Title
Proposed Amendment No. 2
Contract No. 2204670/SCN-0000223
Water Testing Supplies
O&M
Body
Agenda of: November 20, 2025
Item No.: 2025-364
Amount: Original Contract $537,784.30
Amendment No. 1 373,672.90
Proposed Amendment No. 2 195,020.75
Total Contract Amount $1,106,477.95
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Suzanne R. Coffey, P.E.
Chief Executive Officer
Great Lakes Water Authority
DATE: October 31, 2025
RE: Proposed Amendment No. 2
Contract No. 2204670/SCN-0000223
Water Testing Supplies
Vendor: IDEXX Distribution, Inc.
Status: Amendment/Change Order
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. 2204670/SCN- 0000223, Proposed Amendment No. 2, “Water Testing Supplies” with IDEXX Distribution, Inc., with an increased cost of $195,020.75, for a total cost not to exceed $1,106,477.95, with no increase in duration for a total duration of three (3) years; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
IDEXX products are being used by five water treatment plants (WTPs), Water Quality group and Water Resource Recovery Facility (WRRF) for microbiological analysis of water (as required by Safe Drinking Water Act) and wastewater. Microbiological examination of water and wastewater involves lab testing to assess microbial contamination and quality by identifying and quantifying microorganisms like coliforms, E. coli, and others. These examinations are crucial for ensuring the safety of drinking water and monitoring the effectiveness of wastewater treatment.
JUSTIFICATION
The original contract was set up between GLWA and IDEXX in March 2023 for two years with one renewal option which is ending in February 2026. However, increased funding is needed on this contract due to increase in workload of the Water Quality group during main breaks and emergencies, specifically boil water advisory notices requiring more reagents, supplies and better technology equipment to offer quicker results. In addition, there was an increase in the required sample collections due to our member partner’s population increase, as well as increases in the cost of supplies and shipping.
PROJECT MANAGEMENT STATUS
Original Contract Time 2 years (03/01/2023 - 02/28/2025)
Amendment No. 1 1 year (03/01/2025 - 02/28/2026)
Proposed Amendment No. 2 0 days (03/01/2025 - 02/28/2026)
New Contract Time 3 years (03/01/2023 - 02/28/2026)
PROJECT ESTIMATE
Original Contract Price $ 573,784.30
Amendment No. 1 373,672.90
Proposed Amendment No. 2 195,020.75
New Contract Total $1,106,477.95
FINANCIAL PLAN IMPACT
Summary: The services provided by the contract with IDEXX are part of the budget and financial plan for the water quality laboratory, water treatment plants laboratories, and wastewater laboratories. The purchase of the laboratory supplies varies from year to year due to water quality and regulation requirements. The value of the proposed contract exceeds the current financial plan in total. Sufficient funds will be provided as needed in the Operations & Maintenance (O&M) financial plan accordingly during the FY 2026 budget amendment process, first from other laboratory supplies budget, secondly from other budgeted areas, and finally from the unallocated reserves.
Funding Source: Operations & Maintenance (O&M) Budget
Cost Center(s): Water Quality........................... 882121
Water Works Park WTP........... 882131
Springwells WTP……………… 882141
Northeast WTP…………….......882151
Southwest WTP……………..... 882161
Lake Huron WTP……………... 882171
Wastewater Laboratories……. 892235
Expense Type: Laboratory Supplies
Estimated Cost by Year and Related Forecast Variance: See table below.
Fiscal Year Amount
FY 2023 Amended Budget $ 11,186.31
FY 2024 Amended Budget 238,976.95
FY 2025 Amended Budget 405,330.83
FY 2026 Budget (Prorated) 221,000.00
Financial Plan Forecast $ 876,494.09
Proposed Contract Amount $1,106,477.95
Variance (positive / (negative)) ($ 229,983.86)
COMMITTEE REVIEW
This item was presented to the Operations and Resources Committee at its meeting on November 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.