J--Rehab Well no. 2 at Yosemite Valley - Yosemite NP

The National Park Service is seeking a professional deep well specialist to rehabilitate Well #2 in Yosemite Valley. The well produces up to 1000 gallons per minute and requires repairs to the pump and shaft. The scope of work includes removing the motor and base from the well column, pulling the turbine pump set, assessing conditions of all components below grade, and refurbishing as necessary. The contractor must verify that the repairs will not exceed the scope or award amount of the purchase order and notify the contracting officer in writing before proceeding with any further work. The work must be done in compliance with AWWA C654-03 (or most recent) for disinfection of the well and well equipment. • Remove motor and base from the well column • Pull turbine pump set at approximately 187’ depth • Assess conditions of all components below grade and refurbish as necessary • Verify that the repairs will not exceed the scope or award amount of the purchase order • Notify the contracting officer in writing before proceeding with any further work • Re-install all components and adjust shaft to optimum impeller clearance • Remain onsite while NPS personnel initiate start-up procedures to verify production of water from the pump