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

Home hazard report for 55593 — Maple Plain, MN

ZIP 55593 is served by Plymouth: no health-based violations since 2016, latest lead result 2 ppb, PFAS 1 detected. Hennepin is in EPA radon zone 1.

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Where ZIP 55593 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: Plymouth

EPA IDMN1270044
People served76,546
Sourcegroundwater (wells)
Connections24,832

Health-based violations

No health-based violations reported since 2016.

Full record for Plymouth →

Lead

Jan 20222 ppb
Jan 20193 ppb
Jan 20163 ppb
Jan 20132 ppb
Jan 20104 ppb
Jan 20072 ppb
Jan 20043 ppb
Jan 20033 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
PFBA19.1 ppt4 of 4—
PFPeAnot detected0 of 4—
PFHxAnot detected0 of 4—
PFOSnot detected0 of 44 ppt MCL
PFBSnot detected0 of 4—
PFHpAnot detected0 of 4—
PFNAnot detected0 of 4—
HFPO-DA (GenX)not detected0 of 4—
PFOAnot detected0 of 44 ppt MCL
PFDAnot detected0 of 4—
PFHxSnot detected0 of 4—

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 Hennepin

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
Joslyn Manufacturing & Supply Co.
Brooklyn Center, Minnesota · EPA ID MND044799856
Active (final NPL)7.1 mi
Reilly Tar & Chemical Corp. (St. Louis Park Plant)
St. Louis Park, Minnesota · EPA ID MND980609804
Active (final NPL)7.1 mi
NL Industries/Taracorp/Golden Auto
St. Louis Park, Minnesota · EPA ID MND097891634
Cleaned up & deleted7.6 mi
Highway 100 and County Road 3 Groundwater Plume
Edina, St. Louis Park, Minnesota · EPA ID MNN000506121
Active (final NPL)7.7 mi
Union Scrap Iron & Metal Co.
Minneapolis, Minnesota · EPA ID MND022949192
Cleaned up & deleted9.5 mi
Spring Park Municipal Well Field
Spring Park, Minnesota · EPA ID MNN000502963
Active (final NPL)9.6 mi
Whittaker Corp.
Minneapolis, Minnesota · EPA ID MND006252233
Cleaned up & deleted9.8 mi
FMC Corp. (Fridley Plant)
Fridley, Minnesota · EPA ID MND006481543
Active (final NPL)10.0 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 55593

Who supplies drinking water to ZIP 55593?

Plymouth (EPA ID MN1270044), a groundwater (wells) system serving about 76,546 people.

Is there lead in Maple Plain, MN tap water?

The utility’s latest 90th-percentile lead result (Jan 2022) 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 Maple Plain, MN water have PFAS?

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

Has the water system in 55593 had violations?

No health-based violations reported since 2016.

Are there Superfund sites near 55593?

The nearest active Superfund site is 7.1 miles away. Sites within 10 miles: Joslyn Manufacturing & Supply Co. (7.1 mi, Active (final NPL)); Reilly Tar & Chemical Corp. (St. Louis Park Plant) (7.1 mi, Active (final NPL)); NL Industries/Taracorp/Golden Auto (7.6 mi, Cleaned up & deleted).

Is radon a problem in Hennepin?

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