3716 UPLAND AVE 2018-03-27 - Laserfiche WebLink

Jesse Jerabek JN 15044 March 30, 2015 Page 6 Location of Fill Minimum Relative Placement Compaction Beneath footings, 95% slabs or walkwa s Filled slopes and 90% behind retainin• walls Where:Minimum Relative Compaction is the ratio, expressed in percentages,of the compacted dry density to the maximum dry density,as determined in accordance with ASTM Test Designation D 1557-91 (Modified Proctor). The General section should be reviewed for considerations related to the reuse of on-site soils. Structural fill that will be placed in wet weather should consist of a coarse,granular soil with a silt or clay content of no more than 5 percent. The percentage of particles passing the No. 200 sieve should be measured from that portion of soil passing the three-quarter-inch sieve. ADDITIONAL SERVICES In addition to reviewing the final plans, Geotech Consultants, Inc. should be retained to provide geotechnical consultation, testing, and observation services during construction. This is to confirm that subsurface conditions are consistent with those indicated by our exploration, to evaluate whether earthwork and foundation construction activities comply with the general intent of the recommendations presented in this report, and to provide suggestions for design changes in the event subsurface conditions differ from those anticipated prior to the start of construction. However, our work would not include the supervision or direction of the actual work of the contractor and its employees or agents. Also, job and site safety, and dimensional measurements,will be the responsibility of the contractor. During the construction phase, we will provide geotechnical observation and testing services when requested by you or your representatives. Please be aware that we can only document site work we actually observe. It is still the responsibility of your contractor or on-site construction team to verify that our recommendations are being followed,whether we are present at the site or not. LIMITATIONS The analyses, conclusions, and recommendations contained in this report are based on site conditions, as they existed at the time of our site visit. If the subsurface conditions encountered during construction are significantly different from those anticipated, we should be advised at once so that we can review these conditions and reconsider our recommendations where necessary. Unanticipated soil conditions are commonly encountered on construction sites. Such unexpected conditions frequently require making additional expenditures to attain a properly constructed project. The recommendations presented in this report are directed toward the protection of only the proposed house from damage due to slope movement. Predicting the future behavior of steep slopes and the potential effects of development on their stability is an inexact and imperfect science that is currently based mostly on the past behavior of slopes with similar characteristics. Landslides and soil movement can occur on steep slopes before, during, or after the development of property. At additional cost, we can provide recommendations for reducing the risk of future movement on the steep slopes, which could involve regrading the slopes or installing subsurface drains or costly retaining structures. However, the owner must ultimately accept the possibility that some slope movement could occur, resulting in possible loss of ground on the site or damage to the onsite facilities and structures. This report has been prepared for the exclusive use of Jesse Jerabek and his representatives for specific application to this project and site. Our recommendations and conclusions are based on the site materials GEOTECH CONSULTANTS, INC.