EPA data as of Oct 2026 · page updated 2026-10-29

Home hazard report for 57220 — Bruce, SD

ZIP 57220 is served by Kingbrook I Rural Water System: no health-based violations since 2016, latest lead result 2 ppb, PFAS not detected. Brookings County is in EPA radon zone 1.

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Where ZIP 57220 is

Dashed: ZIP area · blue: utility service area · scroll or pinch to zoom
ZIP code areaZIP center Water utility service area PFOA/PFOS ≥ 4 ppt Lead > 15 ppb 5+ violations Superfund site (active) proposed cleaned up Circles: other water systems flagged nearby; size = people served. Tap any symbol for details.

Drinking water: Kingbrook I Rural Water System

EPA IDSD4600431
People served6,455
Sourcegroundwater (wells)
Connections2,750

Health-based violations

No health-based violations reported since 2016.

Full record for Kingbrook I Rural Water System →

Other systems overlapping this ZIP: Brookings-Deuel Rural Water System.

Lead

Jan 20242 ppb
Jan 20212 ppb
Jan 20184 ppb
Jan 20153 ppb
Jan 20124 ppb
Jan 20093 ppb
Jan 20064 ppb
Jan 20037 ppb

90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.

PFAS (“forever chemicals”)

CompoundHighest resultSamples with detectionEPA limit
PFBSnot detected0 of 2—
PFPeAnot detected0 of 2—
PFBAnot detected0 of 2—
HFPO-DA (GenX)not detected0 of 2—
PFNAnot detected0 of 2—
PFHxAnot detected0 of 2—
PFHpAnot detected0 of 2—
PFDAnot detected0 of 2—
PFOAnot detected0 of 24 ppt MCL
PFOSnot detected0 of 24 ppt MCL
PFHxSnot detected0 of 2—

EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR 5), samples 2023–2025; ppt = parts per trillion (ng/L). The 4.0 ppt maximum contaminant levels for PFOA and PFOS were set by EPA in 2024; water systems have until the end of the decade to comply.

Radon in Brookings County

EPA radon zone 1 — highest potential. Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.

Radon is a colorless, odorless radioactive gas from soil and rock, and the leading cause of lung cancer among non-smokers. EPA recommends fixing a home at 4 pCi/L or above and considering it from 2 pCi/L. A short-term test kit costs about $15–30. How radon zones work →

Natural hazard risk

FEMA rates the overall natural-hazard risk of this neighborhood (census tract) as Relatively High, with very low social vulnerability and relatively moderate community resilience.

Cold waveVery High
HailVery High
TornadoVery High
Winter weatherVery High
Ice stormRelatively High
Riverine floodingRelatively High
Strong windRelatively High
WildfireRelatively Moderate
DroughtRelatively Low
Heat waveRelatively Low
LandslideRelatively Low
LightningRelatively Low
EarthquakeVery Low

FEMA National Risk Index (December 2025): expected annual losses from each hazard combined with social vulnerability and community resilience, rated relative to all U.S. census tracts. Hazards not listed are not applicable here. It describes the area, not a single building; flood insurance maps (FEMA FIRMs) decide flood-insurance requirements.

Live conditions: river gauges and flood levels · tornado warnings · wildfire detections · earthquakes — our sister maps, updated from NOAA, USGS and NASA every few minutes.

Superfund sites nearby

No site on EPA’s Superfund National Priorities List lies within 10 miles of the center of this ZIP code.

EPA Superfund National Priorities List (NPL): the country’s most serious known hazardous-waste sites, each with an EPA cleanup record (linked). Distance is measured from the ZIP center to the site’s reference point; being near a site does not by itself mean exposure — EPA site pages describe what was found and how it is being cleaned up.

Buying a home in Bruce? See the 2026 conforming, FHA and jumbo loan limits for Brookings County →

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions about 57220

Who supplies drinking water to ZIP 57220?

Kingbrook I Rural Water System (EPA ID SD4600431), a groundwater (wells) system serving about 6,455 people.

Is there lead in Bruce, SD tap water?

The utility’s latest 90th-percentile lead result (Jan 2024) was 2 ppb; EPA’s action level is 15 ppb, falling to 10 ppb from 2027. Lead mostly comes from service lines and home plumbing, so the only way to know your tap is to test it.

Does Bruce, SD water have PFAS?

None of the tested PFAS were found above EPA’s reporting limits in 2023–2025.

Has the water system in 57220 had violations?

No health-based violations reported since 2016.

What natural hazards affect ZIP 57220?

FEMA’s National Risk Index rates the overall natural-hazard risk here as Relatively High; the highest-rated hazards are cold wave (very high), hail (very high), tornado (very high).

Are there Superfund sites near 57220?

No active Superfund site within 10 miles of the ZIP center.

Is radon a problem in Brookings County?

Brookings County is in EPA radon zone 1 (highest potential). Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.