Abstract

The present study’s primary goal is to assess drinking and irrigation water quality in semi-arid areas of Andhra Pradesh, India.
Thirty groundwater samples have been taken from bore wells and dug wells and analyzed for physicochemical parameters.
The results revealed that all the water samples in this research area are alkaline. The water quality index (WQI) and a spatial
appraisal of groundwater using a geographic information system-based interpolation method are some of the techniques used
to examine and explain water quality in the study area. WQI levels range from 53.34 mg/L to 129.14 mg/L, suggesting that
67% of samples are safe to drink and 33% are not. To improve the health consequences of drinking groundwater, adequate
water purity treatment is required before use. Based on the USSL diagram, the majority of the samples 83% fall in the C3S1
field, 14% in the C4S1 field, and 3% in the C4S2 fields which denotes very high salinity and medium sodium hazard limit its
moderate suitability for irrigation. Regarding the Wilcox categorization, 77% of groundwater samples are good to acceptable,
17% are uncertain to inappropriate, 3% are permissible to doubtful, and 3% are unsuitable for irrigation. Furthermore, according
to sodium absorption ratio, percentage sodium, residual sodium carbonate, magnesium adsorption ratio, and Kelley’s ratio, the
majority of groundwater samples are moderately appropriate for irrigation.