Louisiana Contamination Data

State Contamination Profile

Moderate Risk Level47,113 documented sites
Louisiana ranks 13th of 50 states by severity-weighted density — a screening measure of how much documented history sits in the federal record per square mile. That describes the record, not any single yard: the map shows where each documented site actually sits.

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

High-severity counts the top severity tier of the record — the sites most worth checking distances against.

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.

Agricultural 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: High

We checked the federal record around Orleans Parish2,448 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 OrleansBrownfields · ~1.0 km from the county center
  • Southern Waste Control IncBrownfields · ~1.3 km from the county center
  • Lake Forest TowerBrownfields · ~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: High

We checked the federal record around Jefferson Parish3,229 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 - J2540Underground Storage Tanks · ~5.4 km from the county center
  • Sewerage & Water Board Of New OrleansUnderground Storage Tanks · ~6.8 km from the county center
  • U-Haul International IncUnderground 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: High

We checked the federal record around Lafayette Parish2,508 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 IncUnderground Storage Tanks · ~0.0 km from the county center
  • Darrell MenardUnderground Storage Tanks · ~0.0 km from the county center
  • C J DoreUnderground 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: High

We checked the federal record around East Baton Rouge Parish3,490 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 SvcBrownfields · ~0.6 km from the county center
  • Circle K #6807Underground Storage Tanks · ~1.4 km from the county center
  • Silvio's Restaurant & LoungeUnderground 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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Read your Louisiana parcel

See exact proximity distances to contamination sources for your specific parcel — plus soil, sun, drainage, and 1,112 plant recommendations.

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Your soil pHYour frost-free daysYour sun & shade

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

EPA FRS CERCLISArcGIS Online UST FinderEPA FRS TRIEPA FRS ACRESEPA UCMR 5USGS Water Quality PortalEPA FRS NPDESUSGS MRDSUSGS NAWQA EPest