Sioux Falls
Is Sioux Falls tap water safe to drink?
Mostly yes — Sioux Falls scores 98/100. This report aggregates EPA drinking water data across 1 local system in Sioux Falls. We found 0 total violations (0 unresolved).
Real-Time Environment
Live: 05:45 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Sioux Falls.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Sioux Falls?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Filter or no filter for Sioux Falls water? Here's what the data says.
Baby Formula Safety
What new parents in Sioux Falls should know about tap water safety.
Homebuyer's Perspective
Water quality is easy to overlook when evaluating a move to Sioux Falls, but it can affect plumbing longevity and appliance lifespan. The high safety score (98/100) suggests lower risk for plumbing corrosion and appliance scaling.
Health & Family Safety
Residents should monitor PFOS (Perfluorooctane Sulfonate) levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.
View Health Risk Glossary →Compliance Record for Sioux Falls
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Sioux Falls.
Frequently Asked Questions
Is Sioux Falls tap water safe to drink?
Mostly yes — Sioux Falls scores 98/100.
How many water systems serve Sioux Falls?
Sioux Falls is served by 1 public water system in our latest EPA-backed dataset.
How can I check water quality for my exact address in Sioux Falls?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Sioux Falls.
What is the water quality score for Sioux Falls?
The water quality score for Sioux Falls is 98 out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.
What are the top contaminants in Sioux Falls?
The top contaminants detected in Sioux Falls include PFOS (Perfluorooctane Sulfonate), Lead, Barium. View detailed information on our contaminants page.
Sioux Falls Water Quality Summary
Sioux Falls, SD receives a water quality score of 98/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 2 public water systems serving the area.
Sioux Falls'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.
Sioux Falls's score of 98 is 7 points above the South Dakota state average of 91, and above the nationwide average of roughly 78/100 across all U.S. states.
For residents and prospective homebuyers in Sioux Falls, South Dakota, this mid-size Great Plains city offers tap water with near-perfect cleanliness ratings. The drinking water, sourced from regional groundwater aquifers and distributed across a couple of systems, demonstrates excellent treatment standards that successfully navigate the challenges of an agricultural environment. This top-tier performance highlights a reliable utility infrastructure capable of delivering exceptionally clean groundwater directly to local taps.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our South Dakota water quality rankings report →
Key Contaminants
Get notified if Sioux Falls's water quality changes
Free email alert when the EPA reports a new violation or boil-water advisory for your water system. No spam — just the alerts you asked for.
By subscribing you agree to receive occasional water-quality alert emails. Unsubscribe anytime. See our Privacy Policy.
Water Systems Serving Sioux Falls (1)
Check Your Specific Address
Water quality can vary by neighborhood in Sioux Falls.
Related
Quick compare in South Dakota
Compare Sioux Falls water quality: View all states · Contaminant library · How we score water quality