Laserfiche WebLink
| glii <br /> w <br /> b' Collector systems shall be designed by a <br /> registered Professional Engineer , licensed in the • <br /> State of Minnesota, and certified by the MPCA as <br /> competent in the field of on-site system design ' <br /> c . Application to the Zoning Administrator shall be <br /> accompanied by engineering drawings and <br /> specifications and shall demonstrate compliance <br /> with the Zoning Ordinance, Plumbing Code and <br /> issues relating to joint ownership of land , joint <br /> system maintenance responsibilities, homeowners <br /> associations, easements, covenants and such other <br /> items as may apply to the specific proposal . <br /> (2) Design . <br /> a. The size of common Soil Treatment Systems shall be <br /> based on the sum of the areas required for each <br /> • dwelling unit or establishment being served . <br /> b. Sewage Tanks may be either individually installed <br /> at each Dwelling ..Unit or a_common Sewage Tank . <br /> Common Tanks shall be sized using the formula: <br /> one thousand one hundred twenty five ( 1 , 125) <br /> gallons plus seventy-five (75) percent of the <br /> daily sewage flow, except that the minimum size <br /> for any common sewage tank shall be three thousand <br /> (3,000) gallons, and shall be compartmented if a � <br /> single tank . <br /> (3) Sewers. <br /> a. Sewer systems shall be designed for the daily <br /> flows for dwelling units plus flows from other <br /> establishments. <br /> h. The sewer for systems wi±h commoo .Sewage Tanks <br /> shall be so constructed to give mean velocities, <br /> when flowing full , of not less than two (2) feet <br /> per second . The sewer for systems with individual <br /> Sewage Tanks shall be so constructed and designed <br /> to hydraulically conduct the flow for which <br /> designed . In no case shall a gravity sewer be <br /> less than four (4) inches in diameter. <br /> c . Infiltration or exfiltration shall not exceed two <br /> hundred (200) gallons per inch of pipe diameter <br /> per mile per day. <br /> d ' Cleanouts, brought flush with or above finished <br /> grade shall be provided wherever a common sewer <br /> joins an individual Building Sewer or piping from <br /> an individual Sewage Tank , or every one hundred <br /> ( 100) feet, whichever is less, unless manhole <br /> access is provided ' <br /> 34 <br /> 2 <br /> A <br />