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
R.5E, 6E and 7E set a minimum of 200 feet. R.8E and 9E set a minimum of 150 feet. In all cases, set through all unconsolidated material plus 20 feet into the underlying formation.