The information set forth in this section must be filed with the preliminary plat:
(A) A complete topographic map at a scale of 1”:100', 1”:50', 1”:40' or 1”:20' and with contour intervals not greater than two feet showing water courses, flood plain limits, marshes, rock outcrops and other significant features, at least 150 feet beyond the boundary of the proposed plat, at least one print of the preliminary plat must be superimposed on a copy of the topographic map. U.S. Geodetic Survey datum must be used for all topographic mapping. Fulfillment of this requirement may be requested by the city staff, Planning Commission or City Council.
(B) Soil absorption tests where septic tanks are proposed, and any other subsoil information requested by the city staff, including soil bearings and water table.
(C) Plans for water supply, sewage disposal, proposed grades, drainage and flood control including the proposed locations, size and gradient of proposed sewer lines and water mains and such other supporting data as may be required by the city staff, Planning Commission, or the City Council.
(D) Center line gradients of proposed streets and alleys.
(E) Where the subdivider owns property adjacent to that which is being proposed for the subdivision, the Planning Commission may require that the subdivider submit a sketch plan of the rest of the subdivider’s properties so as to show the relationship of the proposed subdivision to the future development of the adjacent property.
(F) Indicate if the land is registered or abstract property.
(G) Indicate other information as requested by the Departments of Community Development, Public Works or Parks and Recreation such as sidewalks, walkways, bikeways, berming or landscaping with a schedule of plantings or anticipated ground level building elevation(s).
(H) All plats within the designated Mississippi River Critical Area as defined by Executive Order No. 79-19 of the Critical Area Act of 1973, M.S. Chapter 116G, must indicate:
(1) Existing and proposed grades at two foot contour intervals.
(2) A landscaping plan as requested by the City Planner to compensate as transitioning, erosion control or improving the living environment.
(3) Submit an erosion and sedimentation control plan as requested by the City Engineer and the City Planner.
(4) Calculate and graphically describe the amounts and location of cut and fill determined in cubic yards. Length of storage and prevention measures for wind and water erosion must also be indicated.
(I) Drainage ponds. Determination shall be made between drainage ponds designed to hold water on a continuous basis and those designed to hold water on an infrequent basis. Areas designed for intermittent water storage shall be landscaped and maintained in accordance with required landscape provisions. Creation of larger, regional ponds is encouraged.
(J) Erosion and sediment control shall be addressed as follows:
(1) The development shall conform to the natural limitations presented by topography and soil so as to create the least potential for soil erosion.
(2) Erosion and siltation control measures shall be coordinated with the different stages of construction. Appropriate control measures shall be installed prior to development when necessary to control erosion.
(3) Land shall be developed in increments of workable size such that adequate erosion and siltation controls can be provided as construction progresses. The smallest practical area of land shall be exposed at any one period of time.
(4) When soil is exposed, the exposure shall be for the shortest feasible period of time, as specified in the development agreement.
(5) Where the topsoil is removed, sufficient topsoil shall be set aside for respreading over the developed area. Topsoil shall be restored or provided to a minimum depth of three inches and shall be of a quality at least equal to the soil quality prior to development.
(6) Natural vegetation shall be protected wherever practical.
(7) Runoff shall be diverted to a sedimentation basin before being allowed to enter the natural drainage system.
(8) Development shall comply with and follow the applicable best management practices for erosion and sedimentation control as described in the Minnesota Pollution Control Agency's (MPCA) Best Management Practices Handbook as may be amended.
(9) All stormwater facilities are subject to inspection for conformance to approved plans prior to acceptance by the city.
(10) Projects initiated or directed by the city shall not be exempt from these rules.
('72 Code, § 345:16) (Am. Ord. 1984-447(A), passed 4-9-84; Am. Ord. 2001-961, passed 11-26-01; Am. Ord. 2002-985, passed 11-25-02)