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Block wise categorization of groundwater quality in Inland region of Tirunelveli and Tenkasi district for its optimal usage to minimize the soil salinity was undertaken during November 2020. A total of 87 underground water samples representing different Inland blocks viz., Palayamkottai (5), Cheranmahadevi (5), Kalakkadu (6), Ambasamudram (8), Tenkasi (5), Shencottai (5), Kadayanallur (5), Vasudevanallur (7),Sankarankoil (6), Keezhapavur (5), Kadayam (4), Pappakudi (4), Alangulam (5), Melaneelithanallur (5), Kuruvikulam (6) and Manur (6) were collected, analyzed for quality parameter and categorized into different water quality as per the standard procedure. The investigation revealed that groundwater samples with respect to pH and EC ranged from 6.50 to 8.10 and 0.77 to 6.91 dS m-1, respectively. Residual Sodium Carbonate (RSC) varied from nil to 9.40 meq L-1 and Sodium Adsorption Ratio (SAR) ranged from 0.34 to 9.46. Frequency of occurrence of good quality water in the blocks surveyed were in the order of Kalakkadu and Pappakudi (100%)> Ambasamudram (87.5%)> Cheranmahadevi (80%)> Alangulam (80%)> Sankarankoil (66.6%)> Tenkasi (60%)> Shencottai (60%)> Kadayanallur (60%)>
Melaneelithanallur (60%)> Kadayam (50%)> Manur (49.98%)> Vasudevanallur (42.84%)> Kuruvikulam (33.32%) based on the CSSRI, Karnal water quality classification in Inland blocks of Tirunelveli district, 20 per cent of groundwater samples were in good quality, Saline water was found in Palayamkottai. Alkali water was found in Tenkasi, Manur, Kadayam, Kuruvikulam and Ambasamudram blocks to the extent of 20, 16.6, 25, 16.6 and 12.5 per cent respectively. Among the Inland blocks of Tirunelveli districts surveyed, Keezhapavur block falls under high Alkali (40%) and lowest good quality of groundwater (20%).
Keywords:
Groundwater quality, Tirunelveli district, SAR and RSC
Cite Article:
"Assessment of groundwater quality in inland blocks of Tirunelveli &Tenkasi District of Tamil Nadu", International Journal for Research Trends and Innovation (www.ijrti.org), ISSN:2455-2631, Vol.7, Issue 8, page no.1856 - 1862, September-2022, Available :http://www.ijrti.org/papers/IJRTI2208281.pdf
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2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator