Laserfiche WebLink
M. David Nitz <br />Page 3 <br />January 12, 1987 <br />If as -built elevations are different from those above, headloss <br />should be recalculated to ensure proper pump selection. <br />The pump should be rigged with mercury float switches to dose about <br />175 gallons of effluent to the mound. An additional mercury float <br />switch should be installed on a separate circuit to an alarm device <br />to warn of failure. The mercury switches should be rigged to allow <br />700 gallons reserve capacity in the pumping chamber. All <br />electrical connections should be watertight. <br />The septic tanks should each have at least 1,000 gallons capacity. <br />The pumping chamber should have at least 1,000 gallons capacity. <br />It is recommended that a water meter be installed to monitor water <br />use. Exterior sillcocks should be excluded from the metered water <br />system. The water meter should be read periodically and water use <br />patterns adjusted if necessary to ensure that the design sewage <br />flow of the septic system is not exceeded. <br />The area for the proposed primary septic system should be roped off <br />to prevent vehicular traffic on the site. Construction of the <br />mound system should begin only when the moisture content of the <br />topsoil is lower than the plastic limit. <br />It is highly recommended that the installer of this septic system <br />holds an Individual Sewage Treatment Systems Certificate for <br />installation issued by the Minnesota Pollution Control Agency. <br />The sole purpose of soils data contained herein is evaluation of <br />soil suitability for on-ait,�t absorption of septic tank effluent at <br />the test site. AlthOlAgh so'_1 texture and horizonation information <br />and groundwater elevation data may be helpful for the setting of <br />basement elevations at this site, we cannot warrant any such inter- <br />pretations or use of this c.ata for other purposes. <br />If you have any questions about information contained in this <br />report, please feel free to contact me. <br />Sincerely, <br />HAKANSON ANDERSON ASSOCIATES, INC. <br />. Aa, " If. ( /" <- - - - - - " <br />Gary J. thbun, Soil Scientist <br />Enclosures <br />File: 1540.07 <br />