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
Wells deeper than 1500 feet and using Alternate I completion set a minimum surface casing of 150 feet in R.17E and 18E; 175 feet in T.26S-R.20 and 21E; and 100 feet in all other areas. All other wells shall use Alternate II rules, Appendix B, Area 2, Eastern Surface Casing order. In all cases, set surface casing through all unconsolidated material plus 20 or more feet into the underlying formation.