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. . , � . WATER QUALITY :>.�_.•� � , ,. '4- .,.•��x;., �-�. • W/12/79 �°''�� 10. The Metropolitan Waste Control Commission 12. Local wastewater treatment plants, package is authorized to work with the cities of Jordan plants, stabil ization onds, group on-site and Belle Plaine with respect to their incor- disposa) systems,(�c�are acceptable to serve poration in the metropolitan wastewater Rural Centers anc�abate ollu i n treatment system if and when these munici- for i ti v e re erre palities desire to move in such a direction. o o was ewa er isposal for new rural residential development is the individual on- � site system. .Local.wastew�ter treatment Rural Service Area facilities, otherthan individual on-site systems, . serving nonresidential development should be In the Rurat Service Area, urbanization is not permitted if they are consistent with a anticipated and, as a result, a coordinated central Council-approved comprehensive sewer policy sanitary sewer system is not needed. Municipal plan. treatment works in the Rural Centers�vill have only modest expansion needs dur9ng the rest of 13. Metropolitan wastewater treatment plants in the century. They will be expected to achieve and Medina and Maple Plain will function as maintain water quality standards as established by plants should in the Rural Centers, with no sig- the state. Expectations of growth also apply to nificant service expansion planned unless the Medina and Maple Plain, which are served by their Metropolitan Council designates these munici- own rural treatment plants. Although under the palities as part of the Urban Service Area. • jurisdiction of the Metropolitan Waste Control - � Commission, the plants are located in and serve Rural Centers that are not designated for signifi- NONPOINT SOURCES OF POLLUTION cant future urban expansion. The 208 Water Quality Management Program con- The remainder of the Rural Service Area will be ducted by the Council over the 1976-78 period did served by individual on-site disposal facilities. not provide for preparing a plan and implementation However, several small pockets of urban density program dealing with nonpoint sources of water now exist in the rural area, particularly near lakes. pollution. The planning program, however, did A variety of properly designed, localized sewage provide for an overview evaluation of nonpoint disposal methods, including package plants, waste source contributions to water pollution based on . stabilization ponds and group-type on-site disposal published data and other available information. facilities, may well be needed to handle the pollut- The evaluation indicates that the quality of waters ants created by these pockets of development. The in the Area is affected by a variety of nonpoint principal purpose of these small group treatment sources of pollution, and in some instances the works is to abate existing pollution and meet water impacts may be quite substantial. quality standards, not to provide an impetus for additional urban-type development. These areas The overview study is not sufficient by itself to will be evaluated on an individual basis, based upon justify formulating specific policies to abate non- the topography, drainage, groundwater, surface point sources of pollution. This formulation awaits water, etc., for the provision of such facilities. completion of a much more definitive study. From the overview work, however, it is clear that a balanced program for improving water quality Policies must include nonpoint source management. 11. Metropolitan sewer service expansion is not allowed within the Rural Service Area, Policies �except in accordance with the schedule for expansion set forth in the system plan and as 14. The Metropolitan Council recognizes that � specified in the local plan submitted far nonpoint sources of pollution are a significant review and approved by the Cuuncil in threat to water quality in the Twin Cities accordance �vith the Metropolitan Lan�J Plan: Metropolitan Area, and will undertake efforts ning Act. to minimize such sources in the future by: 11