Advanced Geoscience, Inc.

AdvancedGeoscience.com            Los Angeles, California USA

Telephone +1 (310) 378-7480    Reno, Nevada

Services

Groundwater Exploration and Well Location Surveys

Geophysical Survey Procedures Used for Groundwater Exploration:

Seismic Reflection and Refraction Tomography Surveys

• Investigation of Groundwater Basin Structure and Hydro-Stratigraphy
• Location of Permeable Groundwater Layers and Fractures within Bedrock Units
• Location of Permeable Bedrock and Alluvial Channels
• Delineation of Groundwater Barriers

Electrical Resistivity Profiling- Using Direct Current and Transient Electromagnetic (TEM) and Methods

• Investigation of Hydro-Stratigraphy and Groundwater Quality
• Location of Permeable Groundwater Layers and Fractures within Bedrock Units
• Location of Permeable Bedrock and Alluvial Channels
• Delineation of Groundwater Barriers
• Develop Model of Subsurface Resistivity Layering at Producing Well Site

Borehole Geophysical Logging- Using Gamma, EM Conductivity, and Electric Logs

• Investigation of Borehole Area Lithology
• Location of Permeable Groundwater Intervals for Well Design
• Evaluation of Groundwater Quality

Hydrogeologic Investigations Conducted with Geophysical Surveys:

Research Geology and Groundwater Data from Area Wells- Use Online Data Available from Government

                                                                                                                         and Private Water Agency Sources

• Investigation of Groundwater Aquifers in Area, Sources of Recharge, and Water Quality
• Evaluation of Subsurface Geologic Units at Proposed Well Site
• Evaluation of Maximum Well Pumping Rates and Drawdown (Well Yields and Specific Capacity)
• Prepare “Hydrogeologic Cross Section” Based on Well Data and Geophysical Survey Results
• Develop “Analog Model” for Expected Aquifer Conditions at Producing Well Site
• Search for Conditions Similar to Analog Model on Geophysical Profiles Across Site

Limited Field Testing on Area Wells-  Measuring Static and Pumping Water Levels, Pumping and Drawdown

          Recovery Rates, Slug Tests, and Water Quality Parameters

• Evaluation of Maximum Well Pumping Rates and Drawdown (Well Yields and Specific Capacity)
• Evaluation of Well Transmissivity and Aquifer Storage Coefficient
• Investigation of Groundwater Quality (Salinity and Hardness)