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COMMERCIAL DESIGN - BUILDERS <br />5599 San Felipe • Suite 1440 <br />June 30, 2011 <br />City of La Porte Inspections Division <br />ATTN: Debbie Wilmore <br />604 W Fairmont Pkwy <br />La Porte, TX 77571 <br />Houston, Texas 77055 713, 789.2529 • Fax 713,782-375.5 <br />Re: Plumbing calculations, 2009 UPC vs 2009 IBC <br />Dear Ms. Wilmore, <br />Clay Development has several projects In La Porte, including the build -out of a speculative <br />lease space in a warehouse building at 359 Pike Court (Suite 100). We have recently learned that La <br />Porte adopted the 2009 Uniform Plumbing Code and that the number of plumbing fixtures Is to be <br />calculated following Table 4 -1 in that code, We had previously used plumbing calculations from the <br />IBC table. <br />was not able to find an occupancy in the UPC table which matches that of a <br />storage /distribution type building. The closest occupancy is "Industrial warehouses, workshops, <br />foundries... ", which seems to be geared towards a manufacturing -type space rather than storage. <br />When using this occupancy the number of fixtures as calculated is much higher than If it was <br />calculated using the IBC table. As an example, here are comparable calculations for the same 5 -2 <br />space with an occupant load of 735: <br />Per IBC: 8 water closets, 8 lavatories, 1 drinking fountain <br />Per UPC: 30 water closets, 50 lavatories, 5 drinking fountains <br />Given that there is no matching occupancy in the UPC plumbing calculation table, and the <br />number of as calculated by the only occupancy listed that` is somehow closer to our use is <br />in great excess of those calculated by IBC; we hereby respectfully request approval to use the 2009 <br />IBC table 2902.1 for plumbing calculations. <br />Feel free to contact me if you have any questions. <br />Regards, <br />C <br />Carla R. Haramboure, AIA <br />DEVELOPERS/ DESIGN - BUILDERS OF INDUSTRIAL BUILD -TO -SUIT FACILITIES FOR SALE OR LEASE <br />- www.claydevelopment.com <br />11 <br />