CLEANING OF SEPTIC TANK MANHOLE SEWAGE LINE AT PKT A B AT HQ SAC TVM UNDER GE AF TRIVANDRUM

Amount

Cleaning of Gulli trap/Nahani trap with cleaning tools and getting out sludge, mud, silt or other foregin materials complete all as specified and as directed by Engineer in Charge. Note :- Obtained waste materials shall be disposed to a distance not less than 100 mtrs as directed by Hygenic authorities)

M&L for making good damaged surfaces of sorroundings of nahani trap, Gulli trap/floor traps etc with CM 1:3 or white cement complete all as directed by Engineer in Charge.

Cleaning of septic tank by removing man hole cover including removing of earth/soil spread over the cover if any, from the frame of a septic tank and receiving chambers, pumping out liquid contents and excavating night soil sediments and waste materials etc, clearing off up to the bottom floor and dispose off the materials to a distance not exceeding 100 mtrs from the septic tank to a pit suitably as directed by Hygenic authorities excavated to contain night soil, place back the man hole cover to its original position and removing all vegetable roots if any and making good surroundings complete all as specified and directed, including the cost of excavating the pit and refilling back. Note:-The measurement shall be inclusive of water content from bottom of tank to the invert level of outlet pipe.

Opening manholes of septic tanks, removing night soil, other sediments, solid waste and liquid waste in any condition by pumping or any other mechanical means, cleaning internal surfaces of the tank with clean water and refixing the manhole on completion of work complete all as specified and directed. Notes:- (a) The night soil, sediments, solid and liquid waste in any condition removed from septic tank shall be taken away from respective vicinities and premised in closed containers/converyance and disposed off out of Defence land. (b) Disposal of the same shall be the responsibility of the Contractor. Disposal of waste shall be made in accordance with the regulations of authorities concerned without any extra expenditure to the Government.

Cleaning Man holes by removing manhole cover, dewatering and getting out sludge, deposit mud, silt or other foreign materials and vegetation and cleaning the sides and floors of the manhole, removing over flowed sullage from sorrounding of man holes and removing the same outside the defence land including taking of manholes covers and refixing the same in position and testing of manholes by filling with water complete all as specified and as directed.

All as per item No 6 here-in-before but for manhole depth exceeding 1.5m and not exceeding 3.00m.

Cleaning SWG/PVC/CI pipe sewage line manually or mechanically using cleaning rod or compressor and removing foreign material after clearing existing blockage for 75mm dia pipe in vertical walls/floors complete all as specified and directed.

Cleaning SWG/PVC/CI pipe sewage line manually or mechanically using cleaning rod or compressor and removing foreign material after clearing existing blockage for 110mm dia pipe on vertical walls/floors complete all as specified and directed.

Cleaning SWG/PVC/CI pipe sewage line manually or mechanically using cleaning rod or compressor and removing foreign material after clearing existing blockage for 150mm dia pipe complete all as specified and directed.

Demolition of brick work or stone masonry built in cement mortar including all quions, arches, pillars,etc but excluding ashlar facings, dressed stone work and precast concrete articles all as specified

Demolition of reinforced cement concrete in ground floors and pavings not exceeding 15 cm thickness (below or above GL) all as specified

Excavation in trenches n.exc 1.5 M wide and n exc 1.5 M depth and getting out in hard/dense soil complete all as specified and directed.

M&L for PCC 1:4:8 type D2, using 40 mm graded aggregate in foundation, mass concrete complete all as specified and directed.

S&F in repairs 110 mm bore PVC (SWR) pipes single socketed in any length with rubber ring joints laid in trenches or in walls or floors complete all as specified and directed

S&F in repairs 150 mm bore PVC (SWR) pipes single socketed in any length with rubber ring joints laid in trenches or in walls or floors complete all as specified and directed

M&L for cement concrete bed to drain pipe 150 mm dia in cement concrete 1:3:6 type C2 including packing under,and haunching against the sides of pipes after they arelaid and tested all as directed and specified

S&F In repairs PVC (SWR) gully trap 125/110 mm setting and jointing with solvent cement and making good the surfaces all as directed and specified

Returning, filling ramming etc in layers n.exc 25 cum including levelling, watering etc complete all as directed

Removing excavated materials not exc 50 Mtr and depositing where directed at level n. exc 1.5 Mtr above from the starting point complete all as specified and directed.

PCC 1:3:6 type in foundation type C2 using 40mm graded aggregate in manhole foundation all as specified and directed

M&L for PCC Coping in PCC 1:2:4 type B1 using 20mm graded aggregate including chamfered edges all as specified and directed

M&L of cement concrete type B 1:2:4 20mm graded aggregate as in surface channels, benching inside manholes complete all as specified and directed

M&L Brick work with sub class 'B' bricks straight or curved on plan exc 6m mean radius built in cm 1:6 all as specified and as directed

M&L for brick work with sub class 'B; brick in half brick thick built in CM 1:4 straight or curved in plan exceeding 6 mtr mean radius complete all as specified and directed.

M&L for rendering 15 mm thick on fair faces of brick or concrete wall surfaces finished to evern and smooth without using extra cement in CM 1:4 complete all as specified and directed.

M&L for precast reinforced concrete 1:2:4 type B1 using 20 mm graded stone aggregate for cover slab set in and pointed in CM 1:6 including necessary formwork complete all as specified and directed.

S&F TMT bars 10 mm dia and over cut to length bend to shape required including cranking bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire(annealed) not less than 0.9mm dia or securing with clips complete all as specified and directed.

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