F -- SUBSURFACE EXPLORATION AND SAMPLING PLAN, PROVIDENCE RIVER, PROVIDENCE, RHODE ISLAND

Notice Date

June 11, 2001

Contracting Office

Department of Army, New England District, Corps of Engineers, 696 Virginia Road, Concord, Massachusetts 01742-2751

ZIP Code

01742-2751

Solicitation Number

DACW33-01-Q-0104

Response Due

July 23, 2001

Point of Contact

Norem Krause (978) 318-8833

E-Mail Address

Purchase Branch (Norman.A.Krause@usace.army.mil)

Description

The work of this project involves performing subsurface investigations of the channel bottom in the form of seven 70-foot deep borings and 30 direct push samplings of varying depth (10 to 20 feet) in a section of the navigation channel of the Providence River in Providence, Rhode Island. The Confined Aqueous Disposal (CAD) site that is the location of the subsurface explorations is located within the upper portion of the Fox Point reach of the Providence River, slightly south of the City of Providence. Water depth in the exploration area is generally 35 to 40 feet and the area is subject to a mean tide range of 4.6 feet. The work requires the use of floating plant and related equipment, which shall be supplied by the Contractor. Sampling in each of the seven deep borings shall be continuous from the channel bottom to the bottom of the boring, with five foot spacing between sample drives, and shall be performed in accordance with the SPT procedures of ASTM D 1586, except that a 300-pound hammer, and 18-inch drop, and a 2.5-inch inside diameter split sampling spoon shall be used. The Contractor shall have equipment and materials available to perform rock coring, in the event that obstructions or bedrock are encountered in the long borings. Each material saved from the long boring sample drives shall be split equally into two segments, one for material testing and one for chemical testing. The direct push samplings shall be collected in a clear tube in three foot intervals using a hydraulic hammer with a dual tube system. Rotary drilling methods are not permitted for direct push samplings. The Contractor shall provide the services of a geologist or geotechnical engineer to perform inspection services and to produce detailed boring logs, shall provide all sample containers for proper collection of samples, and shall be responsible for coordination and shipment of samples to the testing laboratories. A "Notice to Mariners" and "Public Notice" are required prior to the start of on-site work. Estimated cost of the project is between $25,000 and $100,000. Specifications will be available at no cost on or about 07/03/01. Requests for Solicitations may be faxed to (978) 318-8207. All responsible sources may submit a quote which will be considered by the New England District.

Record

Loren Data Corp. 20010613/FSOL002.HTM (W-162 SN50O549)