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CAFO Project Photos
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Troy Bourbon (left) and John Brenneman use the 7720DT machine to collect DT325 soil samples. |
Jeff Gottula (left), Geologist, and Dave Miesbach, Groundwater Unit Supervisor, both with the NDEQ Water Quality Division, discuss sampling results at the CAFO demo site as the Geoprobe® field team collects more soil core using the 7720DT machine and DT325 sampler.
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| Tom Christy, Vice President of Geoprobe Systems®, discusses subsurface information obtained during a field demonstration at a CAFO site in Nebraska. Team Geooprobe®
demonstrated selected direct push tools and methods that can be used by the Agriculture Industry for groundwater, soil, and unconsolidated sediment investigations.
The field site was located on alluvial deposits of the Platte River in Nebraska. |
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The Geoprobe® 6625CPT machine, one of two
direct push machines used at the CAFO demonstration
site, was designed for geotechnical cone penetration
testing, but also changes to direct push functions,
including augering, logging, sampling, and monitoring
well installation. |
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Richard Holmgren (left) and
Steve Knobbe use the 6625CPT machine for HPT logging
at the CAFO site. |
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Wes McCall (right) provides an explanation of the pneumatic slug test system
and software. Slug tests were performed with the SP16 groundwater samplers
to determine estimates of local hydraulic conductivity (K). The information was
used to determine the potential rate of groundwater and contaminant migration.
SP16 groundwater samplers were installed adjacent to selected HPT/EC log
locations. The SP16 allows for collection of high-integrity groundwater samples
from a discrete interval. Screen length can be varied from a few inches to over 3
feet. SP16 samplers were retrieved, decontaminated, and reused multiple times. |
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| The Geoprobe® Field Demonstration Team reviews existing site information and selects log and sample locations at the Nebraska CAFO site. Dave Miesbach (white hat),
Groundwater Unit Supervisor with the Nebraska Department of Environmental Quality, Water Quality Division, is surrounded by the Geoprobe® field team: Steve Knobbe
(left), Geological Engineer/HPT Specialist; Wes McCall, Environmental Geologist/Demo Project Manager; Richard Holmgren, Customer Service/HPT Technician; Tom Christy,
Vice President/Civil Engineer/Grouting Specialist; Dave Miesbach; and John Brenneman, Customer Service/Soil Sampling Specialist. Also part of the field team (behind
the camera) was Troy Bourbon, Customer Service/Soil Sampling Specialist. |
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