Groundwater quality assessment by WQI and GIS tools in the villages of Bukkapatnam Mandal, Anantapur district, Andhra Pradesh (India)

Authors

  • K.M.Ganesh Dept. of Chemistry, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Puttaparthi, Anantapur District, Andhra Pradesh, India
  • G Suryanarayana Environmental Protection Training and Research Institute, Hyderabad, Telangana State, India
  • Chelli Janardhana Dept. of Chemistry, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Puttaparthi, Anantapur District, Andhra Pradesh, India

Keywords:

fluoride, nitrate, TDS,GIS,WQI,Bukkapatnammandal

Abstract

Groundwater is the main source for drinking water all over the world. With the ever rising demand caused by
agriculture and industry, the quality and quantity of groundwater has fallen down to a critical level. Regular water quality
monitoring and management of water supply is emerging as a major engineering application today .Water quality
index(WQI) is a special tool that represents the combined influence of individual water quality parameters on the overall
quality of water, determining its suitability for human consumption. The Geographical Information System (GIS) also
provides a unique platform forwater quality assessment as it stores, analyzes and displays spatial data which aids in quick
and effective decision making for the environmentalists and policy makers.The main purpose of this study was to monitor,
evaluate and classify the water type based on WQI and GIS mapping to assess the drinking wate r quality in Bukkapatnam
Mandal, Anantapur District, Andhra Pradesh which belongs to the rain-shadow region of Rayalseema belt. The water
samples were collected from the bore-well and the results of the physico-chemical analysis were compared with the drinking
water standards set by the World Health Organization (WHO) and the Bureau of Indian Standards (BIS). The range of
physiochemical parameters observed for groundwater were pH (7.44 to 8.27), Total Dissolved Solids (185 to 1570 mg/l),
Total Alkalinity(100.58 to 684.80 mg/l), Total hardness(145 to 990 mg/l), Electrical conductivity(288.6 to2949.2µS ),
fluoride (1.45 to 7.21 mg/l), nitrate (0.72 to190.79 mg/l),sulphate (11.30 to 438.39mg/l), chloride( 9.02 to 723.93 mg/l),
phosphate(0 to 7.88 mg/l ), sodium(19.93 to 318.79 mg/l), potassium (0.39 to 11.49 mg/l), calcium(4 to 240.03mg/l ),
magnesium(11.86 to 61.12 mg/l ), iron(0.023 to 0.125 ppm) during this study. The latitude and longitude of the sampling
location were taken to develop geospatial maps on GIS plat form. Water quality index was calculated and the result revealed
that 92% of the groundwater in the region was unfit for drinking purpose without appropriate pre-treatment.

Published

2015-04-25

How to Cite

K.M.Ganesh, G Suryanarayana, & Chelli Janardhana. (2015). Groundwater quality assessment by WQI and GIS tools in the villages of Bukkapatnam Mandal, Anantapur district, Andhra Pradesh (India). International Journal of Advance Engineering and Research Development (IJAERD), 2(4), 537–544. Retrieved from https://ijaerd.com/index.php/IJAERD/article/view/697