W. Va. Code R. § 64-46-11

Current through Register Vol. XLI, No. 50, December 13, 2024

Section 64-46-11 - Dewatering and Dug Wells Construction

11.1. Dewatering wells generally withdraw shallow ground water for construction purposes; grouting of the annular space may be minimized. Each dewatering well is unique. Submit plans to the Commissioner for approval. Dewatering wells shall be immediately sealed using methods described in section 12 of this rule after dewatering has ceased.

11.2. Every hand dug well shall have a continuous watertight lining of steel casing, concrete pipe, or other approved casing material, extending from above ground surface to a depth of at least ten (10) feet below the ground surface. When more than one formation bearing suitable water exists, the lower formation should be used. The lining in the producing zone shall readily admit water and shall be structurally sound to withstand external pressures. Each hand dug well is unique. Develop and submit plans to the Commissioner for approval.

11.2.a. The open space between the excavation and the installed lining shall be sealed with grout. If the first ten (10) feet of the casing is jointed, such as concrete, and would allow surface water to seep into cracks of casing, the grout shall continue from the ten (10) foot seal to ground level.

W. Va. Code R. § 64-46-11