Systematic Assessment and Analysis of Drinking Water Quality in a Typical Sub-new Residential Area in Guangzhou

Yue Lei

doi:10.54097/f1gzm397

Authors

Yue Lei

DOI:

https://doi.org/10.54097/f1gzm397

Keywords:

Sub-new residential area, drinking water quality, water quality management.

Abstract

The safety of drinking water quality is crucial for public health and social stability. This study systematically assessed the tap water quality in a typical sub-new residential area in Guangzhou, comparing different water supply modes. Five sampling points were established in villa and high-rise areas to analyze key indicators including chromaticity, turbidity, pH, total hardness, total dissolved solids, chloride, and permanganate index. Results indicated that the drinking water quality generally met the Sanitary Standard for Drinking Water (GB 5749-2022). However, the turbidity at the outlet of the secondary water supply system reached 1.2 NTU, exceeding the standard limit. Further analysis revealed that organic matter content and turbidity within the residential area were significantly higher than at the municipal control point. Total dissolved solids and organic matter levels increased notably in morning samples due to pipeline detention effects. The villa area exhibited greater water quality fluctuations compared to the high-rise area, likely due to its pipe network structure and hydraulic conditions. This study provides a scientific basis and practical recommendations for refined water supply management and water quality risk prevention in similar residential areas.

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