Vadose Zone News
-
Calculating ‘old’ and ‘new’ water runoff
Just ahead of a rainstorm, Cody Ross might run out to an agricultural research site as part of his graduate work. He’ll need to get some dye into an injection well. The point? To evaluate the path that water follows from the field during and after the rainstorm. Ross, a member of the Watershed Systems Research Program at the University of Manitoba, is measuring water flow in a part of the ...
-
Memorial University, Grenfell Campus – Biochar Research with AirTerra’s SoilMatrix Biochar
Dr. Mumtaz A. Cheema and students at Memorial University in Corner Brook, NL, have begun forage crop growth experiments with AirTerra’s SoilMatrix Biochar product as of June 20 – 27. AirTerra’s product was shipped via UPS from Calgary to Corner Brook on May 9th and arrived on May 18th. Pictured here is Dr. Cheema with two of his students standing behind boxes of AirTerra product ...
-
Two key factors control phosphorus movement from soil to groundwater
New insights into how phosphorus leaches into groundwater could help reduce its potential impact on water and the environment, a UF/IFAS scientist says. Phosphorus poses an environmental threat when it travels from soils to open water bodies, including lakes, streams and rivers. When too much phosphorus is applied to soils, the ground cannot hold all of the chemical, said Gurpal Toor, an ...
-
Largest Thermal Remediation Site in the World: Steam Enhanced Extraction at the former Williams Air Force Base
TerraTherm has been contracted by AMEC to design, install and operate a Steam Enhanced Extraction (SEE) system to address source zone contamination as deep as 245 ft (75 m) below ground surface (bgs) at the Former Williams Air Force Base (AFB) ST012 Site in Mesa, AZ. AMEC is completing the project under an Air Force contract. SEE is part of the ST012 remedy selected in the Operable Unit 2 Record ...
-
Vapor Intrusion
A proposed new ASTM International standard will link easy to use, cost-effective and nonintrusive passive sampling with concentration data to measure vapor intrusion. WK40037, Guide for Determining Concentration Values from Groundwater, Air and Soil Gas Using Adsorbent-Based, Passive Samplers, is being developed by Subcommittee D18.21 on Groundwater and Vadose Zone Investigations, part of ASTM ...
-
There is still time to register...Remediation in the Vadose Zone
About This Webinar... TITLE: Remediation in the Vadose Zone SPEAKER: Brian Riha, Fellow Engineer, Savannah River National Laboratory DATE: December 6, 2012 TIME: 12:00PM – 1:00PM EST Contaminants entrapped in the vadose zone pose long-term threats to groundwater as contaminants leach downwards over time. The slow but continual transfer of contaminant mass from these source areas adds ...
By Redox Tech
-
EOS Remediation Earns USDA Certified Biobased Product Label
EOS Remediation has earned the USDA Certified Biobased Product Label for six products. The USDA Certified Biobased Product Label verifies that the products amount of renewable biobased ingredients meets or exceeds prescribed USDA standards. Biobased products are goods composed in whole or in significant part of agricultural, forestry, or marine materials. “It gives us a great sense of ...
By Redox Tech
-
New Bioremediation Webinar Series Begins September 2012
EOS Remediation, LLC is pleased to present the new 2012 – 2013 Webinar Series beginning in September If you have enjoyed our top-notch presentations in the past, you won’t want to miss the next series. EOS Remediation, LLC stays ahead of the mainstream, bringing you the lastest information on the timeliest topics. Next Webinar… TITLE: Organic Substrate Selection – ...
By Redox Tech
-
ASTM D6009 - 12 Standard Guide for Sampling Waste Piles
This guide is intended to provide guidance for sampling waste piles. It can be used to obtain samples for waste characterization related to use, treatment, or disposal; to monitor an active pile; to prepare for closure of the waste pile; or to investigate the contents of an abandoned pile. Techniques used to sample include both in-place evaluations of the ...
-
ASTM E2856 - 11e1 Standard Guide for Estimation of LNAPL Transmissivity
Application LNAPL transmissivity is an accurate metric for understanding LNAPL recovery, is directly proportional to LNAPL recoverability and tracking remediation progress towards residual LNAPL saturation. LNAPL transmissivity can be used to estimate the rate of recovery for a given drawdown from various technologies. LNAPL transmissivity is not an intrinsic ...
-
ASTM D7758 - 11 Standard Practice for Passive Soil Gas Sampling in the Vadose Zone for Source Identification, Spatial Variability Assessment, Monitoring, and Vapor Intrusion Evaluations
Passive soil gas samplers are a minimally invasive, easy-to-use technique in the field for identifying VOCs and SVOCs in the vadose zone. Similar to active soil gas and other field screening techniques, the simplicity and low cost of passive samplers enables them to be applied in large numbers, facilitating detailed mapping of contamination across a site, for the purpose ...
-
Withdrawn Standard: ASTM D420-98(2003) Standard Guide to Site Characterization for Engineering Design and Construction Purposes (Withdrawn 2012)
This guide refers to ASTM methods by which soil, rock, and ground water conditions may be determined. The objective of the investigation should be to identify and locate, both horizontally and vertically, significant soil and rock types and ground water ...
-
ASTM E2856 - 11 Standard Guide for Estimation of LNAPL Transmissivity
LNAPL transmissivity is an accurate metric for understanding LNAPL recovery, is directly proportional to LNAPL recoverability and tracking remediation progress towards residual LNAPL saturation. LNAPL transmissivity can be used to estimate the rate of recovery for a given drawdown from various technologies. LNAPL transmissivity is not an ...
-
ASTM D7100 - 11 Standard Test Method for Hydraulic Conductivity Compatibility Testing of Soils with Aqueous Solutions
1. Scope 1.1 This test method covers hydraulic conductivity compatibility testing of saturated soils in the laboratory with aqueous solutions that may alter hydraulic conductivity (for example, waste related liquids) using a flexible-wall permeameter. A hydraulic conductivity test is ...
-
ASTM D6063 - 11 Standard Guide for Sampling of Drums and Similar Containers by Field Personnel
1. Scope 1.1 This guide covers information, including flow charts, for field personnel to follow in order to collect samples from drums and similar containers. 1.2 The purpose of this guide is to help field personnel in planning and obtaining samples from drums and similar containers, using equipment and techniques that will ensure that the objectives of the ...
-
Environmental Cleanup Technology Honored
A technology that uses “green” chemistry to help microbes break down contaminants in soil before they reach the groundwater has earned kudos from the editors of Environmental Protection website as 2011 Soil & Groundwater New Product of the Year. The technology, which was invented by the U.S. Department of Energy’s Savannah River National Laboratory, and licensed and ...
By Redox Tech
-
ASTM D5777 - 00(2011)e1 standard guide for using the seismic refraction method for subsurface investigation
This guide summarizes the equipment, field procedures, and interpretation methods used for the determination of the depth, thickness and the seismic velocity of subsurface soil and rock or engineered materials, using the seismic refraction method. Measurement of subsurface conditions by the seismic refraction method requires a seismic energy source, trigger cable (or radio link), geophones, ...
-
ASTM D6429 - 99(2011)e1 standard guide for selecting surface geophysical methods
This guide applies to commonly used surface geophysical methods for those applications listed in Table 1. The rating system used in Table 1 is based upon the ability of each method to produce results under average field conditions when compared to other methods applied to the same application. An “A” rating implies a preferred method and a “B” rating implies an alternate ...
-
EOS Remediation at Battelle
EOS Remediation’s family of innovative and sustainable products for enhanced bioremediation will be featured in numerous presentations and posters at the 2011 Battelle International Symposium on Bioremediation and Sustainable Environmental Technologies in Reno, Nevada (June 27-30, 2011). We are proud that our products span a wide variety of disciplines at this year’s conference as ...
By Redox Tech
-
Restoring coastal wetlands? check the soil
Rising sea levels and coastal development are threatening coastal freshwater wetlands with saltwater intrusion. While most ecosystem restoration projects have focused on surface water and groundwater, new research finds that conditions in the vadose zone, the unsaturated soil below the surface but above the water table, are of particular importance to seedling survival in coastal floodplain ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you