Development Team Meeting Notes (96-99)

Home Browse Search

in removing it and more in negotiations with DEQ. Meeting tomonow will include David Hartwig and Michael Hansen of Mazion County, Ka.thleen and Jerry Hodson. Keep in mind even though we have ~ put down a known item, there is a chance we may run into unknowns along the way. Two sma11 items need attention: wells for de-watering pump test need to be decommissioned. To what eatent required? They need to be filled by backfill with ground slurry to top by licensed well driller. During excavation they would be lopped off at the top a couple feet below ground. The wells are 8" diameter 1/4" piping down 60 feet. Are there any surprises or questions on this table? Just a question: when will the last two columns be fully done? These columns won't get filled in until we start digging. The ne~ document handed out was a Draft Cost Estimate for environmental site work excluding Chevron. Task III includes environmental oversite during excavation phase. Preconstruction remedial activities are included in the first pass. General assumptions made: site remediation before general construction activities; remediation on Chevron not included; one level garage; and minimum depth for garage at 12 feet (coming up from 16 feet last week). Timing to complete will take appro~umately four weeks and will happen ahead of Pence/Kelly excavation and then deal with any problems as they tum up with observers on site. As a clarification, remedial activities for Chevron are not included because there aze still issues unresolved today. Hopefully they can be resolved at tomorrow's meeting. There are draft cost estimates for Chevron on a sepazate breakout. Based on what you know today vs. previous, is there anything that would increase costs on Chevron? It was a real rough cut, not terribly different cost estimate for arbitration ~ and cost estimates to do ourselves. Dan B. recalled about $250,000 for Chevron. Current estimate is a little under that. Kathleen cautioned that they realize these numbers aze required for budgeting purposes, but also keep in mind there aze factors that may change these numbers. Other assumptions made: four week window, rates used provided by Staton as budgetary rates and will be replaced by bid prices. The line items for soil transportation and loading stockpiled soil may be on the high side and we will get bid price. These aren't hard numbers. A lot of assumptions have been made about how much contamination, how many tanks, etc. The question marks will be filled in when we start digging. We will provide updates as information is revealed to Centurywest and shaze with the group. Cost estimates will be updated as soon as we get better information. Tom outlined each of the Tasks and made additional comments regarding assumptions. Task 1: Decommissioning USTs. Task 2: Soil Removal- minimum of 12 feet for worker safety. It was noted that costs associated with the Liu building need to be identified separately. Dan B. asked that the agreement signed with the attorneys be double checked to see if the work would require bidding. The Liu building is the only one that needs special attention. Task 3: Construction Excavation Oversite This provides for an environmental person to provide oversite for activities during the construction excavation, including taking samples as needed. If any wildcazds come up, they would handle them. Task 4: De-watering - Word from DEQ was that permits were not required for general excavation and ~ pumping tests. Now that we are doing specific remediations, pernuts will be required for discharging for this remedial activity if we want to dischazge to the storm sewer. An altemative would be to send off Page 4 of 8