Video and instructions for soil sampling in accordance with ASTM standards D5314 and D7758. This article will give instructions on how to sample soil in accordance with ASTM standards D5314 and D7758 for passive soil gas samples for volatile and semi-volatile organice compounds. It features Beacon’s BeSure Sample Collection set. Soil sampling is often done after a phase 1 environmental site assessment has identified potential environmental liabilities.
You will need tools and supplies for this job, including a hammer drill, slide hammer, or soil auger, and other common hand tools. These instructions are those routinely used but can be modified as needed.
Prior to starting, locate and mark the sample loctations as well as any safety hazards. Clear vegetation and debris as necessary. Create a 1.5″ diameter whole, eventually extended to a 3 ft. depth. While wearing gloves, remove the soil sampling equipment from the kit. Place the aluminum around the top, with wire as shown. Push the vial into the ground and tap into the hole and cover as shown in the video. Coil the wire and lay it flat on the ground surface. Record proper data and perform documentation as indicated.
Retrieve the samples after 7-10 days and send back to Beacon for analysis. Using and plier and screwdriver, remove the aluminum plug and sampling vial. Clean the vial with a clean towel, remove the sampling cap, and cut the wire from the vial with wire cutters. Clean threads with gauze cloth and place the shipping camp onto the sampler. Record sample number ID on the cap’s lable (not a sharpie marker). Place in a 3×4″ sample bag, and record sample number on the bag. Place this bag in the larger return shipping bag. Close the kit, and record on the chain of custody all relevant information.
When sampling on asphalt or concrete, drill a 1″ diameter hole through the surface down to 12″ deep. Remove aggregate material. Sleeve the hole through the sugrade layer. Then extend the hole to 3 foot depth using 1/2″ diameter hammer drill. Place a precleaned pipe through the hole and cut flush at the surface. Use a tapping dowel and hammer to rest the pipe 1″ below surface. Then test as appropriate.