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RES 07100
City of Pleasanton
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RES 07100
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3/30/2007 4:11:15 PM
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3/30/2007 4:09:03 PM
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CITY CLERK
CITY CLERK - TYPE
RESOLUTIONS
DOCUMENT DATE
3/20/2007
DOCUMENT NO
RES 07100
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Pimlico Drive Turnout and Pipeline Project Environnuntal Ckecklist <br /> <br />Potentially Less than <br />Signiricnnt <br />Less than <br /> <br />Issues <br />ic unit or soil that is <br />l <br />l <br />t <br />d <br />B SiKnifican[ <br />Im ~acl <br />~ with Vliligalion <br />Incor orrteJ <br />~ Significant <br />Im act <br />~C No <br />Im ~cl <br />oca <br />e <br />on a geo <br />og <br />c) <br />e <br />unstable, or that would become unstable as a result <br />of the project, and potentially result in on- or off- <br />site landslide, lateral spreading, subsidence, <br />liquefaction or collapse'? <br />d) Be located on expansive soil, as defined in <br />Table 18-1-B of the Uniform Building Code <br />(1994), creating substantial risks to life or <br />property'? <br />e) Have soils incapable of adequately supporting ~ ~ ~ ^X <br />the use of septic tanks or alternative waste water <br />disposal systems where sewers are not available for <br />the disposal of waste water'? <br />Discussion <br />a-i, ii) Less than Significant. The proposed project is near but not crossed by active faults. The <br />closest active faults are the Calaveras fault (maximum magnitude 6.8) 6.5 miles north of <br />the project area, the Hayward fault (maximum magnitude 7.1) about 18 miles north west <br />of the project area, and the Grenville fault (maximum magnihlde 6.9) about 19 miles <br />north of the project area. The potential for damage to the project pipelines, underground <br />vaults and fluoridation building by fault offset is remote (DCM Engineering 2005). The <br />project would be subject to potential damage from earthquake ground shaking at the <br />Calaveras fault with a maximum magnitude of 6.8 at a maximum intensity of IX to X of <br />the Modified Mercalli Scale. <br />The California Unifornr Building Code (California UBC) is based on the Uniform <br />Building Code (UBC) and has been modified for California conditions with numerous <br />more detailed and/or stringent regulations. Specific seismic safety requirements are set <br />forth in Chapter 23 of the UBC. The State earthquake protection law requires that <br />buildings be designed to resist stresses produced by lateral forces caused by earthquakes. <br />The City of Pleasanton implements the requirements of the California UBC through its <br />building permit process. The project has been designed in accordance with foundation <br />and seismic provisions of the 1997 Uniform Building Code as discussed in the project <br />Geotechnical Engineering Investigation Report (DCM Engineering 2005) and the project <br />will be constructed to comply with the applicable codes and standards, to meet or exceed <br />the current seismic Zone 8 requirements. The project also will obtain a building permit <br />from the City of Pleasanton. Effects from ground shaking could be significant but with <br />application of California UBC and project-specific geotcchnical report recommendations <br />the risk will be reduced as much as for any pipeline in a seismically active area. <br />"therefore, this would be less than significant. <br />City of Pleasanton 28 Winzler & Kelly <br />Draft Initial Study/Proposed Negative Declaration August 2006 <br />oaz~~soi <br />
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