 people · California
Water Source
Groundwater
County
—
System ID
CA3310044
Violations
54
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
1,4-dioxane | 0.730 µg/L | — | Above Goal |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2011.
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 RUBIDOUX COMMUNITY SD
Is RUBIDOUX COMMUNITY SD water safe to drink?
RUBIDOUX COMMUNITY SD water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 54 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has RUBIDOUX COMMUNITY SD detected?
66 contaminants were tested in RUBIDOUX COMMUNITY SD's water. Notable contaminants include Lead (90th percentile), 1,4-dioxane. No contaminants exceed EPA legal limits. 2 exceed EPA health goals (MCLGs).
Does RUBIDOUX COMMUNITY SD have any EPA violations?
Yes, RUBIDOUX COMMUNITY SD has 54 EPA violation(s) on record, with the most recent in 2011. Violation types include MR, MCL, Other. 49 are health-based violations.
How many people does RUBIDOUX COMMUNITY SD serve?
RUBIDOUX COMMUNITY SD serves approximately 36,827 people, California.
What type of water does RUBIDOUX COMMUNITY SD provide?
RUBIDOUX COMMUNITY SD sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA3310044.
How does RUBIDOUX COMMUNITY SD compare to other utilities in California?
RUBIDOUX COMMUNITY SD scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our California state page for a full comparison of water systems.