• Hari Ramavath
• Panduranga Reddy Inavole

Groundwater is an important natural resource, the core of the ecosystem, and a necessary factor for human survival. The objective of the study to evaluate the groundwater quality through hydrogeochemical investigations in a fluoride endemic region. A total of 34 groundwater samples are collected from Nellikal watershed and analyzed for physicochemical parameters and major ions using APHA standard methods. The abundance of major ions following the order, anions: HCO3->Cl->NO3-> SO42-> F- and cations: Na+> Ca+2> Mg+2> K+ respectively. Results reveal that nitrate concentrations are beyond the WHO permissible limits in 44% of the samples. Agriculture fertilizer wastes leaching might be one of the significant sources of nitrate contamination in groundwater as the study region is dominant with agricultural activities. However, 11% of samples found fluoride concentration above highest desirable limit BIS standards for drinking purposes. These findings suggest that the proper treatment is required before supply to the public to protect their health.

Groundwater quality, Hydrogeochemistry, WHO permissible limits, Nellikal Watershed, Telangana

"Assessment of Groundwater Quality for Drinking and Domestic Purposes of Nellikal Watershed, Nalgonda District, Telangana, India", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 1, page no.a472-a479, January-2022, Available :http://www.jetir.org/papers/JETIR2201063.pdf

"Assessment of Groundwater Quality for Drinking and Domestic Purposes of Nellikal Watershed, Nalgonda District, Telangana, India", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 1, page no. ppa472-a479, January-2022, Available at : http://www.jetir.org/papers/JETIR2201063.pdf