Student Research Reports

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This study analyzed the water quality in the Kaeng Don Klang area and assessed its suitability for community use. Water samples were collected from five different locations: the upstream, midstream, downstream, and the mixed area between the midstream and downstream. Physical and chemical parameters of the water were measured, including temperature, dissolved oxygen (DO), electrical conductivity (EC), pH, and salinity. The water temperature ranged from 24.1–28.9 degree, with the highest temperature at the upstream and the lowest in the upstream-midstream mixture. Dissolved oxygen (DO) ranged from 4.69–7.71 mg/L, with the highest value at the downstream and the lowest in the midstream-downstream mixture. The electrical conductivity of the water ranged from 153–345 μS/cm, with the highest value in the midstream-downstream mixture and the lowest in the midstream. The pH of the water ranged from 6.06–6.17, which is in the slightly acidic range, with the highest pH in the downstream and the lowest in the upstream. While salinity ranged from 101–345 ppm, with the highest salinity in the midstream and midstream mixing areas and the lowest in the downstream area. The overall water quality assessment revealed that the water quality in the Kaeng Don Klang area was mostly within acceptable limits for community use, especially in the upstream and midstream mixing areas where the water quality was similar to the natural environment. This project is therefore useful in providing basic information about water quality and can be used as a guideline for maintaining and conserving community water resources to ensure good and sustainable quality in the future.