A100/100
MOULTON NIGUEL WATER DISTRICT — Water Quality Report 2026
Serving 170,236 people · California
Water Source
Purchased Surface Water
County
—
System ID
CA3010073
Violations
0
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 260.00 µg/L | — | Above Goal |
EPA Violation History
No violations in the past 5 years
This system has a clean compliance history.
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 MOULTON NIGUEL WATER DISTRICT
Is MOULTON NIGUEL WATER DISTRICT water safe to drink?
MOULTON NIGUEL WATER DISTRICT water receives a grade of A (100/100), which is considered excellent. Out of 76 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has MOULTON NIGUEL WATER DISTRICT detected?
76 contaminants were tested in MOULTON NIGUEL WATER DISTRICT's water. Notable contaminants include chlorate. No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does MOULTON NIGUEL WATER DISTRICT have any EPA violations?
No, MOULTON NIGUEL WATER DISTRICT has zero EPA violations on record. This indicates consistent compliance with federal drinking water standards.
How many people does MOULTON NIGUEL WATER DISTRICT serve?
MOULTON NIGUEL WATER DISTRICT serves approximately 170,236 people, California.
What type of water does MOULTON NIGUEL WATER DISTRICT provide?
MOULTON NIGUEL WATER DISTRICT 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 CA3010073.
How does MOULTON NIGUEL WATER DISTRICT compare to other utilities in California?
MOULTON NIGUEL WATER DISTRICT scores 100/100 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.