B1387-NUEX91-0312-3of4-D.pdf

This is a technical detail sheet for a pump pad design associated with a gravel packed well installation. The document provides engineering specifications and construction details for water well infrastructure, specifically showing the pump setting configuration and associated piping systems.

The detail sheet includes multiple cross-sectional and plan views illustrating the pump pad construction. Key specifications include a 26-foot borehole depth, 16-inch casing, 50-foot surface casing, and a concrete slab designed to bond to the concrete seal. The pump setting incorporates vacuum relief valve, 2-inch air/vacuum relief valve, ball valve, 90-degree slow close valve, flowmeter, check valve, concrete saddle pipe support, and pressure coupling components as identified in the legend. Construction requirements specify concrete piling at the base, gravel pack installation with appropriate screening, vent and gravel feed lines, and slope grading to drain surface water away from the well. Reinforcement includes rebar wired together with Grade 40 specifications. The document is prepared by The Benham Group for the Department of the Air Force Civil Air Command located in Luke Air Force Base, Arizona, and is designated as sheet number 3 of 7 in the construction documentation set.