RES 15811 - Laserfiche WebLink

TABLE 1. MITIGATION MONITORING AND REPORTING PROGRAM • Implementation Monitoring Monitoring and Monitoring , Verification of Mitigation Measures Procedures Responsibility Reporting Action Schedule Compliance Mitigation Measure 4.4-5: All existing non-engineered The project Community Review and Prior to issuance Verified by: fill,vegetation, and soft or compressible soils and applicant shall Development approve soil and of grading permit. colluvium in existing canyons, creeks, stock ponds, incorporate the Department; spoils removal drainages, and other areas to be graded shall be specifications of this Engineering plans; ensure that Field inspections removed as necessary for project requirements. The measure into project Division all during depth of removal shall be determined by the plans. recommendations construction. Date: geotechnical engineer in the field at the time of grading. of the project Evaluation of unsuitable deposits shall be performed geotechnical report during grading by sampling and laboratory analysis. are properly implemented. Mitigation Measure 4.4-6a: The differential fill thickness The project Community Review and Prior to issuance Verified by: across a lot should be less than 15 feet. Lots requiring applicant shall Development approve corrective of grading permit. local subexcavation of soil and replacement with incorporate the Department; grading plan; engineered fill to achieve this limit should be identified specifications of this Engineering ensure that all Field inspections on the final corrective action grading plan. measure into project Division recommendations during Mitigation Measure 4.4-6b: Following clearing and plans. of the project construction Date: stripping, all areas to receive fill, slabs-on-grade,or geotechnical report pavement should be scarified to a depth of at least 12 are properly inches, moisture conditioned, and compacted to the implemented. requirements for engineered fill. Mitigation Measure 4.4-6c: Site soils and bedrock used for engineered fill shall have organic content of less than 3 percent. Rocks greater than 6-inches in size shall not be placed at depths greater than 10 feet from finished grade. Rocks greater than 18 inches in size should be broken down such that their maximum dimension is less than 12 to 18-inches,or placed in non-structural fills below slopes or under one of the proposed detention basins.Alternatively,these rocks could be used in landscaping and/or creek restoration projects. Mitigation Measure 4.4-6d: Engineered fills shall be compacted to the specifications stated in the geotechnical framework. Over compaction of expansive materials (with a plasticity index of greater than 12) should be avoided within the upper five feet of building areas.All fills shall be placed in lifts not exceeding 12 inches, or the depth of penetration of the compaction equipment used,whichever is less. Hydrology and Water Quality 9 LUND RANCI I I I-PUD-25 JUNE, 2015