Total Sites
47,113
9 federal databases
Severity Density
1.48
Severity-weighted sites per sq mi
High-Severity Sites
359
Superfund NPL, PFAS detections + similar top-tier records
Data Sources
EPA, USGS
9 databases checked
Source Breakdown
Top Counties in Louisiana
Orleans County carries Louisiana's densest documented record — 16.42 severity-weighted sites per square mile across 2,448 records, most commonly Brownfields, including 18 high-severity sites. Density describes the county's record, not any single parcel.
| County | Sites | Density | Dominant Source |
|---|---|---|---|
| Orleans | 2,448 | 16.42 | Brownfields |
| Jefferson | 3,229 | 12.15 | Brownfields |
| Lafayette | 2,508 | 11.22 | Brownfields |
| East Baton Rouge | 3,490 | 9.51 | Brownfields |
| Ascension | 882 | 3.82 | Brownfields |
| West Baton Rouge | 481 | 3.62 | Brownfields |
| Caddo | 2,469 | 3.54 | Underground Storage Tanks |
| Ouachita | 1,396 | 2.93 | Underground Storage Tanks |
| Calcasieu | 2,253 | 2.81 | Brownfields |
| St. John the Baptist | 407 | 2.58 | Brownfields |
Orleans
Sites
2K
Density
16.4
Source
BrownfieldsJefferson
Sites
3K
Density
12.1
Source
BrownfieldsLafayette
Sites
3K
Density
11.2
Source
BrownfieldsEast Baton Rouge
Sites
3K
Density
9.5
Source
BrownfieldsAscension
Sites
882
Density
3.8
Source
BrownfieldsWest Baton Rouge
Sites
481
Density
3.6
Source
BrownfieldsCaddo
Sites
2K
Density
3.5
Source
Underground Storage TanksOuachita
Sites
1K
Density
2.9
Source
Underground Storage TanksCalcasieu
Sites
2K
Density
2.8
Source
BrownfieldsSt. John the Baptist
Sites
407
Density
2.6
Source
BrownfieldsAgricultural Pesticide Use in Louisiana
In the 2019 federal survey estimates, Louisiana'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.
County-Level Detail in Louisiana
The federal record isn't uniform across a state. Here's what's documented around Louisiana'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 Orleans Parish?
Federal record: HighWe checked the federal record around Orleans Parish — 2,448 documented sites across 6 of the 9 source types we track, 18 of them high-severity.
The most significant on record: 16 Superfund sites. Sites tracked in EPA's Superfund program — from assessment-stage CERCLIS entries to confirmed National Priorities List cleanup sites.
Orleans Parish carries one of the heavier federal records we track — 2,448 documented sites, most of them brownfields. 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 Orleans Parish center
- Sfj Management Inc Six Flags New Orleans — Brownfields · ~1.0 km from the county center
- Southern Waste Control Inc — Brownfields · ~1.3 km from the county center
- Lake Forest Tower — Brownfields · ~1.3 km from the county center
These are the closest documented sites to Orleans Parish's geographic center — a screening reference, not a reading on any specific address. Check your own Louisiana parcel to see what's actually near you.
Is It Safe to Grow Food in Jefferson Parish?
Federal record: HighWe checked the federal record around Jefferson Parish — 3,229 documented sites across 6 of the 9 source types we track, 9 of them high-severity.
The most significant on record: 5 Superfund sites. Sites tracked in EPA's Superfund program — from assessment-stage CERCLIS entries to confirmed National Priorities List cleanup sites.
Jefferson Parish carries one of the heavier federal records we track — 3,229 documented sites, most of them brownfields. 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 Jefferson Parish center
- Bellsouth Telecommunications - Nworlaar - J2540 — Underground Storage Tanks · ~5.4 km from the county center
- Sewerage & Water Board Of New Orleans — Underground Storage Tanks · ~6.8 km from the county center
- U-Haul International Inc — Underground Storage Tanks · ~8.1 km from the county center
These are the closest documented sites to Jefferson Parish's geographic center — a screening reference, not a reading on any specific address. Check your own Louisiana parcel to see what's actually near you.
Is It Safe to Grow Food in Lafayette Parish?
Federal record: HighWe checked the federal record around Lafayette Parish — 2,508 documented sites across 6 of the 9 source types we track, 10 of them high-severity.
The most significant on record: 1 Superfund site. Sites tracked in EPA's Superfund program — from assessment-stage CERCLIS entries to confirmed National Priorities List cleanup sites.
Lafayette Parish carries one of the heavier federal records we track — 2,508 documented sites, most of them brownfields. 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 Lafayette Parish center
- P&H Electric Inc — Underground Storage Tanks · ~0.0 km from the county center
- Darrell Menard — Underground Storage Tanks · ~0.0 km from the county center
- C J Dore — Underground Storage Tanks · ~0.0 km from the county center
These are the closest documented sites to Lafayette Parish's geographic center — a screening reference, not a reading on any specific address. Check your own Louisiana parcel to see what's actually near you.
Is It Safe to Grow Food in East Baton Rouge Parish?
Federal record: HighWe checked the federal record around East Baton Rouge Parish — 3,490 documented sites across 6 of the 9 source types we track, 22 of them high-severity.
The most significant on record: 19 Superfund sites. Sites tracked in EPA's Superfund program — from assessment-stage CERCLIS entries to confirmed National Priorities List cleanup sites.
East Baton Rouge Parish carries one of the heavier federal records we track — 3,490 documented sites, most of them brownfields. 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 East Baton Rouge Parish center
- Central Alternator & Starter Svc — Brownfields · ~0.6 km from the county center
- Circle K #6807 — Underground Storage Tanks · ~1.4 km from the county center
- Silvio's Restaurant & Lounge — Underground Storage Tanks · ~1.5 km from the county center
These are the closest documented sites to East Baton Rouge Parish's geographic center — a screening reference, not a reading on any specific address. Check your own Louisiana parcel to see what's actually near you.
Check an Address in Louisiana
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