Sec.25-128-48. Gravel packed wells, construction

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In a gravel packed well in which the top of the gravel does not extend inside the outer casing, a bentonite plug of at least five (5) feet in thickness shall be placed in the annular space directly on top of the gravel. The remaining space shall be filled with grout except that the upper ten (10) feet below the frost level shall be filled with cement grout. Centering guides shall be attached to pipe extensions about the well screen and to blank pipes separating different screened sections. The gravel filled pipes shall be properly capped.

(Effective May 21, 1993; Amended July 8, 2022)

                    
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