SPL REPAIR TO SEWAGE NETWORK TO PREVENT FREQUENT CHOKING, BLOCKING AND ACCUMULATION OF SEWER WATER IN NEW MD LINES UNDER GE GOLCONDA

Thorough cleaning of sewage manholes / inspection chambers of any size and depth upto 1.2m from GL. The work involves: (a) Opening of manhole covers and providing adequate ventilation to ensure the escape of toxic gases (H2S, Methane). (b) Manual or mechanical removal of accumulated sludge, silt, grit, solid waste, and any other obstructions from the floor, benching, and channel of the manhole. (c) Scrubbing of internal walls and benching to remove fungal growth/algae. (d) Immediate removal and carting away of the extracted sludge from the premises in sealed containers to the outside of MD land complete all as specified and directed.

Thorough cleaning of sewage manholes / inspection chambers of any size and depth more than 1.2m from GL. The work involves: (a) Opening of manhole covers and providing adequate ventilation to ensure the escape of toxic gases (H2S, Methane). (b) Manual or mechanical removal of accumulated sludge, silt, grit, solid waste, and any other obstructions from the floor, benching, and channel of the manhole. (c) Scrubbing of internal walls and benching to remove fungal growth/algae. (d) Immediate removal and carting away of the extracted sludge from the premises in sealed containers to the outside of MD land complete all as specified and directed.

Cleaning of septic tanks completely by empting the liquid / semi solid foul contents mechanically as specified completely, cleaning inlets and outlets etc including disposal of soil sludge outside MD land complete all as specified and directed.

Systematic clearing of accumulated solid waste, silt, grit, and sludge from internal / external sewage pipelines / hume pipe culverts of diameters up to 300mm. The process includes: (a) Use of high-pressure hydro-jetting machine with specialized nozzles to break down hardened silt and flush it towards the downstream manhole. (b) Where mechanical jetting is restricted, use of flexible sewer rods with appropriate attachments (cutters/scrapers) to dislodge blockages. (c) Continuous flushing with water to ensure all dislodged debris is captured at the manhole and removed manually. (d) Verification of the "clear bore" by performing a ball test or a flow-gradient test between two consecutive manholes. Work includes the disposal of all extracted waste in sealed containers to the outside of MD land complete all as specified and directed.

Systematic rectification of leakages at the entry and exit pipe junctions within the manhole by Chipping away failed cement mortar or old "benching" around the pipe circumference to a depth of 50mm. And applying a high-strength, fast-setting, non-shrink hydraulic cement or epoxy-modified mortar to seal the annular space between the pipe and the wall complete all as specified and directed

Excavation in trenches n.exc 1.50m wide and n.exc. 1.50 m depth and getting out in hard/dense soil complete all as specified and directed.

Excavation in trenches n.exc 1.50m wide and depth exc. 1.50 m but n. exc 3 m and getting out in hard/dense soil complete all as specified and directed.

Excavating over areas, n exc 1.5 m deep and getting out mud, vegetation, debris of brickwork, concrete etc complete all as specified and directed

Earth work in excavation in all kind of soil by mechanical means (Hydraulic excavator)/ in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m complete all as specified and directed.

Earth work in excavation in ordinary rock by mechanical means (Hydraulic excavator)/ in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m complete all as specified and directed.