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6.Cost Estimates <br />An Engineer’s estimate of probable demolition cost is provided in Appendix C. The estimate <br />includes the demolition/construction activities necessary for decommissioning of the site, along with <br />estimated costs associated with permitting the work (permit fees, project management and <br />consultant fees). This estimate is based on GHD’s research of similar projects and general cost <br />estimating principles using 2017 market assumptions. The estimate does not reflect all local market <br />conditions, such as contractor and resource availability at the time of contractor bid. <br />7.Summary and Recommendations <br />It is recommended that this report be provided to contractors and personnel who may bid on or <br />conduct work at the project site potentially affecting hazardous materials, primarily including the <br />lead and asbestos materials described herein. It is further recommended that the City maintain <br />copies of this report for as long as the hazardous materials identified herein are present at the <br />project site. <br />7.1 Decommissioning Schedule <br />The following presents an approximate sequence and schedule for decommissioning and <br />demolition of the Marina. Many items may occur concurrently. An estimated project timeline is <br />provided in Appendix D. This assumes a separate contract through the City. Timing of specific <br />demolition activities may be affected by regulatory requirements. <br />A.Prepare Bid Documents (approximately 3 months) <br />B.Prepare and submit permit application packages (eight to 10 months for approval, from time of <br />submittal) <br />C.Bid Notice to prospective Contractors for planning, permitting, and performance of demolition <br />and decommissioning <br />D.Award Bid (approximately three months) <br />E.Demolition/Decommissioning activities (approximately six months) <br />•Pre-decommissioning removal of miscellaneous waste containers and universal wastes <br />•Cleaning and decommissioning of pipes, wet wells, sumps, trenches <br />•Cleaning of gross contamination of concrete <br />•All utility cuts and caps are completed <br />•Abatement of lead and asbestos containing materials, if necessary <br />•Removal of structures, utilities, weather stations, and related appurtenances <br />•Restoration of disturbed areas including minimal grading, patching, and riprap restoration <br />GHD recommends that materials reported to contain detectable concentrations of asbestos <br />(Category I and II ACM, RACM, ACCM and/or Presumed ACM) should be removed by a licensed <br />abatement contractor as described further in this report. <br />Work at the project site is understood to meet the Cal/OSHA definition of construction work (8 CCR <br />1532.1[a]) and includes the planned impaction of known or presumed lead containing surface <br />34