Title
GLWA-CON-281
Southwest Water Treatment Plant High Lift Pump Discharge Valve Actuators Replacement and HLP System Modification
Body
Agenda of: August 22, 2018
Item No.: 2018-872
Amount: $5,271,632.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Sue F. McCormick
Chief Executive Officer
Great Lakes Water Authority
DATE: August 1, 2018
RE: Contract No. GLWA-CON-281
Southwest Water Treatment Plant High Lift Pump Discharge Valve Actuators Replacement and HLP System Modification
Vendor: Weiss Construction Co., LLC
MOTION
Upon recommendation of Cheryl Porter, Chief Operating Officer - Water and Field Services, the Board of Directors (Board) of the Great Lakes Water Authority (GLWA), authorizes the Chief Executive Officer (CEO) to enter into Contract No. GLWA-CON-281 “Southwest Water Treatment Plant High Lift Pump Discharge Valve Actuators Replacement and HLP System Modification” with Weiss Construction Co., LLC, at a cost not to exceed $5,271,632.00 for a duration of three (3) years and one (1) month; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
GLWA’s Southwest Water Treatment Plant (SWWTP) is one of five water treatment facilities. The existing oil-hydraulic system is leaking and at the end of its service life. The leaking system poses safety concerns and replacement is needed. A study to determine the best solution for this system’s replacement was initiated in June of 2015 under contract number SCP-CS-1653 “Evaluation of Alternatives for New High-Lift Discharge Valve Actuators at the Southwest Water Treatment Plant”. The SCP‐CS‐1653 study was completed in January 2016 with the recommendation of replacing the existing oil-hydraulic system complete with electric‐motor actuators. The design for the new actuators and additional improvements was performed and completed under contract number GLWA-CS-034 “High Lift Pump Discharge Valve Actuators Replacement at Southwest Water Treatment Plant”.
JUSTIFICATION
The existing oil‐hydraulic system for the valve actuators on the discharge of the high‐lift pumps located at the SWWTP needs replacement. This system is exhibiting excessive leaking of hydraulic oil that collects along the existing floor. These leaks cause equipment shutdowns and increased maintenance and repair. Furthermore, spare parts are difficult to obtain.
The system is in an area that delivers finished water and most of the valves and pumps are more than sixty years old and at the end of its service life. While leaks within oil‐hydraulic system have not caused water quality issues to date, it was determined that elimination of the potential for leaks to reach the finished water is prudent.
FINANCIAL PLAN IMPACT
Summary: Sufficient funds are provided in the financial plan for this project.
Funding Source: Water Construction Bond
Cost Center: Water Engineering
Expense Type: Construction (5519-882111.000-616900-113002)
Estimated Cost by Year and Related Estimating Variance: See table below.
Fiscal Year Amount
FY 2019 Budget $ 1,100,000
FY 2020 Budget 2,800,000
FY 2021 Budget 1,100,000
Financial Plan Estimate $5,000,000
Proposed Contract Award 5,271,632
Negative Estimating Variance $ (271,632)
SAVINGS, COST OPTIMIZATION, AND REVENUE ENHANCEMENT IMPACT
This project replaces existing oil hydraulic high lift valve actuators as identified from a study completed in January 2016. Cost savings are not determinable at the time of this award.
The award of this contract to the lowest, qualified bidder creates a negative estimating variance of $271,632. This variance will be funded from capital reserves.
Project estimate $5,000,000
Proposed award $5,271,632
Capital reserve adjustment $(271,632)
COMMITTEE REVIEW
This item was presented to the Operations and Resources Committee at its meeting on August 8, 2018. The Operations and Resources Committee unanimously recommended that the GLWA Board adopt the resolution as presented.
SHARED SERVICES IMPACT
This item does not impact the shared services agreement between GLWA and DWSD.