Agenda - Council - 04/14/1981 - Laserfiche WebLink

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- 2 - Since the approval of the original plan and specification, the City of Anoka formally requested that the Council consider the concurrent construction of the Rum River extention. This is the construction of the intercepting sewer from where the Anoka Interceptor ends at Highway 47 to the Rum River. The Council denied this request because there was not a demonstrated need for the extension at this time and that there were other feasible alternative interceptor routings than the one Anoka indicated. The City of Ramsey has verbally requested that they be allowed to connect several establishments along Highway in to the western terminus of the Anoka Interceptor immediately. The City has also requested that the second Ramsey connection west of Highway 47 be constructed in the immediate future. However, we have not received Ramsey's Comprehensive Plan. It is not scheduled to be received until April 1; therefore, until the City can substantiate the need for sewer service no action can be taken at this time regarding their requests. The final background item is regarding the fate of the Anoka treatment plant. The Anoka plant has a rated design capacity of 2.46 mgd. During 1980, the flow averaged 2.1 mgd, a rise of six percent over 1979. However, some minor problems exist at the treatment plant which limit its design capacity to 2.3 mgd and still be able to meet its NPDES permit limits. As can be seen any additional flow contributed by the Anoka Interceptor will bring the plant very near its actual design limit. Further discussion regarding the fate of the Anoka Plant will be part of the Water Quality Policy Plan amendment which the Council will act on in the near future. ANALYSIS Since the original approval of the plans and specifications, several important matters have surfaced. The MWCC has completed its 208 Facility Plan and its recommended alignment for the CAB Interceptor only calls for one river crossing at the Anoka plant and not two as was originally anticipated. The MWCC's 208 consultant also indicated that a substantial cost could be saved if some of the deepcuts or tunnelling originally approved as part of the Anoka interceptor was replaced with a pump station and force main. Based on these two items the MWCC redesigned the Anoka Interceptor to allow for a permanent connection to the Anoka plant and a ~epositioning of the pump station further upstream than the original location. Since the approved Development Program anticipated the pump station and force main to be interim facilities, the City of Anoka agreed to participate in the cost of these facilities. Since this is no longer the case, a Development Program amendment must be submi'tted and acted on prior to the Council commenting on the plans and specifications.