cleaning of sr and cwr at various industrial areas , abu road and sirohi . cleaning , mechanized dewatering , desilting and removal of left over dirty water sludge with a sludge removal pump then cleaning of wall , ceiling and floor by high pressure water jet with the help of equipment which creates a pressure of 100-150 bar , removal of remaining sludge from the floor with the help of industrial vaccum cleaner , spraying of non toxic , bio degradable , eco friendly anti bacterial agent certified by a govt . approved laboratory to disinfect the tank of all harmful pathegons , the dose utilixed should be safe as per the oecd guidlines 423 adopted on 17th december 2001 :- ( necessary certificate should be attached ) treatment of inside tank by exposing . the whole work should be done in the presence of riico water supply staff . complete operation work submitted with the certificate of chemical used and by video cd . clear water reservoir/over head reservoir