REPAIR / MAINTENANCE OF EXTERNAL WATER SUPPLY, PIPELINE, FIREFIGHTING, FIRE HYDRANTS, PUMP SETS AND OTHER MISC WORKS SYSTEM AT NMRL AMBERNATH

Material and labour for cleaning and removing all scales and dirt etc, from PVC tanks of capacity exc 250 Ltrs and n. exc 500 Ltrs from mouth by emptying, drying, cleaning by scrubbing the dust with wire brush, after removing inlet and out let pipes (also cleaning the mouths of circulating pipe) and refixig including writing date of cleaning with synthetic enamel white paint in proper format as directed by Engr-in-Charge.NOTE: (i) All inlet and outlet pipes are to be checked properly any leakage during the cleaning of tanks all as specified and as directed.(ii) If float valve broken at the time of cleaning the contractor has to replace it without any extra payment.

As per item No 1 above but of capacity 500 Ltrs but n. exc 1000 Ltrs. NOTE: (i) All inlet and outlet pipes are to be checked properly any leakage during the cleaning of tanks all as specified and as directed.(ii) If float valve broken at the time of cleaning the contractor has to replace it without any extra payment.

As per item No 1 above but of capacity 2000 Ltrs but n. exc 10000 Ltrs NOTE: (i) All inlet and outlet pipes are to be checked properly any leakage during the cleaning of tanks all as specified and as directed.(ii) If float valve broken at the time of cleaning the contractor has to replace it without any extra payment.

Material and labour for Cleaning of RCC under ground sump of following capacity by removing sludge, mud or any other foreign material from the bottom and internal wall surface of tank by means of wire brush and spraying of cleaned fresh water, bailing out accumulated dirty water inside the tank with pump sets, removal of deposited muds and other sediments, washing of internal surface with sufficient quantity of mixture in suitable proportion (0.10 Kg of bleaching powder will be mix in 1.0 litre water), finally applying two coats of lime washing on entire internal surface of walls,allowing applied coat to become dry and wait for confirmation from MES Staff , writing the date of cleaning and capacity of tank with white synthetic enamel paint on black background with synthetic enamel paint complete all as directed by Engineer-in-charge for the following locations :- (a) Main Gate Pump House No 3 (2.25 Lakh Ltr)

(b) Pump House No 1 (2 Lakh GLN)

(c) Near MI Room (Semi Circulation 75 Thousand)

Material and labour for Cleaning of RCC over head water tank of capacity 1.0 Lakh GLN at 25 metre height by removing sludge, mud or any other foreign material from the bottom and internal wall surface of tank by means of wire brush and spraying of cleaned fresh water, bailing out accumulated dirty water inside the tank with pump sets, removal of deposited muds and other sediments, washing of internal surface with sufficient quantity of mixture in suitable proportion (0.10 Kg of bleaching powder will be mix in 1.0 litre water), finally applying two coats of lime washing on entire internal surface of walls,allowing applied coat to become dry and wait for confirmation from MES Staff , writing the date of cleaning and capacity of tank with white synthetic enamel paint on black background with synthetic enamel paint complete all as directed by Engineer-in-charge for the following locations:- (a) Near Power House No 1 OHT

Material and labour for Cleaning of RCC under ground sump reservoir/SWT 2.25 /2.0 Lakh capacity (Fire Static Tank Capacity by removing sludge, mud or any other foreign material from the bottom and internal wall surface of tank by means of wire brush and spraying of cleaned fresh water, bailing out accumulated dirty water inside the tank with using Sludge pump sets, removal of deposited muds and other sediments, washing of internal surface with sufficient quantity of mixture in suitable proportion (0.10 Kg of bleaching powder will be mix in 1.0 litre water), finally applying two coats of lime washing on entire internal surface of walls,allowing applied coat to become dry and wait for confirmation from MES Staff , writing the date of cleaning and capacity of tank with white synthetic enamel paint on black background with synthetic enamel paint complete all as directed by Engineer-in-charge for the following locations:- (a) Near Power House No 1 / Old Tech area (Round Type)

(b) Near HHF SWT Sump (Round Type)

Testing of potable water sample collected from NMRL R & D Ambernath and testing report from NABL acredited lab as per BIS - 10500:2012 parameters Complete for drinking water carried out all as directed by Engr-in-Charge.