Region
Louisiana
31
Arkansas
3
Sparta Aquifer (Ark. and La.)
2
Allen Parish
1
Bossier Parish
1
Caddo Parish
1
Catahoula Parish
1
Concordia Parish
1
Iberia Parish
1
Jefferson Davis Parish
1
Jefferson Parish
1
Lafayette Parish
1
Lake Charles Region
1
Livingston Parish
1
Memphis Aquifer
1
Mermentau River Watershed
1
Mississippi River
1
Rapides Parish
1
Sabine Parish
1
Saint Charles Parish
1
Saint Helena Parish
1
Saint Helena Parish (La.)
1
Saint James Parish
1
Saint James Parish (La.)
1
Saint John the Baptist Parish
1
Saint Tammany Parish
1
Vermilion Parish
1
Vernon Parish
1
Washington Parish
1