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 of 500 feet surface casing in the northwest one quarter of the county; 250 feet in the southwest one quarter of the county; 200 feet in the eastern one half of the county. All other wells shall use Alternate II rules, Appendix B, Area 3 for R.17E, 18E and 19E, and Area 2 for R.20E and 21E, Eastern Surface Casing order. In all cases, set surface casing through all unconsolidated material plus 20 or more feet into the underlying formation.