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American Public Health Association, Eaton, A.D., American Water Works Association and Water Environment Federation (2005) Standard Methods for the Examination of Water and Wastewater. APHA-AWWA-WEF, Washington, DC.

has been cited by the following article:

• TITLE: Seasonal Variation in Physicochemical Properties of Groundwater, a Case Study of Kamiti-Marengeta Subcatchment Kiambu, Kenya

  AUTHORS: Miriam Judith Adongo, Mary Kalibala Makokha, Joy Apiyo Obando, Jacob Odhiambo Ochieng

  KEYWORDS: Groundwater, Water Quality, Seasonal Variation

  JOURNAL NAME: Journal of Water Resource and Protection, Vol.14 No.2, February 15, 2022

  ABSTRACT: The seasonal variation and quality status of groundwater systems of Kamiti-Marengeta sub-catchment were evaluated through analysis of boreholes and 17 shallow wells water samples in May 2016 and September 2017. Consequently, the results were compared against the Kenya Bureau of Standards (KEBS) and World Health Organization (WHO) guidelines for drinking water purposes, and its suitability for drinking was established. The results showed that turbidity, calcium, potassium, iron, and fluoride levels in some of the boreholes and pH, calcium, sodium, and iron levels in some shallow wells exceeded the KEBS and WHO standards for drinking water quality. Turbidity, dissolved oxygen, and total hardness significantly varied across the regions of the study, and one-way ANOVA (P