groundwater monitoring well Articles
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Mather AFB demonstration of hydrasleeve no-purge samplers
MWHS Americas, Inc. (MWH) was contracted by Dolver Company, Inc. to perform a Point Source Bailer Demonstration at Mather Air Force Base (Mather). This demonstration was initiated to evaluate no-purge technology and indicate the feasibility of using the HydraSleeve no-purge samplers as an alternative groundwater sampling method. On June 18, 2002, eight HydraSleeve point source bailers were ...
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Hydrogeophysics (Groundwater Geophysics): SuperSting R8 multi-electrode electrical resistivity surveys at a closed refinery
PROJECT: Multi-electrode SuperSting geophysical surveys at a complex abandoned petroleum refinery site in Montana LOCATION: Montana (specific location is Confidential, per client's request) PROJECT DESCRIPTION: Designed and performed SuperSting 56-electrode geophysical surveys across approximately 50 acres of land that once supported a long-established liquid fuels and gas refinery. The ...
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TerraStryke TPHENHANCED Pilot Study Guidance Document Passive Release Sock (PRS) Proof-of-Concept Evaluation Program On-Site Evaluation Process to Confirm PHC/TPH In-Situ Remediation Efficacy - Case Study
TerraStryke Remediation Products, LLC (TerraStryke) provide cost-effective biostimulation additives that enhance native microbial populations and realize cost-effective site remediation. To evaluate one of our additives we developed Passive Release Sock (PRS) deployment units which, fit directly into existing 2-inch groundwater monitoring well(s), at a site of your choice. PRS based on-site ...
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Groundwater Plume, Source and Risk Identification Using Passive Soil Gas
Abstract The results from sixty passive soil gas (PSG) samplers placed at a grain silo and mixed-use industrial facility with a known chlorinated solvent release aided with the rapid investigation time-schedule. The samplers were used to determine potential sources, plume extent and vapor risks in areas beyond the previous discrete soil sampling and permanent groundwater monitoring well network. ...
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Project - Continuous LNAPL monitoring under tidal conditions - Former petrochemical site, UK
Client: Environmental Consultant Site Area: 0.3HA Location: Former Petrochemical Site Challenge Geostream UK was contracted to provide detailed information on the thickness of Light Non Aqueous Phase Liquid (LNAPL) on a site situated next to an estuary. Redundant for over a decade, the site had previously been used to store petroleum products and there were multiple groundwater monitoring ...
By Geostream UK
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TerraStryke Pilot Study Guidance Document Passive Release Sock (PRS) Proof-of-Concept Evaluation Program Low-Cost Low-Risk On-Site Evaluation Process for cVOC Remediation - Case Study
TerraStryke Remediation Products, LLC (TerraStryke) provide cost-effective biostimulation additives that enhance native microbial populations and realize cost-effective site remediation. To evaluate one of our additives we developed Passive Release Sock (PRS) deployment units which fit directly into existing 2-inch groundwater monitoring well(s) at a site of your choice. PRS based on-site ...
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Spatio-temporal variation of groundwater contamination using IEA-UEF in urban areas of Jilin City, North-eastern China
Groundwater monitoring wells located in urban areas of Jilin City were sampled from 1980 to 2009 for eight groundwater quality parameters: pH, SO42−, Cl−, NO3−-N, NO2− -N, NH4+-N, F−, and total hardness (TH). The data were analysed by a universal exponential formula based on an immune evolutionary algorithm, and later mapped with the Kriging interpolation method. The primary objectives were ...
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Use of Eight Well Purging and Sampling Record
This article describes a groundwater well purging and sampling form that can be downloaded at our website. A click on the articles button will take you to a list of Monitoring Tips and Procedures articles, one of which is the sampling form. The form can be used to record indicator parameters pH, conductivity, temperature, etc., taken during purging of a groundwater monitoring well. The form is ...
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Succesful Low-Cost Pilot Demonstrates Biostimulation Superior Kinetics and Long-Term Sustainability Utilizing Simple Delivery Approach
NASA Stennis Space Center is impacted with trichloroethene (TCE) in deep water bearing units outside the influence of existing pump and treat recovery systems. Efforts to identify a cost-effective and sustainable alternative to existing remediation strategies included the following in-situ Pilot designed to evaluate feasibility of enhanced reductive dechlorination. The additive chosen was the ...
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Use of geostatistics to evaluate the monitoring well network of a TCE plume
This paper summarises the use of geostatistics to evaluate an existing network of wells in a groundwater monitoring program. The primary objective was to evaluate whether selective well removal would result in a comparable characterisation of a trichloroethylene (TCE) plume. For adequate characterisation, it is important to retain enough wells to evaluate areas with higher concentrations and to ...
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Everett, WA - ERH under active storm water retention basin - Case Study
First below water ERH remediation of TCE in active stormwater retention basin Project Summary TRS Group, Inc. (TRS) worked as a sub contractor to Landau Associates on this unique ERH remediation project. This project represents the first of its kind using ERH for site remediation underneath an industrial storm water retention basin full of water. The treatment area is located beneath the north ...
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ITRC technology overview of passive sampling technologies
This document presents technical overviews of 12 passive sampling technologies. It describes each technology’s basis of operation, intended applications, advantages, limitations, and development status. Contacts for additional information are provided. This overview is an outgrowth of interest and information generated in preparation of the ITRC Technical and Regulatory Guidance for Using ...
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The use of shallow high resolution seismic reflection data to determine drilling locations at the Apache powder superfund site.
INTRODUCTION Groundwater contamination at the Apache Powder Superfund Site in Cochise County, Arizona includes dissolved nitrate-N and perchlorate. Past studies have determined that these contaminants migrate laterally from a perched zone underlying Apache Nitrogen Products, Inc. operating areas into the shallow aquifer of the San Pedro River alluvium (shallow aquifer). The base of both the ...
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Co‐occurrence of 1,4‐dioxane with trichloroethylene in chlorinated solvent groundwater plumes at US Air Force installations: Fact or fiction
Increasing regulatory attention to 1,4‐dioxane has prompted the United States Air Force (USAF) to evaluate potential environmental liabilities, primarily associated with legacy contamination, at an enterprise scale. Although accurately quantifying environmental liability is operationally difficult given limited historic environmental monitoring data, 1,4‐dioxane is a known constituent (i.e., ...
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Underground gasoline extraction made easier
The Abanaki PetroXtractor® -Well Oil Skimmer, used for the removal of oil, fuel, and other floating hydrocarbons from water, where access is limited, was recently evaluated by BJAMM Environmental, Inc. of Canal Fulton, Ohio. Working closely with the Ohio EPA and the Bureau of Underground Storage Agency, this group of consultants deal primarily with gasoline stations using underground storage and ...
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Optimal groundwater contamination monitoring using pumping wells
This study presents a new method for selecting monitoring wells for optimal evaluation of groundwater quality. The basic approach of this work is motivated by difficulties in interpolating groundwater quality from information collected for only few sampled wells. The well selection relies on other existing data relevant to contaminant distribution in the sampling domain, e.g. predictions of ...
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Directional Technologies Down Under
Directional Technologies, Inc. expands international experience with installation of horizontal remediation wells in Australia. By: Kyle Carlton, PG, Senior Geologist During the summer of 2017, Directional Technologies, Inc. was provided with the unique opportunity to partner with several Australian and American companies to successfully design and install horizontal remediation wells (HRWs) in ...
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PRP: The Proven Solution for Cleaning Up Oil Spills
Originally published in 2006 at https://spinoff.nasa.gov/Spinoff2006/er_1.html Originating Technology/NASA Contribution The Exxon Valdez, an oil tanker exporting millions of gallons of oil, ran aground just after midnight on March 24, 1989 in Alaska, creating what is, to this day, the worst environmental disaster in American history. The affected area of coastal Alaska continues to feel the ...
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Between the Lakes - An innovative onsite system serves a condominium and housing project on a popular chain of lakes in a Wisconsin resort community - Case Study
System Profile Location: Three Lakes, Wis. Facility served: Condominium and housing project (total 267 bedrooms) Designer: Baudhuin Inc., Sturgeon Bay, Wis. Installer: Bergeman Plumbing & Heating, Chippewa Falls, Wis. Site conditions: Level; stratified sand soil with loading rate of 1.6 gpd per square foot; seasonal high groundwater 8 to 9 feet below surface. Type of system: Aerobic ...
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Microbubble Oxidation Smokes MTBE and BTEX. C-Sparge Ozone Microsparging for Rapid Removal of MTBE and Benzene
Untitled Document Figure 1. Master Control Unit A system called C-SpargingTM which uses ozone/air injected periodically in conjunction with a pulsing pump has been demonstrated to reduce MTBE from over 1000 ppb to less than 100 ppb in less than 40 days. The rate of decay was found to be a ten-fold reduction in monitoring wells located 3 ...
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