geology and hydrogeology Articles

Investigating the permeability of fractured rock masses and the origin of water in a mine tunnel in Shandong Province, China

The coastal Sanshandao mine is threatened by the overlying Quaternary water and seawater. Following an introduction to the geology and hydrogeological conditions in the mine area, a detailed hydrogeological survey and sampling were conducted and hydrochemical and stable isotopic (δ2H and δ18O) tests on various waters were carried out to characterize the origin of water in the mine tunnels. ...

Aug. 11, 2015

By IWA Publishing

Gas station: Stuart, Florida

Aerobic bioremediation with air sparging Site Description Underground storage tank (UST) leaks from a gas station contaminated shallow ground- water under the property. Following the removal of the leaking USTs and impacted soils around the tank cavity, combined air sparging and aerobic bioremediation was implemented to remediate the groundwater. Site Characteristics Geology and Hydrogeology ...

Oct. 8, 2009

By CL Solutions, LLC

GCW as a means of efficiently remediating contaminated groundwater

With the conventional 'Pump & Treat' method, groundwater is normally extracted from one or several wells, cleaned above ground and disposed off to the either groundwater or surface water. Even when extraction and injection wells are combined, predominantly higher perme-able areas are preferentially penetrated and more fine-grained structures are circumflowed. The bulk of contaminants are ...

Aug. 5, 2008

By IEG Technologie GmbH

Drycleaner site: Houston, Texas

Site Summary: Historical dry cleaning solvent spills from an active dry cleaners contaminated soil and ground water under a shopping center. The migration of contaminants in shallow ground water spread contamination from under the building into a residential subdivision. The resulting plume of contaminated ground water was more than 1,000 feet long. Geology and Hydrogeology The geology of the ...

Oct. 9, 2009

By CL Solutions, LLC

Three-phase approach to improve deep groundwater supply availability in the Elidar district of Afar region of Ethiopia

This study provides new evidence on the effectiveness of a combined remote sensing and hydrogeological investigation method for deep groundwater development in complex geologic and geomorphologic situations in Ethiopia. The study was undertaken in the Elidar district of the Afar region of Northern Ethiopia. Due to the water availability and vegetation in this district, the majority of the ...

Jul. 8, 2016

By IWA Publishing

Case Study: Aerobic Cometabolism of Vinyl Chloride in Central Ohio

Site Summary: Chlorinated solvents were found in ground water at a former automobile repair shop. The solvents were thought to have been released from an underground storage tank (UST). After the UST and associated contaminated soil were removed, CL-Out® bioremediation was implemented to reduce the levels of contamination to site-specific cleanup goals. Geology and Hydrogeology The site is set in ...

Mar. 31, 2010

By CL Solutions, LLC

Spolchemie site remediation and NanoRem field site application

Site Remediation The Spolchemie site was chosen as one of the NanoRem case study sites, to test two types of nanoparticles (NPs) (zerovalent iron - nZVI and iron oxide NPs) for in situ remediation of BTEX (Benzene, Toluene, Ethylbenzene, and Xylenes) contamination. Nanoremediation was seen as an opportunity to enhance the in situ biodegradation of the BTEX contaminants and to reduce the current ...

Jan. 26, 2015

By Nano Iron s.r.o.

Use of Reclaimed Water and Stormwater for Wetland Restoration on a Municipal Wellfield: Evaluating Potential Impacts to Public Health

The Section 21 Wellfield is located in northwest Hillsborough County, Florida. Wetlands and lakes within the wellfield have been impacted by historic wellfield pumping-related activities and local land development activities. The Section 21 Wellfield Restoration Project is a multi-agency effort designed to assess whether surface water and/or reclaimed water are viable water sources for wetland ...

Oct. 13, 2007

By Water Environment Federation (WEF)

Use of reclaimed water and stormwater for wetland restoration on a municipal wellfield: evaluating potential impacts to public health

The Section 21 Wellfield is located in northwest Hillsborough County, Florida. Wetlands and lakes within the wellfield have been impacted by historic wellfield pumping-related activities and local land development activities. The Section 21 Wellfield Restoration Project is a multi-agency effort designed to assess whether surface water and/or reclaimed water are viable water sources for wetland ...

Oct. 13, 2007

By Water Environment Federation (WEF)

Chlorinated solvents: methylene chloride and TCE

Introduction This paper presents the results of a scaled and phased approach to source remediation of high concentrations of recalcitrant chlorinated solvent compounds via soil vapor extraction (SVE) and vapor treatment at a Site in Southern California. Phase I began with refrigerated condensation (C3) in order to achieve high mass removal rates to reduce lifecycle costs and time of ...

Oct. 13, 2010

By GEO Environmental Remediation Company

Laver Rock Mechanics Pre-Feasibility Study - Case Study

Project Description Boliden is investigating the Laver low-grade copper deposit for potential future mining. The old Laver deposit was discovered in the 1930s, and was operated between 1938 and 1946. Mining was primarily conducted as small-scale underground mining, but a small open pit was also in operation at that time. The currently investigated deposit is of larger scale and with lower ...

Dec. 21, 2019

By Itasca International, Inc

Dry Cleaner Bioremediation and Brownfield Redevelopment

Site Description Dry cleaning solvent spills in a storage area lead to the contamination of soil and ground water on the property of a 50-year-old dry cleaners in the middle of a hot brownfield redevelopment. After the contaminated soil was excavated for off site disposal to the most practical extent, residual perched ground water contamination impacted the redevelopment of the property. The ...

May 28, 2019

By CL Solutions, LLC

Assessing the transport and fate of MTBE

Untitled Document Abstract The ether oxygenates MTBE and TAME have been used in petroleum fuel formulations in the UK since the mid-1980s and have led to contamination of major aquifers with these chemicals, including the Chalk aquifer of southern England. An assessment is made of the controls on the fate of MTBE and BTEX compounds at a contaminated site on the Chalk aquifer, ...

Jan. 1, 2001

By Solinst Canada Ltd.

Management of Mining, Quarrying and Ore-Processing Waste in the European Union

At the request of the Environment Directorate-General of the European Commission, BRGM (Bureau de Recherches Géologiques et Minières) has conducted a study on the management of mining, quarrying and ore-processing waste in the European Union. This project was completed mainly through the use of questionnaire sent to sub- contractors in almost each country of the EU. To assess this information ...

Jan. 1, 2001

By European Commission, Environment DG