Providing Sewerage Scheme to Vill. Hadsar Tehsil Bharmour Distt. Chamba

Amount

Construction of Sewage Teatment Plant of 0.210MLD capacity based on Latest Technology such as MBAR including evolving of hydraulic & structural desigsn & drawings, planning, testing and commissioning followed by tertiary treatment such as by constructing wet land, multimedia filter, auto chlorination as per the provisions of Mannual on Sewerage & Sewage Treatment published by CPHEEO Manual (Latest edition). The Sewage Treatment Plant should be capable of treating domestic raw sewage having charactristics of BOD =350 mg/litre & suspended Solids =750 mg/litre and the characteristics of treated /disposable effluent should comply with the standards as per the norms of H.P. State Polution Control Board i.e. PH = 6.5- 9, BOD ≤ 10 mg/litre, COD ≤ 250 mg/litre, TSS ≤ 50 mg /litre,Fecal Coliform (MPN /1000 ml) <100,N - Total ≤ 10 mg/litre, NH 4 - N ≤ 5 mg/litre . The scope of work including C/O 01 No. inlet chamber, 2 Nos. Screening channel with cleaning arrangement, 2 Nos.Grit channels and distribution box, Multi Baffled Anaerobic Reactor, constructed wet land, multimedia filter, chlorine contact tank with required arrangement,Wetland comprising of with covering roof, walkways for all units, Plant building inculding laboratory of required class as per CPHEEO manual of Sewerage and Sewage treatment,Lab equipments ,providing & installation of all mechanical & electrical equipments as per chapter No. vi(a), vi(b), vi (c), It also includes site development for all civil structures, Boundary wall around the STP with gate.Providing and fixing of yard lighting around STP with in all leads and lifts complete in all respect as per the entire satisfaction of Engineer-in-charge. After succcessully commissioning of STP Operation, maintenance of STP shall be carried out free of cost by contractor for 120 days to achieve above mentioned effluent standards.

Excavation in foundation ( trenches for pipes and Manholes) upto all depths in all classification of earth work such as pick work, jumper work, blasting soft/hard rock or chieselling soft/hard rock where blasting is prohibited, cutting of matelled bitumenous roads / pucca pavements i/c saturated soil/ bailing or pumping out water in all lifts including trimming and dressing of sides,levelling of beds to correct grade including shoring,strutting, planking, timbering and dewatering wherever required, stacking the useable and un-usable material/soil separately and after laying, jointing and testing of pipes returning the useable soil to trenches in 15cm (fifteen centimeters)layers including consolidating of each deposited layer by ramming and watering and then disposing of all surplus excavated soil,un-usable materials as directed within all leads and lifts including restoration of un-metalled surfaces to its original condition and also including cost of diversion of traffic,night signals,fixing caution boards,crossing over trenches for access to houses,fencing etc.complete in all respects within all leads and lifts as per the directions of Engineer-in-charge.

Laying, jointing and testing in trenches to be levelled to grade, centrifugal cement mortar lined ductile iron(spun) pressure pipes confirming to BIS 8923-2000 class K-7,suitable for tyton (push on joints ) including , tees, collars, tapers (if required) crosses, short pieces , tail pieces, plugs of required sizes i/c cutting pieces, chamfering where- ever required (earth work in trenches and cost of joints to be measured and paid for separately) including carriage with in all leads and lifts complete in all respects to the best satisfaction of the Engineer-in-Charge of the following nominal diameters.

150mm dia

Providing and fixing 150mm dia DI K-7 Y-Tee for inspection chamber complete in all respects within all leads and lifts as per the directions of Engineer-in-charge.

Providing and fixing 150mm dia Plug for inspection chamber complete in all respects within all leads and lifts as per the directions of Engineer-in-charge.

Providing and fixing 150mm dia DI K-7 bends of all degrees (i/c CML tyton push on joints with EPDM gasket) for inspection chamber complete in all respects within all leads and lifts as per the directions of Engineer-in-charge.

Providing and laying cement concrete 1:4:8(1:cement :4 sand:8 graded stone aggregate 40 mm nominal size) and curing complete excluding cost of form work in foundation and plinth i/c carriage of material within all leads and lifts. as per the directions of Engineer-in-charge.

Providing and laying cement concrete 1:1:5:3 ( 1cement :1.5 sand:3 graded stone aggregate 40 mm nominal size) and curing complete excluding cost of form work in foundation and plinth i/c carriage of material within all leads and lifts as per the directions of Engineer-in-charge..

Providing and laying reinforcement cement concreate work 1:1½:3 (1 cement: 1½ sand:3 graded Stone 20 mm nominal size) and curing complete excluding the cost of form work and reinforcement for reinforced concrete work: In walls(any thickness) but not less than 0.10 mtr thickness ) attached pillaster, buttresses, plinth and string courses etc from top of foundation level up to floor two level with in all leads and lifts as per the directions of Engineer-in-charge..

Providing and laying cement concrete work 1:1.5:3(1cement:1.5sand:3graded stone aggregate 20mm nominal size) and curing complete excluding cost of form work and reinforcement for reinforced concrete work: In suspended floor roofs,landings, shelves and their supports balconies, beams girders bressumers and centilevers upto floor two level i/c carriage of material within all leads and lifts as per the directions of Engineer-in-charge..

Providing and laying cement concrete work 1:2:4(1cement:2sand:4graded stone aggregate 20mm nominal size) and curing complete excluding cost of form work and reinforcement for reinforced concrete work: In suspended floor roofs,landings, shelves and their supports balconies, beams girders bressumers and centilevers upto floor two level i/c carriage of material within all leads and lifts as per the directions of Engineer-in-charge..

Providing form work with steel plates 3.15 mm thick welded with angle iron in frame 30x30x5mm so as to give a fair finish including centring, shuttering , strutting and propping etc with batten & ballies,in all height of propping and centring below supporting floor to ceiling and removal of the same for in-situ-reinforced concrete and plain concrete in:

Vertical surface such as wall (any thickness) partition and the like i/c attached pillasters, butresses plinth and string course including all leads and lifts. as per the directions of Engineer-in-charge.

Flat surfaces such as soffits of sunspended floor, roofs landings and the like floors etc upto 200mm thickness within all leads and lifts as per the directions of Engineer-in-charge.

Providing and laying Mild steel/tor steel reinforcement for RCC work including bending, binding and placing in position complete upto floor two level (tor steel) complete with in all leads and lifts as per the directions of Engineer-in-charge.

Providing & fixing of precast RCC (SFRC) manhole cover with frame conforming to IS specifications Code- 12592 Part-I & II with latest amendment (Medium duty) complete with in all leads and lifts as per the directions of Engineer-in-charge.

applying cement slurry on RCC slab or cement concrete work including carriage with in all leads and lifts as per the direction and satisfaction of the Engineer-in-Charge

Providing 200 mm wide cast iron rungs with chequered or ribbed non slip surfaces in cluding fixing in manhole with in all leads and lifts as per the directions of Engineer-in-charge.

Operation & maintenance (O&M) of the Sewerage Scheme to Village Hadsar (STP0.210 MLD and associated sewer network 4.14 KM) for 3 years after its successful testing and commissioning of 90 days to achieve the effluent standards laid down in the DNIT & CPHEEO Manual (Eddition 2013 ). Firm should do comply the stringent effluent standards laid down by HP Pollution Control Board. The O & M part envisages regular repair & maintenance of all the civil structures i/c their allied components, deployment of skilled and unskilled manpower of proper strength as per departmental norms, timely trimming of macrophytes, replacement of dead macrophytes, timely dosing of enzymes and activators for root modulation as well as adaptation (as per the need, if treated effluent norms could not be achieved) and any other material required for O&M excluding the cost of energy charges. It also includes proper cleaning, flushing, removal of all kind of slips/debris/slush, uprooting of unwanted grass/shrubs/weeds growing near the structures within the boundary of STP, repairs/ replacement of worn out/damaged pipe lines, valves and safe disposal of the treated effluent up to final disposal point, maintaining regular/proper record of quantity and quality of sewage influent & treated effluent, keeping the area neat and clean to the entire satisfaction of Engineer- in-Charge,. All the operation shall be carried out as per the terms & conditions of DNIT & CPHEEO manual on sewerage and sewage treatment (2013 or latest addition)/ IPH specifications & Norms, and as per direction issued by Engineer-in-Charge from time to time and sound Engineering practice.

i) O & M Charges for the Ist Year

ii) O & M Charges for the 2nd Year

iii) O & M Charges for the 3rd Year

Dogra Construction Company Pvt Ltd

NEEM ENVIRO