Title
Requisition No. REQ-0001827
Rehab of Secondary Clarifiers
CIP# 261001 / BCE Score: 72.0
Body
Agenda of: February 26, 2025
Item No.: 2025-046
Amount: $1,468,399.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Suzanne R. Coffey, P.E.
Chief Executive Officer
Great Lakes Water Authority
DATE: February 5, 2025
RE: Requisition No. REQ-0001827
Rehab of Secondary Clarifiers
Vendor: Krohne, Inc.
Status: New Contract/PO
MOTION
Upon recommendation of Navid Mehram, Chief Operating Officer - Wastewater Operating Services, the Board of Directors (Board) of the Great Lakes Water Authority (GLWA), authorizes the Chief Executive Officer (CEO) to enter into Requisition No. REQ-0001827, “Rehab of Secondary Clarifiers” with Krohne, Inc., at a cost not to exceed $1,468,399.00 for a duration of 730 days; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
The 25 secondary clarifiers and their associated flow meters have been in operation at the Water Resource Recovery Facility (WRRF) since the mid-1970s. Each clarifier includes two (2) flow meters, one (1) that is 18” in size and one (1) that is 48” in size. The original meters are obsolete, and replacement parts are not available. As the meters have failed, the WRRF replaced them with similar flow meters manufactured by Krohne. Nine (9) Krohne meters have been installed to date, and they have met performance and maintenance expectations.
These meters are a part of CIP No. 261001, for the rehabilitation of the secondary clarifiers.
JUSTIFICATION
The lead time for delivery of these meters is approximately twelve months. Ordering them now will ensure that they are ready to install when the construction phase for CIP No. 261001 is scheduled to begin.
GLWA requests a specialized procurement/single source requisition with Krohne to standardize the secondary clarifier meters. This will simplify maintenance and reduce the volume of spare parts required. The electrical components of the meters are not interchangeable with those from other manufacturers. Meters of this size and criticality require specialized training and documentation, so standardization is more efficient for long-term maintenance. The Krohne meters are also easier to maintain than other meters. The delicate electrodes of the large 48” meters can be removed while the meter stays in place, significantly reducing the hours required for repair.
FINANCIAL PLAN IMPACT
Summary: Sufficient funds are provided in the financial plan for this project.
Funding Source: Sewer Construction Fund
Cost Center: Wastewater
Expense Type: Construction (5421-880000.000-616900-PRJ-261001)
Estimated Cost by Year and Related Estimating Variance: See table below.
Fiscal Year
FY 2027 Plan $1,712,000.00
FY 2028 Plan 13,481,000.00
FY 2029 Plan 12,067,000.00
FY 2030 Plan 2,740,000.00
Financial Plan Estimate $30,000,000.00
Proposed Contract Award 1,468,399.00
Estimating Variance $28,531,601.00
This positive estimating variance is reserved for the construction contract.
COMMITTEE REVIEW
This item was presented to the Operations and Resources Committee at its meeting on February 12, 2025. 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.