Title
Contract No. 2204214
Ferric Chloride
O&M
Body
Agenda of: April 26, 2023
Item No.: 2023-135
Amount: $5,084,700.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Suzanne R. Coffey, P.E.
Chief Executive Officer
Great Lakes Water Authority
DATE: March 30, 2023
RE: Contract No. 2204214
Ferric Chloride
Vendor: Kemira Water Solutions
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 Contract No. 2204214, "Ferric Chloride" with Kemira Water Solutions, at a cost not to exceed $5,084,700.00 for a duration of one (1) year; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
The Water Resource Recovery Facility (WRRF) at the Great Lakes Water Authority is required to remove phosphorus (P) to meet effluent limits required in the plant's National Pollutant Discharge Elimination System (NPDES) permit. The primary method for removing P at the WRRF is by adding iron salts (ferric chloride) to the wastewater stream which reacts with the phosphorus and precipitates out of the flow stream in the primary clarifiers.
Phosphorus removal is desired to reduce the impact of higher nutrient loadings (eutrophication) on the receiving water. Eutrophication is a cause of the seasonal cyanobacteria blooms (harmful algae blooms, HABs) in the receiving water body.
JUSTIFICATION
The WRRF is required to remove phosphorus (P) to meet effluent limits required in the plant's NPDES permit. Ferric Chloride is an essential chemical necessary for treatment of Phosphorus at the WRRF to ensure compliance with its permit. The exact usage of the chemical is difficult to predict since the usage is weather dependent.
FINANCIAL PLAN IMPACT
Summary: The use of Ferric Chloride is anticipated as an on-going component...
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