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�`��� DECEIVED
<br /> i a. JUN 19 2009
<br /> .1_1v MINNESOTA DEPARTMENT OF LABOR AND INDUSTRY
<br /> QRQNQ Division of Construction Codes and Licensing
<br /> C,\ QF REPORT ON PLANS
<br /> Plans and specifications on plumbing: Orono High School Phase II Renovations, 795 North Old Crystal Bay
<br /> Road,Long Lake,Hennepin County,Minnesota,Plan No. 096474
<br /> OWNERSHIP: Independent School District No. 278, c/o Ms. Karen Orcutt, Superintendent,P.O. Box 46,
<br /> Long Lake,Minnesota 55356-0046
<br /> SUBMITTER(S): Karges-Faulconbridge,Inc., 670 West County Road B, St. Paul,Minnesota 55113-4527
<br /> Mr.Lyle Oman, Building Official,Orono City Hall, P.O.Box 66,Orono,Minnesota 55323-
<br /> 0066
<br /> Plans Dated: February 9,2009,and June 9, 2009
<br /> Date Received: June 11,2009,June 9, 2009, June 8,2009,May 27, 2009,May 26,2009,March 6, 2009
<br /> Date Reviewed: June 15, 2009
<br /> SCOPE: This review is limited to the design of this particular project only insofar as the provisions of the
<br /> Minnesota Plumbing Code, as amended,apply,and does not cover the water supply or sewerage system to which
<br /> this plumbing system is connected. The review is based upon the supposition that the data on which the design is
<br /> based are correct,and that necessary legal authority has been obtained to construct the project. The
<br /> responsibility for the design of structural features and the efficiency of equipment must be taken by the project
<br /> designer. Approval is contingent upon satisfactory disposition of any requirements included in this report.
<br /> Special care should be taken to insure that the material and installation of the plumbing system are in accordance
<br /> with the provisions of the Minnesota Plumbing Code. A copy of the approved plans and specifications should
<br /> be retained at the project location for future reference.
<br /> INSPECTIONS: All plumbing installations must be tested and inspected in accordance with the requirements of
<br /> the Minnesota Plumbing Code. As specified in Minnesota Rules,part 4715.2830,no plumbing work may be
<br /> covered prior to completing the required tests and inspections. Provisions must be made for applying an air test
<br /> at the time of the roughing-in inspection as outlined in Minnesota Rules,part 4715.2820, subpart 2, of the code.
<br /> A manometer test,as specified in Minnesota Rules,part 4715.2820, subpart 3, is required at the time of the
<br /> finished plumbing inspection. It is the responsibility of the contractor/installer to notify the Minnesota
<br /> Department of Labor and Industry when an installation for a state contract job, licensed facility,or project in an
<br /> area where there is no local administrative authority is ready for an inspection and test. To schedule inspections,
<br /> contact the state plumbing standards representative for your region,or call Jim Peterson at 651/284-5889.
<br /> REQUIREMENT(S):
<br /> 1. The island vent is correctly shown on Detail No. 3, Sheet No. 805. However,the drain, waste,and vent riser
<br /> diagrams,Details No. 1 and No. 5, Sheet No.M412,do not show a code complying island vent for the lab
<br /> sinks. The riser diagram appears to show the island vent connecting to the horizontal drain upstream of the
<br /> vertical fixture drain,rather than through a wye branch fitting downstream from the vertical fixture drain as
<br /> required(see Minnesota Rules,part 4715.2655). Verify that a code complying plumbing system will be
<br /> installed.
<br /> 2. At that point where the sanitary waste from the three 2-inch floor drains(FD-3)and one of the two art room
<br /> sinks(S-5), located in Room No. C016,connects to the drainage system on Sheet No.M101,there appears
<br /> to be 8 drainage fixture units(d.f.u.) and they are shown discharging through a 2-inch pipe. Since a 2-inch
<br /> horizontal drain can only accommodate 6 fixture units at a slope of per foot,this portion of the
<br /> system is undersized(see Minnesota Rules,part 4715.2310, subpart 2). The plans appear to show the
<br /> increase to 3-inch waste only after the second art room sink is connected, at 10 d.f.u. Verify that a code
<br /> complying plumbing system will be installed.
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