Independent consultant specializing in groundwater contamination by dense non-aqueous phase liquids (DNAPLs). Clients and publications listed. Based in the UK.

Hydrogeological services specializing in water supply development, fractured and karst bedrock groundwater investigations, and land application of wastewater. Maryland, USA.

Environmental site assessments and planning, field data collection and analysis, expert testimony, regulatory negotiation, and project implementation for water supply, waste disposal, remediation, mine permitting, and other geology and groundwater applications. Based in New York, USA.

Professional hydrogeological and geophysical services in support of ground-water supply and engineering projects. Includes past projects and articles on groundwater.

Construction dewatering specialists, utilizing vacuum wellpoints, eductor/ejector wells and deep wells for construction and remediation projects involving complex site and soil conditions. North America.

Groundwater hydrology, contaminant transport modeling, independent reviews, international projects, software development, litigation support, special projects.

Offers groundwater monitoring and sampling, site assessment, slug testing, remediation, vapor testing, well abandonment studies, and related services. California, USA.

Services include monitoring, supply, impact studies, stormwater infiltration, environmental site assessments, landfills, and remediation of contaminant impacts. Located in Bolton, Ontario.

Swedish consultants in groundwater, waste and waste water. Also do research related to contaminated land and geological problems. Some information is only in Swedish.

Provides inspection of water wells, geophysical well logging, material exploration, and drilling services. Gommern, Germany.

Specializes in wellfield development and management, water supply, mine pit dewatering, groundwater monitoring, site assessment, and related services. Includes case histories of past projects. Colorado, USA.

Specializes in groundwater treatment and hydrogeologic modeling. Also sells modeling and GIS interface software for groundwater analysis.

Services in groundwater and surface water modeling, hydrology, well installation, hydraulics, restoration, reclamation, and related environmental services. Montana, USA.

Geotechnical and environmental engineers. Services include groundwater evaluation, site assessment, waste disposal, and aquifer analysis. Pennsylvania, USA.

Groundwater hydrologist offers consulting services worldwide, in areas of groundwater supply, control and disposal, as well as soils and rock engineering, exploration and research.

Provides groundwater modeling, sampling, remediation system maintenance, and monitoring well inspections to the environmental and power generation industries.

Provides management, design, and maintenance of groundwater and wastewater systems, environmental compliance, site assessment, and related environmental fields. Lists past projects and contact information for over 200 offices.

Provides groundwater and contaminant transport modeling, deep well injection, mine dewatering, and environmental visualization services. Includes sample visualizations.

Specializes in groundwater exploration and drilling, including supplying fresh water from deep aquifers. Describes capabilities and worldwide experience, including technical papers.

Site investigation, environmental due diligence, risk assessment, monitoring, hydrogeology, water quality, and water sampling. Provides services throughout Europe.

HUBzone certified business providing permitting assistance to clients in Virginia and surrounding states. Specializing in water resources.

Services in direct push sampling of soil, soil vapor, and groundwater, mobile and laboratory analysis, borehole geophysics, and environmental geochemistry. Also offers environmental seminars and technical papers.

Environmental Simulations International provides services in hydrogeology, environmental consulting, groundwater modelling, risk assessment, contaminated land and brownfield development. Also develops groundwater modelling software.

Hydrogeologic consulting in exploration, development, use and management of groundwater, recharge, litigation support, site assessment, contamination, and remediation. Offices in Arizona, USA and Chile.

Offers regulatory compliance, litigation support, due diligence, site investigations, and other environmental services in connection with underground storage tanks, contaminated sites, and other soil and groundwater matters. Texas, USA.

Surface and ground water quality evaluation and management. Background information and articles on environmental subjects such as water quality, impact of hazardous chemicals, and wastewater management.

Professional hydrogeological services of ground-water supply and engineering projects, Slovenia - Europe

Specializes in ground water planning and development, recharge investigations, flow and solute transport modeling, injection well design, and related environmental services. Southern California, USA.

Services include groundwater contamination studies, regulatory compliance, groundwater resource exploration, recharge studies, groundwater transport modeling, mine waste reclamation, and geotechnical lab testing. Lists past projects and clients. Arizona, USA.

Specializes in the exploration, development and production of ground water resources, and offers related related geological and hydrological applications. Includes information about thermal survey techniques used and past projects.

Performs groundwater modeling and services, including project management, borehole siting, aquifer tests, and recharge assessment. Also provides computer software development. South Africa.

Offers hydrogeologic modeling and data visualization services to scientific and engineering firms involved in earth science and environmental projects. Site displays examples of past work.

Consultants in hydrogeology, water resources and the environment, and computer applications. Based in the United Kingdom.

Hydrogeological and environmental consultancy. Specializing in groundwater investigations, resource development, contaminated site assessment, and remedial design and implementation.

Offers services in aquifer test design and analysis, three-dimensional modeling of groundwater flow and solute transport, software development and professional training.

Manufacturer of the VECTOR groundwater flow monitoring system for in-situ tracking of changes in the full 3-D flow vector over time.

Specializes in the investigation and remediation of contaminated ground-water sites. Located in Hoboken, New Jersey.

Provides outsourcing services in groundwater fate and transport modeling, risk-based corrective action and remediation by natural attenuation.

Specializes in environmental assessments, water rights adjudication, ground water exploration, and surface and mining water hydrologic studies. Located in Littleton, Colorado.

Specializes in groundwater, water quality, and environmental data management. Includes details of past projects. Located in Lakewood, Colorado.

Specializes in the analysis of complex groundwater flow systems for industrial and government clients. Lists past projects.

Specializes in ground water flow system analyses, contaminant transport and computer modeling. Pictoral and VRML examples of past projects listed.

Consulting in hydrogeology, environmental geology, groundwater and surface water supplies, well testing, water quality, testing, contaminants, geophysics, geochemistry, aggregates, exploration. Peterborough, Ontario, Canada.

Provides drilling, ground water engineering and hydro geological consultancy services. Located in Chesterfield, UK.

Offers services in hydrogeologic and geotechnical studies, site design, environmental site assessments, and related fields. Based in Spokane, Washington, USA.

Water resources and environmental consulting firm based in Seattle, Washington.

Offers development and operation of groundwater control and remediation systems through the world. Describes capabilities and past projects. Offices in Suffolk, Derbyshire and County Durham, UK.

Specializes in geoscience investigations and regulatory compliance issues, focusing on coastal models and regulatory compliance.

California firm specializing in geologic and hydrogeologic investigations, assessment, corrective actions, remediation and related services. Lists current projects.

Hydrology, engineering, and environmental consulting services, specializing in water rights, regulatory compliance, property development, litigation support, and site specific problem solving. Describes personnel and services. Located in Kalispell, Montana.

Western Australia firm. Service areas include locating and developing ground water supplies, mine dewatering, and groundwater contamination control.

Services in groundwater exploration, recharge, rain water harvesting, roof water harvesting, and tube well drilling. Based in India.

Specializes in groundwater monitoring, phase I and II site assessments, mold sampling, and TCEQ corrective action. Located in The Woodlands, Texas.

Provides a full range of geotechnical and environmental engineering services. Lists clients and past projects.

Performs investigations and planning in water supply hydrogeology and ground water quality, microbiology, and well maintenance for environmental studies and public water supply. Ohio, USA.

Specializes in routine compliance, monitoring, investigation and remediation associated with 40 CFR Subtitle D landfill properties. Located in Houston, Texas.

Arizona hydrogeology consultancy company offering services in water-supply studies, well design, artificial recharge, contamination investigations, and other applications. Includes staff and project profiles.

Services include site investigation, groundwater studies, air quality control, risk assessment, solid waste management, and pollution prevention. Located in Idaho, USA.

Specializes in phase I and II environmental site assessments, underground storage tank (UST) closures, remediation support, and subsurface analysis. Located in Charleston, South Carolina, USA.

Consultant hydrogeologist and groundwater specialist providing assessment and modelling for borehole siting, advice on contamination and pollution avoidance, and reports for regulatory bodies. Based in the UK.

New Mexico- based hydrology and water resources firm specializing in evaluations, management, water rights administration and water quality management.

Provides groundwater prospecting employing fracture trace analysis and high resolution electrical resistivity (ER) imaging.

Groundwater resource management, hydrogeology, geology, hydrology, drinking supply wells, groundwater modeling, geostatistics, risk assessment, landfills, dewatering, and environmental monitoring. Located in Berkeley, CA.

Specialities include ground and surface hydrology, numerical code development, water rights, and risk assessment. Located in Boulder, Colorado.

Groundwater and environment division of UK food and drink consultancy. Services include hydrogeology, hydrochemistry and environmental assessment related to groundwater for bottling and other uses.

Provides environmental, health, and safety services to industry and government. Located in Texas and Maryland, USA.