GIS-based information support technology for drinking water quality control

Addresses the issues of creating of a geoinformation system for assessing the quality of drinking water in a centralised domestic drinking water supply. The created system allows to systemise heterogeneous data, analyse it, and quickly represent the current environmental situation on the map. The algorithm is based on the methodology for assessing the quality improvement of drinking water, developed by Rospotrebnadzor in 2019. The algorithm allows for an integral assessment of a group of indicators, including various classes of substances (chemical, bacteriological, parasitic). The analysis is made for each observation point for a time period equal to a year. The assessment is made for each class of substances, resulting in marking water samples as high-quality or non-high-quality. Algorithm was implemented in Python using NumPy library. The resulting script represents a tool that is part of the ArcToolbox suite and runs in the ArcGIS for Desktop environment. The algorithm was tested on the existing water quality monitoring data in the Leningrad region. Thematic maps were designed based on the results of the analysis in GIS (geoinformation system) ArcGIS for Desktop. The maps clearly represent the existing ecological situation.

Authors: N. I. Kurakina, I. G. Belkin

Direction: Informatics, Computer Technologies And Control

Keywords: drinking water supply, GIS, Water quality, Integral assessment, Environmental monitoring

---

View full article