Palmdale Water District Well 2 and 3 Rehabilitation

Description

The Palmdale Water District (PWD) is soliciting proposals from qualified licensed contractors to provide as-needed well rehabilitation services for the PWD’s production wells for a period of 6 months. Well rehabilitation is defined as restoring a well to its most efficient condition by various treatments or reconstruction methods. PWD has provided its Well Prioritization Plan as Well Historical Data (Attachment D)PWD owns 22 wells known as Wells, 2, 3, 4, 6, 7, 8, 10, 11, 14, 15, 16, 18, 19, 21, 22, 23, 25, 26, 29, 30, 32 and 33.  All wells to be rehabilitated are located within the PWD district boundaries (Attachments E -F) with addresses (Attachment G). Specifications and additional information for Well Numbers 2 and 3 (Attachment H and I respectively) are included for reference. Well depths range from 134 feet to 1030 feet below ground surface. Well casing diameters vary from 8 to 16 inches. Well production ranges from 80 - 2,100 GPM.The scope of work includes mobilization, demobilization, and site cleanup, removal and assessment of permanent pumping equipment, performing downhole video and Casing Inspection Thickness Measurement (CITM) surveys, removing accumulated sediment and debris from the well sump and oil from the water surface, mechanical and chemical cleaning of the well screens by brushing, initial development by swabbing and/or airlifting/pumping, final development by pumping and surging, aquifer pumping tests to confirm effectiveness of work performed, well disinfection, and repair and/or reinstallation of t