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c? <br />TO: <br />FROM <br />DATE <br />Jeanne A. Manbusth/ Building & Zoning Administrator <br />Michael P. Gaffron, Asst. Planning & Zoning Administrator <br />March 13# 1990 <br />Subject: #1503 Woodhill Country Club - <br />Subdivision - Septic Testing <br />I have reviewed the site of the proposed building lot and <br />would make the following comments: <br />1. The testing for septic system drainfield sites provided <br />by S-P Testing indicates the use of a trench drainfield <br />system on 2 terrace levels at the north east corner of this <br />steeply sloped lot. The tested sites provide the capability <br />for as much as 950 lineal feet of drainfield# enough to <br />provide for a primary system and nearly 2 alternate systems <br />for a 5 bedroom home. <br />2. Since these sites are at the high end of the lot# one <br />would expect some under ground drainage following the <br />contours down the hill. With 80% of the lot having slopes <br />greater than 18%, it would be critical to avoid^ placing the <br />house directly downhill from the drainfield sites. <br />Furthermore# it would be advisable to do no grade cuts <br />within 50' downhill from any of the drainfield sites, and <br />within 20* laterally at a level equal to the sites. Because <br />these slopes near the drainfield are so steep# it would <br />seem to be within the authority of the septic code to <br />require these special conditions on site grading. <br />3. To that end# I have sketched on the S P Testing design# <br />a "protected area" in which no structure and no grading or <br />cuts should occur. Based on the preservation of this <br />and the stipulation that no cuts occur# I would recommend <br />approval of the building site# finding that the provisions <br />of the septic code for a buildable site are adequately met.