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� �7-P TEST/NG� INC• Steven B. Schirmers • MPCA Cert.No. 627 <br /> 951 Katydid Lane NE • St. Michael, MN 55376 • (763) 497-3566 <br /> � FAX (763) 497-5011 <br /> State License #394 <br /> ����_. <br /> C�\Z �`�� - SS/� <br /> September 9, 2005 <br /> Vintage Builders <br /> 175 Golden View Dr. <br /> Orono, Henn. Co., MN <br /> A Compliance Inspection was completed for the existing mound system located on this <br /> property. The mound is for a 3 bedroom home & two bedrooms are being added. Soil <br /> borings #1 & 3 found mottled soil (redox features) at 16" in boring #3 at the north end & <br /> 18" at boring #1, the south end. With the bottom of the rock at elev. 101.2, .9' of sand <br /> was found at the south end & 1.9' of sand was found at the north end of the mound. <br /> With mottled soil at 18" at the south end of the mound, 1.5' of sand would be needed to <br /> meet the required 3' separation from the bottom of the rock &the mottled soil. The <br /> system is classified as non-compliant. <br /> To bring the system into compliance the existing 10'x40' rock bed 8� a minimum of 6" of <br /> sand wi�l need to be removed & the topsoil on the south end be removed to the clean <br /> sand. Replace the sand & add to the south end as shown in the design. <br /> The existing tanks are 3-1000 gallon tanks are acceptable to the City Inspector. The <br /> tanks must be water tight. <br /> The existing pump may be used if it meet the requirement for 20' of head pressure & 47 <br /> gal/min. <br /> All neighboring wells are located greater than 100' away from the proposed treatment <br /> area. <br /> ���� . ' <br /> Steven B. Schirmers <br /> 1 <br />