Title
Contract No. 1802543
Rehabilitation of Ferric Chloride Feed System at PS-1 and Complex B Sludge Lines (CIP# 211008)
Body
Agenda of: February 27, 2019
Item No.: 2019-051
Amount: $2,322,045.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Sue F. McCormick
Chief Executive Officer
Great Lakes Water Authority
DATE: February 27, 2019
RE: Contract No. 1802543
Rehabilitation of Ferric Chloride Feed System at PS-1 and Complex B Sludge Lines (CIP# 211008)
Vendor: Hazen and Sawyer, Inc.
MOTION
Upon recommendation of Navid Mehram, Chief Operating Officer - Wastewater, the Board of Directors (Board) of the Great Lakes Water Authority (GLWA), authorizes the Chief Executive Officer (CEO) to enter into Contract No. 1802543, "Rehabilitation of Ferric Chloride Feed System at PS-1 and Complex B Sludge Lines" with Hazen and Sawyer, Inc., at a cost not to exceed $2,322,045.00 for a duration of 32 months, including a 10% contingency; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
The National Pollutant Discharge Elimination System (NPDES) sets limits on the allowable concentration of Phosphorous in effluent wastewater from the Water Resource Recovery Facility (WRRF) operated by Great Lakes Water Authority (GLWA). The addition of Ferric Chloride in raw wastewater through the Ferric Chloride Feed System at Pump Station No.1 is key to the removal of phosphorous from wastewater and helps to protect receiving waters. The Ferric Chloride Feed System includes two 150,000 gallons storage tanks, two 175,000 gallons storage tanks, pumps and controls building, piping for pneumatic unloading and chemical feed, and other appurtenances.
Sludge Processing Complex B at the WRRF receives the waste activated sludge (WAS) from secondary clarifiers and sends it to Sludge Processing Complex A through sludge pipes for further processing. There is significant deposition in some of thes...
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