Correspondence •y
Date: 01/31/12 Preliminary Medical Gas Plan Review
RE: PACIFIC Dental Services
Applicant
Pacific Dental Services
2044 California Ave
Corona, CA 92881
Attn: Julie Margetich
951 - 582 -5745 / 714 - 388 -3951
e -mail margetichj @pacden.com
Project Information
Building Permit: PLM2011 -00383 Type of Work: Med Gas
Address: 7275 SW Dartmouth Ave
Contractors Name:
The plan review was performed under the State of Oregon Residential Specialty Code
(OPSC) 2011 edition and NFPA 99C 2002 edition. Please respond to conditions below.
1) Please provide a complete breakdown of the following items regarding the
• "Statewide Fee Methodology for Medical Gas Installations" for determining
the permit fee for the City of Tigard, as per OAR 918 - 050 -0150
MED GAS SYSTEM EQUIPMENT 9,210.00
LABOR AND MATERIALS 6,050.00
• installation costs (labor + Material)
• system equipment
• fixtures
• inlets
• outlets
• appliances
2) Pg P -2 shows a plaster trap (PT). This needs to be added to the plumbing
permit ADDED TO PERMIT APPLICATION
3) If the plaster trap requires a model trimmer you will need a backflow device
such as a "dual check" or better for the trimmer. Pg P -2. This needs to be
added to the plumbing permit ADDED SECOND BACKFLOW TO PERMIT
APPLICATION, AND P -1 FIXTURE SCHEDULE, AND P -2 PLAN
• KEYNOTED
4) You plans show that you are running water to the dental chairs (DCW). You
will need one RP device for all water run to the chairs. This needs to be •
added to the plumbing permit. OKAY- ONE IS SHOWN ON THE PLANS TO
. •
THE CHAIRS, THE SHELL BUIDLING WATER LINE HAS AN EXISTING
BACK FLOW PREVENTER TO REMAIN.
5) Your cut sheets show the VacStar 50 vacuum pump. The maximum number
of simultaneous users is four, you have eleven users as shown on the plans
pg P -2. The VacStar 50 is undersized, please provide information regarding
the use of the VacStar 50. THE VACSTAR WE USE IS MODEL 80.
UPDATED FIXTURE SCHEDULE ON P -1. WE HAVE ELEVEN CHAIRS -
NOT ELEVEN USERS. USERS IS ONE DOCTOR PER THREE CHAIRS, SO
IN THIS OFFICE WE WILL HAVE LESS THEN 7 `SIMULTANEOUS USERS'
6) Your cut sheets recommend a minimum PVC pipe size 1 1 /4 to 1 1 /2 for the VS
50 (pg 11), your plans show 1" lines for both branches on the Vacuum piping.
Your pipe sizing is undersized as shown on Pg P -2 plans. Please provide
information regarding the reduced sizing. SEE P -2 FOR UPSIZED LINES TO
1 1/2" AND 1" OUTLETS
7) Your cut sheet show the AirStar 30 for the compressed air. The maximum
number of users is four you have eleven users as shown on P -2. The AirStar
30 is undersized, please provide information regarding the AirStar 30. WE
HAVE ELEVEN CHAIRS —NOT ELEVEN USERS. USERS IS ONE DOCTOR
PER THREE CHAIRS, SO IN THIS OFFICE WE WILL HAVE LESS THAN 4
`SIMULTANEOUS USERS'
When responding, provide an itemized letter stating in what way each numbered
issue has been addressed in the revision.
When submitting revised drawings or additional information, please attach a copy of the
enclosed City of Tigard, Letter of Transmittal. The letter of transmittal assists the City
• of Tigard in tracking and processing the documents.
Respectfully,
George Heimos Plans Examiner
(503) 718 -2424
georgeh @tigard - or.gov
•