1. MAPPING, INVESTIGATION

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1. MAPPING, INVESTIGATION

In the field of hydrogeology, the Division for Water Resources Planning and Investigation for the South of Vietnam has a capacity to execute the following work:

1. Mapping

- Hydrogeological maps on the different scales from 1/25.000 to 1/500.000

- Hydrogeochemical Maps

- Maps of studied groundwater points

- Map of the groundwater exploitation status

- Map of practical document

- Map of groundwater exploitation prospects

- Map of groundwater exploitation planning

- Groundwater vulnerability map

2. Forming, submitting for approval, executing, reporting and asking for permission to implement all kind of hydrogeological projects:

- Project on hydrogeological mapping

- Project on evaluation of groundwater source

- Project on groundwater exploration

- Project on groundwater exploitation

- Project on asking for permission of groundwater exploitation

- Project on applying informatics in groundwater resources management

- Project on design, construction, operation and maintenance of groundwater regime monitoring network

- Project on hydrogeological investigation for design of dewatering system

3. Drilling observation, exploration and exploitation wells

- Investigating, designing and executing of observation wells having diameters from 60mm to 130mm and with depths from several tens to 650m

- Investigating, designing and executing of exploration wells having diameters from 90mm to 168mm and with depths from several tens to 650m

- Investigating, designing and executing of exploitation wells having diameters from 90mm to 600mm and with depths from several tens to 650m

4. Research on special subjects

- Formulation of chemical components and origin of groundwater

- Calculation of hydrogeological parameters based on pumping test data

- Design of dewatering system during building construction

- Methods of groundwater artificial recharge and their applicability

- Planning of exploitation, use, protection and development of groundwater resources

- Application of groundwater flow models and transport contaminants models in management, protection and development of groundwater resources

- Assessment of natural recharge from rainfall to groundwater

- Quality status and forecast of changes in groundwater quality

- To optimise groundwater regime monitoring network

- Storm harvesting management

5. Application of professional software

a. Aquifer test

- Graphical analysis and reporting of pumping test and slug test data!

- Giving you all the tools you need to efficiently manage hydraulic testing results and provide a selection of the most commonly used solution methods for data analysis

b. Aquachem

- Allows the user to plot data, perform common statistical analyses, and create simple reports. The chemistry of water from different wells can be compared in formats such as ternary, Piper, and Stiff diagrams...

- AquaChem can produce saturation indices using a built-in basic version of the USGS PHREEQC geochemical model.

- Statistical tools include trend analysis, normality tests, and evaluation of correlation between parameters.

- AquaChem is a useful tool for interpreting data and identifying trends in the data.

c. RockWork

- RockWorks2002 contains an all-new borehole data manager for easy entry of downhole data: geophysical or geochemical measurements, observed lithologies, stratigraphic contacts, water levels, fractures, as well as downhole well surveys.

- It displays point and contour maps, logs, cross sections, and profiles. It displays logs, surfaces, thickness models, fence diagrams, and solid models

- RockWorks2002 also contains an entire array of general geological utilities for basic gridding and contouring, solid modeling, volumetrics, hydrology and hydrochemistry tools (drawdown & flow diagrams, Piper and Stiff diagrams), 2D and 3D feature analysis (rose and stereonet diagrams, lineation maps and densities), statistical computations and diagrams.