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Updated: Jun 24, 2026
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Continuous Hydrologic and Water Quality Monitoring of Vernal Ponds
Published on: November 13, 2017
Development of groundwater quality index.
Mohesn Saeedi1, Ozeair Abessi, Farid Sharifi
1Department of Hydraulics and Environment, School of Civil Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran. msaeedi@iust.ac.ir
Environmental Monitoring and Assessment
|March 19, 2009
Summary
A new groundwater quality index (GWQI) was developed to assess drinking water suitability in Iran's Qazvin province. Two areas were identified with groundwater quality comparable to mineral water, aiding regional water management.
Area of Science:
- Environmental Science
- Hydrogeology
- Water Resource Management
Background:
- Water quality assessment is crucial for land use and water resource planning.
- A Water Quality Index (WQI) simplifies complex water quality data into a single, representative value.
- Developing a specific Groundwater Quality Index (GWQI) is essential for targeted management.
Purpose of the Study:
- To develop a simple, multivariate-based methodology for a Groundwater Quality Index (GWQI).
- To identify areas with the best groundwater quality for drinking purposes in Qazvin province, Iran.
- To compare derived GWQI values with established mineral water standards.
Main Methods:
- A GWQI was calculated using the average values of eight cation and anion parameters from 163 wells over three years.
- Normalized values for each parameter were determined by comparing observed concentrations to maximum allowable limits.
- Parameter weights were incorporated to compute the final GWQI for each well.
Main Results:
- A GWQI map was created for the Qazvin province, illustrating groundwater quality distribution.
- Groundwater quality in two specific areas was found to be extremely close to that of mineral water.
- The developed index provides a clear, interpretable overview for regional decision-makers.
Conclusions:
- The developed GWQI methodology effectively assesses groundwater quality for drinking purposes.
- The study identified specific locations with high-quality groundwater suitable for consumption.
- The GWQI maps serve as valuable tools for informed regional water resource planning and management.
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