05-13-1996 Council Packet - Laserfiche WebLink

Home Browse Search

Highway 12 Sewer Capacity Issues April 29, 1996 page 3 The system is currently being metered to determine the available capacity (if any) in the system at this time, and to determine the level of sewer flows being generated by Orono and Long l-ake respectively. 3.Expansion of the Trunk Sewer System When Orono amended its comprehensive plan to allow development at densities greater than 2 acre residential in the north Highway 12 area, it was anticipated that a substantial increase in sewer capacity would be required to serve the projected development. Funding for this expansion was included in the 1989 Water and Sewer Bond issue in the amount of $600,000. Because the north Highway 12 area has not experienced substantial development to this point, the sewer expansion project has been deferred. We may nov. be at the point where it is necessary to move ahead with the sewer expansion project even though we still do not anticipate substantial development in the north Highway 12 area. This is due to the sewer projects planned for the north Long Lake area (50 units) and the ice arena project (15 units). If the metering of the sewer trunk system indicates significant available capacity, it may still be possible to defer the sewer expansion project until it is needed for a more substantial development project. Additional Issues Related to Sewer Expansion Two additional issues related to sewer expansion are the level of capacity to which the system should be expanded and the method to be used to accomplish the expansion. 1.Future Capacity Needs It is important to ensure the expansion provides sufficient capacity to meet all anticipated needs. This includes capacity needs related to all projected development along north Highway 12--from the Orono Schools property to Brown Road North, and the potential redevelopment of at least a portion of the light industrial area in the southeast quadrant of Old Crystal Bay Road and Highway 12. It may also be prudent to consider whether there is potential for sewered development in the southwest quadrant of Old Crystal Bay Road and Highway 12. The sizing of the trunk expansion should also take into account the city of Long Lake’s anticipated capacity needs, so that if Long Lake has additional capacity needs they can be addressed through a Joint project. 2.Method of Expansion A planned method of expansion is to expand the sewer trunk system through Long Lake to the Metro lift station in Long Lake. This involves the expansion of a number of different sections of the trunk system. Please see the attached map showing the various sections of the trunk system. This can be done either as one large project or on a staged basis. The single project method is the least costly and would be necessary in order for a substantial development to move ahead in the -lorth Highway 12 area. However, in the absence of a large development project, it may be cc.-i effective to address specific bottleneck areas.