Water testing in Louisiana
Lowest price: $10, LSU AgCenter, Department of Agricultural Chemistry.
Water tests in Louisiana
Louisiana Water and Soil Testing, Agricultural Chemistry Lab
$10
- Nitrogen TKN
- Total phosphorus
- Orthophosphate
- Dissolved phosphorus
- Copper
- +10 more
Contact the Agricultural Chemistry lab for the sample submittal form and fee schedule, then submit your water sample with payment.
Who can use it: Open to the general public for a fee
- LSU AgCenter Agricultural Chemistry, Room 102, Agricultural Chemistry Building, 110 LSU Union Square, Baton Rouge · 225-342-5812
Checked October 1, 2026. Official page · Report a change
Louisiana Private Well Water Testing
$40
- Bacteria
- E. coli
Order online through the LDH private well portal, or call 888-293-7020.
Who can use it: Louisiana private well owners; kits are limited in number
- Louisiana Department of Health, 628 N. 4th Street, Baton Rouge · 888-293-7020
Checked October 1, 2026. Official page · Report a change
Sewerage and Water Board of New Orleans Lead Testing Kit Request
Call for price
- Lead
Fill out the online Request a Lead Testing Kit form on swbno.org with your street address, zip code, and contact information.
Who can use it: SWBNO water customers in New Orleans
- Sewerage and Water Board of New Orleans, 625 Saint Joseph Street, New Orleans · (504) 52-WATER (529-2837)
Checked October 2, 2026. Official page · Report a change
Certified labs: Louisiana Department of Environmental Quality (LDEQ), Louisiana Environmental Laboratory Accreditation Program (LELAP)
Every county in Louisiana
1 of 64 counties have a local water test we verified. Everywhere else, use the statewide and mail-in options on this page.
Show all 64 counties
| County | Local water test |
|---|---|
| Acadia Parish | None verified yet |
| Allen Parish | None verified yet |
| Ascension Parish | None verified yet |
| Assumption Parish | None verified yet |
| Avoyelles Parish | None verified yet |
| Beauregard Parish | None verified yet |
| Bienville Parish | None verified yet |
| Bossier Parish | None verified yet |
| Caddo Parish | None verified yet |
| Calcasieu Parish | None verified yet |
| Caldwell Parish | None verified yet |
| Cameron Parish | None verified yet |
| Catahoula Parish | None verified yet |
| Claiborne Parish | None verified yet |
| Concordia Parish | None verified yet |
| De Soto Parish | None verified yet |
| East Baton Rouge Parish | None verified yet |
| East Carroll Parish | None verified yet |
| East Feliciana Parish | None verified yet |
| Evangeline Parish | None verified yet |
| Franklin Parish | None verified yet |
| Grant Parish | None verified yet |
| Iberia Parish | None verified yet |
| Iberville Parish | None verified yet |
| Jackson Parish | None verified yet |
| Jefferson Davis Parish | None verified yet |
| Jefferson Parish | None verified yet |
| Lafayette Parish | None verified yet |
| Lafourche Parish | None verified yet |
| LaSalle Parish | None verified yet |
| Lincoln Parish | None verified yet |
| Livingston Parish | None verified yet |
| Madison Parish | None verified yet |
| Morehouse Parish | None verified yet |
| Natchitoches Parish | None verified yet |
| Orleans Parish | Sewerage and Water Board of New Orleans Lead Testing Kit Request |
| Ouachita Parish | None verified yet |
| Plaquemines Parish | None verified yet |
| Pointe Coupee Parish | None verified yet |
| Rapides Parish | None verified yet |
| Red River Parish | None verified yet |
| Richland Parish | None verified yet |
| Sabine Parish | None verified yet |
| St. Bernard Parish | None verified yet |
| St. Charles Parish | None verified yet |
| St. Helena Parish | None verified yet |
| St. James Parish | None verified yet |
| St. John the Baptist Parish | None verified yet |
| St. Landry Parish | None verified yet |
| St. Martin Parish | None verified yet |
| St. Mary Parish | None verified yet |
| St. Tammany Parish | None verified yet |
| Tangipahoa Parish | None verified yet |
| Tensas Parish | None verified yet |
| Terrebonne Parish | None verified yet |
| Union Parish | None verified yet |
| Vermilion Parish | None verified yet |
| Vernon Parish | None verified yet |
| Washington Parish | None verified yet |
| Webster Parish | None verified yet |
| West Baton Rouge Parish | None verified yet |
| West Carroll Parish | None verified yet |
| West Feliciana Parish | None verified yet |
| Winn Parish | None verified yet |
More help in Louisiana
- Lead poisoning prevention: Louisiana Childhood Lead Poisoning Prevention Program (LCLPPP)
- Drinking water program: Safe Drinking Water Program - Louisiana Department of Health
- Drinking water program: Lead Service Line Inventory (LSLI) - Louisiana Department of Health
- PFAS: Louisiana Department of Health, Per- and Polyfluoroalkyl Substances (PFAS)
- Radon: Louisiana radon test kits (sister site)
Links checked October 2, 2026.