Palmdale Water District Well 2 and 3 Rehabilitation

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 the permanent pumping equipment.

The contractor shall furnish all labor, equipment, materials, supplies, transportation, and all other items necessary for rehabilitation, redevelopment, and testing of wells 2 and 3 according to the details within the solicitation.

PWD, originally established as The Palmdale Irrigation District in 1918, was formed under Division 11 of the California Water Code to deliver irrigation water to approximately 4,500 acres of agricultural land within its boundaries. Under this authority, PWD's core functions remain: to acquire, control, conserve, store, and distribute water for the beneficial use of its residents and water users.

Today, PWD is an independent special district governed by a publicly elected five-member Board of Directors, each representing a division within the service area.

PWD is located in northern Los Angeles County, within the Antelope Valley, and provides potable water to approximately 126,800 residents across the City of Palmdale and surrounding communities. PWD maintains roughly 27,100 active service connections and receives water from three primary sources:

• Groundwater, disinfected and pumped directly into the distribution system;
• Littlerock Dam Reservoir (LRD); and
• The State Water Project (SWP).