CC MEETING: March 3, 2015
DATE: February 16, 2015
TO: Leonard Martin, City Manager
FROM: Robert Kopp, Director of Public Works
Title
Consider Approval Of The Purchase Of Contract Services With Layne Christensen Company For Emergency Repair To The Columbian Club Water Well In An Amount Not To Exceed $279,135.50.
Body
BACKGROUND:
This item is for the emergency procurement for contract services for the rehabilitation of the 2.2 million gallons per day (MGD) public drinking water well pump located at the Columbian Club Pump Station. The well pump assemblies locked up due to wear and material loss over time. The pump was originally installed in 1974 by the Layne Christensen Company. It is primarily used during seasonal high water demand periods and in emergency situations. The production of the well is calculated in with the Dallas Water Utilities potable water purchases to meet the required minimum capacity rule of the Texas Commission on Environmental Quality. The water well was last rebuilt in 1998. Since that time the pump assemblies have become obsolete.
Layne Christensen Company was contacted to pull the pump to investigate the cause of failure. This company has an excellent reputation in the industry and has done work for Carrollton's system in the past so staff initiated an emergency procurement for their services. Staff was unable to use the routine procurement process due to the substantial effort and process needed to inspect and repair the well system. A thorough, comprehensive and accurate analysis required the entire 2,000 foot pump system's removal and transport taken to Christensen's facility for inspection. It was discovered that the pump required a complete rebuild due to its age and life span of operation.
FINANCIAL IMPLICATIONS:
The cost to remove, rebuild the pump, replace piping, video inspection of the well casing, cleaning casing and reinstallation was $279,135.50. Without this well the city's only alternativ...
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