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01
City of Pleasanton
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CITY CLERK
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2016
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010516
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12/29/2015 3:26:28 PM
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CITY CLERK
CITY CLERK - TYPE
AGENDA REPORT
DOCUMENT DATE
1/5/2016
DESTRUCT DATE
15Y
DOCUMENT NO
01
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▪ Maintenance program <br /> n Long term monitoring program, including performance and success criteria. <br /> ® Measures to assure protection from human disturbance and to protect the area from development <br /> in perpetuity. <br /> GEOLOGY AND SOILS(SECTION 4.4) <br /> Significant Impact <br /> Impact 4.4-1: As is true for the entire region, the project would likely be subject to one or more severe <br /> earthquakes and associated seismic hazards during the life of the project. <br /> Finding <br /> Changes or alterations have been required in, or incorporated into, the project which mitigate or avoid the <br /> significant effects on the environment. <br /> Facts in Support of Finding <br /> The City of Pleasanton has adopted the following measures which will reduce potential impacts related to <br /> seismic events to a less-than-significant level: <br /> Mitigation Measure 4.4-1a: In general, landslide debris shall be removed where present and replaced <br /> with engineered fill in accordance with the approved corrective grading plan. More detailed information <br /> regarding the location, extent, and depth of the required landslide mitigation shall be depicted on the final <br /> project corrective grading plan to be submitted with the final grading plan, subject to review and approval <br /> by the City of Pleasanton Building and Safety Services Division. <br /> Mitigation Measure 4.4-1b: Landslide repairs shall be conducted on the natural slope behind Lots 24 <br /> and 25 (Landslide 17) and the proposed cut and fill slope adjacent to the driveway south of Lots 24 and <br /> 25 shall also be regarded. The finished slopes should be graded to approximately re-create the existing <br /> slope contours and to conform as much as possible with the adjacent natural slopes. <br /> Significant Impact <br /> Impact 4.4-2: Construction of the project on steep slopes could result in soil erosion or the loss of <br /> topsoil. <br /> Finding <br /> Changes or alterations have been required in, or incorporated into, the project which mitigate or avoid the <br /> significant effects on the environment. <br /> Facts in Support of Finding <br /> The City of Pleasanton has adopted the following measures which will reduce potential impacts related to <br /> soil erosion to a less-than-significant level: <br /> Mitigation Measure 4.4-2a: In the event of a work stoppage due to rain during construction, the <br /> contractor shall construct positive slopes to carry water surface runoff away from steep slopes to storm <br /> drainage structures or other areas where erosion can be controlled. In no event shall a completed slope be <br /> left standing through the winter season without erosion control features being provided. <br /> Mitigation Measure 4.4-2b: The on-site geotechnical engineer shall determine the depth of topsoil in the <br /> field during grading. Identified top soil shall be reserved and placed on graded slopes Excess top soil that <br /> LUND RANCH II(PUD-25)RESIDENTIAL PROJECT 10 FINDINGS <br />
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