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MINNESOTA DEPARTMENT OF LABOR AND INDUSTRY
Division of Construction Codes and Licensing
REPORT ON PLANS
Plans and specifications on plumbing: Columbia Heights Municipal Service Center Renovation, 38th Avenue
and Madison Place, Columbia Heights, Anoka County, Minnesota, Plan No. 060714
OWNERSHIP:
City of Columbia Heights, c/o Mr. William Elrite, Clerk, Columbia Heights City Hall, 590
40th Avenue Northeast, Columbia Heights, Minnesota 55421-3878
SUBMITTER(S): Buetow & Associates, Inc., 2345 Rice Street, Suite 210, Roseville, Minnesota 55113
Plans Dated: August 18,2005; Addenda Nos. 1 and 2
Date Received: September 7, 2005, August 22,2005
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Date Reviewed: November 3,2005
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 ofthe 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.
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. All plumbing shall be installed in accordance with the Minnesota Plumbing Code (see Minnesota Rules,
part 4715.0320).
2. The outlet of the trench drain/sand trap in the wash bay area must be constructed without a trap seal (see
attached handout).
3. The vent to serve the flammable waste interceptor must be constructed of an approved metallic material.
4. A cleanout must be provided at or near the base of each stack (see Minnesota Rules, part 4715.1000).
5. It is recommended that a cleanout be provided where new waste and vent piping connects with existing
plumbing to facilitate required testing of the new installation.
6. The vent serving a water closet must be at least 2-inches in size (see Minnesota Rules, part 4715.2520,
subpart 5). A llt2-inch vent is shown serving a water closet on the submitted waste and vent riser diagram.
Columbia Heights Municipal Service Center Renovation
Plumbing
Plan No. 060714
Page 2
November 3, 2005
7. 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).
8. The installation of reduced pressure zone backflow preventers is permitted only when periodic testing is
done by a trained backflow preventer tester acceptable to the administrative authority. Testing intervals
shall not exceed one year, and records must be kept. All devices must be tested after initial installation to
assure that debris from the piping installation has not interfered with the functioning of the device. The
devices shall be overhauled at least once every five years. The installation of new backflow preventers must
be at least 12 inches, but not more than 6 feet above the finished floor or ground level.
9. Solvent weld joints in PVC and CPVC pipe must include use ofa primer which is of contrasting color to the
pipe and cement (see Minnesota Rules, part 4715.0810, subpart 2).
NOTE(S):
1. The scop~ of this proj ect consists of the remodeling of an existing building. The plumbing installation
includes water closets, a urinal, lavatories, showers, a wash fountain, an electric water cooler, mop sinks,
counter sinks, trench drain/sand trap, a flammable waste interceptor, an elevator pit drain and sump, a
draintile sump, floor drains, a standpipe, and a pressure washer.
2. This facility is served by existing municipal water and sewer service connections.
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: s:(
~iiCkson
Public Health Engineer
Plumbing and Engineering Unit
443 Lafayette Road North
St. Paul, Minnesota 55155-4343
651/284-5881
CAE:sas
Enclosure
cc: Buetow & Associates, Inc. ~
City of Columbia Heights ,
Mr. Mel Collova, Building Inspector
File