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<br /> RieCEN D
<br /> 4 P '�U i009
<br /> MINNESOTA DEPARTMENT OF LABOR AND INDUSTRY ClTyOFORONO �wv
<br /> Division of Construction Codes and Licensing
<br /> REPORT ON PLANS
<br /> Plans and specifications on plumbing: Orono Elementary and Intermediate School Phase II Renovations, 685
<br /> North Old Crystal Bay Road, Long Hennepin County, Minnesota,Plan No. 096475
<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 /> Plans Dated: Plans and Specifications January 20,2009; Sheet Nos. M113,M114,M116,M125,M127, M201,
<br /> M202,M204,M205,M207,M212,M213,M221 thru M225,M227,M234,M814, and M905 February 4,2009;
<br /> Sheet Nos. M000,M206,and M226 February 10,2009;KFI-PR-M001 April 6,2009
<br /> Date Received: April 8, 2009,March 6, 2009
<br /> Date Reviewed: April 13,2009
<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. Verify that the existing water supply and waste systems are sized to accommodate the added fixtures(see
<br /> Minnesota Rules,part 4715.3700 and part 4715.2310).
<br /> 2. Changes in direction in drainage piping must be made by appropriate use of wyes and bends. Sanitary tees
<br /> are not allowed where the direction of flow changes from either vertical to horizontal or horizontal to
<br /> horizontal(see Minnesota Rules,part 4715.2410).
<br /> 3. The pumped discharge piping from the Area B mechanical room sump basin is shown connecting to a
<br /> horizontal sanitary piping.Verify that the following requirements are met:
<br /> a. Fixture unit values for flow into the drainage system from a pump or sewage ejector shall be computed
<br /> on the basis of one fixture unit for each gallon per minute flow(see Minnesota Rules,part 4715.2300).
<br /> Thus,the existing 4-inch sanitary branch shall be sized to accommodate the additional 40 drainage
<br /> fixture units provided by the sump pump(see Minnesota Rules,part 4715.2310). A maximum of 160
<br /> drainage fixture units are allowed on a 4-inch sanitary branch.
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