Water Quality in Mammoth Lakes, CA
32 water systems serving 21,112 people
City Overview
Average lead detection across Mammoth Lakes water systems is 1.1 ppb (Low). The EPA action level is 15 ppb.
Violation Summary
| Total violations on record | 671 |
| Health-based violations | 83 |
| Lead action level violations | 0 |
| Open (unresolved) violations | 0 |
Water Systems in Mammoth Lakes
Frequently Asked Questions
Is Mammoth Lakes tap water safe to drink?
Mammoth Lakes tap water meets EPA standards for most contaminants. Review the individual water system pages below for the latest lead sample results and violation history.
What is the water quality in Mammoth Lakes, California?
Mammoth Lakes has 32 public water systems serving approximately 21,112 people. The average lead level across sampled systems is 1.1 ppb. There are 671 total violations on record.
Does Mammoth Lakes have lead in the water?
EPA monitoring data shows an average lead detection of 1.1 ppb across Mammoth Lakes's water systems. The EPA action level is 15 ppb. No lead action level violations are currently reported.
How many water utilities serve Mammoth Lakes?
32 public water systems are registered in Mammoth Lakes, California with the EPA Safe Drinking Water Information System. Together they serve approximately 21,112 people.