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Locking Steel flush mount <br /> Well plug with monument with <br /> O-ring seal f bolted cover <br /> Portland grout tremie application <br /> Either 2 or 4-inch <br /> Low Carbon Steel <br /> blank casing <br /> Bentonite seal(<5 feet) <br /> 77 <br /> Filter sand(1-2 feet below well screen to 5-10 feet <br /> Either 2 or 4-inch above well screen) <br /> Stainless steel casing, <br /> 0.020-inch slot <br /> Either 2 or 4-inch <br /> Stainless steel flush <br /> thread bottom cap <br /> *r— 3 to 5 feet Bentonite fill <br /> U� I to 5 feet Cement-grout fill <br /> Notes: Typical Monitoring Well Construction Diagram <br /> bgs—below ground surface <br /> Actual depths will be determined based April GSH Lathrop Facility G osyntecD <br /> on field conditions during installation. 2019 Joaquin County,California coil"Ultilflk <br />