03-10-1976 Council Agenda - Laserfiche WebLink

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V February 19, 1976 Mr. Clayton Parks, Attorney City of Little Canada 1590 White Bear Avenue`: St. Paul, Minnesota 55109 Subject: Little Canada - Shoreview' Interceptor MWCC Project 71 -32 Dear Mr. Parks: The Metropolitan Waste Control Commission is the recipient of your letter of November 11, 1975 which requested clarification, of our planning for the Little Canada- Shoreview Interceptor and the pro- posed construction schedule. We apologize for this late reply. The Commission was authorized by the Metropolitan Council in the 1972 and 1973 Capital Budgets to proceed with the detail design (Preparation of plans and specifications) and the construction of the Little Canada -s Shoreview Interceptor. The authorization was also approved for financing with so called "reimbursement 'I funds" in the event that state and federal grants could not be secured. The Commissionconducted detail planning and design for an all-gravity interceptor which would allow the phase- out of the Grass Lake and Wabasso lift stations and, run in a south- easterly direction to Little Canada and through your industrial park. Numerous alignments were explored in view of the availability of rights of -way and also in attempt to avoid tunneling a section of the inter- ceptor under North Owasso Boulevard. The design of the interceptor was not a simple task and subsurface investigations were conducted and evaluated to ascertain that a recommended route was the most economical and most desirable. The Commission also prepared an Environmental Assessment in accord with the Environmental Quality Council to fulfill requirements and satisfy the concerns of environmentalists. The Environ- mental Assessment was distributed in draft form to affected local govern -' ments, other public agencies and interested parties for their input in the preparation of the final assessment. The Department of Natural Resources, upon review of the draft assessment, became concerned with interruption or creation of subsurface flow between the lakes in the area. In order to resolve the concerns of the Department of Natural Resources, it was necessary to re- evaluate the subsurface conditions along the planned alignment of the proposed interceptor. A comprehensive subsurface study required additional deep borings and piezometers. This investigation was time consuming and necessary to resolve the question of possible effects of the construction of the interceptor along the proposed alignment.