Agmt08 Redwood City Redevelopment Agency

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Redwood City Redevelopment Agency DTSC Agreement No. 07-T3454 Exhibit A, Attachment 1 Page 10 of 21 specified in Exhibit E of either DTSC's approval of such plans or DTSC's requirements for approval of the plans. In the event the Agency agrees to proceed with an approved Sampling and Analysis Workplan for a Property or group of Properties, the Agency will implement the approved workplan in accordance with the approved implementation schedule. DTSC may provide oversight of workplan implementation. All field work must be conducted in accordance with applicable Cal-OSHA regulations set forth in California Code of Regulations, Title 8, including but not limited to section 5192 and applicable DTSC guidance. The Sampling and Analysis Workplan and QA/QP may, in appropriate circumstances, be combined with other documents prepared by or on behalf of the Agency as approved by DTSC. (b) Site Characterization Report. The Agency may submit a Site Characterization Report that, at a minimum, presents the data, summarizes the findings of the investigation, validates data and includes recommendations and conclusions. DTSC will review the Site Characterization Report and will advise the Agency in writing, within the period specified in Exhibit E, of either DTSC's approval of such report, or DTSC's requirements for approval. The Site Characterization Report may, in appropriate circumstances, be combined with the Remedy Selection Document or Remedial Action Plan referred to in Task 6 or included with other documents prepared by or on behalf of the Agency. TASK 4. Risk Evaluation and Cleanup Level Determination. If the Agency decides to proceed with a remedy or removal action, a scoping meeting may be held to discuss how the risk evaluation and cleanup level determination will be conducted for the Property or group of Properties. If appropriate, the Agency may conduct a risk evaluation consistent with U. S. EPA Risk Assessment Guidance for Superfund (EPA/540/1-89/002) and DTSC's Supplemental Guidance for Human Health Multimedia Risk Assessments of Hazardous Waste Sites and Permitted Facilities. This evaluation should identify the chemicals of concern and potential routes of exposure; characterize the potential risk; evaluate potential risks to environmental receptors; consider existing and contemplated uses of the Property or group of Properties; and identify site cleanup goals. If DTSC agrees, this information may be submitted in the Remedy Selection Document or Remedial Action Plan or another document combining one or more tasks contained in this agreement. The parties recognize that, depending on the site characterization and the proposed remedy or removal action, a site specific risk evaluation may not always be necessary. However, the following information must be included in the remedy selection document: identification of chemicals of concern, remedial action objectives and cleanup goals and discussion of the derivation of the cleanup goals as appropriate. TASK 5. Feasibilitv Stud v . The objective of this task is to evaluate feasible remediation and response alternatives. If the Agency decides to proceed with the remedy or removal action, reasonable potential alternatives for the remediation of a Property or group of Properties and response to the presence of hazardous substances should be evaluated, including the IIno action" alternative. Such an evaluation may be incorporated in the Remedy Selection Document, or may, if the analysis is complex, be addressed in a separate study or report. The evaluation should (a) identify the goals for the cleanup based upon current and projected future land uses; (b) evaluate feasible alternatives to meet these goals; and (c) recommend a preferred alternative. The feasibility study may be included in or combined with the Remedy Selection Document or the "Remedial Action Plan" or the IICleanup Plan" or other document, as approved by DTSC. TASK 6. RemedY Selection Document. The purpose of the Remedy Selection Document is to summarize results of the site characterization, risk evaluation and feasibility study and to describe the remedial action or removal plan. The remedy selection may be entitled II Remedy Selection Document," "Remedial Action Plan" (RAP) or "Cleanup Plan" and may include other tasks described herein. The document shall address the following: