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Rule Title: TOP TERMINAL HEIGHT
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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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36.21.647    TOP TERMINAL HEIGHT

(1) The casing head or pitless unit of any water well shall extend not less than 18 inches above the finished ground surface or pump house floor, and not less than 18 inches above the local surface runoff level. No casing shall be cut off below land surface except during permanent abandonment of a well. The ground surface immediately surrounding the top of the well casing or pitless unit shall be graded so as to drain surface water away from the well. The casing of any water well shall extend not less than 18 inches above the established 100 year floodplain elevation or be capped with a watertight seal and vented above flood level.

History: 37-43-202(3), MCA; IMP, 37-43-202(3), MCA; NEW, 1986 MAR p. 1699, Eff. 10/17/86; AMD, 1997 MAR p. 65, Eff. 1/17/97.


 

 
MAR Notices Effective From Effective To History Notes
1/17/1997 Current History: 37-43-202(3), MCA; IMP, 37-43-202(3), MCA; NEW, 1986 MAR p. 1699, Eff. 10/17/86; AMD, 1997 MAR p. 65, Eff. 1/17/97.
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