Memorandum

City of Lawrence

Utilities Department

TO:	Diane Stoddard – Interim City Manager Casey Toomay – Assistant City Manager
CC:	Dave Wagner – Director of Utilities Mike Lawless – Deputy Director of Utilities Beth Krishtalka – Assistant to Director Mark Hegeman – Utilities Operations Superintendent Dave King – Utilities Maintenance Superintendent Bob Brower – Utilities Field Operations Superintendent
FROM:	Philip Ciesielski – Assistant Director of Utilities
DATE:	August 13, 2015
RE:	Set a bid date for Bid No. B1543 Project UT1417 Clinton Water Treatment Plant Raw Water Pump Station Improvements.

Background

The 2012 Integrated Water Utilities Plan and adopted scenario 5 Capital Improvement Plan identified, and provided funding for, pumping and electrical improvements to the Clinton Water Treatment Plant Raw Water Pump Station.

Project Description

The existing Clinton Water Treatment Plant Raw Water Pump Station contains 4 pumps and associated electrical equipment to pump a firm capacity of 20 million gallons per day (MGD). The facility houses the pump and motor equipment, the electrical motor control center, switchgear, variable frequency drives (VFD) and other electrical equipment within the same space. The interior building environment is not currently controlled for heat, insects, dust and debris. Ventilation is provided via 2 large unfiltered sets of fans and intake louvers. The heat buildup within the structure, large number of insects and debris such as cottonwood seeds are detrimental to the long-term operation of the installed pump motors and electrical gear. This was particularly evident during the summer of 2011 when, due to continued interruptions in equipment service, staff constructed a temporary air-conditioned enclosure around portions of the electrical switchgear and VFDs to keep it from faulting out due to high internal building temperature. Continued high building temperatures contributed to the failure, and 2014 replacement, of the motor and VFD on pump no.4. With planned pumping capacity increases, and the installation of additional variable frequency pump drives the unconditioned space will become increasingly problematic for the reliable and efficient operation of the electrical equipment.

The current project will construct an addition to the existing building to house the VFD’s and other sensitive electrical equipment. This addition will be isolated from the existing unconditioned space and equipped with heating, and air-conditioning appropriate for the installed equipment. The project will also replace the existing 5 MGD pump no.2 with a 10 MGD pump/motor/VFD bringing the pump station to its design, firm capacity of 25 MGD; replace the existing VFDs on pumps no.1 & no.3; install a bypass on the existing VFD for pump no.4 and reinstall it in the new space; replacement of the existing incoming electrical service transformers to meet the increased pumping capacity load requirements; replace the existing 36” diameter steel pump discharge piping; and reroof and fence the existing building.

Project Status

Black & Veatch have completed the plans and contract bid documents, the US Army Corps of Engineers have reviewed the project, and the project is ready to advertise for bidding.

Anticipated Project Schedule

Advertise for Bid	August 26, 2015
Pre bid Meeting	September 8, 2015
Bid Opening	September 22, 2015
Project Completion	November 2, 2016

Project Funding

The project is funded from the Department of Utilities Bonded Construction Fund per Resolution No. 7062.

Action

Set a bid date of September 22, 2015 for Bid No.B1543 Project UT1417 Clinton Water Treatment Plant Raw Water Pump Station Improvements.