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Section 609.3.1 of the Uniform Plumbing Code is amended to read as follows: 609.3.1 Nonmetallic and ferrous piping shall be prohibited; except that ferrous piping four (4) inches and larger may be used when protected against corrosion and installed in channels, tubes, or in a similar protective manner when approved by the Administrative Authority. SECTION 32: The City Council of the City of Santa Ana hereby finds, determines and declares that amendment to section 8-401 is necessary because Santa Aha is located in an area of Iow rainfall and hot, dry summer climatic conditions. These conditions cause multiple water sources to be accessed concurrently by the same user. As a result, a ~" water supply pipe may be insufficient to supply the water demanded in any given instance. SECTION 33: That section 8-401 of the Santa Aha Municipal Code is hereby amended such that it reads as follows (new language in bold, deleted language in strikeout for tracking purposes only): Sec. 8-401. Building supply pipe (California Plumbing Code Section 610.8 using Table 6.5). Section 610.8 of the Plumbing Code is amended to read as follows: 610.8 Size of meter and building supply pipe using Table 6-5. Knowing the available pressure at the water meter or other source of supply, and after subtracting one half (1/2) pound per square inch pressure for each foot of difference in elevation between such source of supply and the highest water supply outlet in the building or on the premises, use the "Pressure Range" group within which this pressure will fall. Select the "length" column which is equal to or longer than the required length. Follow down the column to a fixture unit value equal to or greater than the total number of fixture units required by the installation. Having located the proper fixture unit value for the required length, sizes of meter and building supply pipe will be found in the two (2) left hand columns. Each single family residential structure shall be served with a main water supply pipe of not less than one (1) inch I.D. Two (2) hose bibbs served by three-quarter (3/4) I.D. pipe or larger shall be provided; one serving the front yard and one serving the rear yard. SECTION 34.: The City Council of the City of Santa Ana hereby finds, determines and declares that amendment to section 8-402 is necessary because Santa Aha is located in an area of Iow rainfall and hot, dry summer climatic conditions. These conditions cause multiple water sources to be accessed concurrently by the same user. Ordinance No. NS-2522 Page 17 of 47