Development Team Meeting Notes (96-99)

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a COURTHOUSE SQUARE DESIGN TEAM MEETING July 17, 1997 1:30 PM ~ Present: Dan Petrusich, NIlVIDC, presiding; Byron Courts, Craig Lewis, M1~~IDC; Ra.ndy Curtis, Bob McCune, Marion County; R.G. Andersen-Wyckoff, John Whittington, Salem Area Transit; Kathleen Thorpe, Centurywest - Environmental; Leonard Lodder, Arbuckle, Costic Architects; and Dave Hays, Pence/Kelly Construction. Randy introduced Bob McCune, Marion County Facilities Management, who will be attending these meetings with Ra.ndy. Bob will cover for Randy when he is on vacation August lOth- 22nd. Bob also handles the county telecommunications and can provide valuable information to the team at this stage in planning. Randy also suggested moving the Thursday meeting location to the Sth floor of the courthouse. We have two conference rooms (A & B) overlooking the project. It was agreed that starting next week, July 24'~, the Design Team meetings will be held at the courthouse. Leonard's only negative to this move was that if drawings are needed to review, he would need advance notice to bring them along with him. He won't be able to have quick, easy access to them. Environmental The action agenda items order was shifted to allow Kathleen to discuss environmental issues first. Kathleen was to quantify dollars involved in removal of contaminated dirt. She had not been able to put together these numbers, but will have something next week. She will be ~ meeting with Craig, MNIDC, ne~rt week to go over her assumptions/risks/recommendations with NIlVIDC before presenting to team. Working with a P1 structure and going forward with remediation, she made some assumptions regazding overall depth range. She would use a conservative range of 12 feet, plus a 3 foot underslab drainage, and 1 foot for change of minds. Leonard reminded her that there would be no underslab drainage. It was noted that Mike Hayford's depths were shallower. There were three issues that Kathleen wanted to accommodate in her work up: 1. worker safety; 2. overall lazgest extent of excavation; and 3. site composition. Once you hit river rock with environmental hazards, it becomes a problem and containment is at risk. How does that relate to decision to dig hot spots? You hit groundwater at 13 - 16 feet. It is difficult to dig impacted materials below the water line without pumping out water. We will do that if needed. Once Kathleen and NIlVIDC meet ne~ week, we will have discussion with design team and Marion County. The majority of the contamination is between 13 - 33 feet. Remediation system would be much different for P2 level at 24 feet. With P 1 we have latitude to spend less dollars and leave impacted soils in place and not dig, haul out and deal with issues of de-watering. In negotiations with Chevron, they want all contamination removed. We are governed by a different set of rules on cleanup. Remediation of underground storage tank spills are governed by a different set of rules than environmental spills. The Chevron site will be governed by ~ different criteria. Some impacted soils can be left in place and monitored. P 1 is more cost effective as far as remediation. Are we still on target to clean up Chevron? Kathleen met with Chevron last week. The county does not want to delineate, but move forward with Page 1 of 9