25C - AGMT - RIGHT-OF-WAY DEMO SURVEY AND ENVIR ASMT SRVS

Home Browse Search

Leighton Consulting I (A6) Environmental Services ) Site Investigation Reports: Leighton will analyze the field and laboratory data, and prepare a detailed ESA report that describes the various investigation tasks, the field and laboratory data, and our findings, conclusions, and recommendations. All reports will be appropriately illustrated (site maps, cross-sections, iso-concentration maps, groundwater gradient inaps, etc.) and will be organized in accordance with the requirements of the RFP. The reports will .? a be signed by those who prepared it, and signed and stamped by the California-registered professional (PG or PE) overseeing the CTO. Hazardous materials survey reports for lead and asbestos will also include maps detailing the distribution and location of the hazardous material removals and will be signed by the appropriate licensed professional. e'y Health and Ecological Risk Assessments: Human Health and Screening Level Ecologic Risk Assessments (HHRAs, SLERAs) will be prepared by our subcontractor, Dr. Heriberto Robles ??- of Enviro-Tox Services. The HHRAs and SLERAs will present defensible professional conclusions that summarize the completed Leighton studies, describe any uncertainties, state assumptions and limitations, and provide a scientific basis and rationale for each assumption. Conclusions will be based on current federal, state, and local guidelines, rules, regulations, and requirements. Our goal Is to provide a concise, defensible document the City can utilize in planning/negotiating property acquisitions, site P? improvements and site re-development. HHRA and SLERA evaluations are crucial for negotiating site closure with the environmental regulatory agencies. co Project Schedule by Task For the purposes of this proposal, we have assumed a one-acre, single Assessors Parcel Number (APN) which requires a Phase I ESA, followed by a Phase 11 ESA. The following example Project Schedule demonstrates completing the tasks in terms of elapsed weeks from a project commencement date. This schedule correlates to the Labor Allocation Table provided in the Proposed Staffing and Project Organization section, as well as the Cost and Price Proposal section ' of this proposal. For the Phase II ESA, we assumed a geophysical survey would be performed to clear boreholes and identify subsurface anomalies followed by a soil (direct push) investigation on the first field day (after mark-out) The second field day would consist of a soil vapor investigation CITY OF SANTA ANA I RIGHT OF WAY CONSULTING AND RELATED SERVICES ) 24 t .25C-96