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SECTION 22: The City Council of the City of Santa Ana hereby finds, determines <br />and declares that adoption of section 8-341 amending California Plumbing Code section <br />314.7 is necessary to provide proper support for all horizontal piping, because of the <br />significant potential for damage due to seismic activity. Cast iron is deemed unsafe in <br />light of the seismic zone because of its weight and flexibility. Santa Ana is in close <br />proximity to major active fault systems in Southern California. This area has been <br />designated as the highest seismic risk zone in the hierarchy that rates the potential risk <br />for seismic activity by geographical areas. As a result, a finding has been made that all <br />suspended piping is to be braced to prevent movement or pipe failure. <br />SECTION 23: That section 8-341 of the Santa Ana Municipal Code is hereby amended <br />such that it reads as follows: <br />Sec. 8-341. Horizontal piping (California Plumbing Code Section 314.7). <br />Section 314.7 of the Plumbing Code is amended to read as follows: <br />314.7 All gas piping, horizontal cast iron drain, waste and vent piping, and all <br />other suspended horizontal piping two and one-half (2 '/Z) inches and larger, shall <br />be supported with approved rod and hangars. <br />Exception: plumbers tape (perforated strap iron) may be used to support piping <br />two (2) inches and smaller in type V (wood) construction only. Plumbers tape <br />shall be galvanized and not less than three-fourths (3/4) inch wide and twenty <br />two (22) gage. <br />SECTION 24: The City Council of the City of Santa Ana hereby finds, determines <br />and declares that adoption of section 8-342 amending California Plumbing Code Table <br />3-2 is necessary to provide proper support for all horizontal piping, because of the <br />significant potential for damage due to seismic activity. Cast iron is deemed unsafe in <br />light of the seismic zone because of its weight and flexibility. Santa Ana is in close <br />proximity to major active fault systems in Southern California. This area has been <br />designated as the highest seismic risk zone in the hierarchy that rates the potential risk <br />for seismic activity by geographical areas. As a result, a finding has been made that all <br />suspended piping is to be braced to prevent movement or pipe failure. <br />SECTION 25: That section 8-342 of the Santa Ana Municipal Code is hereby amended <br />such that it reads as follows: <br />Sec. 8-342. Suspended piping support (California Plumbing Code, Table 3-2). <br />Table 3-2 of the plumbing code is amended by adding footnote 2 to the <br />requirements for horizontal piping of all materials specified in Table 3-2 of the California <br />Plumbing Code. <br />Ordinance No. NS-XXXX <br />11 B-11 Page 11 of 37 <br />