Well 15 Replacement/ Replace Vertical Turbine Pump Assembly

NAVFAC PWD Indian Head intends to issue a sole source award utilitzing Simplified Acquisition Procedures to A.C. Schultes to provide materials and labor to replace the well pump, motor, and drop pipe of Well 15 at bldg. 1893, replace the piping inside the well house and replace the electric motor starter with a VFD. A.C. Schultes is the only contractor in the local service area (MD, VA, and DC) that is capable of completing this work. No other contractor had the equipment or personnel experience to handle a pump casing size of 10 inch. A.C. Schultes Inc. is the only company capable that can complete and warranty the work. Work is to include mobilizing a two man pump service crew with crane to site. Removing the existing vertical turbine pump assembly from Well 15. Sound the well and perform a video inspection of well casing. Notify NAVFAC representative of any discrepancies with the casing. Based on the results of the video inspection redevelop the well using the riser swab method. This process will include: Install a 10” riser swab on 4” pipe. Swab the existing screens at a rate of 5 feet per hour. Clean and renew effort of accumulated fill from the well bottom. Remove 4” pipe and swab. Perform a post redevelopment video inspection and report findings. Supply and install a new 6CHC-9 stage submersible pump powered by a new 50 HP, 460 volt, 3 phase motor. Supply and install 210’ of 6” carbon steel drop pipe, submersible wire, ¼” poly water level tube, and (1) one 6” ductile iron check valve. The pump will be designed to yield 250 GPM at 570’ TDH. Supply and install a new 4” diaphragm control valve. Core the well house wall for new pipe installation. Supply and install new 4” overboard pipe with 4” OS&Y gate valve, 4” ductile iron pipe, and 4” flanged tee. Remove existing butterfly valve prior to backflow preventer. Replace the existing 4” spool pipes on both side of the existing flowmeter. Replace 6” x 4” concentric reducer and 5” spool pipe going to main. Mobilize and electrical crew to the site. Remove the existing across the line motor starter. Supply and install new model VFD complete with disconnect and load reactor in stainless steel panel. The VFD will be operated with a transducer mounted in the 4” pipeline for flow control.

Division 02 -	Existing Conditions, Subsurface Investigation.
Division 03 -	Concrete, Cast-in-Place Concrete.
Division 22 -	Plumbing, Plumbing Piping, Plumbing Equipment.
Division 26 -	Electrical, Instrumentation and Control for Electrical Systems.
Division 33 -	Utilities, Water Utilities, Water Utility Distribution Piping, Water Utility Distribution Equipment, Water Utility Pumping Stations, Wells.
Division 44 -	Pollution and Waste Control Equipment, Water Pollution Control Equipment.