Total Sites
19,441
9 federal databases
Severity Density
0.27
Severity-weighted sites per sq mi
High-Severity Sites
1,247
Superfund NPL, PFAS detections + similar top-tier records
Data Sources
EPA, USGS
9 databases checked
Source Breakdown
Top Counties in New Mexico
Bernalillo County carries New Mexico's densest documented record — 4.93 severity-weighted sites per square mile across 3,918 records, most commonly Underground Storage Tanks, including 50 high-severity sites. Density describes the county's record, not any single parcel.
| County | Sites | Density | Dominant Source |
|---|---|---|---|
| Bernalillo | 3,918 | 4.93 | Underground Storage Tanks |
| Los Alamos | 165 | 1.97 | Underground Storage Tanks |
| Santa Fe | 943 | 0.77 | Nitrate |
| Doña Ana | 1,246 | 0.55 | Nitrate |
| McKinley | 1,345 | 0.45 | Nitrate |
| Valencia | 307 | 0.44 | Nitrate |
| Curry | 427 | 0.44 | Underground Storage Tanks |
| Grant | 747 | 0.40 | Mining |
| San Juan | 1,253 | 0.37 | Nitrate |
| Eddy | 823 | 0.32 | Nitrate |
Bernalillo
Sites
4K
Density
4.9
Source
Underground Storage TanksLos Alamos
Sites
165
Density
2.0
Source
Underground Storage TanksSanta Fe
Sites
943
Density
0.8
Source
NitrateDoña Ana
Sites
1K
Density
0.6
Source
NitrateMcKinley
Sites
1K
Density
0.5
Source
NitrateValencia
Sites
307
Density
0.4
Source
NitrateCurry
Sites
427
Density
0.4
Source
Underground Storage TanksGrant
Sites
747
Density
0.4
Source
MiningSan Juan
Sites
1K
Density
0.4
Source
NitrateEddy
Sites
823
Density
0.3
Source
NitrateAgricultural Pesticide Use in New Mexico
In the 2019 federal survey estimates, New Mexico's most-applied agricultural pesticides statewide were Glyphosate, 2,4-D and Dicamba. 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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