About HYDROQUALIX-4™

HYDROQUALIX-4™ is an integrated spreadsheet-based analytical platform developed for the automated assessment, evaluation, and classification of water quality across diverse hydrological environments. The system enables rapid computation of multiple internationally recognized Water Quality Index (WQI) methodologies within a unified analytical framework, reducing manual calculation efforts and improving consistency, transparency, and reproducibility in water quality assessments. The platform enables researchers, students, and water resource professionals to efficiently evaluate drinking water, river water, spring water, groundwater, and watershed health through a standardized and reproducible workflow.

Designed with a particular focus on Himalayan water systems, HYDROQUALIX-4™ supports applications in water quality monitoring, spring-shed management, watershed studies, climate-resilient water resource planning, and government water assessment programs, including the Jal Jeevan Mission. The software integrates five widely used WQI methods-Weighted Arithmetic Water Quality Index (WAWQI), National Sanitation Foundation Water Quality Index (NSF-WQI), Oregon Water Quality Index (OWQI), Canadian Council of Ministers of the Environment Water Quality Index (CCME-WQI), and Overall Index of Pollution (OIP)-within a single spreadsheet environment.

This initial public release (Version 1.0) aims to facilitate transparent, rapid, and user-friendly water quality analysis for research, education, and environmental management purposes.

AI Assistance: Documentation and text refinement were assisted using the Google Gemini API; all research, methodology, software development, and validation were conducted by the developer.

Software Citation

Kumar, N. (2026). HydroQualix-4 Tool: Multi-Method Water Quality Index (WQI) Automation Engine (Version 1.0). POLIPIXEL LAB, Department of Geography, School of Earth Sciences, Hemvati Nandan Bahuguna Garhwal University (A Central University), Srinagar Garhwal, Uttarakhand, India. Available at:  HYDROQUALIX  (Portal)

Academic Citation

Kumar, N. (2026). HYDROQUALIX-4™: Multi-Method Water Quality Index (WQI) Automation Engine (Version 1.0). POLIPIXEL LAB, Department of Geography, School of Earth Sciences, HNBGU. Zenodo. https://doi.org/10.5281/zenodo.20616816.

Copyright © 2026 POLIPIXEL LAB

HYDROQUALIX-4™

POLIPIXEL LAB
Department of Geography
School of Earth Science
Hemvati Nandan Bahuguna Garhwal University
(A Central University), Srinagar (Garhwal), Uttarakhand-246174

All Rights Reserved.

The HYDROQUALIX-4™ software architecture, automation framework, source code, user interface, workflow design, visualization components, database schema, and documentation constitute original intellectual property. HydroQualix-4™ applies established Water Quality Index methodologies from published scientific literature. Ownership and scientific credit for the underlying WQI methodologies remain with their respective authors and institutions.