REPAIR/MAINT TO STP EQUIPMENTS, PIPE LINES, CONTROL PANELS AND ALLIED WORKS AT KUNJATHBAIL UNDER AGE (I) MANGALORE

M/L for cleaning of Oil and Grease chamber, Screening Bar and Centifuge filter press and cleaning on weekly basis of Sewage Treatment Plant of capacity 200 KLD at CGRA Kunjathbail for (electrically operated containing the machinery of following capacity through out including cleaning the pumping sets, DG sets, control panel, pump house building and removal of vegetation upto 10 mtr arround the installation as and when required including providing and maintaining the log sheet for pump sets and Engine all as specified and as directed. Note :- (i) All chemicals required for smooth functioning of STP shall be measured and paid separately under appropriate items as mentioned below. (ii) Cleaning of Oil and Grease chamber, Screening Bar and Centifuse filter press and removal of cake shall be carried out by one helper/sweeper employed.

M/L in collection of dried sludge cake from the all chamber upto to the sand level once in a month and disposed of safly in suitable place not more than 50 KM form STP CGRA Kunjathbail complete all as specified and as directed.

Collecting the waste water/effluent sample monthly from STP after treatment, sample handling, transporting to NABL accredited lab approved by authorities, carry out the analysis of the following latest IS method complete all as specified and as directed. (i) BOD (Bio chemical Oxygen Demand) (ii) COD (Chemical Oxygen Demand) (iii) TSS (Total Suspended Solids) (iv) Total dissolved solids (v) Turbidity (vii) PH.

Supply only Sodium hypochlorite Calcium based, high strength chlorination chemical for water disinfectant in any form granular or in liquid form in factory sealed HDPE container (45/50 Kg each ), chlorine concentration level 40-60% 65-70 % and delivered at STP complete all as specified and as directed

M&L for cleaning the Raw sewage collection RCC sump of size 5.6 m x 4.1 m x 2.0 m once in 6 months.The cleaning includes (a) Dewatering the sump with portable submersible pump. (b) Removal of left over dirty water and sludge with a special sludge removal pump. (c) Removal of remaining sludge from the floor with the help of industrial vacuum Cleaner. (d) Spraying of Non-toxic, bio-degradable, eco-friendly anti-bacterial agent, to disinfect the tank from all harmful pathogens. complete all as specified and as directed

M&L for cleaning internaly MS Activated carbon filter / MS Dual media filter of size 1000 mm dia and 1500 mm height for removing the filter media by brushing with nylon brush and using bleaching powder and cleaning of existing pipe holes after refilling of new filter media complete all as specified and directed.

M&L for cleaning of underground sewage treated water sump 60000 ltr by using pump set or bucket & mug etc, Removing muds, silt sand etc from inside of tank and depositing in pit (depth of pit not less than 1.5 mtr) to a distance n.exc 50 mtr from tank including exacavation of suitable size of pit and returning, filling etc cleaning of tank with water, Removing moulds, moss,foreign materials etc from the internal surfaces of tank and from the mouth of pipe by scrapping with steel brushes or steel scrapping, disposing off waste materials to a distance n.exc 50 mtr and cleaning the internal surface with clean water. Spreading the thin layers of bleaching powder over the entire internal surface area of tank internally and washing with clean water. Applying one coat of lime wash to the internal surfaces and applying two acrylic exterior emlonson paint to the external surfaces of sump complete all as specified and as directed.

All as per item No 7.00 above but cleaning of sewage treated water tank 12000 ltr complete all as specified and as directed.

M&L opening and servicing / overhauling of non - clogging sewage submersible pumping set of 2 HP capacity and transportation to workshop, dismantlng of pumping set complete segregating the serviceable parts for re-use and removing the defective parts such as bearing, water seal, casing king key, glands etc, repair the pump throughly including machine work re-assembling the pump set, making all electrical connection and commssioning testing complete on full load to the entire satisfaction complete all as specified and as directed.

M&L for dismantling the Non - clogging sewage submersible pumping set of 2 HP capacity and taking out the burnt motor from beds, transporting to civil work shop,removing the burnt /old defective winding and Rewinding the motor with same gauge supper enamelled copper wire of good insulation, varnishing, heating/drying and reassembling the motor and transporting to site , refixing and connecting the electrical connection, testing and commissioning all as specified and as directed.