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<br />609.3.1 Nonmetallic and ferrous piping shall be prohibited; except that ferrous <br />piping four (4) inches and larger may be used when protected against corrosion <br />and installed in channels, tubes, or in a similar protective manner when approved <br />by the Authority Having Jurisdiction. <br /> <br />SECTION 28: The City Council of the City of Santa Ana hereby finds, <br />determines and declares that adoption of section 8-401 amending California Plumbing <br />Code section 610.8 using Table 6-6 is necessary because Santa Ana is located in an <br />area of low rainfall and hot, dry summer climatic conditions. These conditions cause <br />multiple water sources to be accessed concurrently by the same user. As a result, a %" <br />water supply pipe may be insufficient to supply the water demanded in any given <br />instance. <br /> <br />SECTION 29: That section 8-401 of the Santa Ana Municipal Code is hereby <br />amended such that it reads as follows: <br /> <br />Sec. 8-401. Building supply pipe (California Plumbing Code Section 610.8 using Table <br />6.6). <br /> <br />Section 610.8 of the Plumbing Code is amended to read as follows: <br /> <br />610.8 Size of meter and building supply pipe using Table 6-6. The size of the <br />meter and the building supply pipe shall be determined as follows: <br />1. Determine the available pressure at the water meter or other source of <br />supply. <br />2. Subtract one-half (1/2) pound per square inch pressure (3.4 kPa) for each <br />foot (305 mm) of difference in elevation between such source of supply <br />and the highest water supply outlet in the building or on the premises. <br />3. Use the "pressure range" group within which this pressure will fall using <br />Table 6-6. <br />4. Select the "length" column that is equal to or longer than the required <br />length. <br />5. Follow down the column to a fixture unit value equal to or greater than the <br />total number of fixture units required by the installation. <br />6. Having located the proper fixture unit value for the required length, sizes <br />of meter and building supply pipe as found in the two left-hand columns <br />shall be applied. <br /> <br />No building supply pipe shall be less than three-quarters (3/4) inch (20 <br />mm) in diameter. <br /> <br />Each single family residential structure shall be served with a main water supply <br />pipe of not less than one (1) inch 1.0. <br /> <br />Two (2) hose bibbs served by three-quarter (3/4) 1.0. pipe or larger shall be <br />provided; one serving the front yard and one serving the rear yard. <br /> <br />Ordinance No. NS-2760 <br />Page 12 of 36 <br />