B66/100
CITY OF ALTURAS — Water Quality Report 2026
Serving 2,715 people · California
Water Source
Groundwater
County
—
System ID
CA2510001
Violations
7
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | < 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
2
Unresolved
1
Health-Related
TIER 3Unresolved
Reporting violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
TIER 2Unresolved
Treatment technique violation
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 ALTURAS
Is CITY OF ALTURAS water safe to drink?
CITY OF ALTURAS water receives a grade of B (66/100), which is considered good. Out of 31 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has CITY OF ALTURAS detected?
31 contaminants were tested in CITY OF ALTURAS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CITY OF ALTURAS have any EPA violations?
Yes, CITY OF ALTURAS has 7 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, TT, MCL. 6 are health-based violations.
How many people does CITY OF ALTURAS serve?
CITY OF ALTURAS serves approximately 2,715 people, California. The system provides water to 1 community: Alturas.
What type of water does CITY OF ALTURAS provide?
CITY OF ALTURAS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA2510001.
How does CITY OF ALTURAS compare to other utilities in California?
CITY OF ALTURAS scores 66/100 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.