10-09-1995 CC - Laserfiche WebLink

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Page 2 RE: Bridges Technology Park 8400 Coral Sea Street Mounds View, Minnesota CEC Project No. C95082 CL1RKWe don't recommend storm sewer under buildingfor the followingreasons: ENGINEERING CORPORATION 1. The foundation walls are required to be lowered to allow storm sewer pipe to pass through the wall(Best Management Practices). 2. Maintenance of the storm sewer would be difficult. 3. The foundation walls are required to be lowered to allow storm sewer pipe to pass through the wall (Best Management Practices). 4. Maintenance of the storm sewer would be difficult. Option #2: Storm water to be discharged into Coral Sea Street This option was first considered in early August. The City of Blaine was contacted and we were given a fairly negative response by the City Engineer, Chuck Lenthe. The negative response was not due entirely to the City storm water system line capacity as much as to the hookup fees. The concept was not pursued heavily because Phase 2 (Lot 2) building layout was considered extremely preliminary. In late August, when the Phase 2 of Bridges Technology Park came to light, the City of Blaine was addressed again on this issue. Ron Henrickson, City of Blain Planning director, stated he needed a set of plans showing Lots 2 and 3 and the proposed Grading and Utilities Plan. These plans were sent to his office on 9/7/95, for City of Blaine review of acceptability of the storm water runoff of Lots 2 and 3. On 9/12/95 I received verbal approval from the City of Blaine that their storm sewer system will accept our proposed runoff and no discharge rate restrictions needed to be performed. Payment is to be made to the City of Blaine for hook up charges. SUMMARY: Reviewing the above options for effectiveness, cost, maintenance and durability, the most practical solution is to discharge the storm water from the East parking lot into Coral Sea Street. Sincerely, CLAR ENGINEER/ G CORPORATION ,I . 6_MA.1 Thomas J. Ce are Project Engineer TJC/mgc