Iowa Admin. Code r. 567-39.7

Current through Register Vol. 47, No. 11, December 11, 2024

Rule 567-39.7 - Abandoned well plugging materials

(1)Sealing materials. Approved sealing materials are bentonite products (graded bentonite, bentonite pellets and bentonite grout), neat cement, sand cement grout and concrete.

(2)Filling materials. Approved filling materials include agricultural lime, soil, sand, pea gravel, gravel and crushed stone. The filling materials shall be free of debris, foreign matter and any toxic or agricultural chemical residue. Filling materials are not required for well plugging.