The following is a list of geotechnical and materials testing services that may be required: • Conduct geotechnical observation, field and lab testing for various types of projects including but not limited to, above and below ground structures, earthwork and grading, slope stability analysis, gravity and pressure pipelines, and roadway construction • Observe and test trench backfill, street subgrade, base material, asphalt concrete (AC), Portland Cement Concrete (PCC) and any other material. • Perform compaction testing of various materials, laboratory testing related to all aspects of geotechnical engineering. • Perform wet track abrasion testing for slurry seals • Prepare geotechnical engineering reports with recommendations such as pavement design and compaction reports, subgrade treatment, and various geotechnical engineering studies • Attend field meetings and other geotechnical support services as requested. • Perform field investigation such as pavement coring and boring • Collaborate and work with City staff on various projects as assigned. In addition to the services above, Proposer is encouraged to list any other services the firm is capable of providing as they relate to Public Works improvement projects. Please note that travel time will not be permitted for geotechnical and material testing services unless specifically authorized by the City. Proposer should include travel time to and from project sites in its respective billing rates. Furthermore, all work is subject to prevailing wage rates as set by the State of California. All field work by the Proposer, including its subcontractor(s), shall be completed in accordance with the California Labor Code and is subject to compliance monitoring and enforcement by the Department of Industrial Relations. Consultant shall perform the on-call services described in the Scope of Services. Upon written request from the City Project Administer, Consultant shall provide a letter proposal for specific services requested by the City as further described below and the draft agreement. The Letter Proposal shall include, but is not limited to, the following: A detailed description of the Scope of Services to be provided; The Contract number; The Title/Position of each person who will be performing the work; The hourly rates of each provider; and Any anticipated consumable, material, or ancillary cost to perform the services. No services shall be provided until the City Project Administrator has provided written acceptance of the Letter Proposal. Once authorized to proceed, Consultant shall diligently perform the duties in the approved Letter Proposal.