Total Sites
93,167
9 federal databases
Severity Density
0.50
Severity-weighted sites per sq mi
High-Severity Sites
1,658
Superfund NPL, PFAS detections + similar top-tier records
Data Sources
EPA, USGS
9 databases checked
Source Breakdown
Top Counties in Texas
Harris County carries Texas's densest documented record — 10.25 severity-weighted sites per square mile across 12,699 records, most commonly Underground Storage Tanks, including 344 high-severity sites. Density describes the county's record, not any single parcel.
| County | Sites | Density | Dominant Source |
|---|---|---|---|
| Harris | 12,699 | 10.25 | Underground Storage Tanks |
| Dallas | 6,622 | 9.99 | Underground Storage Tanks |
| Tarrant | 4,999 | 7.84 | Underground Storage Tanks |
| Bexar | 4,346 | 5.14 | Underground Storage Tanks |
| Gregg | 945 | 4.54 | Underground Storage Tanks |
| Galveston | 995 | 3.64 | Underground Storage Tanks |
| Travis | 2,218 | 3.12 | Underground Storage Tanks |
| Jefferson | 1,950 | 2.96 | Underground Storage Tanks |
| El Paso | 2,004 | 2.68 | Underground Storage Tanks |
| Orange | 616 | 2.65 | Underground Storage Tanks |
Harris
Sites
13K
Density
10.3
Source
Underground Storage TanksDallas
Sites
7K
Density
10.0
Source
Underground Storage TanksTarrant
Sites
5K
Density
7.8
Source
Underground Storage TanksBexar
Sites
4K
Density
5.1
Source
Underground Storage TanksGregg
Sites
945
Density
4.5
Source
Underground Storage TanksGalveston
Sites
995
Density
3.6
Source
Underground Storage TanksTravis
Sites
2K
Density
3.1
Source
Underground Storage TanksJefferson
Sites
2K
Density
3.0
Source
Underground Storage TanksEl Paso
Sites
2K
Density
2.7
Source
Underground Storage TanksOrange
Sites
616
Density
2.6
Source
Underground Storage TanksAgricultural Pesticide Use in Texas
In the 2019 federal survey estimates, Texas'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.
County-Level Detail in Texas
The federal record isn't uniform across a state. Here's what's documented around Texas'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 Harris County?
Federal record: HighWe checked the federal record around Harris County — 12,699 documented sites across 8 of the 9 source types we track, 344 of them high-severity.
The most significant on record: 89 Superfund sites. Sites tracked in EPA's Superfund program — from assessment-stage CERCLIS entries to confirmed National Priorities List cleanup sites.
Harris County carries one of the heavier federal records we track — 12,699 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 Harris County center
- 7 11 Food Stores E Houston — Underground Storage Tanks · ~0.0 km from the county center
- Galena Park Isd — Underground Storage Tanks · ~0.0 km from the county center
- 7 11 Food Stores Kirkwood & Stroud — Underground Storage Tanks · ~0.0 km from the county center
These are the closest documented sites to Harris County's geographic center — a screening reference, not a reading on any specific address. Check your own Texas parcel to see what's actually near you.
Is It Safe to Grow Food in Dallas County?
Federal record: HighWe checked the federal record around Dallas County — 6,622 documented sites across 7 of the 9 source types we track, 75 of them high-severity.
The most significant on record: 56 Superfund sites. Sites tracked in EPA's Superfund program — from assessment-stage CERCLIS entries to confirmed National Priorities List cleanup sites.
Dallas County carries one of the heavier federal records we track — 6,622 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 Dallas County center
- 421c O Hamilton Bldg T44026 — Underground Storage Tanks · ~0.1 km from the county center
- General Rent A Car — Underground Storage Tanks · ~0.1 km from the county center
- D E Harrell & Wallace Byrd — Underground Storage Tanks · ~0.1 km from the county center
These are the closest documented sites to Dallas County's geographic center — a screening reference, not a reading on any specific address. Check your own Texas parcel to see what's actually near you.
Is It Safe to Grow Food in Tarrant County?
Federal record: HighWe checked the federal record around Tarrant County — 4,999 documented sites across 6 of the 9 source types we track, 52 of them high-severity.
The most significant on record: 29 Superfund sites. Sites tracked in EPA's Superfund program — from assessment-stage CERCLIS entries to confirmed National Priorities List cleanup sites.
Tarrant County carries one of the heavier federal records we track — 4,999 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 Tarrant County center
- Wesley Kennemer Trucking — Underground Storage Tanks · ~0.1 km from the county center
- American Airlines — Underground Storage Tanks · ~0.1 km from the county center
- Metro Airlines — Underground Storage Tanks · ~0.1 km from the county center
These are the closest documented sites to Tarrant County's geographic center — a screening reference, not a reading on any specific address. Check your own Texas parcel to see what's actually near you.
Check an Address in Texas
Read your Texas 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:
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