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PC Exhibit E <br />City Code Excerpts <br />Sec. 58-50. - More restrictive design and construction standards. <br />All ISTS permit applications, site evaluations, design specifications, construction methods, and <br />material specifications shall meet the parts of Minnesota Rules chapter 7080 adopted by reference in <br />section 58-43 with the following additional minimum standards: <br />(1) Site evaluation. The site evaluation report shall include the following: <br />a. Soil borings. At least three soil borings shall be completed for each new drainfield site <br />designed. Each soil boring must be located within the drainfield site or within close <br />proximity along similar contours such that similar soil conditions are likely. For additions to <br />an ISTS, at least one soil boring shall be made in the expansion area. <br />b. Percolation tests. At least two percolation tests shall be completed for each new drainfield <br />site designed. Each percolation test must be located within the drainfield site or within <br />close proximity along similar contours such that similar soil conditions are likely. For <br />additions to existing ISTS's, at least one percolation test shall be completed in the expansion <br />area. <br />C. Plot plan. A scale drawing of the entire lot showing the following: <br />1. All property lines and lot dimensions. <br />2. All existing and proposed structures. <br />3. All existing or proposed well locations, or water supply piping. <br />4. Relative elevations of house, lot corners and drainfield areas. <br />5. Slope of ground at drainfield sites by contour lines or direction arrows and slope <br />percentages. <br />6. Location of all percolation test holes and soil borings with identifying symbols and <br />relative ground elevations of each. <br />7. Primary and alternate drainfield areas identified. <br />8. Distance from primary and alternate drainfield areas to property lines, well locations, <br />and any lake, stream, marsh or drainage channel within 75 feet of any part of the <br />system. <br />(2) ISTS design. ISTS design specifications shall include proposed flows or other sizing information, <br />minimum sewage tank capacity, minimum soil treatment area requirements, a plan of the <br />component layout, and all other information necessary to assure the city that the ISTS is <br />designed and will be constructed to receive, treat and dispose of all of the sewage from the <br />building served. Footing or roof drainage, water softener recharge water, garage floor drainage, <br />toxic chemicals, flammable liquids, animal wastes, commercial process water and commercial <br />kitchen grease shall not enter any portion of the ISTS but shall be separately treated and <br />disposed of according to the applicable regulations of the MPCA, the state board of health and <br />the city. <br />a. Setbacks. The minimum setback distance requirements are as follows: <br />Page 1 <br />