Cleaning and Desilting of drains, sewer lines, septic tank, roof

Amount

Cleaning and desilting of storm water drains and chambers along the perimeter walls area and various plant buildings by removing RCC precast slabs laid over drain, removal of vegetation from the side slopes/sides of drains, removing all debris, accumulated silt, cleaning of jali, again laying of precast slabs as etc., stacking rubbish at suitable location conveying upto a lead of 100 m, placing in heaps at the places shown as directed and in NFC from the drains of various depths as mentioned below.

(a) Depth upto 0.50 m

b) Depth from 0.51 m upto 1.00 m

(c) Depth from 1.01 m to 2.00 m

(D)BEYOND 2.00 m

Removal and cleaning of chokes occur in IWCs, EWCs, Urinals, Nahani traps, Gully traps, Wash Basins, G. I. water lines etc., including cleaning the lines thoroughly with required tools and plants as directed by Engineer-in-Charge

Cleaning the roof terraces of all RCC buildings including rain water gutters at all heights at various buildings at NFC, by sweeping and removing the dry leaves, twigs, waste papers and spalls, all debris etc., cutting and removal of tree branches of different sizes leaning over the buildings at all heights, cutting the branches in to pieces for easy transportation, desilting of rain water spouts, conveying and pouring water in to the rain water pipes, pouring and cleaning the chokes if any cleaning of chajjas including the spouts, collecting the dry leaves, twigs wastes etc., in a place shown by Engineer-in-Charge including cost of materials such as brooms, tools required for cleaning, gloves, mask and other tools as specified and as directed by Engineer-in-Charge.

Emptying the septic tank and blocked sewage chambers including pumping out all sewage sludge into mobile septic tank cleaning tankers and carrying out the sewage outside NFC for disposal and cleaning the septic tank walls and floor with water jet, clearing all the blockages in outlet lines including all required operators, workmen, equipment etc., complete as directed.

Providing Sewer line jetting machine for cleaning of under ground sewer line as and when required. The capacity of machine should be minimum 6.00 Cum, Jetting pressure Minimum 90 Bars, and hose pipe length minimun 30 mts to be available in the jetting machine. ( Note: Payment shall be made on daily basis ( 0- 4 hours half day more then 4 hours shall be considered as one day )

P PASUPATHINATHAN (BID ID -3197563)

HABEEB ENGINEERS (BID ID -3197414)

P R CONSTRUCTION ENGINEERS & CONTRACTORS (BID ID -3192266)