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2002-211RESOLUTION NO. 2002R-211 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF ANAHEIM SETTING FORTH LOCAL CONDITIONS JUSTIFYING AMENDMENTS TO THE 2001 EDITION OF THE CALIFORNIA BUILDING STANDARDS CODE, TITLE 24, CALIFORNIA CODE OF REGULATIONS, INCORPORATING THE 1997 EDITION OF THE UNIFORM BUILDING CODE, THE 1999 EDITION OF THE NATIONAL ELECTRICAL CODE AND JUSTIFYING AMENDMENTS TO THE 1997 EDITION OF THE UNIFORM SWIMMING POOL, SPA, AND HOT TUB, (UNIFORM CODES). WHEREAS, Section 17958.5 of the Health and Safety Code permits the City to make changes or modifications in the Uniform Codes as such changes or modifications are reasonably necessary because of local conditions; and WHEREAS, Section 17958.7 of the Health and Safety Code requires the City Council to make express findings of the necessity for changes or modifications in the Uniform Codes prior to adopting such changes or modifications; and WHEREAS, the Building Official of the City of Anaheim has recommended that the Uniform Codes be adopted by the City with certain changes or modifications which are necessary to meet local climatic, geographical or topographical conditions. NOW THEREFORE, BE IT RESOLVED, that the modifications and changes recommended by the Building Official are hereby found to be necessary on account of local conditions as follows: SECTION 1: Uniform Building Code - 1997 Edition. Subsection 15.02.060.020 of the Anaheim Municipal Code. a. The City of Anaheim is located in an area subject to a climatic condition of high winds and low humidity. This combination of events creates an environment, which is conducive to rapidly spreading fires. Control of such fires requires rapid response. Obstacles generated by a strong wind, such as fallen trees, street lights and utility poles, and the requirement to climb 75 feet vertically up flights of stairs will greatly impact the response time to reach an incident scene. Additionally Table 16-G identifies a significant increase in the amount of wind force at 60 feet above the ground. Use of aerial type fire fighting apparatus above this height would place rescue personnel at increased risk of injury. b. The City of Anaheim is located in the middle of the seismically active area identified as Seismic Zone 4. The viability of the public water system would be questionable at best after a major seismic event. This would leave tall buildings vulnerable to uncontrolled fires due to a lack of available water and an inability to pump sufficient quantities of any available water to floors above the 55 foot level. A severe seismic event has the potential to negatively impact any rescue or fire suppression activities because it is likely to create obstacles similar to those indicated under the high wind section above. With the probability of strong aftershocks there exists a need to provide increased protection for anyone on upper floors. Code. 2. Subsection 15.02.060.030 of the Anaheim Municipal a. The City of Anaheim is located in an area subject to a climatic condition of high winds and iow humidity. This combination of events creates an environment, which is conducive to rapidly spreading fires. Control of such fires requires rapid response. Obstacles generated by a strong wind, such as fallen trees, street lights and utility poles, and the requirement to climb 75 feet vertically up flights of stairs will greatly impact the response time to reach an incident scene. Additionally Table 16-G identifies a significant increase in the amount of wind force at 60 feet above the ground. Use of aerial type fire fighting apparatus above this height would place rescue personnel at increased risk of injury. b. The City of Anaheim is located in the middle of the seismically active area identified as Seismic Zone 4. The viability of the public water system would be questionable at best after a major seismic event. This would leave tall buildings vulnerable to uncontrolled fires due to a lack of available water and an inability to pump sufficient quantities of any available water to floors above the 55 foot level. A severe seismic event has the potential to negatively impact any rescue or fire suppression activities because it is likely to create obstacles similar to those indicated under the high wind section above. With the probability of strong aftershocks there exists a need to provide increased protection for anyone on upper floors. Code. 3. Subsection 15.02.060.040 of the Anaheim Municipal a. The City of Anaheim is located in an area subject to a climatic condition of high winds and low humidity. This combination of events creates an environment, which is conducive 2 to rapidly spreading fires. Control of such fires requires rapid response. Obstacles generated by a strong wind, such as fallen trees, street lights and utility poles, and the requirement to climb 75 feet vertically up flights of stairs will greatly impact the response time to reach an incident scene. Additionally Table 16-G identifies a significant increase in the amount of wind force at 60 feet above the ground. Use of aerial type fire fighting apparatus above this height would place rescue personnel at increased risk of injury. b. The City of Anaheim is located in the middle of the seismically active area identified as Seismic Zone 4. The viability of the public water system would be questionable at best after a major seismic event. This would leave tall buildings vulnerable to uncontrolled fires due to a lack of available water and an inability to pump sufficient quantities of any available water to floors above the 55 foot level. A severe seismic event has the potential to negatively impact any rescue or fire suppression activities because it is likely to create obstacles similar to those indicated under the high wind section above. With the probability of strong aftershocks there exists a need to provide increased protection for anyone on upper floors. 4. Subsection 15.02.060.050 of the Anaheim Municipal Code. a. The City of Anaheim is located in an area subject to a climatic condition of high winds and iow humidity. This combination of events creates an environment, which is conducive to rapidly spreading fires. Control of such fires requires rapid response. Obstacles generated by a strong wind, such as fallen trees, street lights and utility poles, and the requirement to climb 75 feet vertically up flights of stairs will greatly impact the response time to reach an incident scene. Additionally Table t6-G identifies a significant increase in the amount of wind force at 60 feet above the ground. Use of aerial type fire fighting apparatus above this height would place rescue personnel at increased risk of injury. b. The City of Anaheim is located in the middle of the seismically active area identified as Seismic Zone 4. The viability of the public water system would be questionable at best after a major seismic event. This would leave tall buildings vulnerable to uncontrolled fires due to a lack of available water and an inability to pump sufficient quantities of any available water to floors above the 55 foot level. A severe seismic event has the potential to negatively impact any rescue or fire suppression activities because it is likely to create 3 obstacles similar to those indicated under the high wind section above. With the probability of strong aftershocks there exists a need to provide increased protection for anyone on upper floors. Subsection 15.02.060.060 of the Anaheim Municipal Code: This amendment requires roof coverings to be noncombustible or fire retardant and Class A in all areas of the City of Anaheim located East of the Coast Mesa Freeway (SR-55) and south of the Riverside Freeway (SR-91). This amendment is necessary because the City of Anaheim is geographically located in an area which is subject to periodic extremely high velocity wind conditions. Said condition is further accentuated by the topographical features of the hill and canyon areas in the easterly portion of the City. The City of Anaheim is subject to seasonal high temperatures and dry atmospheric conditions which often occur during times of high winds as hereinabove described. Due to the climatic, geographical and topographical conditions hereinabove described, the City of Anaheim is susceptible to fires of particular danger during periods of high winds when fires tend to spread across roofs where such roofs are not of noncombustible or fire-retardant constructions. o Subsection 15.02.060.070 of the Anaheim Municipal Code: This amendment is necessary because the City of Anaheim is geographically located in an area which is subject to periodic extremely high velocity wind conditions. Said condition is further accentuated by the topographical features of the hill and canyon areas in the easterly portion of the City. The City of Anaheim is subject to seasonal high temperatures and dry atmospheric conditions which often occur during times of high winds as hereinabove described. Due to the climatic, geographical and topographical conditions hereinabove described, the City of Anaheim is susceptible to fires of particular danger during periods of high winds when fires tend to spread across roofs where such roofs are not of noncombustible or fire-retardant constructions. 7. Subsection 15.02.060.080 of the Anaheim Municipal Code. This amendment requires a vapor barrier beneath a concrete floor slab in Group I and R, Division I and 3 occupancies and is necessary because of local expansive and sandy soil conditions which contain a significant amount of moisture 4 because of the close proximity of the Santa Ana River. The minimum thickness of concrete floor slabs supported directly on the ground shall not be less that 34 inches (89 mm). An approved vapor barrier membrane shall be placed under slab floors for human occupancy supported directly on the ground in Group I and R, Division 1 and 3 occupancies because Anaheim is located above an aquifer that is often just below the surface grade. In addition, the area is subject to potential severe rain storms during the winter months. Combining these two water resources with the water retention capacity of the area's expansive soil produces a condition wherein the moisture content of the soil is sufficient to increase the moisture content of concrete in contact with the soil. Concrete, which is used as part of a building structure, has the potential to transfer the moisture to the surface causing structural deterioration unless a moisture barrier is provided. EXCEPTION: When justified by a soils report and approved by the Building Official, the vapor barrier may be omitted. 8. Subsection 15.02.060.090 Due to prevailing expansive soil conditions in some areas of the city, deleting this exception would require that slabs be reinforced with minimum reinforcement, a typical requirement, specified routinely by soils engineers and used widely by designers to mitigate damage due to soil expansion and shrinkage. 9. Subsection 15.02.060.100 of the Anaheim Municipal Code. This amendment is needed due to local geologic conditions. Orange County is located in a region that is a densely populated and in an area that has vast and complex network of faults that are believed to be capable of producing future earthquakes similar or greater in size than the 1994 Northridge and 1971 Sylmar earthquakes. Design provisions developed based on detailed study of the 1994 Northridge earthquake need to be incorporated into the local building codes to assure new buildings, and additions to existing buildings, are designed and constructed in accordance with the scope and objectives of the Uniform Building Code. 5 10. Subsection 15.02.060.110 This amendment is needed due to local geologic conditions. Orange County is located in a region that is densely populated and in an area that has a vast and complex network of faults that are believed to be capable of producing future earthquakes similar or greater in size than the 1994 Northridge and 1971 Sylmar earthquakes. Design provisions developed based on a detailed study of the 1994 Northridge earthquake need to be incorporated into the local building codes to ensure that new buildings and additions to existing buildings are designed and constructed in accordance with the scope and objectives of the Uniform Building Code. 11. Subsection 15.02.060.120 This amendment is needed due to local geologic conditions. Orange County is located in a region that is densely populated and in an area that has a vast and complex network of faults that are believed to be capable of producing future earthquakes similar or greater in size than the 1994 Northridge and 1971 Sylmar earthquakes. Design provisions developed based on a detailed study of the 1994 Northridge earthquake need to be incorporated into the local building codes to ensure that new buildings and additions to existing buildings are designed and constructed in accordance with the scope and objectives of the Uniform Building Code. 12. Subsection 15.02.060.130 This amendment is needed due to local geologic conditions. Orange County is located in a region that is densely populated and in an area that has a vast and complex network of faults that are believed to be capable of producing future earthquakes similar or greater in size than the 1994 Northridge and 1971 Sylmar earthquakes. Design provisions developed based on a detailed study of the 1994 Northridge earthquake need to be incorporated into the local building codes to ensure that new buildings and additions to existing buildings are designed and constructed in accordance with the scope and objectives of the Uniform Building Code. 13. Subsection 15.02.060.140 This amendment is needed due to local geologic conditions. Orange County is located in a region that is densely populated and in an area that has a vast and complex network of faults that are believed to be capable of producing 6 future earthquakes similar or greater in size than the 1994 Northridge and 1971 Sylmar earthquakes. Design provisions developed based on a detailed study of the 1994 Northridge earthquake need to be incorporated into the local building codes to ensure that new buildings and additions to existing buildings are designed and constructed in accordance with the scope and objectives of the Uniform Building Code. 14. Subsection 15.02.060.150, of the Anaheim Municipal Code. Because of local climatic conditions, consisting of dry and warmer conditions that promote greater outdoor activity, the need for additional swimming pool barriers and definitions are required. 15. Subsection 15.02.060.160 of the Anaheim Municipal Code. Because of local climatic conditions, consisting of dry and warmer conditions that promote greater outdoor activity, the need for additional swimming pool barriers and definitions are required. SECTION 2. National Electrical Code - 1999 Edition Subsection 15.02.070.010 of the Anaheim Municipal Code. Aluminum expands and shrinks at a much higher rate than other metals. This condition becomes critical for smaller sizes of aluminum conductors, which may break down at termination points in a seismic event causing a fire. Orange County is located in an active seismic area (Seismic Zone 4). The continuous inspection requirement will ensure proper installation. SECTION 3. 1997 Edition. Uniform Swimming Pool, Spa and Hot Tub Code - Subsection 15.02.100.020 of the Anaheim Municipal Code. Because of local climatic conditions, consisting of dry and warmer conditions that promote greater outdoor activity, the need for additional swimming pool barriers and definitions are required. BE IT FURTHER RESOLVED as to all of the Uniform Model Codes that making the Uniform Model Codes, as adopted with local amendments, applicable throughout all areas of the City of Anaheim, including those areas governed by development agreements, is reasonably necessary to correct existing conditions and prevent future conditions that are detrimental to the public health and safety and may result in serious injury. In addition, of all the means reasonably known to the City which could feasibly correct or avoid the injurious or detrimental conditions, amending these codes is the most reasonable means to protect the health, safety and welfare of the public. Failure to apply these Uniform Codes, with the proposed amendments, within areas governed by development agreements would result in a condition injurious or detrimental to the public health and safety. Consequently, these provisions of the Uniform Model Codes, as adopted by reference by the City Council, with amendments thereto, shall apply to all areas of the City of Anaheim which may be the subject of development agreements which became effective prior to the date of adoption of the Ordinance amending the Uniform Model Codes, and which development(s) contain(s) any provision to the contrary. BE IT FURTHER RESOLVED that a copy of this Resolution, together with the Ordinances adopting the Uniform Codes as amended, be filed with California Building Standard Commission. THE FOREGOING RESOLUTION is approve and adopted by the City Council of the City of Anaheim this 1st date of October 2002. Mayor of the City of ~im ATTEST: Pro Tem City Clerk~of t~ City of Anaheim 30768.1 STATE OF CALIFORNIA ) COUNTY OF ORANGE ) ss. CITY OF ANAHEIM ) I, SHERYLL SCHROEDER, City Clerk of the City of Anaheim, do hereby certify that the foregoing Resolution No. 2002R-211 was introduced and adopted at a regular meeting provided by law, of the Anaheim City Council held on the 1st day of October, 2002, by the following vote of the members thereof: AYES: MAYOR/COUNCIL MEMBERS: Feldhaus, Kdng, Tait, McCracken NOES: MAYOR/COUNCIL MEMBERS: None ABSTAINED: MAYOR/COUNCIL MEMBERS: None ABSENT: MAYOR/COUNCIL MEMBERS: Daly · '~ITY CL~'RK OF'THE CITY OF ANAHEIM (SEAL)