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
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.
| County | Sites | Density | Dominant Source |
|---|---|---|---|
| St. Louis | 1,929 | 37.96 | Underground Storage Tanks |
| Jasper | 2,541 | 10.15 | Mining |
| St. Louis | 3,630 | 9.09 | Underground Storage Tanks |
| Jackson | 2,890 | 6.42 | Underground Storage Tanks |
| Newton | 1,171 | 4.72 | Mining |
| St. Charles | 1,193 | 3.15 | Underground Storage Tanks |
| Greene | 1,322 | 2.70 | Underground Storage Tanks |
| Clay | 789 | 2.70 | Underground Storage Tanks |
| Jefferson | 882 | 2.31 | Underground Storage Tanks |
| St. Francois | 480 | 2.18 | Mining |
St. Louis
Sites
2K
Density
38.0
Source
Underground Storage TanksJasper
Sites
3K
Density
10.1
Source
MiningSt. Louis
Sites
4K
Density
9.1
Source
Underground Storage TanksJackson
Sites
3K
Density
6.4
Source
Underground Storage TanksNewton
Sites
1K
Density
4.7
Source
MiningSt. Charles
Sites
1K
Density
3.2
Source
Underground Storage TanksGreene
Sites
1K
Density
2.7
Source
Underground Storage TanksClay
Sites
789
Density
2.7
Source
Underground Storage TanksJefferson
Sites
882
Density
2.3
Source
Underground Storage TanksSt. Francois
Sites
480
Density
2.2
Source
MiningAgricultural 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: HighWe checked the federal record around St. Louis — 1,929 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 Advertising — Underground Storage Tanks · ~0.1 km from the county center
- Laclede Gas Company - Central Distr — Underground Storage Tanks · ~0.1 km from the county center
- United Bumper Inc-United Bumper Inc — Toxic 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: HighWe checked the federal record around Jasper County — 2,541 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 Inc — Brownfields · ~0.7 km from the county center
- Flex-O-Lators — Toxic Release Inventory · ~0.7 km from the county center
- Shepherd Mine — Mining · ~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: HighWe checked the federal record around St. Louis County — 3,630 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 Center — Underground Storage Tanks · ~0.4 km from the county center
- Missouri Baptist Medical Center-North Ballas — Brownfields · ~0.4 km from the county center
- Ballas Sign Shop — Underground 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: HighWe checked the federal record around Jackson County — 2,890 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 Marina — Underground Storage Tanks · ~0.6 km from the county center
- Minit Mart #577 Lees Summit — Underground Storage Tanks · ~1.0 km from the county center
- Quiktrip #208 — Underground 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
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:
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