FOR REPAIRS TO SEWAGE LINES, MANHOLES, RAIN WATER PIPES, SEPTIC TANK, SOAK WELLS, RCC PIPE, COVER SLABS AND OTHER ALLIED WORKS AT NAVAL BASE AND CERTAIN B/R MISCELLANEOUS WORKS AT 7M DET

Schedule 'A'

Taking out (desilting) silt, Brick Bats, debris liquid waste sludge in solid/semi-solid state from Manholes including pumping out sludge where ever necessary plugging diverting the flow in the drain, removing removed silt/sludge in deposit away from the edge of manholes, by mechanical means such as jet auger and mechanical vacuum tank as directed including use of safety belt, mask, dry cells torch for lightening inside the manholes and taking similar precautionary measures and removing the sludge etc outside MD land in covered container and cleaning the manholes and surrounding with clean water, and closing the manhole with cover etc all as specified and directed:-

Manholes not exceeding depth of 1.0 mtr.

Manholes depth exceeding 1.0 mtr but not exceeding 2.0 mtr.

Removal of blockage of sewage line of pipe up to 150 mm bore and systematically cleaning the same using necessary tools mechanically or manually such as passing rope knot bamboo kanti , jet auger, pressure tool and mechanical tools of description of required size including safety measures such as mask for gas etc all as per item of cleaning of manholes flushing the pipes with water after removal of blockage as specified.

Taking out silt, brick, debris, liquids waste, sludge in solid / semi solid/ liquid state including complete cleaning of septic tank (bailing out water) and suitably disposing off outside MD land in covered container for the following capacities by mechanical means such as Jet auger and mechanical vacuum tank complete all as specified and directed by Engr-in-Charge.

upto 100 users capacity

101 to 200 users capacity

201 to 250 and above capacity

Cleaning of chocking / blocking of WHB / water closet (Indian/European WC), floor traps, Gully trap using necessary tools and cleaning /washing area and re-fixing the grating, etc in position after completion of job packing with white cement, all as specified and directed.