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be made in the expanaion area. <br />(c) Fo r additions to existing systems, at leart one percolation test shall <br />be made in the expansion area. <br />a. <br />b. <br />c. <br />d. <br />e. <br />f. <br />g- <br />h. <br />3. Plot Plan. A scale drawing of the entire lot showing the following: <br />All property lines and lot dimensions. <br />All existing and proposed structures. <br />All existing or proposed well locations, or water supply piping. <br />Relative elevations of house, lot comers and drainfield areas. <br />Slope of ground at drainfield sites by contour lines or direction arrows and slope <br />percentages. <br />Location of all percolation test holes and soil borings with identifying symbols <br />and relative ground elevations of each. <br />Primary and alternate drainfield areas identified. <br />Distance from primary and alternate drainfield areas to property lines, well <br />locations, and any lake, stream, marsh or drainage channel within 75 ft. of any <br />part of the system. <br />Source: City Code Effective Date: 4-1-84 <br />B. Sys tem ISTS Design. System ISTS design specifications shall include <br />proposed flows or other sizing information, minimum sewage tank capacity, minimum soil treatment <br />area requirements, a plan of the component layout, and all other information necessary to assure the <br />City that the sys tem ISTS is designed and will be constructed to receive, treat and dispose of all of <br />the sewage from the building served. Footing or roof drainage, water softener recharge water, garage <br />floor drainage, toxic chemicals, flammable liquids, animal wastes, commercial process water and <br />commercial kitchen grease shall not enter any portion of the sy stem ISTS but shall be separately <br />treated and disposed of according to the applicable regulations of the MPCA, the Minnesota State <br />Board of Health and the City. <br />1. Setbacks. The minimum setback distance requirements are as follows; <br />Feature <br />Water Supply Well <br />Wetland <br />Lake; <br />General Development <br />Recreational Development <br />Natural Environment <br />Tributaries, Streams <br />Driveways, Sidewalks, Decks and other Hardcover <br />Property Lines, Buildings and Buried Pipes <br />Lawn Sprinkler Systems <br />Sewaqe Tank and Soil Treatment Area <br />75' <br />75' <br />75' <br />75' <br />150' <br />75' <br />20' <br />20' <br />10' <br />Page 12 of 22