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Moffatt & Nichol Redwood Shores / San Carlos Airport Levee, San Mateo County PROPOSAL FOR LEVEE CERTIFICATION SERVICES 8585.000.001 June 26, 2009 Page 5 exploration program. Additional costs incurred as a result of encountering suspected hazardous materials will be charged on a time-and-expense basis over and above the estimated fee for the exploration proposed herein. Soil cuttings and drilling fluid will be placed in 55-gallon drums and will be left on site at a location designated by the City of Redwood City (City). For the borings proposed herein, we anticipate up to 16 drums of spoils and drilling fluid will be generated. We will prepare one composite sample from the drums from each boring (up to 6 composite samples total) and submit the samples to an analytical lab for testing for select potential contaminants such as TPH and BTEX. We have assumed that the City has an available environmental report(s) that shows there are no other potential contaminants related to the levee fill or past site use; if this documentation is not available, we may need to adjust our analytical testing methodology to accommodate for other potential contaminants. We will utilize the services of a drum transport and disposal service to remove the drums from the site. Our fee assumes that the soil cuttings and drilling fluids will be suitable for transport and disposal to a Class 2 waste management facility. PHASE 2 - SUDDort For Levee Certification Package We will compile appropriate stability analyses related to as-built conditions and assist in preparing a package of geotechnical data to be included in the City of Redwood City's levee certification package. FEE ESTIMATE We propose to conduct the above-described geotechnical services on a time-and-expense basis per our current Preferred Client Fee Schedule. Any requested contract changes would need to be approved in writing before we proceed. PHASE PHASE 1 - Optional PHASE 2 FEE ESTIMATE $48,500 $5,000 If you are in agreement with the scope of services and fees outlined above, please forward a copy of your standard agreement for our review. Upon our agreement regarding the terms, we will return a fully executed copy for your records. Work will not commence without prior receipt of an executed agreement. We understand that the City of Redwood City intends to use an on-ca11 contract to perfonn construction quality control for the planned levee improvements. Our experience, and that of our profession, clearly indicates that the risk of costly design, construction, and maintenance problems can be significantly lowered by retaining the design geotechnical engineering firm to provide geotechnical testing and observation services during construction. Further, through our interactions with FEMA we are familiar with the importance they place on construction documentation in the certification process. If a levee repair project is not properly documented