Mithapur, being a water scarcity region, uses spent cooling seawater instead of raw water for dilution of HCT underflow. Per day approx. 2700 KL of seawater is consumed in the plant.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/water-management-tata-chemicals-mithapur-gujarat
[2] http://admin.indiaenvironmentportal.org.in/category/author/najmul-hasan-khan
[3] http://admin.indiaenvironmentportal.org.in/category/journal/everything-about-water
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/chemical-industry
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-management
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wastewater-recycling
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/gujarat