pwrjt21005/annual rate contract for sweet potable water supply at mt girnar complex and gangotri complex indian oil residential colonies rajkot annual rate contract for sweet potable water supply at mt girnar complex and gangotri complex indian oil residential colonies rajkot , composite items , supply of sweet potable water , during during summer season ( march , april , may , june ) , during non - summer season ( january , febuary , july , august , september , october , november , december ) , raw and sweet potable water testing , raw and sweet potable water testing ( color , odor , ph , taste , turbidity , tds , hardness , alkalinity , ionic surface-active agent such as ca , cl , fe , mg , no3 , c6h5oh , so4 , etc . ) as per instructions of eic . ,