Re: request for variance to MN Dept of Health

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. _ Mr. Richard Stevens Mr. Wyatt Moe Mr. Alden Hirsch Page 2 November 14, 1997 The variance is granted with the following conditions: 1. The well must be located a minimum of 5 feet from the buried gas pipe. If the well will be between 5 and 10 feet of the gas pipe, the well must be marked with a permanent sign warning of the gas pipe. 2. The well casing must extend to a depth of at least 50 feet. 3. The annular space between the casing and the bore hole wall must be filled with neat-cement grout as defined in Minnesota Rules, part 4725.0100 or high solids bentonite grout that is NSF approved and marketed as a well sealant. H'igh solids bentonite grout must be mixed to the manufacturer's specifications, or must meet the minimum requirements of 15 percent by weight bentonite as specified in Minnesota Rules, Chapter 4725, whichever is heavier. Grout must be inserted through the casing or through a tremie pipe from within 10 feet of the lower termination of the casing to the ground surface or base of the pitless unit or adapter. 4. All new sewers installed on the property between 50 and 20 feet of the well must be constructed of cast-iron or plastic pipe meeting the material specifications and installation methods described in Minnesota Rules, parts 4715.0530 and 4715.2820. The pipe must be successfully air-tested after installation by a licensed plumber, sewer installer if a plumbing license is not required, or in the presence of a local plumbing or zoning official, or 1Vlinnesota Department of Health(1ViDI� representative. The tester must submit written verification that the pipe was successfully tested at a uniform pressure of S lbs per square inch for 15 minutes as required by Minnesota Rules, part 4715.2820(Plumbing Code). Installation of the sewer must also meet the requirements of the city of Orono. 5. You must contact Mr. Stevens at 612/215-0830 or Mr. Ronald Thompson at 612/215-0831 at least 24 hours prior to starting well construction so that an inspector may be present during the construction of this well. 6. All other provisions of Minnesota Rules, Chapter 4725, shall be in effect. Alternative measures or conditions attached to a variance have the force of rule and effect of applicable rule. If the party violates the alternative measures or conditions attached to the variance, the party is subject to enforcement actions and penalties provided in the applicable law rule. This variance is conditioned upon the applicable acceptance of and compliance with the conditions of the variance. Failure by the applicant to comply with the conditions prescribed in the variance will result in the immediate expiration of the variance.