Specifications include, but are not limited to: The GED requires an experienced Consultant team to work under our direct supervision on an as-needed basis. The Consultant shall provide geotechnical observation and testing services during construction. The GED will provide a minimum of 24 hours of notice to the Consultant from the time the Field Technician is required to report to the Project site. A Deputy Grading Inspector (DGI) is also required for this Project. The work will likely demand a relatively quick response time. The Field Technician and DGI shall only make site visits when instructed to by the GED. The Consultant shall not be paid for non-consecutive inspection visits that are not authorized by the GED. If the Field Technician / DGI is late or otherwise cannot conduct inspections as scheduled, the GED Project Manager shall be informed immediately. The Consultant shall be responsible for completing the following tasks: 2.1 Observation and Testing Review plans and geotechnical reports. Confirm site preparation is performed in accordance with the geotechnical recommendations Collect samples of soils for laboratory testing as directed by the GED. For budgeting purposes, assume the following tests will be required: four (4) laboratory compaction tests (ASTM D1557) four (4) sieve analysis tests (ASTM D6913) four (4) expansion index tests (ASTM D4829) Confirm excavations extend to the minimum recommended depth(s). Observe the exposed subgrade at the bottom of all excavations and confirm they are suitable for backfill. Observe the installation/placement of temporary shoring, if required. Observe and test the fill placement and relative compaction. The Consultant must have the capability to test the relative compaction of fill using both a nuclear gauge and a sand cone. Compaction testing shall be performed in accordance with the Los Angeles Department of Building and Safety (LADBS), Grading Division’s requirements. Refer to the LADBS Information Bulletin P/BC 2023-028 for details. Confirm fill materials are free of all debris, vegetation, roots, and other deleterious materials. Observe pipe bedding and trench backfill operations as part of construction activities.
