The DRASTIC Index Calculator is a QGIS plugin designed to evaluate the potential pollution risk of groundwater in a specific area. It calculates the DRASTIC index by considering seven key environmental factors:
- Depth to water
- Net Recharge
- Aquifer media
- Soil media
- Topography
- Impact of the vadose zone
- Hydraulic Conductivity of the aquifer
This plugin is particularly useful for environmental scientists, researchers, and policymakers involved in groundwater management and protection, providing an integrated solution within the QGIS environment.
- QGIS Integration: Seamlessly works within QGIS, leveraging its powerful geospatial capabilities.
- Comprehensive Analysis: Evaluates groundwater pollution risk based on multiple environmental factors.
- User-Friendly Interface: Easy-to-use interface for inputting data and interpreting results directly in QGIS.
- Flexible Input Options: Supports various data formats for input, making it adaptable to different data sources.
- Detailed Output: Provides detailed output and visualizations within QGIS to help understand the results.
To get started with the DRASTIC Index Calculator plugin for QGIS, follow these installation steps:
-
Open QGIS and go to the Plugins menu.
-
Manage and Install Plugins:
- Select
Manage and Install Plugins...
from the Plugins menu. - In the Plugins dialog, go to the
Settings
tab and ensure that the option to show also experimental plugins is checked (if applicable).
- Select
-
Install the Plugin:
- Go to the
All
tab and search forDRASTIC Index Calculator
. - Select the plugin from the list and click on the
Install Plugin
button.
- Go to the
-
Restart QGIS to activate the plugin.
Here's how you can use the DRASTIC Index Calculator plugin in QGIS:
-
Prepare Your Data: Ensure your environmental data is prepared in the required format and loaded into QGIS.
-
Access the Plugin:
- Once installed, you can find the DRASTIC Index Calculator in the QGIS Plugins Toolbar or under the Plugins menu.
-
Run the Calculator:
- Open the plugin interface from the toolbar or menu.
- Follow the on-screen instructions to select your input layers and parameters.
- Click
Run
to calculate the DRASTIC index.
-
View the Results: After processing, the results will be displayed as a new layer in QGIS. You can explore the output layer and use QGIS tools for further analysis and visualization.
We welcome contributions to the DRASTIC Index Calculator plugin! If you would like to contribute, please follow these steps:
-
Fork the Repository: Create your own fork of the repository to make changes.
-
Create a Feature Branch: Develop your feature or bug fix in a separate branch:
git checkout -b feature/your-feature-name
This project is licensed under the GNU General Public License (GPL) version 3.0. See the LICENSE file for more details.
Aller, L. (1985). DRASTIC: A Standardized System for Evaluating Ground Water Pollution Potential Using Hydrogeologic Settings. Robert S. Kerr Environmental Research Laboratory, Office of Research and Development, US Environmental Protection Agency.
If you use this software, please cite it using the information provided in the CITATION file or use the following reference:
Pereira, G. (2025). Drastic methodology in format of plug-in in QGIS (Version 1.0.3) [Computer software]. https://github.com/pereira-barbosa-goncalo/Drastic
@software{Pereira_Drastic_2025,
author = {Pereira, Gonçalo},
title = {Drastic methodology in format of plug-in in QGIS},
version = {1.0.3},
date = {2025},
url = {https://github.com/pereira-barbosa-goncalo/Drastic}
}