Total Sites
21,012
9 federal databases
Severity Density
0.62
Severity-weighted sites per sq mi
High-Severity Sites
444
Superfund NPL, PFAS detections + similar top-tier records
Data Sources
EPA, USGS
9 databases checked
Source Breakdown
Top Counties in Arkansas
Pulaski County carries Arkansas's densest documented record — 3.66 severity-weighted sites per square mile across 2,066 records, most commonly Underground Storage Tanks, including 15 high-severity sites. Density describes the county's record, not any single parcel.
| County | Sites | Density | Dominant Source |
|---|---|---|---|
| Pulaski | 2,066 | 3.66 | Underground Storage Tanks |
| Sebastian | 788 | 1.94 | Underground Storage Tanks |
| Benton | 728 | 1.24 | Underground Storage Tanks |
| Crittenden | 455 | 1.16 | Underground Storage Tanks |
| Marion | 288 | 1.10 | Mining |
| Jefferson | 619 | 1.06 | Underground Storage Tanks |
| Washington | 772 | 1.06 | Underground Storage Tanks |
| Crawford | 374 | 1.01 | Underground Storage Tanks |
| Lincoln | 289 | 0.95 | Nitrate |
| Craighead | 477 | 0.92 | Underground Storage Tanks |
Pulaski
Sites
2K
Density
3.7
Source
Underground Storage TanksSebastian
Sites
788
Density
1.9
Source
Underground Storage TanksBenton
Sites
728
Density
1.2
Source
Underground Storage TanksCrittenden
Sites
455
Density
1.2
Source
Underground Storage TanksMarion
Sites
288
Density
1.1
Source
MiningJefferson
Sites
619
Density
1.1
Source
Underground Storage TanksWashington
Sites
772
Density
1.1
Source
Underground Storage TanksCrawford
Sites
374
Density
1.0
Source
Underground Storage TanksLincoln
Sites
289
Density
0.9
Source
NitrateCraighead
Sites
477
Density
0.9
Source
Underground Storage TanksAgricultural Pesticide Use in Arkansas
In the 2019 federal survey estimates, Arkansas's most-applied agricultural pesticides statewide were Glyphosate, Metolachlor & Metolachlor-S and 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.
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