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HomeMy WebLinkAboutHOLLY HILL Block 1 Lots 10, 11 & 12ly Hi IS L I0, L,I S tt & ENGINEERS, INC. i[l' S 1125 OLD SEWARD HIGHWAY ,, ANCHORAGE, ALASKA 99502 March 26, 1984 Department o[ Health and Environmental Protection $2~'L' Street Anchorage~ Ak Re: McArthur Park Subdivision Gentlemen: At the request of Mr. Norm Hudec with the Municipality Public Works Department, we are requesting DHEP approval for the proposed grading plan for McArthur Park Subdivision. Mr. Hudec has expressed concerns regarding the proximity of existing septic systems to the proposed cut slope on the east boundary of McArthur Park Subdivision. The three lots which could be impacted are Lots 10, 11, & 12 of Block I, Holly Hills Subdivision. As you can see by examination o~ the attached plan view and cross section drawings, there appears to be no chance of effluent daylighting on the proposed cut slope.. Please take under consideration the following information: I. Cut slopes will start at 10' from the property line at lots~'~ 10 and 11 and 20' for lot 12 and will be at 3:1 slope. 2. Soils are 5P and GW which will optimize downward rather than lateral flow of wastewater from the septic system trenches. Due to increasing numbers of new residences in the area~ it is likely that the existing septic systems in Holly Hills Subdivision will be replaced by Municipal sewer in the near future. Subdivisions on both sides of Holly Hills have existing or planned public sewer systems. WASILLA ANCHORAGE - SOLDOTNA McArthur Park Subdivision Page 2 Please indicate your approval of the grading plans in the space provided below so that we may expedite the approval process for this subdivision. Should you have any questions, please do not hesitate to contact us at 3#9-6561. Very truly yours, David A. Stanley Geotechnical Manager Approved for Department of Health and Environmental Protection by: Comments: DAS:wel 9A Job 40002 / -/ /