Water Quality in Rapid City, SD
143 water systems serving 110,697 people
City Overview
Average lead detection across Rapid City water systems is 4.2 ppb (Low). The EPA action level is 15 ppb. 3 systems have triggered action level violations.
Violation Summary
| Total violations on record | 8720 |
| Health-based violations | 1203 |
| Lead action level violations | 3 |
| Open (unresolved) violations | 0 |
Water Systems in Rapid City
Frequently Asked Questions
Is Rapid City tap water safe to drink?
Rapid City 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 Rapid City, South Dakota?
Rapid City has 143 public water systems serving approximately 110,697 people. The average lead level across sampled systems is 4.2 ppb. There are 8720 total violations on record.
Does Rapid City have lead in the water?
EPA monitoring data shows an average lead detection of 4.2 ppb across Rapid City's water systems. The EPA action level is 15 ppb. 3 systems have triggered lead action level violations.
How many water utilities serve Rapid City?
143 public water systems are registered in Rapid City, South Dakota with the EPA Safe Drinking Water Information System. Together they serve approximately 110,697 people.