Home hazard report for 55109 — Saint Paul, MN
ZIP 55109 is served by North Saint Paul: no health-based violations since 2016, latest lead result 2 ppb, PFAS 4.2 ppt. Ramsey County is in EPA radon zone 1.
No health-based violations reported since 2016.
90th-percentile lead in the latest round (Jan 2023). Lead comes mostly from household plumbing and service lines, so individual homes can be higher.
Highest PFOA or PFOS result in EPA’s 2023–2025 testing was at or above 4.0 ppt, EPA’s 2024 maximum contaminant level for each. 3 PFAS compounds detected.
Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.
FEMA’s overall natural-hazard risk for this census tract, relative to the rest of the U.S.
The nearest active Superfund site is 3.1 miles away.
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Where ZIP 55109 is
Dashed: ZIP area · blue: utility service area · scroll or pinch to zoomDrinking water: North Saint Paul
Health-based violations
No health-based violations reported since 2016.
Full record for North Saint Paul →
Other systems overlapping this ZIP: Saint Paul Regional Water Services.
Lead
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”)
| Compound | Highest result | Samples with detection | EPA limit |
|---|---|---|---|
| PFBA | 85.1 ppt | 10 of 10 | — |
| PFOS | 4.2 ppt | 1 of 10 | 4 ppt MCL |
| PFHxS | 3.4 ppt | 1 of 10 | — |
| PFPeA | not detected | 0 of 10 | — |
| PFOA | not detected | 0 of 10 | 4 ppt MCL |
| PFHpA | not detected | 0 of 10 | — |
| HFPO-DA (GenX) | not detected | 0 of 10 | — |
| PFNA | not detected | 0 of 10 | — |
| PFDA | not detected | 0 of 10 | — |
| PFHxA | not detected | 0 of 10 | — |
| PFBS | not detected | 0 of 10 | — |
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 Ramsey 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 Low, with relatively low social vulnerability and very high community resilience.
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
| Site | Status | Distance |
|---|---|---|
| Oakdale Dump Oakdale, Minnesota · EPA ID MND980609515 | Active (final NPL) | 3.1 mi |
| Washington County Landfill Lake Elmo, Minnesota · EPA ID MND980704738 | Cleaned up & deleted | 5.3 mi |
| Koppers Coke St. Paul, Minnesota · EPA ID MND000819359 | Active (final NPL) | 6.9 mi |
| MacGillis & Gibbs/Bell Lumber & Pole Co. New Brighton, Minnesota · EPA ID MND006192694 | Active (final NPL) | 8.6 mi |
| New Brighton/Arden Hills/TCAAP (USARMY) New Brighton, Minnesota · EPA ID MN7213820908 | Active (final NPL) | 9.4 mi |
| Southeast Hennepin Area Groundwater and Vapor Minneapolis, Minnesota · EPA ID MNN000506043 | Active (final NPL) | 9.5 mi |
| Baytown Township Ground Water Plume Baytown Township, Minnesota · EPA ID MND982425209 | Active (final NPL) | 9.5 mi |
| General Mills/Henkel Corp. Minneapolis, Minnesota · EPA ID MND051441731 | Active (final NPL) | 9.8 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 55109
Who supplies drinking water to ZIP 55109?
North Saint Paul (EPA ID MN1620011), a groundwater (wells) system serving about 13,134 people.
Is there lead in Saint Paul, MN tap water?
The utility’s latest 90th-percentile lead result (Jan 2023) 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 Saint Paul, MN water have PFAS?
Highest PFOA or PFOS result in EPA’s 2023–2025 testing was at or above 4.0 ppt, EPA’s 2024 maximum contaminant level for each. 3 PFAS compounds detected.
Has the water system in 55109 had violations?
No health-based violations reported since 2016.
What natural hazards affect ZIP 55109?
FEMA’s National Risk Index rates the overall natural-hazard risk here as Relatively Low; the highest-rated hazards are cold wave (relatively high), hail (relatively moderate), heat wave (relatively moderate).
Are there Superfund sites near 55109?
The nearest active Superfund site is 3.1 miles away. Sites within 10 miles: Oakdale Dump (3.1 mi, Active (final NPL)); Washington County Landfill (5.3 mi, Cleaned up & deleted); Koppers Coke (6.9 mi, Active (final NPL)).
Is radon a problem in Ramsey County?
Ramsey County is in EPA radon zone 1 (highest potential). Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.