CH2M Hill, 411 E. Wisconsin Avenue, Suite 1600, Milwaukee, Wisconsin 53202

F -- DEMOLITION, EARTHWORK, DRILLING, AND GROUNDWATER TREATMENT SOL RFP 164, RFP 165, RFP 166, RFP 167 DUE 113099 POC Donna Navarro, (414) 272-1052, Ext. 355 Notice to subcontractors of RFPs for the Penta Wood Products Superfund Site Remedial Action. A two-step bidding process will be used for the selection of subcontractor(s) to perform remediation services at the Penta Wood Products Site near Siren, Wisconsin. The Contractor is CH2M HILL, Inc. and the project is funded by the U.S. EPA under CH2M HILL's prime contract 68-W6-0025. Four separate subcontracts will be executed and subcontractors are invited to propose on any combination of the subcontracts, from one subcontract to all four subcontracts. The four subcontracts consist of DEMOLITION, SITE PREPARATION/EARTHWORK, DRILLING/WELL INSTALLATION, and BIOVENTING/GROUNDWATER TREATMENT. The DEMOLITION subcontract (RFP 164) consists of offsite disposal of existing investigation-derived waste and debris, demolition of 16 buildings (foundations excluded), and recycling or disposing of material in a landfill, as appropriate. The DEMOLITION subcontract cost is estimated to range from $140K to $200K. The SITE PREPARATION/EARTHWORK subcontract (RFP 165) includes site preparation, excavation and consolidation of approximately 85,000 cubic yards of Pentachlorophenol and arsenic-contaminated soil and wood chips into a 7-acre Corrective Action Managagement Unit, onsite solidification of highly contaminated arsenic soils, concrete demolition, placement of bioventing and groundwater treatment system piping and well nest vaults, and site restoration. The SITE PREPARATION/EARTHWORK subcontract cost is estimated to range from $1.7M to $2.4M. The DRILLING/WELL INSTALLATION subcontract (RFP 166) includes installation of combination groundwater extraction/shallow biovent/deep biovent wells, formation sampling below the water table, development of extraction wells, well abandonment, and piezometer installation. The DRILLING/WELL INSTALLATION subcontract cost is estimated to range from $260K to $340K. The BIOVENTING/GROUNDWATER TREATMENT subcontract (RFP 167) consists of construction of a pre-engineered building, a biovent system, a liquid-phase granular activated carbon system for groundwater treatment, and a LNAPL product recovery system. The BIOVENTING/GROUNDWATER TREATMENT subcontract cost is estimated to range from $300K to $420K. Under the two-step bidding process, interested subcontractors will submit a separately sealed technical proposal and a sealed pricing proposal. Company experience, technical approach, project schedule, health and safety policies/records, and financial records will be evaluated. Only those offerors whose technical proposals meet the RFP requirements wil be eligible for Step Two. During Step Two, the pricing proposals of eligible offerors will be opened and the award will be made to the eligible offeror with the lowest bid. The RFP packages will be available on or about October 20, 1999. Requests for the RFPs will be received by phone (414.272.1052 ext. 543) or mail (CH2M HILL, Inc., 411 E. Wisconsin Avenue, Suite 1600, Milwaukee, WI 53202, Attn: Matthew Kluge)until October 28, 1999. A series of mandatory pre-bid meetings will be held from November 2 through November 4: BIOVENTING/GROUNDWATER TREATMENT on November 2, 1999 at 1:00 p.m. (CST); SITE PREPARATION / EARTHWORK on November 3, 1999 at 8:00 a.m. (CST); DEMOLITION on November 3, 1999 at 2:00 p.m. (CST); and DRILLING/WELL INSTALLATION on November 4, 1999 at 8:00 a.m. (CST). Participants should meet at the main gate of the site at 8682 Daniels 70, two miles west of Siren, WI. Both Step One and Step Two Bid packages are due in the CH2M HILL Milwaukee office by 1:00 p.m. (CST) on Tuesday, November 30, 1999. Posted 10/07/99 (W-SN389934). (0280)

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