Sewerage and Septage Management for sewer system with STPs and laying jointing testing and commissioning of Sewerage System in 07 ULBs including 1 year defect liability with 10 years O and M

Dismantling of flexible pavements for sewer line and manholes and disposal of dismantled materials up to a lead of 50 metres as directed by Engineer including allowances for any additional dismantling beyond the drawings (measurement for payment to be as per standard drawings), re-handling of material/earth to complete the task.

Bituminous Courses

Granular Courses

Dismantling of cement concrete pavement for sewer line and manholes by mechanical means using pneumatic tools, cutting the peripheral edge by CC cutter, breaking to pieces not exceeding 0.02 cum in volume and stock piling at designated locations and disposal of dismantled materials up to a lead of 1000 metres including allowances for any additional dismantling beyond the drawings (measurement for payment to be as per standard drawings), rehandling of material/earth to complete the task.

Dismantling of existing structures like culverts, bridges, retaining walls, CC road and other structure comprising of masonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 50 metres as directed by Engineer.

Lime Concrete, cement concrete grade M-10 (1:5:10) and below

Cement Concrete Grade M-15 and above and PCC blocks

Dismantling Brick / Tile work

In cement mortar

Dismantling Stone Masonry

Rubble stone masonry in cement mortar

Providing, laying, spreading and compacting of granular sub-base by providing close graded Material, mixing in a mechanical mix plant at OMC, carriage of mixed Material to work site, spreading in uniform layers with motor grader on prepared surface and compacting with vibratory power roller to achieve the desired density, complete as per MoRT&H specification clause - 401 including all material, labour, machinery, lighting, guarding and maintenance of diversion.

Grading - I Material

Providing, laying, spreading (with paver finisher only) and compacting wet mix macadam (WMM) base course comprising of graded stone aggregate and granular material conforming to MORT&H specifications (Table 400-II) in layers of equal compacted thickness each consolidated, including pre-mixing the material with water at OMC in mechanical mixer (Pug Mill), carriage of mixed material by tippers to site, laying in uniform layers in base course on a well prepared sub-base/ base course and compacting with power vibratory-roller to achieve the desired density complete as per MoRT&H specification clause - 406 including all material, labour, machinery, lighting, guarding and maintenance of diversion.

Scarifying existing granular road surface, including picking up scarified material and stacking of old serviceable material within a lead of 1000 meters complete as per clause 305.4.3 of MoRT&H specification including all labour, machinery, lighting, guarding and maintenance of diversion.

Providing and applying primer coat over prepared surface of granular base with bitumen emulsion as per IS : 8887 and approved quality @ 0.9 kg/sqm with the help of spray set fitted on bitumen Container (boiler) after cleaning the surface including removing of binding material and other foreign matter with wire brushes and small picks, sweeping with brooms or soft brushes and finally dusting with old gunny bags and compressed air to receive bituminous treatment complete as per clause 502 of MoRT&H specification including all material, labour, machinery, lighting, guarding and maintenance of diversion.

Providing and applying tack coat on the prepared surface with bitumen emulsion as per IS: 8887 and approved quality @ 0.25 kg/sqm with the help of spray set fitted on bitumen Container (boiler) after cleaning the surface with brooms or soft brushes and finally dusting with old gunny bags and compressed air to receive bituminous treatment complete as per clause 502 of MoRT&H specification including all material, labour, machinery, lighting, guarding and maintenance of diversion.

Providing and laying 20mm thick Mix Seal Surfacing on a prepared surface in a single course composed of specified graded crushed aggregates as per table (500-19) premixed with bituminous binder (including cost of anti-stripping compound, wherever required) with lead of mixed material up to 1 Km. [MoRTH Specification: Clause 508 & 112) in a hot mix plant 40-60 TPH with Front end loader, laying with paver finisher transporting the mixed material up to lead of 20 km by tipper and rolling with power roller 8-10 tonne to achieve density approved by the department with all lead, but excluding cost of track coat

Type "B" (19 Kg. Binder per 10 Sqm) bitumen VG 30

Providing and laying open graded premix carpet 20mm thick (compacted), on prepared surface in a single course as wearing course, composed of specified graded crushed stone aggregate as per Table 500-23, premixed with bituminous binder @ 14.60 kg/ 10sqm (including Cost of anti-stripping compound Minimum 1% in Lime/Cement as per design wherever required), including loading of material with F.E. loader, hot mixing of stone aggregate and bitumen in computerised hot mix plant, transporting the mixed material by tippers to paver and laying with paver finisher fitted with electronic sensor control to the required level and grade, compacting smooth wheeled roller 8-10 tonne capacity and finishing to required level to achieve the desired density as per clause 511 of MoRT&H specification including all material, labour, machinery, lighting, guarding and maintenance of diversion but excluding cost of tack coat/ seal coat.

With Bitumen VG-grade 30

Providing and laying bituminous macadam in 50/75 mm compacted thickness on prepared surface with specified graded crushed stone aggregates as per Table 500-4, Grading-II for base/ binding course, loading of aggregate with F.E. loader, heating and mixing of stone aggregate and bitumen in computerised hot mix plant, transported to site by tippers to paver, laid over a previously prepared surface with paver finisher fitted with electronic sensing device to the required grade, level and alignment and rolling with power roller and vibratory compactor as per clauses 501.6 and 501.7 to achieve the desired compaction complete as per clause 504 of MoRT&H specification and including all material, labour, machinery, lighting, guarding and maintenance of diversion but excluding cost of primer/ tack coat.

Grade-II with Bitumen VG-grade 30 @ 4.25 %, lime filler @ 2% (percent by weight of total mix)

Providing and laying bituminous macadam in 50/75 mm compacted thickness on prepared surface with specified graded crushed stone aggregates as per Table 500-4, Grading-II for base/ binding course, loading of aggregate with F.E. loader, heating and mixing of stone aggregate and bitumen in computerised hot mix plant, transported to site by tippers to paver, laid over a previously prepared surface with paver finisher fitted with electronic sensing device to the required grade, level and alignment and rolling with power roller and vibratory compactor as per clauses 501.6 and 501.7 to achieve the desired compaction complete as per clause 504 of MoRT&H specification and including all material, labour, machinery, lighting, guarding and maintenance of diversion but excluding cost of primer/ tack coat.

With Bitumen VG-grade 30 @ 3.3% (percentage by weight of total mix)

Providing laying and consolidation Semi Dense Bituminous Concrete, as per Design Mix (approved by Engineer), on prepared surface with specified graded crushed aggregates as per table 500-15 for wearing coarse including loading of material with F.E. loader, hot mixing of stone aggregate, filler and bitumen (including Cost of anti-stripping compound Minimum 1% in Lime/Cement as per design wherever required) heating and mixing in in computerised hot mix plant, transporting the mixed material by tippers to paver and laying with paver finisher fitted with electronic sensor control to the required level and grade, compacting by power rollers and vibratory rollers or 150 to 250 KN pneumatic tyred roller with TP = 0.7 Mpa, to achieve the desired density (approximately 2.3 tonne/cum) complete as per clause 508 of MoRT&H specification including all material, labour, machinery, lighting, guarding and maintenance of diversion but excluding primer/tack coat.

35-40 mm compacted thickness (Grade-1) using Bitumen VG-grade 30 @ 4.5% (percent by weight of total mix)

Providing and laying 30-45 mm compacted thickness Bituminous Concrete as per design mix (approved by Engineer) on prepared surface with specified grade stone aggregate as per Table - 500-18 with bitumen for wearing course including loading of aggregate with F.E. loader and hot mixing of stone aggregate and bitumen (including Cost of anti-stripping compound Minimum 1% in Lime/Cement as per design wherever required) in computerised hot mix plant, transporting the mixed material by tippers to paver and laying with paver finisher fitted with electronic sensing device (as per clause 504-3.5) to the required level and grade and compacting by power rollers and vibratory rollers or 150 to 250 KN pneumatic tyred roller with TP = 0.7 Mpa, to achieve the desired density complete as per clause 509 of MoRT&H specification including all material, labour, machinery, lighting, guarding and maintenance of diversion but excluding primer/tack coat.

Grade-II with Bitumen VG-grade 30 @ 6% (percent by weight of total mix)

Providing and laying un-reinforced, plain cement concrete mix in pavement over a prepared sub base with 43 grade cement, coarse and fine aggregate conforming to IS: 383, maximum size of coarse aggregate not exceeding 25 mm, mixed in a batching and mixing plant, transported to site, laid spread, compacted and finished in a continuous operation including provision of contraction, expansion, admixtures as approved, curing compound, finishing to lines and grades complete as per drawing and as per clause 602, 112 of MoRT&H specification including all material, labour, machinery, lighting, guarding and maintenance of diversion for road restoration under sewer line and manhole work including allowances for any additional road restoration beyond the drawings (measurement for payment to be as per standard drawings) to complete the task. cement concrete 1:4:8

cement concrete 1:3:6

Providing and laying un-reinforced, plain cement concrete mix with Concrete Mixer & vibrator pavement over a prepared sub base with 43 grade cement , coarse and fine aggregate conforming to IS: 383, maximum size of coarse aggregate not exceeding 25 mm, mixed as per approved mix design, laid, spread, compacted and finished in a continuous operation including provision of contraction, expansion, construction and longitudinal joints etc including all material, labour, machinery, lighting, guarding and maintenance of diversion.

Providing and laying lean cement concrete 1:4:8 in Sub- base over a prepared sub-grade with coarse and fine aggregate conforming to IS: 383, the size of coarse aggregate not exceeding 25 mm, aggregate cement ratio not to exceed 15:1, aggregate gradation after blending to be as per table 600-1, cement content not to be less than 150 kg/ cum, optimum moisture content to be determined during trial length construction, concrete strength not to be less than 10 Mpa at 7 days, mixed in concrete mixer, laid manually, compacted with surface vibrator, finishing and curing complete as per clause 601, 112 of MoRT&H specification including all material, labour, machinery, lighting, guarding and maintenance of diversion.

Providing and laying un-reinforced, dowel jointed, plain cement concrete mix in pavement over a prepared sub base with 43 grade cement, coarse and fine aggregate conforming to IS: 383, maximum size of coarse aggregate not exceeding 25 mm, mixed in a batching and mixing plant as per approved mix design, transported to site, laid with a fixed form or slip form paver, spread, compacted and finished in a continuous operation including provision of contraction, expansion, construction and longitudinal joints, joint filler, separation membrane, sealant primer, joint sealant, debonding strip, dowel bar, tie rod, admixtures as approved, curing compound, finishing to lines and grades complete as per drawing and as per clause 602, 112 of MoRT&H specification including all material, labour, machinery, lighting, guarding and maintenance of diversion.

M-30 (As per design mix)

Providing and laying in position cement concrete of specified grade over prepared base course complete including finishing, curing, all material, labour, machinery, lighting, guarding for road restoration under sewer line and manhole work including allowances for any additional road restoration beyond the drawings (measurement for payment to be as per standard drawings) to complete the task.

RCC/ RCC Grade M -20

PCC/ RCC Grade M -25

Providing and fixing of precast concrete interlocking tiles of desired shape of M 30 grade manufactured from fully computerized automatic stationery hydraulic viebro pressed machine and fully computerized automatic batching plant of class A1/A2 as per BS 6717:2001. The CC interlocking paving blocks be laid on average 50mm. thick bed of coarse sand and the joint is to be filled with fine sand. Laying procedure on compacted sub-base as defined. Complete job is to be executed as per the instruction of Engineer incharge. The rates to be inclusive of all lead & Lifts etc. complete as per specifications. Tensile splitting strength, abrasion and braking load etc. as per BS 6717:2001, Grey cement. 100mm thick.

Providing and fixing of precast concrete interlocking tiles of desired shape of M 30 grade manufactured from fully computerized automatic stationery hydraulic viebro pressed machine and fully computerized automatic batching plant of class A1/A2 as per BS 6717:2001. The CC interlocking paving blocks be laid on average 50mm. thick bed of coarse sand and the joint is to be filled with fine sand. Laying procedure on compacted sub-base as defined. Complete job is to be executed as per the instruction of Engineer incharge. The rates to be inclusive of all lead & Lifts etc. complete as per specifications. Tensile splitting strength, abrasion and braking load etc. as per BS 6717:2001, Grey cement. 80mm thick.

Sewer Line, Manhole, Inspection Chamber etc.

Earthwork

Earth work for Sewer line and Manhole in excavation in foundation, trenches manholes, road side chambers etc. including dressing of sides and ramming of bottoms, including getting out the excavated material, refilling after laying pipe/ foundation and disposal of surplus excavated material at a lead upto 50m suitable site as per direction of Engineer for following depths, below natural ground / Road top level including allowances for any additional excavation beyond the drawings (measurement for payment to be as per standard drawings), re-handling of material/earth to complete the task.

In all types soils/ saturated soil such as moorum, sand, sandy silt, clay, black cotton soil, kankar, etc.

Depth upto 1.5 m

Depth above 1.5 m and upto 3.0 m

Depth above 3.0 m and upto 4.5 m

Depth above 4.5 m and upto 6.0 m

Depth above 6.0 m and upto 7.5 m

In ordinary rock

Depth above 1.5 m and upto 3.0 m

Depth above 3.0 m and upto 4.5 m

Depth above 4.5 m and upto 6.0 m

Depth above 6.0 m and upto 7.5 m

Add extra for excavation in saturated soil, silt, rock and sludge where pumping or bailing out of water including well point if required for sewer line and manhole.

Excavation from Encountered depth of water table 0.0 to 1.5 m

Excavation from Encountered depth of water table 1.5 to 3.0 m

Excavation from Encountered depth of water table 3.0 to 4.5 m

Excavation from Encountered depth of water table 4.5 to 6.0 m

Excavation from Encountered depth of water table 6.0 to 7.5 m

Timbering

Providing and fixing OPEN timbering in trenches of sewer line and manholes including strutting, shoring and packing cavities (wherever required) complete for following depth below NGL.

Depth upto 3.0 m

Depth more than 3.0 m and upto 6.0 m

Depth beyond 6.0 m

Extra for planking, strutting and packing material for cavities IN OPEN TIMBERING of sewer line and manholes if required to be left permanently in position (face area of timber permanently left to be measured)

Providing and fixing CLOSE timbering in trenches of sewer line and manholes including strutting, shoring and packing cavities (wherever required) complete. (Measurements to be taken of the face area timbered) for following depth below NGL.

Depth upto 3.0 m

Depth more than 3.0 m and upto 6.0 m

Depth beyond 6.0 m

Extra for planking, strutting and packing material for cavities IN CLOSE TIMBERING of sewer line and manholes if required to be left permanently in position (face area of timber permanently left to be measured)

Providing and fixing close timbiring made of Steel Girder Piling in sewer line and manholes work for support the both side of trenches with ISMB 250 as vertical member at 1.25 m centre to centre, ISMB 250 as horizontal member for tie at two depths, Struts to support the both side of trench of ISMB 250 and face of trench to be covered with 100*100*1235 mm wooden planks and removing Steel Girder piling after laying the sewers etc. complete as per specifications and as directed by Engineer. (Measurements to be taken of the face area timbered)

Depth more than 3.0 m and upto 6.0 m

Depth beyond 6.0 m

Carriage of Materials by mechanical transport including loading, unloading and stacking ::

Earth, Stone Boulders and Gravellary Material

lead up to 1 Km

lead up to 2 Km

lead up to 3 Km

lead up to 3 Km

Barricading

Providing and fixing Barricading at site of work for restricting the general public using 80-100 mm dia Wooden Ballies as vertical post with average spacing of 1.80 meter between two vertical posts, having height at least 1.5 m above road/ ground level and at least 30-45 cm below road/ ground level by making suitable size hole in road/ ground, providing and fixing suitably two rows of 100mm wide PVC Tape preferably of red colour. The vertical members shall be painted in red and white colour strips as per approved pattern as and when it becomes shabby but at least after every alternate shifting at new location. After shifting/ removal of barricading holes shall be filled up properly and site is to be cleared in all respect. (Note: measurement is to be done in linear basis)

Providing and fixing Barricading at site of work for restricting the general public using 40 mm dia M.S. pipe ("B" class) as vertical post with average spacing of 1.80 meter between two vertical posts, having height at least 1.5 m above road/ ground level and at least 30-45 cm below road/ ground level by making suitable size hole in road/ ground, providing and fixing suitably two rows of 100mm wide PVC Tape preferabley of red colour. The M.S. pipe shall be painted in red and white colour strips as per approved pattern as and when it becomes shabby but at least after every alternate shifting at new location. After shifting/ removal of barricading the hole shall be filled up properly and site is to be cleared in all respect. (Note: measurement is to be done in linear basis).

Providing and fixing Barricading at site of work for restricting the general public using 40 mm dia M.S. pipe ("B" class) as vertical post with average spacing of 1.80 meter between two vertical posts, having height at least 1.5 m above road/ ground level and at least 30-45 cm below road/ ground level by making suitable size hole in road/ ground, providing and fixing two rows of 40 mm dia M.S. pipe ("B" class) as horizontal members with nuts & bolts. Both vertical and horizontal members shall be painted in red and white colour strips as per approved pattern as when it becomes shabby but at least after every alternate shifting at new location. After shifting/ removal of barricading holes shall be filled up properly and site is to be cleared in all respect. (Note: measurement is to be done in linear basis).

Providing and Fixing Minimum 0.63mm thick GI corrugated sheets (minimum width of each sheet shall be 60 cm) for covering the barricading in one/ two rows one above another and painting in red and white stripes as per the specifications and directions of the Engineer Incharge with proper fixing arrangements with GI limpet washers nuts and bolts complete in all respect.

Pipes (Supply & Laying)

Providing at site, lowering & laying in trenches, aligning & jointing of PVC-U pipes (SN 8) as per IS 15328 (amended up to date) and as per specifications with rubber rings with socket and spigot joint, (EPDM/SBR) for all depths for pipe length as per drawing and specification including hydraulic field testing (including the cost and conveyance of water to site for testing) and commissioning etc complete as directed by Engineer. Note : E/w to be measured and paid separately. Length of pipe shall be measured in between the outer wall of two manholes / Inspection chambers. Pipe in the manhole/inspection chamber’s wall shall deemed to be included in the item of manhole/inspection chamber shall not be payable

Providing, lowering, laying, aligning, fixing in position and jointing at all level/ depths full round HDPE DWC (double wall corrugated) pipes of SN8 grade as per IS 16098 (Part 2) amended upto date in trenches in complete including all material, labour, sectional hydro testing (including the cost and conveyance of water to site for testing) and commissioning as per Technical Specifications, drawings and as per direction of Engineer. Note : E/w to be measured and paid separately.

Providing at site, lowering & laying in trenches, aligning & jointing of RCC pipes NP4 class (with s/s ends) IS: 458 - 2003 (amended up to date) marked and pipes from 300 mm and upto 1800 mm manufactured through vertical / vibrated casting process at all depths with Rubber gaskets (EPDM/SBR) for sewer lines as per IS: 5382 (including cost of Rubber gaskets, lubricants) as per drawing, sectional hydro testing of the sewer pipe line (including cost and conveyance of water to site for testing) etc., complete as per specification and / or as directed by Engineer. Note : E/w to be measured and paid separately. Length of pipe shall be measured in between the outer wall of two manholes / Inspection chambers. Pipe in the manhole/inspection chamber’s wall shall deemed to be included in the item of manhole/inspection chamber shall not be payable

350 mm internal diameter

400 mm internal diameter

Providing, jointing, laying, testing and commissioning of HDPE PE- 100/PN-6 (suitable for pulling method for jointing) pipes for sewer line as per IS-14333 by trenchless method adopting any suitable technology below ground at required depth including carriage etc. complete in all respect, construction of thrust pit and receiving pit of required size upto 3 metre depth and soil investigation, making suitable arrangement for barricading of pits, traffic diversion, lights, traffic permission from relevant authority (though department will assist in getting the permission), refilling of pits in compacted layers of 150 mm including disposal of surplus material with all lift and lead upto 50 metre as per specification and the direction of the Engineer.

In all types of soil

250 mm outer dia

315 mm outer dia

400 mm outer dia

450 mm outer dia

500 mm outer dia

Extra for excavation of driven pit/ exit pit / intermediate pit beyond 3 metre depth, required for pushing/ pulling of MS/HDPE/RCC pipe in trenchless technology, with proper protection at three sides with shoring sheets/ wooden planks and ISMB's, maintaining during pushing/ puling of pipe, back filling, necessary de-watering including all machinery, tools, and tackles required as per specification and the direction of the Engineer.

In all types of soil

In rocks

Providing granular bedding having width = outer dia of pipe (Bc) + 500mm, thickness below pipe = 0.25Bc or 100mm (whichever is higher) and haunching = 0.5Bc, with graded hard crusher broken stone of 100% passing through 20mm sieve, 20 to 50 % passing through 10mm sieve and 100 % retain on 6.3mm sieve, laying in layers of thickness 10/15cm including ramming, consolidation etc complete for PVC/HDPE pipes of following sizes as per drawing and or as directed by Engineer.

110 mm nominal dia

160 mm nominal dia

200 mm nominal dia

250 mm nominal dia

315 mm nominal dia

Providing, lowering, laying, aligning, fixing in position at and jointing at all level/ depths ISI marked HDPE pipes of PE-100 grade & PN-6 for potable water as per IS 4984 (amended upto date) in trenches complete with all accessories like Bend, Tee, Reducer, Stub end, End cap etc including all material, labour, testing and commissioning as per Technical Specifications and as per direction of Engineer. Note : E/w to be measured and paid separately.

160 mm dia

Providing and laying plain cement concrete M15 grade (using mechanical concrete mixer) using 20mm graded hard crusher broken stone aggregate, laying in layers of not more than 15cm thick, for bedding having width = outer dia of pipe (Bc) + 200mm or 1.25Bc (whichever is higher), thickness below pipe = 0.25Bc or 100mm (whichever is higher) and haunching = 0.25Bc, for all type of pipes of following sizes, including compaction, curing, form work, etc complete as per drawing and/ or as directed by Engineer.

350 mm nominal dia

400 mm nominal dia

Construction of Manholes

Providing and constructing of pre-cast RCC M-40 grade circular manholes with internal dia 0.56m and depth upto 0.90 m, including concreting PCC M-10 grade (1:3:6) for 225mm thick foundation including curing compaction and foRM work etc complete, PCC M15 for benching and channel portion, PCC M15 for fixing the manhole frame and cover using stone aggregate 20mm Nominal size, 20mm thick inside and outside plaster in C. M. 1:3, inside plaster finished with floating coat of neat cement, vata in CM1:1 around pipe entering and leaving the manhole and also at the junction of masonry and roof. Supplying and fixing heavy duty SFRC manhole frame and cover as per IS 12592 (Part I and II) having clear opening of 560mm, including refilling of Jhiri, including curing, watering, ramming, hydro testing of manhole, conveyance & cost of water, and dewatering complete as directed by the Engineer. Note-Only Excavation work will be measured and paid separately

Providing, fixing and constructing of pre-cast RCC M-40 grade circular manholes with internal dia 1.0m and up to specified depth having pre-cast RCC M-40 grade circular manhole cover frame (ID 0.56m, OD 0.92m), conical piece (top ID 0.56m, bottom ID 1.0m, vertical height 0.805m, wall thickness 125mm), and circular rings of required heights (ID 1.0m, height 150/225/300/600 mm, wall thickness 125mm) below conical piece as per required depth of manhole and having steel reinforcement in conical piece @ not less than 80 kg per cum of concrete, including cast-in-situ PCC M-10 grade (1:3:6) foundation of 1.625m dia and 150mm thickness, PCC M15 grade circular wall ID 0.925m, wall thickness 200mm, height equal to ID of sewer pipe + one wall thickness of pipe + 50 mm (to flush the manhole frame with road top, height of wall can be increased but not more than 100mm), PCC M15 grade benching and channel portion and up to top level of sewer pipe etc complete with curing compaction and form work, supplying and fixing heavy duty SFRC manhole cover as per IS 12592 (Part I and II), supplying and fixing plastic encapsulated CI/MS foot steps / SFRC foot steps, including cost of shuttering, steel reinforcement, testing for water tightness etc. complete in all respect as per drawing, as per specification and the direction of the Engineer. Note:- Excavation of earth work and road cutting for manhole will be measured and paid separately

Pre-cast RCC M-40 grade circular manhole conical piece with inbuilt cover and frame (height 0.805), cast-in-situ PCC M-10 grade foundation, PCC M15 grade circular wall ID 0.925m, wall thickness 200mm, wall height equal to ID of sewer pipe + one wall thickness of pipe + 50 mm, PCC M15 grade benching and channel portion. Depth of manhole shall be measured from top of manhole cover upto lowest invert of pipe. (Depth includes in the item = height of Conical piece + ID of Sewer pipe + 1 Wall thickness of pipe + 50mm)

Providing and fixing pre-cast RCC M-40 grade circular ring of ID 1.0m, wall thickness 125mm, height 150/225/300/600 mm for constructing extra depth of manhole beyond depth mentioned in item no-17.59.1 as per drawing.

Providing, fixing and constructing of pre-cast RCC M-40 grade circular manholes with internal dia 1.2m and up to specified depth having pre-cast RCC M-40 grade circular manhole cover frame (ID 0.56m, OD 0.92m), conical piece (top ID 0.56m, bottom ID 1.2m,vertical height 1.005m, wall thickness 125mm), and circular rings of required heights (ID 1.2m, height 150/225/300/600/900mm, wall thickness 125mm) below conical piece as per required depth of manhole and having steel reinforcement in Conical piece @ not less than 80 kg per cum of concrete, including cast-in-situ PCC M-10 grade (1:3:6) foundation of 1.825m dia and 150mm thickness, PCC M15 grade circular wall ID 1.125m, wall thickness 200mm, height equal to ID of sewer pipe + one wall thickness of pipe + 50 mm (to flush the manhole frame with road top, height of wall can be increased but not more than 100mm), PCC M15 grade benching and channel portion and up to top level of sewer pipe etc complete with curing compaction and form work, supplying and fixing heavy duty SFRC manhole cover as per IS 12592 (Part I and II), supplying and fixing plastic encapsulated CI/MS footsteps / SFRC footsteps, including cost of shuttering, steel reinforcement, testing for water tightness etc complete in all respect as per drawing, as per specification and the direction of the Engineer. Note:- Excavation of earth work and road cutting for manhole will be measured and paid separately

Pre-cast RCC M-40 grade circular manhole conical piece with inbuilt cover and frame (height 1.005), cast-in-situ PCC M-10 grade foundation, PCC M15 grade circular wall ID 1.125m, wall thickness 200mm, wall height equal to ID of sewer pipe + one wall thickness of pipe + 50 mm, PCC M15 grade benching and channel portion. Depth of manhole shall be measured from top of manhole cover upto lowest invert of pipe. (Depth includes in the item = height of Conical piece + ID of Sewer pipe + 1 Wall thickness of pipe + increased height of wall (if any) + 50mm)

Providing and fixing pre-cast RCC M-40 grade circular ring of ID 1.2m, wall thickness 125mm, height 150 /300/600/900mm for constructing extra depth of manhole for depth beyond 1.255m as per drawing.

Providing, fixing and constructing of pre-cast RCC M-40 grade circular manholes with internal dia 1.5m and up to specified depth having pre-cast RCC M-40 grade circular manhole cover frame (ID 0.56m, OD 0.92m), conical piece (top ID 0.56m, bottom ID 1.5m, vertical height 1.305m, wall thickness 125mm), and circular rings of required heights (ID 1.5m, height 150/225/300/600/900/1200 mm, wall thickness 125mm) below conical piece as per required depth of manhole and having steel reinforcement in conical piece @ not less than 80 kg per cum of concrete, including cast-in-situ PCC M-10 grade (1:3:6) foundation of 2.125m dia and 150mm thickness, PCC M15 grade circular wall ID 1.425 m, wall thickness 200mm, height equal to ID of sewer pipe + one wall thickness of pipe + 50 mm (to flush the manhole frame with road top, height of wall can be increased but not more than 100mm), PCC M15 grade benching and channel portion and up to top level of sewer pipe etc complete with curing compaction and form work, supplying and fixing heavy duty SFRC manhole cover as per IS 12592 (Part I and II), supplying and fixing plastic encapsulated CI/MS footsteps / SFRC footsteps, including cost of shuttering, steel reinforcement, testing for water tightness etc complete in all respect as per drawing, as per specification and the direction of the Engineer. Note:- Excavation of earth work and road cutting for manhole will be measured and paid separately

Pre-cast RCC M-40 grade circular manhole conical piece with inbuilt cover and frame (height 1.305), cast-in-situ PCC M-10 grade foundation, PCC M15 grade circular wall ID 1.425m, wall thickness 200mm, wall height equal to ID of sewer pipe + one wall thickness of pipe + 50 mm, PCC M15 grade benching and channel portion. Depth of manhole shall be measured from top of manhole cover upto lowest invert of pipe. (Depth includes in the item = height of Conical piece + ID of Sewer pipe + 1 Wall thickness of pipe + increased height of wall (if any) + 50mm)

Providing and fixing pre-cast RCC M-40 grade circular ring of ID 1.5m, wall thickness 125mm, height 150/225/300/600/900/1200mm for constructing extra depth of manhole beyond depth mentioned in item no-17.61.1 as per drawing.

RCC Vent Shaft

Providing, fixing and erecting precast RCC (M20) Vent shaft with cowl, 125mm and 225mm internal and external dia respectively at top, 300mm and 450mm internal and external dia at bottom and 9.0m over all length, bottom 1.175m below ground level fixed in the pit 900mmx900mmx1500mm with PCC M15, 250mm in bed and minimum 200mm all around with top 150mm in PCC M15 with 20mm nominal size graded stone aggregate , junction of vent shaft and concrete grouted with cement mortar 1: including making connection with sewer manhole with 150mm dia NP4 RCC pipe (IS 458-ammended upto date) as required including Type-A bedding complete as per standard design and finished with water proofing cement of approved brand as per drawings and/or as directed by Engineer. Note : Only Excavation work will be measured and paid separately

Survey for identify the Existing Underground utilities: Field survey using Geo-radar system & Total Station for GIS mapping, collecting of data and plotting the details on digital map of Existing Underground utilities for a width of 15 m including supply of detailed drawings of lanes in appropriate scale & A-2 size in soft copy & Hard copy complete all respect. Beyond 5 Km

Drop Manholes

Providing PVC-U pipes as per IS 15328 drop connection externally for depth from 0.60 m and upto 1.0 m drop from branch sewer line to main sewer manhole or vice versa including inspection and cleaning eye, PVC-U drop pipe and bend encased around with cement concrete M15 with all form work, cutting holes in walls and making good with brick/ stone masonry work in cement sand mortar 1:4 plastered with cement sand mortar 1:3 with stiff cement mortar 1:1 around PVC-U pipe in masonry wall, making required channels complete as per standard design and specifications and/ or as the directed of the Engineer:

200 mm dia

250mm dia

Extra for additional drop depth of PVC-U pipes as per IS 15328 drop connection beyond 1.0 m complete as per standard specification and the direction of the Engineer. (To be paid for actual depth beyond 1.0 m)

200 mm dia

250 mm dia

House Sewer Connections

Constructing providing and fixing of pre-cast RCC M-40 grade circular Road Side Inspection Chamber including earthwork using sulphate resistant cement with following dia and depth cylindrical piece with 100mm wall thickness, 100mm base slab, inbuilt cover & frame on top, provision for 110mm OD in and out sewer connection with making proper in built benching and channel with PCC M-15 grade including providing cast-in-situ 100mm thick foundation of PCC M-10 grade, supplying and fixing circular precast SFRC Circular 300 mm dia manhole cover with frame - M.D. - 10, including steel reinforcement minimum @ 80kg/cum, testing for water tightness complete in all respect as per drawing, specification and the direction of the Engineer.

Pre-cast Road side inspection chamber of 450mm dia (internal), 450mm depth and 750mm dia base foundation

Pre-cast Road side inspection chamber of 450mm dia (internal), 600mm depth and 750mm dia base foundation.

Pre-cast Road side inspection chamber of 450mm dia (internal), 900mm depth and 750mm dia base foundation.

Providing at site, lowering & laying in trenches, aligning & jointing of PVC-U pipes (SN 8) as per IS 15328 (amended up to date) and as per specifications with rubber rings with socket and spigot joint, (EPDM/SBR) for all depths for pipe length as per drawing and specification including hydraulic field testing (including the cost and conveyance of water to site for testing) and commissioning etc complete as directed by Engineer. Note : E/w to be measured and paid separately.

110 mm Nominal dia

160 mm Nominal dia

Empting of septic tank/ soakage well etc, disposing of sludge within a lead of 5km and taking out sewage including refilling with local earth, ramming and compaction in layers, cleaning of site.

House Service Connection (HSC)

Construction of House Sewer Connection inside and outside of a dwelling properties to connect all the outlets of Kitchen, Bath, toilet/WC of the property to existing inspection chamber of Sewer Network, which includes Door-to-door survey of all properties to be connected with Sewer Network, Preparation of sketch / drawing of arrangement for each house with all the details and obtain approval from Engineer In charge or his representative and Preparation of as built drawing (Layout plan) in AutoCAD for each property / dwelling connection with sewer network up to manhole. Including Dismantling of all type of flooring and roads, i.e. BT/CC/WMM/interlocking block etc with mechanical cutter. Including Required Excavation of pipe trench/chamber in all type of strata of specified width up to all depth, Providing, laying, jointing and aligning of PVC-U pipes (SN-8) as per 15328 (amended up to date) / HDPE DWC (double wall corrugated) pipes of SN-8 grade as per IS 16098 (amended up to date) with required PVC/ DWC fittings with required level & location in buried position over bedding of 50 mm thick M-10 grade and in open position above ground/floor with an encasing of pipe 50 mm cover at 3 sides with M10 grade concrete, Providing, laying, jointing and aligning 160 mm dia PVC-U pipes (SN-8) as per IS15328 (Amended up to date) providing as sleeve to 110 mm dia PVC-U pipes / HDPE DWC (double wall corrugated) pipes (exposed to atmosphere) for crossing open drains, demolishing, If required and reconstruction of drain in original position with PCC M-10, Brick work with modular extruded burnt fly ash clay sewer bricks (Conforming to IS: 4885 - 1988) in CM 1:4, 12 mm thick plaster in CM 1:3 and Construction of 2 Nos brick masonry chamber of bricks class designation 75 of 115 mm wall thickness in cement mortar 1:4, clear inside dimension 320 x 320 x 550 mm, 50 mm thick base PCC 1:3:6, providing & fixing 350 x 350 mm RCC precast cover with frame of LD-2.5, earth filling in gaps, finishing with PCC 1:3:6 inside the chamber, Chamber-1 with square mouth S.W. gulley trap P-type of size 100 x 100 mm as per IS 651: 1992 (amended up to date) with CI grating, in slope around the mouth of Gulley Trap including provision for fixing of 2 nos. 110 mm dia PVC-U pipe etc. to connect a single inlet after connecting all the outlets of kitchen & bath & outlet of this chamber will connect to Chamber-2 or inspection chamber and the Chamber-2 with a provision for fixing of 2 nos. 110 mm dia PVC-U pipe etc. i.e. a single inlet after connecting all outlets of toilet & WC of premises to exiting Inspection chamber, Emptying of septic tank/soakage well etc. disposing of sludge within a lead of 5 Km and taking out the sewage, Bypass of septic tank/soakage well by providing, laying, jointing of 110 mm dia PVC-U pipes for all length from inlet to outlet, including PVC coupler, MS clamp and dismantling, repairing, making good the holes etc, Making connection with 110 mm dia PVC-U pipe with exiting inspection chamber (including making holes in Inspection Chamber) for pipes coming out from inside property and Chamber 1/2, making and repairing holes with CM in 1:4, repairing of floor and road with CC M30 grade same as original thickness of floor and road, watering, backfilling, compaction and disposal of all surplus material and sewage etc. to a suitable location with all lead and lift, repairing of underground utilities, if damaged, Complete job to connect a dwelling premises to sewer network including all material, labour, taxes, charges etc. as per Specifications, drawing and directions of Engineer In charge

original position with PCC M-10, Brick work with modular extruded burnt fly ash clay sewer bricks (Conforming to IS: 4885 - 1988) in CM 1:4, 12 mm thick plaster in CM 1:3 and Construction of 2 Nos brick masonry chamber of bricks class designation 75 of 115 mm wall thickness in cement mortar 1:4, clear inside dimension 320 x 320 x 550 mm, 50 mm thick base PCC 1:3:6, providing & fixing 350 x 350 mm RCC precast cover with frame of LD-2.5, earth filling in gaps, finishing with PCC 1:3:6 inside the chamber, Chamber-1 with square mouth S.W. gulley trap P-type of size 100 x 100 mm as per IS 651: 1992 (amended up to date) with CI grating, in slope around the mouth of Gulley Trap including provision for fixing of 2 nos. 110 mm dia PVC-U pipe etc. to connect a single inlet after connecting all the outlets of kitchen & bath & outlet of this chamber will connect to Chamber-2 or inspection chamber and the Chamber-2 with a provision for fixing of 2 nos. 110 mm dia PVC-U pipe etc. i.e. a single inlet after connecting all outlets of toilet & WC of premises to exiting Inspection chamber, Emptying of septic tank/soakage well etc. disposing of sludge within a lead of 5 Km and taking out the sewage, Bypass of septic tank/soakage well by providing, laying, jointing of 110 mm dia PVC-U pipes for all length from inlet to outlet, including PVC coupler, MS clamp and dismantling, repairing, making good the holes etc, Making connection with 110 mm dia PVC-U pipe with exiting inspection chamber (including making holes in Inspection Chamber) for pipes coming out from inside property and Chamber 1/2, making and repairing holes with CM in 1:4, repairing of floor and road with CC M30 grade same as original thickness of floor and road, watering, backfilling, compaction and disposal of all surplus material and sewage etc. to a suitable location with all lead and lift, repairing of underground utilities, if damaged, Complete job to connect a dwelling premises to sewer network including all material, labour, taxes, charges etc. as per Specifications, drawing and directions of Engineer In charge.

For pipe length upto 5 meter

For For pipe length 5-10 meter

For pipe length more than 10 meter

Repairing of water connections and water lines damaged during laying of sewer lines

Providing, lowering, laying & jointing MDPE/ HDPE pipes (Class-PE 80) PN 12.5 composite pipes for extra length for house service connections as per drawing and specifications complete including all material, labour, testing and commissioning as per Technical Specifications and as per direction of Engineer.

With MDPE pipe

20 mm dia service pipe

Providing, lowering, laying, aligning, fixing in position at and jointing at all level/ depths ISI marked HDPE pipes of PE-100 grade & PN-6 for potable water as per IS 4984 (amended upto date) in trenches complete with all accessories like Bend, Tee, Reducer, Stub end, End cap etc including all material, labour, testing and commissioning as per Technical Specifications and as per direction of Engineer. Note : E/w to be measured and paid separately.

Drain Covers

Providing and fixing of reinforced Ferro-Cement drain covers designed for 'A' class loading duly marked on cover with adequate steel reinforcement having thickness 75mm to 150mm anti corrosive bitumen painted M.S. plate , Rim and M.S. lifting hooks, Admixtures like plasticizer, bond improving compound, shrinkage, resistance compound, abrasion resistant complete as per approved design etc.

Standard Size 600x800mm (75mm thick) for span 300 to 450mm

Standard Size 1000x800mm (100mm thick) for span 451 to 700mm

Standard Size 1500x600mm (125mm thick) for span 701 to 1200mm

Providing and fixing precast dense cement concrete M-20 Grade (Vibro-pressed) drain section block of different size as per approved drawing, design and strength as per IS:2185 (part I) of grade 'D' (5.00 N/mm2) proper quality of additive/admixture like plasticizer etc. added to produce high quality and durable drain section Blocks of 'L' shape 'U' shape etc. over 50mm thick CC M15 base course with fixing and joining with C.M.1:4 in proper grade and level complete in all respect. (cost of earth work, steel & welded mesh shall be paid extra).

80mm thick

Nallah/ Drain Crossing

Cleaning and removal of earth, silt, sludge, kankar, boulder, building material and garbage in existing nallah/drains including construction of bye pass arrangement to byepass water with 1.5m lift from ground level and lead upto 50 m including foul & saturated condition where pumping out or bailing out of water is required, including shoring, shuttering where required and dewatering. Making access for disposal and dressing disposal side as per the directed of the Engineer.

For Depth upto 1.50 m

For depth above 1.50 m and upto 3.00 m

For depth above 3.00 m and upto 4.50 m

For depth above 4.50 m and upto 6.00 m

Brick work with FPS bricks of class designation 75 in foundation and plinth in:

Cement mortar 1:4 (1 cement : 4 coarse sand)

Random rubble masonry with hard stone in foundation and plinth :

Cement mortar 1:4 (1 cement : 4 coarse sand)

Cement plastering including T&P, scaffolding, material and complete labour, including cost of water, curing, racking of joints etc. with 20 mm cement plaster of mix : including Providing /mixing of synthetic fibers compulsorily complying with IS 16481:2022 of 06 mm/12 mm length to be mixed @ 0.25% by weight of Cement i.e. 125 gms per 50 kg Cement up to 900 gms per cum of Concrete/ mortar

1:4 (1 cement : 4 fine/ coarse sand)

Clearing and grubbing road land including uprooting rank vegetation, grass, bushes, shrubs, saplings and trees girth up to 300 mm, removal of stumps of trees cut earlier and disposal of unserviceable materials and stacking of serviceable material to a lead of 50 metres from road boundary including removal and disposal of top organic soil not exceeding 150 mm in thickness as directed by Engineer.

In area of light jungle

Pumping out water caused by springs, tidal or river seepage, broken water mains or drains and the like.

Providing and erecting direction and place identification retro-reflectorised sign as per IRC:67 made of encapsulated lens type reflective sheeting vide clause 801.3, fixed over aluminium sheeting, 2 mm thick framed to angle iron 40x40x5mm with area not exceeding 0.9 sqm supported on a mild steel single angle iron post 75 x 75 x 6 mm firmly fixed to the ground by means of properly designed foundation with M15 grade cement concrete 45 x 45 x 60 cm, 60 cm below ground level as per approved drawing including all material, labour.

Arrangement of water proof tent, carpeting, VVIP arrangements of rest room, stage erection with back drop & flower decoration etc for Laying of Foundation Stone/ inaugural function etc for MoRTH/ State projects through event management team complete by providing Foundation Stone Touch Panel.

SITC of star rated Aluminium wound distribution Transformer of following rating 11/0.433KV Delta-Star Connected, Vector Group Dyn 11,ONAN Cooled & as per BEE star - 1 & BIS approved as per IS 2026- 1977 & losses as defined as per 2014 (Fourth Revision) Level-1 . including standard accessories like conservator, silica gel breather, radiator, fins, HT cable box & LT cable boxes, temperature rise in winding/oil 35-40 degree C upto 200 KVA & 40-45 degree C for above 200 KVA, ISI marked drain valve, Dial type Temperature gauge, first filling of transformer oil as per IS :335-1953, Epoxy based paint, including carrying of pre-commission Testing & Charging of Transformer complete in all respect . The Transformer shall be subjected to routine factory tests (as per IS:2026 and IS:1180) including testing from CTL of discom before charging of transformer & complete installaion must be certified from Electrical Inspectorate office as per Indian Electricity rule, (CTL testing charges and Electrical Inspection charges shall be reimbursed by the department to the contractor). All as per pre approved by Engineer in-charge. For additional technical parameters of products/ work , refer Annexure "A" attached with this BSR .

315 KVA with Off -LTC (+5% to - 10% @ 2.5%)

Providing & Laying XLPE insulated three core Armoured Aluminium cable for working voltage 11 K.V.(E) confirming IS :7098 P - 2 with H4- Grade electrolytic aluminium conductor confirming to IS: 8130 class-2 of purity >99.6 %, Insulation Screening: Extruded Semiconducting Compound followed by helically wrapped Copper Tape, round / flat strip armouring of cables , Inner / outer sheath PVC type ST-2 confirming to IS:5831 in existing RCC / Hume / Stoneware / PVC pipe/ open duct/cable trench / Cable tray including testing etc. as required of following size. OEM must have it's own in house NABL accrediated Laboratory for testing procedure as per IS:10810 All as per pre approved by Engineer in-charge. For additional technical parameters of products/ work , refer Annexure "A" attached with this BSR .

3 core 150.0 Sq.mm

Supply, installation, testing and commissioning of MNIE approved off Grid Solar Panels for running of motor pumps with 25 years of Linear Generation warranty, Work includes designing of solar panel area and MS fabricated structure 120 micron hot dip galvanized iron, showing arrangement of panel In available space and installation of PV module on frame structure such that minimum height of lower edge of panel shall be 4.0 mtr from ground level to safeguard against damage and theft as per indicative drawing enclosed with the bid document. The foundation of structure shall be in ACC Mounting structure shall be suitably designed to withstand wind velocity up to 150km/hr. The work shall be executed as per detailed technical specfications, approved drawing and direction of Enginees in-charge. Note There shall be 5 year service warranty for solar panel and mounting structure and suitable provision shall be included in tender document.

Sewage Treatment Plant

Designing (hydraulic, process, structural and aesthetic), providing, construction, hydraulic testing, commissioning and giving satisfactorily trial run of STP consisting of Inlet Chamber, Screen chamber, Grit Separator, MBBR (Based on technologies providing attached growth on plastic media kept suspended in the sewage due to low density of plastic & provided with diffused air for aeration with tank Secondary Clarifier, Sludge collection sump. Gravity Sludge Thickener, Chlorine Contact Tank, Chlorinator room, Sludge Dewatering Equipment, associated piping work with required valves, gates, drains, Administration Block cum Laboratory, associated buildings, Laboratory Equipments, inclusive of mandatory spare parts and instrumentation, etc. complete as turnkey job with all involved civil, electrical instrumentation and mechanical works inclusive of following items, units as per detailed specifications for civil, electrical, instrumentation and mechanical components with all duties and taxes etc. complete to achieve BOD < 10ppm,COD<50 ppm, TSS < 10ppm, Biological TN < 10ppm & PO4 < 2ppm to get recyclable quality of water for industrial / agricultural purposes. The Coagulant Dosing System is mandatory for chemical phosphorus removal. All units shall be interconnected with administration building by Suitable or RCC overhead walkways. Min. freeboard of 0.3m shall be maintained unless otherwise asked for 0.5m stipulated for specific units

PRIMARY TREATMENT Inlet Chamber:Designing, providing, and constructing RCC (M:30) inlet chamber for the peak flow as per CPHEEO Manual including necessary excavation in all types of strata including walkway all around the periphery. Inlet chamber having minimum HRT of 60 seconds, each compartment will have steel gates with extension rod, head stock operating wheels. Gl pipe railing etc. The work includes providing and making necessary arrangements to connect the flow to screen chamber by approach channel as directed and as per specifications including Sewerage Pumping (If required). Screen Chamber:Designing, providing, constructing, testing and commissioning of Two approach channels (min 4.5 m long), mechanically cleaned bar rack screen (6 mm clear opening 10 mm the flats), Escalator screens, with 100% standby manual fine screen (10 mm clear opening) MOC: SS316, Cl sluice gates (one before screen & one after screen), designed as per CPHEEO Manual in RCC (M-30), including inlet pipe channel from inlet chamber, outlet pipe / channel to detritus tank, free board of 0.5 m minimum, RCC walkway 1.2 m wide with GI pipe railing. RCC stair case of 1.2 m width from GL to screen chamber, with operating platform and belt conveyor system incl. panel & push bottom switch at local level as well as MCC room for two way control.

Grit Chamber:Designing, providing and constructing grit Chamber- Detritus or vortex type or aerated type (100% standby), mechanically operated in RCC ( M 30) capable of removing 100% of 0.2 mm size particle and above, having specific gravity 2.65, HRT of 1 minute at average flow (Detritus Tank), horizontal velocity not exceeding 0.30 m/sec (Detritus Tank) at peak flow with suitable arrangement of separation of grit from putrescible solids. Inlet and outlet channels of required sizes as may be required to connect the flow to connecting unit etc. Complete including hydraulic testing for water tightness of structure having minimum FB of 0.3 m, wash out arrangement to Grit chamber and platform 1.2 m wide RCC walkway with Gl pipe handling shall be provided. A pit for collecting grit conveyed by conveyor shall be provided. It should be suitable to handle the grit for carting. All arrangements shall be as detailed specifications and as directed. Parshall flume having head loss limited to 0.15 m with necessary flow measuring devices/meter consisting of digital indicator in LPS & MLD

SECONDARY TREATMENT Distribution Chamber Distribution chamber with CI/DI sluice gates for each basin of MBBR and bypass chamber, min. 3m x 2m of required depth, operating platform with CI/DI pipe to connect to MBBR basins. Bypass pipe from distribution chamber upto inlet of CCT shall be provided in RCC pipe with manholes and DI sluice gates. MBBR Tank Minimum Total HRT of 6.0 hours (at average flow with Aerobic Detention Time - 4.5 Hrs & Anoxic Detention Time -1.5 Hrs), Designing. providing & constructing in RCC (M-30) biological reactor tank for removal of BOD and T-N to handle the average flow & having hydraulics suitable to handle peak flow conditions with suitable 1.2m wide walkway, expansion joints as required, including foundation etc as per specifications. The tank shall be equipped with inlet & outlet arrangement, process air blowers for supply of air, fine bubble diffusers of EPDM material/Coarse bubble aeration grid in SS-304, PP (virgin plastic material of minimum 600 m2 specific surface areal m3) carrier bio media etc. FB of 0.5m & SWD as required should be complete as per detailed specifications. The outlet of tank shall be provided with strainer (SS-304) for preventing escape of Media from the tank. (One unit upto 10 MLD and two units for more than 10 MLD) Air pipe of GI and Sub water pipe of SS316 material. Volume of the bio media shall not be less than 20% of the volume of the tank. Process air blowers of rotary twin lobe shall be capable of providing adequate oxygen for biological process to maintain minimum DO of 2 mg/lit in MBBR basin and also to keep media in suspension. In addition there would be internal sludge recirculation facility from Aerobic Tank to Anoxic Tank as per standard Design practice. Process Air Blowers or aeration Device

The Plant should be based on Dissolved Oxygen/Oxygen Uptake Rate Control with VFD driven Aeration Device. The Aeration System shall be designed for 110% Capacity of the design Air requirement. The aeration Blower/Aeration Device shall be having 100% installed standby unit. Air diffuser shall be of disk/ tubular type, fixed/retrievable. The wetted part of the aeration system of non-corrosive materials such as UPVC. Blowers shall be housed in process air blower building. The minimum area of the building is 20 sq.m. and height of 5m (min). The surface Aerators are not acceptable

Secondary Clarifier Designing, providing & constructing in RCC (M-30) water tight secondary clarifier as per design guidelines by CPHEEO manual. The settler shall be provided with a scraper mechanism in MS with epoxy painting for collecting the settled solids at the bottom. The sludge will be collected in sludge sump by gravity & supernatant will flow over a weir & will be collected in a launder. Return Sludge Pump House - wet well with minimum HRT of 60 minutes upto flow of 80% of return sludge capacity and depth of sludge to be limited to 2m, separate panel room outside wet well, 100% standby pumps. Raw sludge pump house Sump with minimum HRT of 30 minutes & depth of sludge limited to 2 m, 4.5 m minimum diameter, separate panel room outside the wet well

TERTIARY TREATMENT Coagulant Dosing System/Flash Mixer + Flocculation + Setting Tank/ Clariflocculator. The design values of the tertiary treatment units are to be considered from CPHEEO Manual on Water Supply & Treatment Flash Mixer Rapid mixing device design confirming to IS: 7090 of 1985. Detention time 60 sec, velocity gradient 300-400 sec-1 with fans gear and motor assembly as per design. Coagulant Dosing System Dosing Tanks-2Nos. With mixing, carrying, dosing with piping arrangement. Chemical Storage area as per data/specifications Flocculation Tank RCC Hopper bottom units having slope >45 Deg as per hydraulic and process design with detention period 20 minutes with flocculator paddles with gear and motor assembly as per design. Flocculator design conforming to IS: 7208-1974 (Type-C). Surface loading rate 8000 liters/hour/sq.m and depth 2.5m using PVC media with supporting arrangement and sludge collecting pipes as per detail specifications

Filter Feed Sump & Pumps Pressure Sand Filters for STP capacities less than 10MLD Rapid Sand Gravity Filters with shed Applicable to plant capacity above 10MLD only. Filter House (RCC framed structure with infill brick masonry walls) and RCC filter beds with sand and gravel bedding as per hydraulic and process design adopting 6000 Liters/hour/sq.m. Filtration rate with 2m water above sand media with under drainage system and inlet, outlet, backwash (rate 600LPM per Sq.m.) piping, pipe gallery, platform min. 5.5m in width and valves/gates arrangement as per design and detail specifications. a. Filter Sand Effective size 0.45 to 0.7 mm, uniformity coefficient not more than 1.7 nor less than 1.3, depth of sand 0.75m, free board 50cm, gravel 0.45m in depth, sand and gravel confirming to IS: 8491 (i)- 77, backwash by air wash (if specified) and hard wash by water, standard appurtenances (to be specified), rate of flow controller, filter gauge, sand expansion gauge, etc.

Wash Water Tank Wash Water tanks of capacity equal to 2% of designed quantity of filtered water in a day (+) 10% with 8 to 10 Mtr. Head (as specified) Wash Water Pumps Wash Water Pumps with 100% Standby Air Blowers Capable of delivering 750 to 833 LPM per sq.m of free air flow area at 0.35 to 0.4 Kg/sq m at the under drains (100% standby) (For capacity of PF more than 10 MLD) Valves/gates Inlet, outlet, wash water inlet-outlet and all types and sizes of valves/gates as per design of specified make/brand. All types gauges and meters required for filter operatins and backwashing etc. The filtration systme could also be well tested cloth media disk filtration

DISINFECTION Chlorine Contact Tank Designing, providing and constructing chlorine contact tank of adequate capacity to deal with average flow. The CCT shall have baffle walls for enhancing mixing of chlorine. One unit of two compartments, contact time 30 minutes of average flow to achieve 99.99% reduction in coliform Chlorine dosage shall be minimum 5 ppm provision including designing, providing & constructing water supply system for chlorination, chemicals preparation, domestic use, gardening etc. complete. Chlorinator & Chlorinator Room / Tonner Room Designing, providing and constructing vacuum type chlorinators having adequate capacity for dosage of adequate chlorine to ensure 99.99% coliform reduction as per obligatory provisions detailed specifications with necessary provision of having chlorinator room of adequate size The chlorinator (min. 1W+1SB) equipment shall include chlorine cylinders, tonners, piping, valves, measuring controlling equipments, safety devices, lifting equipment, chlorine booster pumps (min. 1W+1SB) etc. complete as per IS-10553 (Part-II). The tonner room should have min 3 MT capacity crane for loading & unloading facility, neutralization pit. Tonner storage should be distinctly isolated and should have min. storage space for 15 days as per the detailed specifications & as per gas law & factory act shall be provided. Chlorination room of minimum 25 m2 area shall be provided. All other matching amenities shall be provided, 5 MT gantry rail shall be provided for full length of tonner room a 6 m Ht from level of tonner room with outlet.

Sludge Treatment Gravity Sludge Thickener Solids loading rate of 25-35 kg/m2/day, Designing, providing & constructing watertight of sludge thickener-gravity type (picket fence) in RCC (M-30) with inlet & outlet pipes, central feed well, sludge it & sludge removal arrangement, grouting wherever necessary with walkway all around of 1.20m with GI pipe railing interconnecting Cl pipes all complete as per specifications, having bottom slope 1:6 & min. 4.5m SWD with necessary fixed bridge scraper arrangement as per detailed specifications & necessary inlet & outlet arrangement. All other arrangement as per detailed specifications. (One unit upto 10 MLD and two units for more than 10 MLD). Min sludge concentration in thickened sludge shall be 5%. Sludge Holding Sump Minimum HRT of 4 hours, Designing, providing and constructing of sludge holding sump and pump for discharging sludge to centrifuge using Cl pipe complete as per detailed specification. Agitators/Mixers shall be provided in sump for keeping sludge in suspension. The pump shall be of Helical Screw pumps, 100% standby. Sludge Dewatering Equipment Room with Centrifuge or belt press or screw press or Filter Press or Combi-machine or Bag Type: Designing, providing constructing and installing including foundation etc. Centrifuge or belt press or screw press or Filter Press or Combi- machine or bag Type to handle the sludge flow as per specifications, with appropriate inlet and outlet provision, sludge dewatering unit drain etc. Complete as per specifications.

Sludge/filtrate Pumps a) Capacity to pump sludge in 1 hour with 100% standby (20-25% efficiency, "C" value to be adopted 50% than that of water to calculate friction loss) b) Filtrate from thickening and dewatering to be conveyed only by PVC 10 kg/sq cm Valves/gates Inlet, outlet wash water inlet-only CI D/F and minimum size of 200 mm as per approved make/brand. All types gauges and meters required for O & M as per design of specified make/brand. Dewatering during entire work using any technique. Necessary Instrumentation and control as per specifications

Outfall Sewer It shal be designed for peak flows. Designing, providing, constructing appropriate sized outfall sewer of RCC (NP2 class) pipe to dicharge treated effluent to the local water body/nallah at the point shown on the drawing including necessary chambers for inspection & cleaning including excavation, dewatering, refilling including appropriate bedding. Piping work including Valves and Gates Providing, laying and jointing plant pipes as per specifications, including interconnection bypass arrangement etc. of treatment units including adequate numbers of manhole chambers. The item includes excavations, refilling & hydraulic testing of pipes, valves, gates, accessories & cost of jointing materials. The item includes required channels with gates or interconnection of units, etc. for all units as directed etc. complete as per detailed specifications. Sludge pipes shall be sized for maintaining minimum velocity for prevention of solids. Administrative Building cum Laboratory (G+1): Designing, providing and constructing administrative building, office cum Laboratory including stores. This shall be a building having appropriate carpet area and ground floor and at first floor complete as per specifications including necessary excavation, foundation in RCC M 200 framed structure B. 8 masonry (11- class in C.M. 1:6) 20 mm cement plaster in C.M 1:3 inside and outside painting. Aluminium door and window with glass panels & SS wire mesh, mosaic tile flooring and skirting and all other allied items, fixtures fastening electrification arrangement water supply arrangement etc complete.

a) Ground floor to accommodate administrative office & laboratory b) First floor to accommodate Office of the Plant In Charge, air monitoring equipments to measure wind direction & speed, hydrogen sulphide concentration etc. Laboratory equipments Laboratory equipment (as per specifications), beautification, telephone and intercom arrangement and wireless system Furniture and Office Equipments, Office furniture (Make: Godrej/or similar approved quality) as per specifications. Ventilation and Safety equipments as per specifications Sanitary blocks Capet area-15 square meter minimum up to 25 MLD and 25 square meter above 25 MLD (or as specified) Maintenance Workshop of size as per specification Air blower Building with Air Blowers: Capable of delivering adequate free air for aeration device with suitable pressure (100% standby)

MCC Room of minimum 9 m x 6 m clear inside with safety measures, approval of various statutory/central/foreign authority as applicable Electric Installation: Both internal and external including entire plant area as per technical specifications. DG set shall be provided for min. 50% of electrical load on average flow condition. DG room shall be provided. Instrumentation shall be provided in the plant which includes level sensors, DO sensor, residual chlorine analyser, pressure gauges, flow meters, level switches, pressure indicating and temperature transmitters, alarms, etc. Maintenance workshop of size 5m x 4m x 3.5m shall be provided.

General Infrastructure Development: Scope also includes, Designing, providing and constructing general infrastructure development such as internal roads of minimum 6 mtr wide, compound wall for STP site, internal street and building lightings, pathways of minimum 1 m wide to access all STP units and Entrance Gate in MS fabrication, etc. all complete as per specifications and directed by engineering in charge. Internal roads Asphalt road (Minimum 4.5 ) to connect all units from main gate of plot. Compound Wall as per the plant layout, lohng the boundary of STP site (considering plant layout for intermediate and ultimediate and ulimate build out capacity and 33% landscaping area). Green Belt (33% Landscaping area) as per specification Outlet Parameters shall also include (TN<10 ppm, Nh3N<2 ppm and TP<1 ppm) with full automation including PLC-SCADA and Instrumentation, Reuse arrangement including Storage i.e GLR (2 Hours pumping on average flow) , OHSR (4 Hours pumping on average flow) and Pumps of required capacity with all necessary attachments.

Designing, providing, constructing, hydraulic testing, commissioning and giving satisfactory trials of STP for inlet Sewage parameters BOD=300, COD=600, TSS=600, TKN 55, pH= 6.5 to 7.5 based on SBR technology consisting of Inlet Chamber, Screen Chamber, GritDetritus Tanks and Biological CASP Basins, Chlorine Contact Tank, Chlorinator with Chlorinator shed & tonner Shed, Chemical Storage & Dosing shed with dosing Equipments, Sludge Sump, Gravity Sludge Thickener, Sludge dewatering system equipment and building, sludge storage shed, necessary piping work with required valves, gates, storm water drains and rain water harvesting system, bypass drains, roads & pathways, landscaping, Compound wall with gates, Administration Block cum Laboratory, Laboratory Equipments, staff quarters, Tools and Plants, Spare Parts, ESR and Tanker Filling points, Metering Room, Guard Room etc. complete as turnkey job with all involved civil, electrical, instrumentation and mechanical works inclusive of following items, units as per detailed specification for civil, electrical, instrumentation and mechanical components with all duties and taxes, etc. complete to achieve BOD < 10 ppm, COD < 100 ppm, TSS < 10 ppm, to get reusable quality of water for industrial / agricultural purposes. outlet parameters shall also include TN < 10 ppm, Nh3N < 2 ppm and TP < 1 ppm) with full automation including PLC-SCADA and Instrumentation, reuse arrangement (storage - GLR, OHSR and pumps) and treated effluent disposal line for treated water 1 KM as per specifications. (Rates are in Lacs)

Capacity 1 MLD

Capacity 1.5 MLD

Capacity 2 MLD

Capacity 02.5 MLD

Supply, Installation, Testing, and Commissioning of Online Continuous Effluent Monitoring System (OCEMS) for Sewage Treatment Plant Self-Surveillance in Compliance with CPCB Standards Excluding Flow Meter and including device with all accessories complete in all respect for real time data transmission to CPCB & SPCB.

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