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CONCLUSIONS <br /> The shallow depth percolation test result indicates acceptable percolation and should manage <br /> effluent flow volumes for a considerable time. The medium depth perc test result was above the <br /> allowable rate of 30 min/in, but only by 5.7 min/in. The 25-ft test boring was 2.7x above the <br /> passing rate. These perc rates all indicate a reasonably long lifespan for the OWTS, provided <br /> effluent flow volumes and characteristics are reasonable and typical. Ample area exists on the <br /> subject property for a 100%replacement area. <br /> Taking the acceptance rate obtained for the shallow perc test, the OWTS to be installed can manage: <br /> 0.614 gals/ft2/day x 1,020 ft2 (infiltration area of the 3 - 85 ft leachlines) =626 gpd. <br /> In 1999, the depth to groundwater was,measured at 70 ft bgs. This can be considered the highest <br /> anticipated depth to groundwater. In the Fall of 2016, the depth to groundwater was measured at <br /> approximately 95 ft bgs. <br /> If there should be any questions regarding the information contained in this document, please <br /> contact the undersigned. <br /> Respectfully submitted, 4Cofess;o <br /> CHESNEY CONSULTING y��4o�D Chesp�� <br /> No,7.5479 <br /> Don Chesney, PE fd�e o f alV i <br /> C <br /> Registered Civil Engier#C75479 <br /> ATTACHMENTS <br /> APN and District Viewer Maps Denoting Project Location <br /> Perc Test Locations and EHD Percolation Test Rate Forms with Field Data <br /> Groundwater Maps: 1999 and 2016 Lines of Equal Depth <br /> Page 3 of 3 <br /> Chesney Consulting <br />