5 Hidden Environmental Risks That Can Kill a Property Deal

Home inspections check the roof, foundation, and HVAC. They don't check whether the gas station next door has been leaking petroleum into the groundwater for 15 years. These are the five environmental risks that don't show up in a standard inspection — but can cost you far more than a bad furnace.

1. Leaking Underground Storage Tanks (LUST)

Michigan has roughly 25,000 documented LUST incidents statewide. These are underground tanks — typically at gas stations, dry cleaners, and industrial sites — that have leaked petroleum products into the soil and groundwater. The contamination can spread hundreds of feet from the source and persist for decades.

Why it matters: If you're buying a home within 0.25 miles of an open LUST site — especially one relying on a private well — you have a real groundwater risk that affects property value, insurability, and your family's health. EGLE tracks every LUST site in Michigan. PropertySiteCheck screens all of them.

2. PFAS "Forever Chemical" Contamination

PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they don't break down naturally. Michigan has been at the forefront of PFAS contamination discovery, with plumes near military bases, airports, industrial facilities, and even firefighting training sites.

Why it matters: EPA regulations are tightening rapidly. Properties near PFAS contamination zones face potential value impacts, water treatment costs, and long-term health concerns. Our report screens EGLE's MPART PFAS registry within 0.50 miles of your property.

3. FEMA Flood Zones

If your property sits in a Special Flood Hazard Area (zones AE, A, or VE), you're required to carry flood insurance for any federally-backed mortgage. That's not optional — and premiums have been increasing under FEMA's Risk Rating 2.0 program. Some homeowners are seeing 2x–3x increases.

Why it matters: Flood zone status directly impacts your monthly costs and resale value. Sellers aren't always required to disclose it upfront. PropertySiteCheck screens both FEMA FIRM floodplain maps and the National Risk Index for your property's exact location.

4. Superfund and Brownfield Sites

Superfund sites (EPA National Priorities List) are the most severely contaminated locations in the country. Michigan has 66 active and proposed NPL sites. Brownfield sites — former industrial or commercial properties with known or suspected contamination — are even more common, particularly in urban areas.

Why it matters: Proximity to these sites affects property values, can create legal liability, and may impact financing. Our report screens Superfund sites within 1.0 mile and brownfields within 0.50 miles — the ASTM E1527-21 standard search radii.

5. Wetland Restrictions

Properties near wetlands face development restrictions under federal Section 404 (Army Corps of Engineers) and Michigan Part 303 (EGLE) permits. If you're planning additions, outbuildings, or land improvements, wetland proximity can significantly limit what you're allowed to build.

Why it matters: Wetland restrictions aren't visible from the street and don't show up in inspections. We screen the USFWS National Wetlands Inventory within 0.50 miles to identify nearby wetland features before you commit.

How to Check Before You Buy

All five of these risks are screened in a single PropertySiteCheck report. Enter any Michigan address, and in under 60 seconds you'll know which of 22 federal and state environmental databases flagged potential concerns. Each flagged indicator includes the facility name, distance from the property, regulatory status, and what it means for you.

At $99, it costs less than a home inspection and takes a fraction of the time. For buyers, agents, lenders, and sellers — it's the fastest way to surface environmental risks before they become expensive surprises.