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H <br />#615 Ringer Subdivision <br />Page 4 <br />Lot 2, Block 1 <br />Peres PB21 thru PB26. Borings BB21 thru BB23. <br />for both primary and alternate sites are acceptable. Slopes are <br />nearly level at the tested sites, ranging from 0 to 3%. Mottling <br />indicated below 2', with actual water table at 3.2 to 4.2 . <br />standard mound system should be used due to the presence of shall <br />saturation zones. <br />Lot 3, Block 1 <br />Peres PB31 thru PB26. Borings BB31 thru <br />indicate 1 to 2 ' of loamy topsoil over a 6" J®y®f ^ <br />topsoil over a plastic sandy clay. Actual water table at the <br />liay :hlt1s°pro;;bl”^;ted! "Se secondary Vi?®-® . <br />mottled below 1.5 feet with an actua’ saturated zone at 1 <br />Coupled with a slope of 10% the secondary site is marginal tor a <br />mound system and would require at least 2' of sand base as part <br />of the desian. I suggest that a standa.vdpressure mound system <br />be required^?or bo?h sites with addea sand depth for the secondary <br />system. Please note that this lot is the most tenuous in the <br />subdivision in terms of slope and soils consideration for using <br />a mound system. Should a proposed house location <br />either of the tested sites, careful review and possible additional <br />testina will be needed to ensure that a mound can still be used. <br />Jhe site does not appear capable of supporting any kind of a trench <br />system. <br />Lot 4, Block 1 <br />liiiiliiiilllf <br />must be avoided during construction of the systems. I would <br />recommend a standard pressure mound for both sites. <br />Lot 5s Block 1 <br />Peres PB51 thru PB56. Borings BB51 thru BB53. Slopes are 3% to^ <br />6% overall. Mottling at the primary site started at 2.7 to 3.5 <br />with actual water table at 3.7 to 5.0*. This site is acceptable <br />for a standard mound system. The alternate site has a perc rate <br />considered too slow for any system by code. However, close <br />scrutiny shows that the percs were taken at depth in the sandy <br />clay subsoil, not in the topsoil. In general, throughout the entire <br />subdivision the testing done at a depth of 12", in the topsoil, <br />indicates acceptable percolation rates, with testing at 24" or more <br />indicating slower, marginal perc rates. In my opinion, this site <br />is no different than most of the others, and would have an acceptable <br />perc rate if tested at the 12" depth in the sandy loam topsoil. <br />No further testing should be required; a mound system is recommended. <br />^: <br />Hi <br />11'