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EXHIBIT P <br />•y,~ ■'"■""aiHH^T ' '■ <br />Jeanne A. Mabusth, Building & Zoning Administrator <br />Stephen Weckman, On-Site Systems Manager <br />mm-DATE:March 12, 1992 <br />SUBJECT: #1721 Albert D. Hanser - Subdivision - Septic Review <br />Soil testing has been completed and a report submitted to the City for <br />review. A five lot subdivision is proposed, including one existing <br />residence and four new building sites. I would make the following <br />comments: <br />Lot 1 <br />• > -* ■ <br />Both the main residence and guest house have existing septic <br />systems which appear to be functioning adequately. <br />Slope at the tested sites 0-4%. <br />Percolation rates avu -^ge 8.1 mpi at 16' depth. <br />Depth to seasonal satuiition (mottling) is 2.3-2.5'. <br />Due to shallow seasonal saturation, both sites require mound <br />drainfields. <br />Topographic location and site drainage is adequate. <br />All setbacks meet Code. <br />m-m <br />.r.v. •■■j <br />Lot 3 <br />Slope at the tested sites 0-4%, <br />Percolation rates average 8.8 mpi at 16" depth. <br />Depth to season saturation (mottling) is 2.5-2.8'. <br />Due vr> shallow seasonal saturation, both sites required <br />mound drainfields. <br />Topographic location and site drainage is adequate. <br />All setbacks meet Code. <br />Slope at the tested sites averages 3-9%. <br />Percolation rates average 10.6 mpi and 2.3 mpi at 16" dep'^h <br />for the primary and alternate drainfield sites respectively. <br />Depth to seasonal saturation (mottling) is 1.7' in the <br />primary site, but not observed in the alternate sil,e. <br />Both sites are acceptable mound sites, however the alternate <br />site may allow a standard trench upon further testing. <br />Topography and drainage is adequate. <br />All setbacks meet Code. <br />.V,.