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443 Lafayette Road N. MINNESOTA DEPARTMENT OF (651) 284-5005 <br /> St. Paul, Minnesota 55155 LABOR & INDUSTRY TTY: 1-800-DIAL-DLI <br /> www.dli.mn.gov 655 1 297-4198 <br /> August 5, 2011 <br /> RECE/VE0 <br /> Associated Mechanical Contractors Inc. AUG 1 2011 <br /> 1257 Marschall Road 0/71• <br /> Shakopee, MN 55379 0F1/44R0A1 <br /> Gentlemen/Ladies: <br /> Subject: REQUEST FOR ADDITIONAL INFORMATION regarding plumbing at Orono Senior Housing, <br /> Highway 12 &Luce Line Trail, Orono, Hennepin County, Minnesota, Plan No. PLB 1106-00212 <br /> We are NOT able to grant approval at this time of the plans and specifications submitted for the above- <br /> designated project. The following comment(s) outline the changes and/or additional information that must be <br /> submitted so that we can further evaluate the plans and specifications for compliance with the standards of this <br /> department: <br /> 1. Sheet C4.1 appears to indicate utility easement lines around the watermain, forcemain sewer, and lift <br /> station within the property lines. Please indicate whether these utilities are located within a permanent <br /> easement where all utilities within the easement are permanently owned and maintained by the city of <br /> Orono. If so,please provide documentation from the city of Orono stating this is correct. If the utilities <br /> within the easement lines will not be permanently owned and maintained by the city,they are subject to the <br /> Minnesota Plumbing Code. The following information is then required: <br /> a. The plans indicate polyethylene pipe for the watermain and the forcemain sewer, but do not indicate the <br /> construction standard of the pipe. The plan must be revised to include the pipe construction standards, <br /> joining method, and the installation standard to be used for directional boring. <br /> b. If the pipe materials are not listed as approved materials in the Minnesota Plumbing Code for the <br /> intended purpose, alternate material approval must be obtained from the city of Orono before the plans <br /> will be approved by this office. The project owner must make a written request to the city for the <br /> alternate materials and installation method. The pipe construction standards and installation standard <br /> must be clearly identified in the request. The owner must acknowledge that the materials and <br /> installation method are not approved in the Minnesota Plumbing Code. <br /> c. If the city of Orono approves the alternate materials and installation method, a copy of the local <br /> approval must be submitted to this office. <br /> 2. Using Minnesota Rules, part 4715.2310: <br /> a. The 4-inch building drain branch must be at least 5 inches in size at the branch connection serving the <br /> bathroom in Room No. 140 on Sheet P 1. <br /> b. The 4-inch building drain branch must be at least 5 inches in size at the branch connection serving the <br /> bathroom in Room No. 137 on Sheet P 1. <br /> c. The 6-inch building drain branch must be at least 8 inches in size at the branch connection serving the <br /> bathroom in Room No. 157 on Sheet P2. <br /> d. The 3-inch drain branch in Room No. 139 on Sheet P1 may not serve more than two water closets. <br /> Please revise the plans to show the necessary changes. <br /> This information can be provided to you in alternative formats(Braille, large print or audio). <br /> An Equal Opportunity Employer <br />