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, t <br /> Orville Dressel <br /> 2740 Fox Street <br /> Orono, lienn. Co. , MN <br /> (2) <br /> A pumping chamber will need to be installed to lift the effluent to the <br /> treatment area. <br /> The power supply and switches must be located outside the manhole and <br /> pumping chamber in a weather proo£ enclosure . A warning device must be <br /> installed with a light and sound device, this is in case of a pump failure. <br /> (Mercury floats are a qood method) . The supply line pipe must have <br /> back drainage to the pumping chamber. <br /> The percolation tests were completed 12" into the original soil & <br /> in the fill soil . The average percolation rate is 8 . 6 and is adequate <br /> for treating septic effluent. <br /> All neighboring wells are located greater than 75 ' away from the <br /> proposed treatment area . <br /> Keep all heavy equipment off of the proposed treatment area before and <br /> after construction. The treatment ar�a should be m�irked off before <br /> construction. This Design is not v�ilid & the System will need to <br /> be relocated if failure to protect the areas proposed for On-Site <br /> Sewage Treatment occurs . <br /> Nothing other than gray water, ( laundry, showers , etc . ) human <br /> waste & toilet tissue should be disposed of into the septic tanks . <br /> Garbage disposals are not recommended. Additives must not be used, <br /> they may cause harmful damage to your septic system. Recommend <br /> to pump your tank every year if you have 1 tank & every 2 years <br /> if there are 2 tanks . <br /> . � � <br /> Steven B. Schirmers fJ S <br /> SBS/ds <br />