Water Quality in Castle Rock, CO
40 water systems serving 121,171 people
City Overview
Average lead detection across Castle Rock water systems is 2.8 ppb (Low). The EPA action level is 15 ppb. 1 system have triggered action level violations.
Violation Summary
| Total violations on record | 3774 |
| Health-based violations | 524 |
| Lead action level violations | 1 |
| Open (unresolved) violations | 0 |
Water Systems in Castle Rock
Frequently Asked Questions
Is Castle Rock tap water safe to drink?
Castle Rock 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 Castle Rock, Colorado?
Castle Rock has 40 public water systems serving approximately 121,171 people. The average lead level across sampled systems is 2.8 ppb. There are 3774 total violations on record.
Does Castle Rock have lead in the water?
EPA monitoring data shows an average lead detection of 2.8 ppb across Castle Rock's water systems. The EPA action level is 15 ppb. 1 system have triggered lead action level violations.
How many water utilities serve Castle Rock?
40 public water systems are registered in Castle Rock, Colorado with the EPA Safe Drinking Water Information System. Together they serve approximately 121,171 people.