Missouri Contamination Data

State Contamination Profile

Low Risk Level33,623 documented sites
Missouri ranks 28th of 50 states by severity-weighted density — a screening measure of how much documented history sits in the federal record per square mile. That describes the record, not any single yard: the map shows where each documented site actually sits.

Total Sites

33,623

9 federal databases

Severity Density

0.79

Severity-weighted sites per sq mi

High-Severity Sites

4,551

Superfund NPL, PFAS detections + similar top-tier records

Data Sources

EPA, USGS

9 databases checked

High-severity counts the top severity tier of the record — the sites most worth checking distances against.

Source Breakdown

Top Counties in Missouri

St. Louis County carries Missouri's densest documented record — 37.96 severity-weighted sites per square mile across 1,929 records, most commonly Underground Storage Tanks, including 29 high-severity sites. Density describes the county's record, not any single parcel.

Agricultural Pesticide Use in Missouri

In the 2019 federal survey estimates, Missouri's most-applied agricultural pesticides statewide were Glyphosate, Atrazine and Metolachlor & Metolachlor-S. These estimates describe agricultural land use across the state — context for what's in use around the region, not a reading on any garden's soil.

Pesticide data: USGS NAWQA Pesticide National Synthesis Project (EPest county-level use estimates). Latest available county estimates: 2019.

County-Level Detail in Missouri

The federal record isn't uniform across a state. Here's what's documented around Missouri's counties with the densest records — each read from that county's own sites, not the state average. Proximity is information, not a diagnosis; a soil test settles any near neighbor.

Is It Safe to Grow Food in St. Louis?

Federal record: High

We checked the federal record around St. Louis1,929 documented sites across 7 of the 9 source types we track, 29 of them high-severity.

The most significant on record: 27 Superfund sites. Sites tracked in EPA's Superfund program — from assessment-stage CERCLIS entries to confirmed National Priorities List cleanup sites.

St. Louis carries one of the heavier federal records we track — 1,929 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 center

  • Gateway Outdoor AdvertisingUnderground Storage Tanks · ~0.1 km from the county center
  • Laclede Gas Company - Central DistrUnderground Storage Tanks · ~0.1 km from the county center
  • United Bumper Inc-United Bumper IncToxic Release Inventory · ~0.1 km from the county center

These are the closest documented sites to St. Louis'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.

Is It Safe to Grow Food in Jasper County?

Federal record: High

We checked the federal record around Jasper County2,541 documented sites across 8 of the 9 source types we track, 1,822 of them high-severity.

The most significant on record: 6 Superfund sites. Sites tracked in EPA's Superfund program — from assessment-stage CERCLIS entries to confirmed National Priorities List cleanup sites.

Jasper County carries one of the heavier federal records we track — 2,541 documented sites, most of them mining. 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 Jasper County center

  • Leggett & Platt IncBrownfields · ~0.7 km from the county center
  • Flex-O-LatorsToxic Release Inventory · ~0.7 km from the county center
  • Shepherd MineMining · ~0.8 km from the county center

These are the closest documented sites to Jasper 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.

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 9 source types 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.

Is It Safe to Grow Food in Jackson County?

Federal record: High

We checked the federal record around Jackson County2,890 documented sites across 6 of the 9 source types we track, 42 of them high-severity.

The most significant on record: 30 Superfund sites. Sites tracked in EPA's Superfund program — from assessment-stage CERCLIS entries to confirmed National Priorities List cleanup sites.

Jackson County carries one of the heavier federal records we track — 2,890 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 Jackson County center

  • Blue Springs Lake MarinaUnderground Storage Tanks · ~0.6 km from the county center
  • Minit Mart #577 Lees SummitUnderground Storage Tanks · ~1.0 km from the county center
  • Quiktrip #208Underground Storage Tanks · ~1.4 km from the county center

These are the closest documented sites to Jackson 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 Missouri

Free Report

Read your Missouri parcel

See exact proximity distances to contamination sources for your specific parcel — plus soil, sun, drainage, and 1,112 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