Title
Contract No. 1904197
Long Term CSO Control Plan
CIP # 270003/BCE Score:59.6
Body
Agenda of: October 28, 2020
Item No.: 2020-344
Amount: $7,748,507.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Sue F. McCormick
Chief Executive Officer
Great Lakes Water Authority
DATE: October 6, 2020
RE: Contract No. 1904197
Long Term CSO Control Plan
Vendor: LimnoTech
MOTION
Upon recommendation of Suzanne Coffey, Chief Planning Officer - Planning Services, the Board of Directors (Board) of the Great Lakes Water Authority (GLWA), authorizes the Chief Executive Officer (CEO) to enter into Contract No. 1904197, "Long Term CSO Control Plan" with LimnoTech, at a cost not to exceed $7,748,507.00 for a duration of 54 Months; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
The Clean Water Act of 1972 was the beginning of a national focus on improving the water quality of our rivers, lakes, and streams. The Clean Water Act introduced the National Pollutant Discharge Elimination System (NPDES) permit system, wherein DWSD, GLWA's predecessor organization, received its first permit in 1976. Beginning in the late 1980s, the permits required wet weather control measures. To better understand the effect of wet weather on its combined sewer system, DWSD began installing wet weather instrumentation in the 1970s. In the mid-1980s, DWSD installed two in-system storage devices to curb Combined Sewer Overflows (CSOs). These measures were just the beginning.
In the 1990's addressing wet weather issues became a very high priority. By 1998, DWSD had constructed three Retention Treatment Basins (RTBs), Pump Station #2 at the WRRF and seven in-system storage structures along the Rouge River. These assets resulted in cutting the untreated CSO volume nearly in half, from an estimated 21 billion gallons per year to approximately 12 billion gallons p...
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