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| Rule: 36.21.666 | Prev Up Next | |
| Rule Title: ARTIFICIAL GRAVEL PACKED WELLS - GENERAL | ||
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| Department: | NATURAL RESOURCES AND CONSERVATION, DEPARTMENT OF | |
| Chapter: | BOARD OF WATER WELL CONTRACTORS | |
| Subchapter: | Construction Standards | |
| Latest version of the adopted rule presented in Administrative Rules of Montana (ARM): | ||
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36.21.666 ARTIFICIAL GRAVEL PACKED WELLS - GENERAL (1) In gravel packed wells, the gravel mixture shall be placed around the screen so that bridging or size separation will not occur. The gravel pack shall be clean, chemically stable, and composed of reasonably uniform grains. All gravel and water used shall be disinfected in at least 50 ppm chlorine. (2) Gravel packing shall be placed from the bottom of the screen upwards to 2 to 3 feet above the screen. History: 37-43-202(3), MCA; IMP, 37-43-202(3), MCA; NEW, 1986 MAR p. 1699, Eff. 10/17/86. |
| MAR Notices | Effective From | Effective To | History Notes |
|---|---|---|---|
| 10/17/1986 | Current | History: 37-43-202(3), MCA; IMP, 37-43-202(3), MCA; NEW, 1986 MAR p. 1699, Eff. 10/17/86. |
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