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To: <br />From: <br />Date: <br />Subject: <br />Jeanne A. Mabusth, Building and Zoning Administrator <br />Stephen Weckman, On-Site Systems Manager <br />September 20, 1993 <br />#1862 Three Star Trucking - Septic Review <br />I have reviewed the proposed septic system testing and des.gn for this property and would <br />make the following comments. <br />T.ots 1 and 2 <br />Site evaluation completed in 1991 was approved for a proposed 2 lot subdivision. BoA <br />sites were tested for three-bedroom homes, but topographic information provided as part of this <br />subdivision indicates that five-bedroom sites are feasible. <br />Lot 3 <br />This site was tested in August of 1993 which indicated suitable area for primary and <br />alternate drainfield sites. The percolation tests averaged approximately 40 minutes pei inch and <br />are within acceptable limits. Site inspection, however, revealed that this site had been driven <br />over considerably by heavy traffic leaving ruts from 3-12" deep across the drainfield sites. One <br />or both of these sites may need to be relocated in order to avoid compacted soils. Additional <br />percolation tests will be required to determine whether the existing sites are still suitable for <br />sewage treatment. <br />I^ts 4. S. 6 and 7 <br />These four lots all have both primary and alternate drainfield sites located on slopes less <br />than 6% with suitable percolation rates and meet required setback distances. <br />Lot 8 <br />This lot contains an existing residence with a septic system. City code requires that an <br />r*temate drainfield site be located on this parcel for future use. <br />Summary <br />Suitable soil testing information has been provided for Lots 1, 2, 4, 5, 6 and 7. Further <br />information is required regarding the compaction of Lot 3 and the identification of an alternate <br />site for Lot 8. Based on the above information, I would recommend tabling the application unti <br />the additional soil testing information can be provided.