Minn. R. agency 144, ch. 4725, WELL AND BORING GENERAL CONSTRUCTION AND USE REQUIREMENTS, pt. 4725.2850

Current through Register Vol. 49, No. 24, December 9, 2024

Part 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.

Minn. R. agency 144, ch. 4725, WELL AND BORING GENERAL CONSTRUCTION AND USE REQUIREMENTS, pt. 4725.2850

17 SR 2773; 33 SR 211

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