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MINNESOTA DEPARTMENT OF LABOR AND INDUSTRY Division of Construction Codes and Licensing REPORT ON PLANS Plans and specifications on plumbing: Crystal Bay Business Center II, 725 Wayzata Boulevard,Orono, Hennepin County,Minnesota,Plan No. 087584 OWNERSHIP: SUBMITTER(S): Voson Plumbing, Inc., 1515-A Fifth Street South,Hopkins,Minnesota 55343 Plans Dated: June 3,2008 Date Received: June 18,2008,June 3,2008 Date Reviewed: June 19,2008 SCOPE: This review is limited to the design of this particular project only insofar as the provisions of the Minnesota Plumbing Code, as amended,apply,and does not cover the water supply or sewerage system to which this plumbing system is connected. The review is based upon the supposition that the data on which the design is based are correct,and that necessary legal authority has been obtained to construct the project. The responsibility for the design of structural features and the efficiency of equipment must be taken by the project designer. Approval is contingent upon satisfactory disposition of any requirements included in this report. Special care should be taken to insure that the material and installation of the plumbing system are in accordance with the provisions of the Minnesota Plumbing Code. A copy of the approved plans and specifications should be retained at the project location for future reference. A set of the identified plans and specifications is being returned to Voson Plumbing,Inc. Enclosed is a copy of the report and transmittal letter to be forwarded to the project owner. INSPECTIONS: All plumbing installations must be tested and inspected in accordance with the requirements of the Minnesota Plumbing Code. As specified in Minnesota Rules,part 4715.2830,no plumbing work may be covered prior to completing the required tests and inspections. Provisions must be made for applying an air test at the time of the roughing-in inspection as outlined in Minnesota Rules,part 4715.2820, subpart 2,of the code. A manometer test,as specified in Minnesota Rules,part 4715.2820, subpart 3,is required at the time of the finished plumbing inspection. It is the responsibility of the contractor/installer to notify the Minnesota Department of Labor and Industry when an installation for a state contract job,licensed facility,or project in an area where there is no local administrative authority is ready for an inspection and test. To schedule inspections, contact the state plumbing standards representative for your region,or call Jim Peterson at 651/284-5889. REQUIREMENT(S): 1. Item No. 3-4 of your June 18, 2008,letter shows that you put a 3-inch full-size vent on the flammable waste interceptor. Please note,the vent on the flammable waste interceptor may not be used to satisfy Items Nos. 3 and 4 of my June 13,2008,request for additional information. a. The flammable waste interceptor outlet is more than 25 feet from a vented drain. Therefore,the discharge line must be provided with a 2-inch minimum vent pipe installed within 25 feet of the interceptor(see Minnesota Rules,part 4715.1120). This vent must not connect with the vent serving the flammable waste interceptor. b. The submitted plans do not appear to show a full-size vent stack.A full-size vent stack(3-inch minimum)must be provided for every building(see Minnesota Rules,part 4715.2520,subpart 1). This stack must be continuous in size from its base to its terminal and should be the most remote stack from the location where the building drain leaves the building. The 3-inch stack on the flammable waste interceptor may not be this stack. Verify that a code complying plumbing system will be installed.