U.S. Environmental Protection Agency, 75 Hawthorne St. PMD-8, San Francisco, CA 94105-3901

36 -- SUBSURFACE SOIL PROBING MACHINE SOL PR-CA-98-0496 DUE 092898 POC Alvin Wong, (4l5)744-1023 E-MAIL: Wong.Alvin@epamail.epa.gov., Wong.Alvin@EPAMail.EPA.GOV. he equipment needed for subsurface investigations should be able to provide the following capabilities: Soil Sampling < Soil sampling from the surface to an approximate depth of 75 feet, with both continuous and/or discrete sampling. < Variable soil volume samplers (1" to 1.5" diameter) < Dual Tube Soil Sampler, for continuous soil cores with a cased hole. This system limits cross contamination when sampling through perched water tables, allows for bottom-up grouting, set monitoring wells with screen packs and seals. < The capability to collect soil samples in acetate, brass or stainless steel liners. < Soil samplers with the ability to utilize sand catchers. Groundwater Sampling < Collect groundwater samples from unconsolidated formations. < Collect both static water levels and piezometric measurements. < Collect both DNAPLs and NAPLs from water bearing zones. < Install small diameter monitoring wells (<1.5"OD). Soil Gas Sampling < Collect soil gas samples in tedlar bags or through a tube to a GC ( need a Vacuum/Volume System). < Adaptable system which could collect soil gas into SUMA canisters. < Installation of permanent soil gas implants for monitoring. < Installation of sparging capable of flow rate up to 84 liters per min. Direct Sensing System < Obtain soil conductivity and depth measurements (useful with location of water bearing zones). < Provide real time and permanent logs of generated information. To accomplish the above stated goals the equipment chosen should meet the following specifications: Soil Probing Equipment Specifications Hydraulically Powered Soil Probe Unit < greater than 50 inch stroke; < 18,000 lbs or greater downforce; < greater than 25,000 lbs of pull; < hydraulic cylinders to allow folding, up and down movement and extension to 18 inches from carrier vehicle; < ability to move probe unit up to 22 inches left and right of the center of axis of the carrier vehicle. Hammer < capable of 1800 blows per minute at forces greater than 15,000 lbs per blow to top of rod; < up to 125 rpm bi-directional rotation with 295 ft-lb of torque; < capable of installation and retraction of rods up to 2.125 inches in diameter. Hydraulic Power Conversion Package < installation of hydraulic pump, fluid power system and remote ignition in carrier vehicle; Carrier Vehicle < 7.3L V8 Diesel engine < 4-speed Automatic Transmission < Heavy duty cooling package < Heavy duty suspension < Rear anti-lock brake system < Four wheel drive with manual locking hubs < Air conditioning < Extended cab < Dual rear wheels Probe Unit and Tooling Equipment Enclosure < Weather tight enclosure mounted on chassis of carrier vehicle to house hydraulic unit and accessories; < Swing-up/roll-up side doors, and roll-up rear door; < Retractable work counter; < Overhead equipment carrier and tool rack; < Key locks; < Minimum 60 gallon water reservoir with low pressure pump and garden hose connection;< Multi-drawer tool chest; < Machine tool vise; < Interior compartment and exterior work lights. Carrier Vehicle Rear Suspension Kit < Modification to existing standard rear suspension system of carrier vehicle (addition of a full-leaf wrap around spring to each side of rear suspension on carrier vehicle) Vacuum System < 12 Volt D.C. diaphragm vacuum pump; < 11 liter or greater vacuum tank with vacuum gauge, vacuum valve and control switch. Overhead Exhaust System < Modification to carrier vehicle exhaust system to change from an under vehicle configuration to a stack exhaust system above carrier vehicle/probe unit enclosure. Winch and Hitch < Installation of a 10,000 lb rear receiver hitch on carrier vehicle including towing light kit; < Installation of an 8,000 lb winch with hitch receiver to front of carrier vehicle, winch to be complete with remote control operating function. Generator < Installation of a generator that operates with a 12 volt DC supply, 1600 watt output and 110 volt AC output; < Stand alone battery and generator system isolator; < Installation of two or more power outlets on probe unit enclosure. Grout Pump < Grout machine capable of 1000 psi and delivering ASTM grout mix through 100 feet of 1/4 inch poly tubing. Accessory Tools < 100 feet of 1.25 inch diameter probe rod; < 50 feet of 2.125 inch diameter probe rod; < Discreet Soil Sampling Tools; < Continuous Core Sampling System Tools; < Ground Water Sampling Tools; < Well Installation System Tools; < Vapor Sampling System Tools. Soil Conductivity Measurement System < Direct soil conductivity sensing system with two sensor probes, depth measurement apparatus, connecting cables, signal generation and data acquisition hardware, control module, system software, probe rod rack holder, and probe rods to allow probing to depth of 70 feet. < System should operate on 120 VAC and include an inverter to run system from 12 VDC outlet. < Installation of a 2.8 KW generator to run instrumentation. < System trailer (8'x5'x5') to house direct sensing equipment and tooling. System Training Posted 09/22/98 (W-SN252845). (0265)

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