Minimum Surface Casing Requirements
Minimum surface casing requirements for protecting fresh and usable water and to meet alternate #1 on Intent to Drill cards, Form C-1
S=Section, T=Township, R=Range
T.21S set a minimum of 150 feet. Set a minimum of 200 feet in all other areas. In all areas, set through the Kiowa shale plus 20 feet into the underlying formation. In all cases, set through all unconsolidated material plus 20 feet into the underlying formation.