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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| LaCroix Sewer & Site Solutions LLC | Atlanta, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 40102 |
| Larry Shaw Plumbing Inc. | Opelousas, LA | — | Installer (Basic)Installer (Combination) | 166 |
| Lees Bordelon Septic | Downsville, LA | — | Installer (Basic)Installer (Combination) | 31892 |
| Lewis Septic Solutions | Denham Springs, LA | — | Installer (Basic)Installer (Combination) | 32255 |
| Lincoln Plumbing | Dubach, LA | — | Installer (Basic)Installer (Combination) | 419 |
| Lincoln Septic Service LLC | Dubach, LA | — | Installer (Basic)Installer (Combination) | 32069 |
| Little Rooster Septic LLC | Gonzales, LA | — | Installer (Basic)Installer (Combination) | 32432 |
| Lopez LLC | Thibodaux, LA | — | Installer (Basic)Installer (Combination) | 40085 |
| Louisiana Land Pros LLC | St. Francisville, LA | — | Installer (Basic) | 40098 |
| Louisiana Sewer Solutions | Chruch Point, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 32138 |
| Louisiana Wastewater Systems | Broussard, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 30934 |
| Lrs, Llc | Pierre Part, LA | — | Installer (Basic)Installer (Combination) | 32194 |
| Luke Deshotels Construction | Mamou, LA | — | Installer (Basic)Installer (Combination) | 212 |
| Luke Deshotels Construction | Mamou, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 337 |
| Luke Deshotels Construction | Mamou, LA | — | Installer (Basic)Installer (Combination) | 896 |
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