Sioux Falls, SD Water Quality (ZIP 57106)

Quick Answers

Is ZIP 57106 tap water safe to drink? PFAS compounds have been detected in 57106's water at an average of 0.01 ppt across 1 compound. A certified pitcher filter or reverse osmosis system is recommended, especially for sensitive populations.

What filter should I use in 57106? Match the filter to the data: reverse osmosis handles PFAS, lead, and arsenic together; NSF-53 pitchers cover the taps you drink from. A basic Brita pitcher will not remove PFAS.

ZIP 57106 Water Quality Summary

EPA testing has detected PFAS "forever chemicals" in the water system serving ZIP 57106 (Sioux Falls, SD). Monitoring found a peak of 0.01 ppt across 1 system, averaging 0.01 ppt over 1 detected compound.

Contamination Level: LOW – Low contamination – PFAS detected but at lower levels; monitoring continues.

Top Detected Compounds in ZIP 57106

• PFBA: 0.01 ppt

Lead in ZIP 57106 Water

EPA Lead and Copper Rule testing recorded 13 lead samples for the system serving 57106, with a 90th-percentile high of 0.006 mg/L (within the EPA 0.015 mg/L action level). There is no safe level of lead for children; homes built before 1986 should use a certified NSF/ANSI 53 lead filter.

EPA Violations Affecting ZIP 57106

The water system serving 57106 has 1 health-based EPA Safe Drinking Water Act violation on record, including Combined Radium. A health-based violation means a contaminant exceeded its federal limit or required treatment was not applied.

About the Data

These figures come from EPA UCMR5 (2023-2025) plus Lead and Copper Rule and SDWIS records for the public water system serving ZIP 57106. UCMR5 is the most comprehensive national drinking water survey in US history.

Beyond water: other exposures in Sioux Falls, SD

Drinking water is one exposure route. These are the other federal datasets that cover ZIP 57106 and Minnehaha County, SD.

Radon risk in Minnehaha County, SD

The EPA places Minnehaha County, SD in Zone 1 - the EPA's highest-risk category, where the predicted average indoor radon level is above 4 pCi/L. Zone maps predict the radon potential of an area from geology and existing indoor readings - they do not describe any individual home. Radon is the leading cause of lung cancer among people who have never smoked, and the only way to know your own level is a test kit.

Lead paint risk in Minnehaha County, SD

Census figures show 44% of homes in Minnehaha County, SD were built before 1980, and 15% before 1950. Lead-based paint was banned for residential use in 1978, so older housing stock is the strongest available proxy for lead-paint exposure. This is a statistic about the county's housing, not a test of any particular property - if your home predates 1980, a lead swab test is the way to check.

Air quality in Minnehaha County, SD

Modelled annual fine-particle pollution (PM2.5) for Minnehaha County, SD averages 5.3 µg/m³, within the EPA's annual PM2.5 standard of 9 µg/m³. PM2.5 is the pollution fraction small enough to reach deep into the lungs. These are CDC modelled estimates for the county as a whole, not a reading taken at this ZIP code.