St. Louis County Contamination Data

Missouri · County Contamination Profile

Is It Safe to Grow Food in St. Louis County?

Federal record: High

We checked the federal record around St. Louis County3,630 documented sites across 6 of the 8 site registers we track, 37 of them high-severity.

The most significant on record: 35 Superfund sites. Sites tracked in EPA's Superfund program — from assessment-stage CERCLIS entries to confirmed National Priorities List cleanup sites.

St. Louis County carries one of the heavier federal records we track — 3,630 documented sites, most of them underground storage tanks. That's a record of the area's history, not a verdict on any one yard: proximity to a documented site is information, not a diagnosis. Before food beds go in, a professional soil test tells you exactly what you're working with — and raised beds with clean imported soil grow well almost anywhere in the meantime.

Documented sites nearest the St. Louis County center

  • Mo Baptist Medical CenterUnderground Storage Tanks · ~0.4 km from the county center
  • Missouri Baptist Medical Center-North BallasBrownfields · ~0.4 km from the county center
  • Ballas Sign ShopUnderground Storage Tanks · ~0.5 km from the county center

These are the closest documented sites to St. Louis County's geographic center — a screening reference, not a reading on any specific address. Check your own Missouri parcel to see what's actually near you.

Check an Address in St. Louis County

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Read your St. Louis County parcel

See exact proximity distances to contamination sources for your specific parcel — plus soil, sun, drainage, and 1,086 plant recommendations.

Three things about your exact spot that zone averages miss:

Your soil pHYour frost-free daysYour sun & shade

We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.

25+ data sources analyzed in seconds

EPA FRS CERCLISArcGIS Online UST FinderEPA FRS TRIEPA FRS ACRESEPA UCMR 5USGS Water Quality PortalEPA FRS NPDESUSGS MRDSUSGS NAWQA EPest