Minnesota Administrative Rules

4725.2850 GRAVEL PACKS.

Gravel packs, filter sand, or stabilizer materials must be comprised of mineral material or inert, nontoxic artificial materials, contain less than five percent calcareous material, and must be graded, cleaned, and washed. Gravel packs, filter sand, or stabilizer materials must not extend:

A.

more than ten feet above the static water level;

B.

more than ten feet above the top or below the bottom of the screen when a screen riser, leader, or screen sump is not installed;

C.

above a screen riser or leader, or below a screen sump;

D.

through a confining layer in violation of part 4725.2020, subpart 1a; or

E.

through more than ten feet of open hole.

Statutory Authority:

MS s 103I.101; 103I.111; 103I.205; 103I.221; 103I.301; 103I.401; 103I.451; 103I.501; 103I.525; 103I.531; 103I.535; 103I.541; 103I.621; 144.05; 144.12; 144.383; 157.04; 157.08; 157.09; 157.13

History:

17 SR 2773; 33 SR 211

Published Electronically:

September 2, 2008