Rapid City
Is Rapid City tap water safe to drink?
Mostly yes — Rapid City scores 95/100. This report aggregates EPA drinking water data across 1 local system in Rapid City. We found 0 total violations (0 unresolved).
Real-Time Environment
Live: 02:45 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Rapid City.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Rapid City?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Should you buy a water purifier in Rapid City? See our analysis.
Baby Formula Safety
Is Rapid City tap water safe for infants? Critical safety guide.
Homebuyer's Perspective
For those looking to relocate to Rapid City, water quality is a key factor in long-term property maintenance. The high safety score (95/100) suggests lower risk for plumbing corrosion and appliance scaling.
Health & Family Safety
Residents should monitor Gross Alpha Particle Activity levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.
View Health Risk Glossary →Score Breakdown for Rapid City
*Scores are calculated using weighted EPA monitoring data from the past 5 years.
Frequently Asked Questions
Is Rapid City tap water safe to drink?
Mostly yes — Rapid City scores 95/100.
How many water systems serve Rapid City?
Rapid City is served by 1 public water system in our latest EPA-backed dataset.
How can I check water quality for my exact address in Rapid City?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Rapid City.
What is the water quality score for Rapid City?
The water quality score for Rapid City is N/A out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.
What are the top contaminants in Rapid City?
The top contaminants detected in Rapid City include Gross Alpha Particle Activity, Nitrite, Barium. View detailed information on our contaminants page.
Rapid City Water Quality Summary
Rapid City, SD receives a water quality score of 95/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 4 public water systems serving the area.
Rapid City's water quality is above the national average, with strong compliance records and low contaminant levels. Residents generally receive clean, safe tap water that meets EPA standards.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology →
Key Contaminants
Water Systems Serving Rapid City (1)
Check Your Specific Address
Water quality can vary by neighborhood in Rapid City.
Related
Quick compare in South Dakota
Compare Rapid City water quality: View all states · Contaminant library · How we score water quality