REPAIR AND CLEANING OF MANHOLES, SEWAGE LINE, SEPTIC TANK AND SOAKAGE PIT ZONE F, G, AND H AT MIL STN AGARTALA

Amount

Removing and cleaning of any type of blockage arising out of chokes gully traps, Nahani traps, floor traps etc. and removing the mud /sludge to a distance exc 250m and buried in trench using necessary tools and plants required for cleaning of blockage etc complete all as specified & directed.

All as per item no 1 above but for manhole chamber of any size.

M&L for cleaning of septic tank 100 users by removing sludge in semi solid state or liquid state and depositing where directed complete all as specified and as directed.

M&L for cleaning of septic tank 50 users by removing sludge in semi solid state or liquid state and depositing where directed complete all as specified and as directed.

M&L for cleaning of septic tank 25 users by removing sludge in semi solid state or liquid state and depositing where directed complete all as specified and as directed.

M&L for cleaning and removing off sludge, soil,mudetc.from sewage pipe lines of any type and any dia by roding with MS rod/bamboo strips (tied with juts/emery bags) by pressure pump between manholes to manholes and incl cleaning of Por S trap of bathroom and WC and finally flushing down with water and removing sludge from manholes and deposit in trenches incl sprinkling of bleaching powder over the area of trench and incl necessary excavation and earthwork in soft/loose soil, complete allas specified and directed.

M&L for dewatering of soak well or sewage pit of dia 1.8 to 3.6 Mtr & depth upto 3.5m manually or by using pump and removal of sludge if any to a distance exc 1.5 Km but not exc 5KM out of MOD land complete all as specified and directed.(Note: the unit quoted rate under this items shall deemed to be inclusive of bleaching powder, necessary earth work of earth pit for deposition of sludge etc.)

Excavation in trenches n.exc 1.5 mtr wide and n.exc 1.5 mtr in depth for foundation and n.exc 1.5 mtr depth in soft/loose soil.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm complete all as specified and directed.

Removing excavated material n.exc.50m and depositing where directed at a level n.exc.1.5m above the starting point.

Demolition and breaking up drain pipe (SGSW)set in cement mortar of 100 mm bore complete all as specified and directed including PCC benching complete all as specified and as directed.

M&L cement concrete 1:3:6 type C-2 (using 40 mm graded stone aggregate) to bed of drain pipes including packing under and haunching against the sides of pipes, after they are laid and tested for 100 mm bore pipe complete all as specified and directed

M&L for 100 mm bore PVC (SWR) pipes single socketed of min 6kgf/cm2 , in any length with rubber ring joints, laid in trenches or in floors and jointed as specified.

Demolition and breaking up drain pipe (SGSW)set in cement mortar of 150 mm bore complete all as specified and directed including PCC benching complete all as specified and as directed.

M&L cement concrete 1:3:6 type C-2 (using 40 mm graded stone aggregate) to bed of drain pipes including packing under and haunching against the sides of pipes, after they are laid and tested for 150 mm bore pipe complete all as specified and directed

M&L for 150 mm bore PVC (SWR) pipes single socketed of min 6kgf/cm2 , in any length with rubber ring joints, laid in trenches or in floors and jointed as specified.

Demolition of plain cement concrete (unreinforced) in ground floors and pavings n.exc 15 cm thickness (below or above ground level) complete all as specified and directed.

M&L cement concrete 1:4:8, Type D-2 (using 40mm graded crushed stone aggregate) as in foundation for manholes all as specified and as directed.

M&L for PCC Type B-1, (1:2:4) cast in situ (using 20mm graded crushed stone aggregate) as in benching, haunching including weathering, slightly rounded or chamfered incl necessary formwork as required complete all as specified and directed.

M&L for PCC Type C-1, (1:3:6) cast in situ (using 20mm graded crushed stone aggregate) as in coping incl necessary formwork as required complete all as specified and directed.

Extra for forming fair finished drain or channel 30 cm inner girth in cement concrete using extra cement, including necessary forms, moulds, mitred/stopped end etc as specified and as directed.

Add or deduct for each 25mm girth or part thereof over or under 30 cm.

Demolition of brick work or stone/boulder masonry, built CM including all quoins, pillars etc.

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

M & L Brick work with sub class 'B' bricks half brick size, straight or curved on plan exc 6 m mean radius, built in cement mortar 1:4 complete as specified and directed.

Taking down of cement plaster of any description on brick walls of manholes/septic tank etc complete all as specified and directed.

M&L for rendering 15mm thick on fair surface of brick work or concrete surfaces in cement mortar (1:4) finished even and smooth without using extra cement on external surfaces of wall complete all as specified and as directed.

M&L for rendering 15mm thick on other than fair surface of brick work or concrete surfaces in cement mortar (1:4) finished even and smooth without using extra cement on wall using water proofing compound @2% by wt of cement complete all as specified and as directed.

Supply only liquid water proofing compound

Demolition of precast reinforcement cement concrete in ground floor and paving n.exc 15 cm thickness (below or above ground level).

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

M&L precast cement concrete type B1, 1:2: 4 ( using 20mm graded stone aggregate) in cover slab set in CM (1:4) for manhole and similar articles with plain faces complete all as specified and directed.

Dismantling of CI/PVC/reinforced concrete drain pipe 100/75 mm dia jointed in cement mortar and taking out of trenches if reqd.

S&F 110 mm PVC (SWR) pipes single socketed in any length with rubber ring joints fixed on walls all as specified and directed

S&F 110mm PVC(SWR) bends any radius with access door complete all as specified and directed.

S & F 75 mm bore PVC (SWR) pipes single socketed in any length with rubber ring joints fixed to walls complete all as specified and directed.

S&F 75mm bore PVC bend (any radius) diminishing pieces or tapers (larger bore measured) with oval access door complete all as specified and directed.

S&F PVC (SWR) vent cowl, 110 mm dia complete all as specified and directed.

S&F PVC (SWR) vent cowl, 75 mm dia complete all as specified and directed.

M & L in repair PVC gully trap125/110mm setting and jointing with solvent cement complete all as specified and directed.

S/F in repair PVC (SWR) floor trap plain with grating including jointing with solvent cement 75mm dia out let complete all as specified and directed.

NOTES :- 1. The amount of schedule of credit shall be deducted from the total of this BOQ for arriving at contract sum. 2. Unless otherwise specified the rates for PCC shall deemed to include the cost of formwork shuttering etc, required for complete and proper execution of the work. Refer Schedule 'A' notes for details.

M/S Ajoy Acharjee (BID ID -3372169)

SHRI RAJESH DEY (BID ID -3371062)

M/S PAUL ENTERPRISE (BID ID -3372589)