C -- TEMPORARY WEATHER PROTECTIVE STRUCTURE/COVERING FOR WORK AREA

Notice Date

June 26, 2001

Contracting Office

Kaiser Hill Co.,LLC, Rocky Flats Environmental Technology Site, 10808 Highway 93, Unit B, Building 850, Golden, CO 80403-8200

ZIP Code

80403-8200

Solicitation Number

N/A

Response Due

August 1, 2001

Point of Contact

Procurement, Annette Winzent-Dichard, (303) 966-3012, Technical, Mark Burmeister (303) 966-5891

E-Mail Address

Contact the contracting officer via e-mail (annette.winzentdichard@rfets.gov)

Description

The Environmental Restoration Division of Kaiser-Hill Company, LLC (K-H) is currently planning remediation of soils associated with the 903 Drum Storage Area at the Rocky Flats Environmental Technology Site (RFETS). RFETS is an U.S. Department of Energy facility located approximately 16 miles northwest of Denver, Colorado. As part of a market survey to gain technical information of weather protective structures available, K-H is requesting information from interested parties for providing a temporary weather shelter(s) over the 903 Drum Storage Area environmental remediation site at the RFETS. The structure(s) shall enclose the approximate 3.4-acre work site. Information packets may include a single structure covering the entire work area or a portion of the work area. Structures covering only a portion of the work area will require moving the structure to an unremediated section of the work area following successful remediation of the original location. Clear-span structures are preferred, but not required, due to support columns presenting obstacles during excavation activities. History: The area known as the 903 Drum Storage Area was formerly used to store drums containing waste oils and chlorinated solvents contaminated with plutonium, americium and uranium (i.e., the 903 Pad). Radionuclide-contaminated oil and solvents leaked from the drums into the surrounding soils. The drums were removed in 1968 along with approximately eight inches of contaminated surface soil. Clean fill and an asphalt pad were then placed over the remaining contaminated soils. The fill material overlaying the native soil ranges from 0.3 to 0.9 feet (average of 0.5 feet) in thickness. The asphalt pad is approximately 395 feet by 375 feet by 0.4 to 0.7 feet (average of 0.5 feet) thick and its surface is relatively level over its extent. A Characterization study conducted in 1998 indicates the presence of radionuclide contamination in the asphalt pad, fill material, and native soil beneath the fill material. The same study indicated the presence of low concentrations of volatile organic compounds in the native soils beneath the 903 Pad. Because of the presence and magnitude of the radiological contamination, K-H is interested in technologies and designs that contain dust emissions during soil excavation and removal, transfer, handling, processing, and containerization activities as well as other remedial field activities. Information shall include, but not necessarily be limited to technical specifications, design drawings, field construction capabilities, statements of qualifications, and previous experience in design, fabrication and erection of similar weather shelters. Geology and Topography: Native soils under the 903 Pad are primarily clays and gravels (e.g., gravelly clays, sandy clays, clayey gravels, etc.) with large cobbles (up to six inches) and large/rocks and boulders (up to two feet). The 903 Pad lies on relatively flat ground surface of the Rocky Flats Alluvium. Market Survey: As part of this market survey, K-H is requesting technical and operational information regarding fabrication, proposed design and layout of equipment for a structure to provide protection from weather during remediation of the 903 Drum Storage Area. Technologies of interest include, but are not limited to portable and/or liftable structures, rolling structures, clear-span, free-standing or column-supported structures. Air-supported structures are not acceptable. Structures that minimize the use of support columns, and other obstructions within the structures' "working" area are preferable. The structure must be designed to reduce the potential for dust to migrate from the impacted areas within the shelter to the exterior. The temporary structure(s) must meet the following minimum technical requirements:  The temporary structure shall be designed as an Important or Low Hazard Facility as described in DOE Standard 1020-94, "Natural Phenomena Hazards Design and Phenomena Hazards";  DOE-STD-1020-94 (Revised 1996) requires that all structures be designed in accordance with ASCE 7-95, with the exposure factor, basic wind speed and importance factors shown below. The subcontractor can reduce the wind pressure for the 6,000 ft.elevation of Rocky Flats that ASCE-7-95 allows by the equation of Commentary 6.5.1 and Table C6-1; -Exposure "C" shall be used for the structure at the proposed construction site. -Importance Factor for PC-1 I 1.0 -Basic Wind Speed for PC-1 ("3 Second Peak Gust") is 125 mph. This wind speed is from the 1995 McDonald- Pulipaka study, "A Reassessment of Tornado and Straight Wind Hazards at the Rocky Flats, Colorado Site". Note: For information purposes the wind pressures on the structure shall be as follows: 1. Horizontal projected windward + leeward 36 psf 2. Roof uplift 25 psf  The temporary structure will be categorized as a radiological facility per DOE-STD-5502-94, as such, the requirements of 10 CFR 830, Subpart A-Quality Assurance apply;  The structure sidewalls should extend an additional 10 feet beyond the boundary of the asphalt pad (375 x 395 feet) in each direction to allow for operation of excavation equipment;  The minimum ceiling height of the structure is thirty feet (30') at a distance of ten (10) feet from the sidewall;  The outer panel membrane shall be fabricated of an opaque, beige-colored PVC material or equivalent, and shall allow for acceptable natural lighting levels during the daylight hours;  The structure(s) shall include a minimum of two (2) large loading doors for heavy equipment access (a minimum of 30' wide x 20' high), and a minimum of ten (10) personnel access/egress doors;  The temporary structure shall be anchored (i.e., Duckbill Model l38-DB aluminum anchors or equivalent) and cannot sit on a permanent foundation;  The structure shall include a minimum of 24 equally spaced, explosion-proof fans for ventilation. The fans shall be rated at a minimum of 4,000 scfm;  The design shall include vents near the base of the structure to facilitate ventilation of the structure. The vents shall be approximately 3 feet by 3 feet and shall be equipped with dampers, bird screen, and exterior fixed louvers (to prevent precipitation from entering the structure through the vents). The location of the vents shall be selected to maximize the "sweep" efficiency of the ventilation system. This is a request for information and NOT A SOLICITATION for services, equipment or materials. All submittals shall be received on August 01, 2001. Submit responses and inquires to Kaiser-Hill Company, L.L.C., Rocky Flats Environmental Technology Site, 10808 Highway 93, Unit B, Golden, Colorado 80403-8200, Attention: Annette Winzent-Dichard, Building 116. Phone calls will not be accepted. Questions may be sent via emailed to Annette Winzent-Dichard at annette.winzentdichard@rfets.gov

Record

Loren Data Corp. 20010628/CSOL005.HTM (W-177 SN50Q0D7)