Home hazard report for 55170 — Saint Paul, MN
ZIP 55170 is served by Saint Paul Regional Water Services: 1 violation since 2016, latest lead result 10 ppb, PFAS 2 detected. Ramsey is in EPA radon zone 1.
Health-based violations since 2016: Lead and Copper Rule. All are listed as resolved.
90th-percentile lead in the latest round (Jan 2026). Lead comes mostly from household plumbing and service lines, so individual homes can be higher.
PFAS were detected, with PFOA and PFOS below 4.0 ppt (highest not detected).
Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.
The nearest active Superfund site is 3.5 miles away.
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Where ZIP 55170 is
blue: utility service area · scroll or pinch to zoomDrinking water: Saint Paul Regional Water Services
Health-based violations
| Contaminant or rule | Health-based violations since 2016 |
|---|---|
| Lead and Copper Rule | 1 |
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 2022.
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 | 20.2 ppt | 4 of 4 | — |
| PFPeA | 3 ppt | 2 of 4 | — |
| PFBS | not detected | 0 of 4 | — |
| PFHpA | not detected | 0 of 4 | — |
| PFOA | not detected | 0 of 4 | 4 ppt MCL |
| PFHxS | not detected | 0 of 4 | — |
| PFOS | not detected | 0 of 4 | 4 ppt MCL |
| PFDA | not detected | 0 of 4 | — |
| PFHxA | not detected | 0 of 4 | — |
| PFNA | not detected | 0 of 4 | — |
| HFPO-DA (GenX) | not detected | 0 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 Ramsey
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
| Site | Status | Distance |
|---|---|---|
| Koppers Coke St. Paul, Minnesota · EPA ID MND000819359 | Active (final NPL) | 3.5 mi |
| Southeast Hennepin Area Groundwater and Vapor Minneapolis, Minnesota · EPA ID MNN000506043 | Active (final NPL) | 7.0 mi |
| General Mills/Henkel Corp. Minneapolis, Minnesota · EPA ID MND051441731 | Active (final NPL) | 7.1 mi |
| Oakdale Dump Oakdale, Minnesota · EPA ID MND980609515 | Active (final NPL) | 7.3 mi |
| South Minneapolis Residential Soil Contamination Minneapolis, Minnesota · EPA ID MNN000509136 | Active (final NPL) | 7.3 mi |
| Twin Cities Air Force Reserve Base (Small Arms Range Landfill) Minneapolis, Minnesota · EPA ID MN8570024275 | Cleaned up & deleted | 7.8 mi |
| MacGillis & Gibbs/Bell Lumber & Pole Co. New Brighton, Minnesota · EPA ID MND006192694 | Active (final NPL) | 9.1 mi |
| Washington County Landfill Lake Elmo, Minnesota · EPA ID MND980704738 | Cleaned up & deleted | 9.6 mi |
| Union Scrap Iron & Metal Co. Minneapolis, Minnesota · EPA ID MND022949192 | Cleaned up & deleted | 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 55170
Who supplies drinking water to ZIP 55170?
Saint Paul Regional Water Services (EPA ID MN1620026), a surface water (rivers, lakes) system serving about 392,529 people.
Is there lead in Saint Paul, MN tap water?
The utility’s latest 90th-percentile lead result (Jan 2026) was 10 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?
PFAS were detected, with PFOA and PFOS below 4.0 ppt (highest not detected).
Has the water system in 55170 had violations?
Health-based violations since 2016: Lead and Copper Rule. All are listed as resolved.
Are there Superfund sites near 55170?
The nearest active Superfund site is 3.5 miles away. Sites within 10 miles: Koppers Coke (3.5 mi, Active (final NPL)); Southeast Hennepin Area Groundwater and Vapor (7.0 mi, Active (final NPL)); General Mills/Henkel Corp. (7.1 mi, Active (final NPL)).
Is radon a problem in Ramsey?
Ramsey is in EPA radon zone 1 (highest potential). Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.