Providing Sewarage Scheme Namgia in Tehsil Pooh and Distt. Kinnour HP

Amount

Construction of Sewage Treatment Plant of 100 KLD capacity based on Natural treatment technology with secondry treatment by MBAR (Multi Baffled Anaerobic minimum HRT 40 hours) system followed by tertiary treatment based on natural treatment system in the shape of constructed wetland, including evolving of hydraulic & structural designs & drawings, planning, testing and commissioning of treatment Plant as per the Provision of required on sewerage & sewerage Treatment Published by CPHEEO(Latest Addition). The Sewage Treatment Plant should be capable of treating domestic raw sewage having influent characteristics of BOD =350 mg/litre & suspended Solids =650 mg/litre and the characteristics of treated /disposable effluent should comply with the standards as per the norms of H.P. State Pollution Control Board i.e. PH = 6.5- 9, BOD ≤ 10 mg/litre, COD ≤ 50 mg/litre, TSS ≤ 50 mg /litre, Faecal Coliform (MPN /1000 ml) <100, N - Total N ≤ 10 mg/litre, NH4 - N ≤ 5 mg/litre. The scope of work includes construction of Inlet Chamber,Screen Chamber, Grit Channel, Distribution Box, Multi Baffled Anaerobic Reactor (MBAR),Sludge Drying Beds , Constructed Wetland (Rootzone System), Multi Media Filter, Chlorine Contact Tank, Interconnectivity pipe of STP & Effluent Pipe,Fencing Pannel around the STP yard,steel gate,Interconnecting Path,Railing and Access ladder,Plant Building i.c Chhowkidar Room,Providing & Installation of Electro Mechanic Equipments,Supply & Installation of Laboratory Equipments. with in all leads and lifts complete in all respect as per the entire satisfaction of Engineer-in-charge (as per chapter No. I (a), I (b), I (c). 3 Months of successful trial run as per the provisions of Manual on Sewerage & Sewage Treatment published by CPHEEO Manual (Latest edition).

Excavation in foundation, trenches etc. in earth work, in all kinds of soil such as pick work, jumper work, blasting work in hard / soft rocks, chiseling / wedging out of hard / soft rocks including dewatering in saturated soil up to all leads and lifts, staking the excavated soil / materials upto all leads and lifts clear from the edge of excavation and then returning the stacked excavated soil in all layers when required into plinths sides of foundation etc.consolidating each deposited layer by ramming and watering and then disposing of all surplus excavated soil as per direction of Engineer -in-Charge.

Providing & laying cement concrete 1:4:8 (1cement: 4sand: 8graded stone aggregate 40mm nominal size) and curing complete excluding cost of form work in foundation and plinth with in all leads and lifts as per the direction of Engineer-in-charge

Providing & laying cement concrete using M-30 (Design Mix) but not less than 1:1.5:3 (1 cement : 1.5 sand : 3 graded stone aggregate 20 mm nominal size) and curing complete excluding the cost of form work and reinforcement for reinforced cement concrete work within all leads and lifts as per the direction of Engineer-in-charge :-

Foundation footings bases of columns and the like and mass concrete.

Wall (any thickness but not less than 0.10 mts. thickness) attached pillasters, buttresses plinth, and string courses etc.from top of foundation level upto floor two level.

Suspended floor, roofs, landing and shelves and their supports balconies, beams, girders, bressumers and cantilevers upto floor level.

Providing form work with steel plates 3.15mm thick welded with angle iron in frame 30x30x5mm, so as to give a fair finish including centring, shuttering, strutting and propping etc. with wooden battens and ballies height of propping and centering below supporting floor to ceiling not exceeding 4 meters and removal of the same for in-situ reinforced concrete and plain concrete work within all leads and lifts as per the direction of Engineer-in-charge.

Flat surface such as soffits of suspended floors, roofs, landing and the like floors etc. upto floor to 200mm in thickness.

Vertical surfaces such as walls (any thickness) partitions and the like including attached pillasres buttresses, plinth & string courses and the like.

Providing mild steel/ Tor steel reinforcement for RCC work including bending,binding & placing in position complete upto floor two level within all leads, lifts and other incidentials as per the direction of Engineer-in-charge.

Applying cement slurry on R.C.C. slab or cement concrete work using 2.75 kg. of cement per sq.metre of floor area before laying cement concrete flooring including roughening, cleaning of the concrete surfaces complete within all leads, lifts and other incidentials as per the direction of Engineer-in-charge.

Providing and fixing 200 mm wide CI Rungs with chequered/ ribbed non-slip surface including fixing in manhole with 200 X 100 X100 mm cement concrete1:3:6 (1cement:3 sand:6 stone aggregate 40mm nominal size) within all leads and lifts and to the entire satisfaction of the Engineer-in-charge.

Providing and fixing pre cast SFRC Manhole cover with frame having size of 560 mm internal dia (Medium Duty) complete in all respect within all leads and lifts and to the entire satisfaction of the Engineer-in-charge.

Laying, jointing and testing of DI pipe spigot and socketed pipe with CML (SBR tyton push on joint) complete in all respect as per IS 8329-2900 class K7 diamention weight and test pressures in all respect and as per latest ammendments or edition within all leads and lifts and to the entire satisfaction of the Engineer-in-charge.

150mm dia

Providing and jointing tyton (Push on joints) to Ductile iron pipe and fitting including testing of the joints, cost of rubber gasket (EDPM quality) conforming to IS 3382 (latest edition/ ammendments complete in all respect within all leads and lifts and as per latest ammendments or edition within all leads and lifts and to the entire satisfaction of the Engineer-in-charge.

Providing and fixing all socket DI Tee/ Cross as per IS 8329 or letest additional amendments including carriage of material within all leads lifts complete in all respect to the entire satisfaction of the Engineer-in-charge.

Dogra Construction Company Pvt Ltd

SS Engineering Corporation