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HomeMy WebLinkAbout2010 - MN Dept. of Labor & Industry - report on plans 443 Lafayette Road N. MINNESOTA DEPARTMENT OF (651)284-5005 St. Paul, Minnesota 55155 1-800-DIAL-DLI www.doli.state.mn.us LABOR IItiIDUSTRY TTY: 51)297-4198 MINNESOTA DEPARTMENT OF LABOR AND INDUSTRY Division of Construction Codes and Licensing MA4) �0 REPORT ON PLANS Co), a 7, Plans and specifications on plumbing: Harvest Moon Co-op Remodel, 2380 West Wayzata Boulevard, Yi Hennepin County,Minnesota, Plan No. 101321 Vitt) OWNERSHIP: SUBMITTER(S): RM Mechanical, 2534 Eastwood Avneue SE,Buffalo,Minnesota 55313 Plans Dated: Sheet No.M1 March 19, 2010 Date Received: March 19, 2010 Date Reviewed: March 25, 2010 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. 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 Depaitment 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. Verify that the existing water supply and waste systems are sized to accommodate the added fixtures (see Minnesota Rules, part 4715.3700 and part 4715.2310). Please note that the co-op adds 108 drainage fixture units to the existing 4-inch sanitary piping and a maximum of 160 drainage fixture units can be served by a 4-inch sanitary branch. 2. Changes in direction in drainage piping must be made by appropriate use of wyes and bends. Sanitary tees are not allowed where the direction of flow changes from either vertical to horizontal or horizontal to horizontal (see Minnesota Rules,part 4715.2410). 3. The minimum size for underground waste pipe shall be 2 inches in diameter(see Minnesota Rules, part 4715.2350). This information can be provided to you in alternative formats(Braille,large print or audio). An Equal Opportunity Employer Harvest Moon Co-op Remodel Plumbing Plan No. 101321 Page 2 March 25, 2010 4. Double wyes may not be used for drainage fittings in the horizontal position (see Minnesota Rules, part 4715.2420, subpart 3). Proper pipe slope cannot be maintained on both of the offset branches. Verify that a double wye fitting in the horizontal position is not used for the sanitary branches serving the floor drains near the Food Bar. 5. Vent connections serving floor drains, floor sinks, and trench drains must be taken off above the centerline of the pipe and must rise vertically, or within 45 degrees of the vertical, to a point at least 6 inches above the floor before offsetting horizontally(see Minnesota Rules,part 4715.2540, subpart 2). Verify that code compliant vents are provided for the vented floor drain in the produce section and for the vented floor drain near the Food Bar. Refer to the enclosed Venting of Floor Drains handout for additional information. 6. Floor drains which receive substantial amounts of liquid waste must be individually vented in accordance with Minnesota Rules,part 4715.2620 and part 4715.1300, subpart 4. 7. Cleanouts shall be of the same nominal size as the pipes they serve up to 4 inches in size(see Minnesota Rules,part 4715.1010). A cleanout must be installed where there is an increase in pipe size from 2 inches to 3 inches and from 3 inches to 4 inches. 8. Each horizontal drain branch, including floor drain branches, shall be provided with a cleanout at its upper terminal with the following exceptions (see Minnesota Rules,part 4715.1000): a. A fixture trap or a fixture with an integral trap,readily removable without disturbing concealed piping, may be accepted as a cleanout equivalent for this purpose. b. A floor drain cleanout may be omitted if the floor drain or fixture branch line is less than 5 feet in length. c. Floor drains used for shower drains,recessed slop, or similar receptors may have the full-sized cleanout installed on the individual vent pipe serving the fixture or on the fixture. 9. All pot, scullery, food prep, and bar sinks must be provided with a floor drain on the individual drainage branch serving each sink.This floor drain, or tell-tale drain,must not be equipped with a backwater valve (see Minnesota Rules,part 4715.1390, subpart 2). Verify that a tell-tale drain is provided for the two-compartment sink in the Produce Prep Room. 10. A single 2-inch trap and waste may serve the three-compartment sink if the trap is located not more than 30 inches from each compartment outlet(see Minnesota Rules,part 4715.0900). Locating the trap beneath the center compartment will meet this requirement in most instances. Pot or scullery sinks must be provided with waste outlets not less than 2 inches in diameter(see Minnesota Rules,part 4715.1390, subpart 1). 11. Water closets in public bathrooms must have elongated bowls with open-front seats, except round bowls with closed-front seats may be used in residential or dwelling-type occupancies(see Minnesota Rules, part 4715.1420). The maximum water volume per flush of a floor-mounted water closet shall be 1.6 gallons. Water closets shall comply with American National Standards Institute A112.19.6 (see Minnesota Statutes, Section 326B.43, subd.4). 12. In all buildings other than dwellings, shutoff valves shall be installed which permit the water supply to all equipment in each separate room or to each individual fixture to be shut off without interference with the water supply to any other room or portion of the building(see Minnesota Rules,part 4715.1800, subpart 6). Harvest Moon Co-op Remodel Plumbing Plan No. 101321 Page 3 March 25, 2010 13. Several capped and valved cold water pipes will be provided,without backflow preventers, for future connections to coffee makers or other equipment. Please note that when the equipment is provided,water supply connections to fixtures or equipment which have submerged inlets, or inlets below the spill line of the fixture or equipment, must be provided with an air gap arrangement, approved backflow preventer or backflow preventer assembly as specified in Minnesota Rules,part 4715.2000 and part 4715.2010. 14. Materials used for the plumbing system shall comply with the standards set forth in the Minnesota Plumbing Code(see Minnesota Rules,part 4715.0420). Verify that the following pipe material requirements are met: a. The installation of the chlorinated polyvinyl chloride (CPVC)water distribution pipe must be in accordance with International Association of Plumbing and Mechanical Officials (IAPMO) Installation Standards 20-98 (see Minnesota Rules,part 4715.0520). b. The hubless cast iron pipe used for the drain,waste,and vent piping must comply with ASTM Standard A888 or CISPI 301-05 (see Minnesota Rules,part 4715.0570 through part 4715.0600). c. ABS plastic pipe used for the drain,waste, and vent system shall comply with ASTM Standard D2661 or F628 (see Minnesota Rules,part 4715.0570 through part 4715.0600). ASTM Standard D2551 is not listed as an approved pipe material for drain,waste, and vent piping and must not be used. d. Plastic pipe must be installed in accordance with Minnesota Rules,part 4715.0580(F) and part 4715.0600. Above-grade horizontal runs of plastic waste and vent pipe cannot exceed 35 feet in total length. Above-grade vertical stacks constructed of plastic pipe may exceed 35 feet in total height only if an approved expansion joint is used. 15. The installation of cross-link polyethylene (PEX)tubing was specified for the water distribution system. If all of the following requirements cannot be met, a different material that complies with Minnesota Rules, part 4715.0520 must be used: a. The tubing system must comply with ASTM Standard F877 and F876. b. When installed as a system in accordance with ASTM Standard F877,the system tubing and fittings must be of the same manufacturer. c. When other fittings are used with ASTM Standard F877 and F876 tubing,the fittings must comply and be marked with ASTM Standard F1807,F1960, F2080,F2098-01, or F2159. In addition, the tubing must be marked to indicate the fitting standard and the corresponding tubing standard(e.g. ASTM F877/F876/F 1960, F877/F876/F 1807, etc.). d. The system must be installed by a factory trained installer of the particular PEX system to be installed. Certain manufacturers require installation by licensed plumbers who have been trained to install their material. e. All persons installing PEX materials shall have a card on their possession documenting completion of training by the manufacturer or his agent for the material to be installed. f. The tubing and fittings must be marked as required by the applicable standard specification and with the appropriate ASTM designations by the manufacturer. g. The installation must be in accordance with the manufacturer's installation instructions. Harvest Moon Co-op Remodel Plumbing Plan No. 101321 Page 4 March 25, 2010 NOTE(S): 1. The scope of this project consists of the remodel of a grocery store. The plumbing includes the following: a. Two restrooms and a break room sink. b. Produce -A prep sink, a floor drain, a trench drain, and a hand sink.A capped and valved 1/2-inch cold water pipe will be provided for future connection to a filter or other equipment.No backflow protection will be provided on the pipe at this time. c. Meat-A three-compaltinent sink, a tell-tale floor drain, a trench drain, and a hand sink. d. Kitchen-A prep sink, a three-compartment sink,three tell-tale drains, a trench drain, two floor drains, a dishwasher, and two hand sinks.A capped and valved 1/2-inch cold water pipe will be provided for future connection to a coffee maker.No backflow protection will be provided on the pipe at this time. e. Dairy-A floor drain and a trench drain outside of the dairy cooler. f. Service/Deli -A hand sink and a capped and valved 1/2-inch cold water pipe will be provided for future connection to a coffee maker.No backflow protection will be provided on the pipe at this time. g. Janitor-A mop sink, a floor drain, and a water heater. h. Multiple floor drains will be provided to receive condensate from refrigerated equipment. The fixtures connect to the existing water distribution system and to the existing waste and vent piping. 2. This facility is served by existing municipal sewer and water services. 3. Complete plans and specifications must be submitted to and approved by the Minnesota Department of Agriculture. Contact the Dairy, Food,Feed&Meat Inspection Division at 651/201-6027 regarding information necessary for their plan review and licensing requirements. Authorization for construction in accordance with the approved plans may be withdrawn if construction is not undertaken within a period of two years. The fact that the plans have been approved does not necessarily mean that recommendations or requirements for change will not be made at some later time when changed conditions, additional information, or advanced knowledge make improvements necessary. Approved: Scott A. Sa er,P.E. Public Health Engineer Plumbing Plan Review and Inspections Unit 443 Lafayette Road North St. Paul, Minnesota 55155-4343 651/284-5803 SAS:sas cc: Mr. Lyle Oman, Building Official Depai tment of Agriculture Food Inspection Division File