Agenda - 09-02-1986 - Laserfiche WebLink

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• ERS, Inc. April 7, 1986 Page 2 05 1 • suitable soil properties 'for low pressure pipe systems. An of the lots evaluated will require that the nitrification lines be placed at a depth of less than 36 inches due to the moderate soil depth to rock or saprol ite. Placement of the nitrification field piping at a depth of. approximately 18 inches from the soil surface will take advantage of the loamy textures generally encountered at this depth at the site. Since most of th nitrification fields are located up slope from the proposed dwellings, these systems will require a pump and pump tank in addition to the septic tank and nitrification field piping. Due - to the shallow placement and the pump requirements, low pressure pipe systems are the type of on—site system Law Engineering recommends for the project. In addition, we recommend the use of water conservation toilets at each _ proposed home—site. These toilets substantially reduce - _ the amount of water to be treated by the system. The toilets generally work using a small air compressor and usually flush approximately one gallon of water per flush cycle. Conventional toilets flush about five gallons of water per cycle. We appreciate the opportunity to provide these services for your project. If you have questions or if we can be of further assistance, please contact us. • Very truly yours, . LAW ENGINEERING TESTING COMPANY - Fred D. Smith . • Soil Scientist lan Tice, P. E. - : '- -• Senior Geotechnical Engineer •;- Registered, North Carolina .6428 •' •FDS/JAT/sar ; i t • • _.. .«,_ _ ._._..__. .�.. .._..... ......« .�.---•.�...._.....�.....�� ---- .W.� .w..,.�.._...,�...-_.._._. _ Raw gMery=_e++inc