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L <br /> LNovember 3,2004 <br /> NOA Project Number: E040119A <br /> �, 6.6 Percolation Test Forms and Results <br /> i The completed percolation test forms are included in the appendix of this report. <br /> A shallow percolation test is defined by the EHD as being between 36 and 42 inches in depth;a <br /> satisfactory percolation rate for a shallow test is less than or equal to 60 minutes per inch drop. One <br /> `, percolation test must demonstrate a satisfactory percolation rate within the proposed septic system <br /> disposal field of each parcel. Details of the percolation tests are summarized in Table 5. <br /> L <br /> Table 5 <br /> Summary of Percolation Tests. <br /> Test No., Percolation Percolation Rate Test Comment <br /> Date Tested Test Depth(ft) (minutes/inch) Duration (see notes) <br /> N-1 shallow, 10-13-04 Shallow ground water, fail <br /> 4 (Parcel 1) 3.15 --- 1-hr t.ess than three feet in depth <br /> L on 10-13-04 <br /> N-2 shallow, 10-13-04 Shallow ground water,fail <br /> (Parcel 2) 3.33 — 1-hr Less than three feet in depth <br /> L. on 10-13-04 <br /> LN-3 shallow,10-13-04 Shallow ground water,fail <br /> (Parcel 3) 3.2 --- 1-hr Less than three feet in depth <br /> on 10-13-04 <br /> N-4 shallow, 10-13-04 Shallow ground water,fail <br /> (Parcel 4) 2.95 --- 1-hr. Less than three feet in depth <br /> on 10-13-04 <br /> Note: A satisfactory percolation rate for a"shallow"test is less than or equal to 60 minutes per inch. <br /> A satisfactory percolation rate for a"deep"test is less than or equal to 30 minutes per inch. <br /> 6.7 Discussion of Percolation Test Results <br /> 6" The soils withmXParcels 1,2, 3, and 4 have not demonstrated a satisfactory percolation rate in <br /> accordance with the requirements of the EHD. The soils of this parcel does not appear the be ` �) <br /> Lsuitable for a standard septic system.Th property is suitable for development with a mounded septic (� <br /> system. <br /> L <br /> 6.8 Discussion of Septic System Sizing <br /> Engineered septic plans for a mounded type septic system are provided to mitigate the shallow / <br /> ground water conditions observed. The engineered septic system plans were stamped by a Ctvil �) <br /> Engineer and may be used for various sized residences should they ever be proposed for the parcels. <br /> 9 <br />