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'-i <br />[612) 881-3344 <br />: 22, 1977 <br />f e-17 <br />Tests <br />rtn Lane <br />s have been <br />ty, and ground- <br />stem on the <br />>n the attached <br />Surface elev- <br />corner of the <br />and auger <br />e with the <br />The boring <br />ence of <br />in accordance <br />nt of Health, <br />lowed to <br />on the attached <br />n the boring. <br />•ptivities in <br />A <br />Jn- <br />V' ^ • Til Jjwi' 1 <br />hi <br />Mr. Engner Johnson <br />Page 2 <br />August 22, 1977 <br />■ O <br />1 <br />Test No. <br />Surface <br />Elevation Hole Depth Soil at Test Depth Rate, mpi <br />P-1 <br />P-2 <br />P-3 <br />P-4 <br />97.7 <br />97.3 <br />97.0 <br />95.5 <br />Sandy Clay Loam <br />Loamy Sand <br />Sandy Loam <br />Loamy Sand <br />Recommendations <br />Based on the results of the soil boring and percolation tests, it <br />is my opinion that the soil and water conditions on this site are suit­ <br />able for the installation of an individual sewer system with a drain- <br />field as the soil absorption unit. It is suggested that the drainfield <br />be designed using the average percolation rate of 5.6 mpi. <br />For the planned three>^^mif house, the recommended drainfield <br />absorption area should b^Wsquare feet. We recommend that two septic <br />tanks be used. The first slTould have a capacity of gallons (min­ <br />imum) and the second should have a capacity of fromQSO^to 1,000 <br />gallons. The attached figure shows schematically thel^drainfield layout. <br />Remarks <br />Of necessity, the area of the boring in relation to the area of <br />the site and the depth of the boring is limited. Recommendations of <br />this report are opinions based on the data from the percolation tests <br />and the boring. <br />If I can be of further assistance, please contact me at your <br />convenience. <br />I hereby certify that this report was <br />prepared by me and that I am a duly <br />Registered Professional Engineer under <br />the laws of the State of Minnesota. <br />Gerald M. Sunde <br />Date: August 22, 1977 Reg. No. 8734 <br />GMS:skw <br />^ ■ <br />n. <br />S <br />Cert: <br />3 <br />dfi ri * <br />> 'i< <br />« ^ <br />ro' <br />a ' <br />of <br />of <br />to. <br />Iv^n. <br />(P) ■ <br />Rant;' <br />Corin' <br />line <br />line <br />suld <br />A <br />nont <br />3 col' <br />Date <br />o <br />A-