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

Home hazard report for 53008 — Brookfield, WI

ZIP 53008 is served by Brookfield Water Utility: 7 violations since 2016, latest lead result 1.5 ppb, PFAS 4 detected. Waukesha is in EPA radon zone 1.

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Where ZIP 53008 is

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: Brookfield Water Utility

EPA IDWI2680253
People served29,070
Sourcegroundwater (wells)
Connections10,766

Health-based violations

Contaminant or ruleHealth-based violations since 2016
Combined Radium (-226 and -228)7

A health-based violation means a contaminant exceeded its legal limit (MCL) or a required treatment technique was not met, as reported by the state to EPA’s SDWIS. All are listed as resolved or archived; the latest began Apr 2020.

Full record for Brookfield Water Utility →

Lead

Jun 20231.5 ppb
Jul 20201.6 ppb
Jun 20192.5 ppb
Jun 201613 ppb
Jun 20132.5 ppb
Jan 20104.6 ppb
Jan 20073.5 ppb
Jan 20043.5 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
PFBS4.7 ppt4 of 34—
PFPeA4.4 ppt6 of 34—
PFHxA3.3 ppt1 of 34—
PFHxS3.2 ppt2 of 34—
HFPO-DA (GenX)not detected0 of 34—
PFDAnot detected0 of 34—
PFNAnot detected0 of 34—
PFOSnot detected0 of 344 ppt MCL
PFOAnot detected0 of 344 ppt MCL
PFBAnot detected0 of 34—
PFHpAnot detected0 of 34—

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 Waukesha

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 →

Superfund sites nearby

SiteStatusDistance
Waste Management of Wisconsin, Inc. (Brookfield Sanitary Landfill)
Brookfield, Wisconsin · EPA ID WID980901235
Active (final NPL)2.3 mi
Master Disposal Service Landfill
Brookfield, Wisconsin · EPA ID WID980820070
Active (final NPL)3.6 mi
Lauer I Sanitary Landfill
Menomonee Falls, Wisconsin · EPA ID WID058735994
Active (final NPL)8.6 mi
Moss-American Co., Inc. (Kerr-McGee Oil Co.)
Milwaukee, Wisconsin · EPA ID WID039052626
Active (final NPL)8.7 mi
Omega Hills North Landfill
Germantown, Wisconsin · EPA ID WID000808568
Cleaned up & deleted9.4 mi

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.

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 53008

Who supplies drinking water to ZIP 53008?

Brookfield Water Utility (EPA ID WI2680253), a groundwater (wells) system serving about 29,070 people.

Is there lead in Brookfield, WI tap water?

The utility’s latest 90th-percentile lead result (Jun 2023) was 1.5 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 Brookfield, WI water have PFAS?

PFAS were detected, with PFOA and PFOS below 4.0 ppt (highest not detected).

Has the water system in 53008 had violations?

Health-based violations since 2016: Combined Radium (-226 and -228). All are listed as resolved.

Are there Superfund sites near 53008?

Active or proposed Superfund (National Priorities List) sites near the center of this ZIP code. Sites within 10 miles: Waste Management of Wisconsin, Inc. (Brookfield Sanitary Landfill) (2.3 mi, Active (final NPL)); Master Disposal Service Landfill (3.6 mi, Active (final NPL)); Lauer I Sanitary Landfill (8.6 mi, Active (final NPL)).

Is radon a problem in Waukesha?

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