1g. 1997 SWMP Water Quality Projects: Advertise for Bids.CITY OF
SSE
690 COULTER DRIVE • P.O. BOX 147 • CHANHASSEN, MINNESOTA 55317
(612) 937 -1900 FAX (612) 937 -5739
MEMORANDUM
TOO Don Ashworth, City Manager
FROM: Phillip Elkin, Water Resources Coordinator
DATE: September 3, 1997
SUBJ: Authorize Advertising for Bids - 1997 Surface Water Management Projects File
No. SWMP -120
I would ask that the Council authorize the advertising of bids for the proposed 1997 Surface
Water Management projects.
These projects are proposed to be constructed in areas along Lake Minnewashta where untreated
runoff flows directly to the lake, and treatment ponds are not feasible because of land use
constraints. The Stormceptor manhole is a relatively new technology, where a large manhole
fitted with a special insert is connected to an existing storm -sewer system. The insert is designed
to tra p settlement before water, leaves the structure. Tests on these ' systems have produced results
showing sediment removal consistent with that ofNURP ponds.
It is proposed that construction take place this fall once the peak lake season is over.
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