Construction of 11 Nos. of Deep Piezometers in Ground Water Division, Trichy under National Hydrology Project for the Year 2020-2021.

Amount

Engaging of Mazdoor for preliminary field investigation, site clearance, cleaning the site after work, collection of soil samples, etc @ 3 Mazdoor (piezometer site at Lalgudi, Thiruverumbur, Kolakkanatham, Vayalur, Panjamadevi and Siththanavasal)

Drilling of 150 mm (6” dia) bore wells in hard rock areas to the required depth as directed by the departmental officers including labour charges for inserting casing pipes assembly in the drilled holes, if necessary grouting the casing pipe etc., including transportation charges for the rigs and supporting vehicles from one place to another place (the casing pipe has to be supplied by the contractor at the rates noted in a separate item) (As Per Quotation) (piezometer site at Lalgudi, Thiruverumbur, Kolakkanatham, Vayalur, Panjamadevi and Siththanavasal)

Supply and Erection of suitable PVC pipe for 150 mm (6”Dia) bore well, best approved quality with ISI mark with necessary PVC coupling etc., Complete complying with Standard Specification. (As Per Quotation) (piezometer site at Lalgudi, Thiruverumbur, Kolakkanatham, Vayalur, Panjamadevi and Siththanavasal)

Supply of PVC casing pipes as per IS 12818 / 1992 and as amended from time to time with ISI marking of following diameter in 3m length with screwed and socket end. Complete and as directed by departmental officers. (piezometer site at Lalgudi, Thiruverumbur, Kolakkanatham, Vayalur, Panjamadevi and Siththanavasal)

Supplying and fixing of 125mm blue slotted pipe for bore wells (inner pipes suitable to 6 " Bore well) to the reqired depth as directed by the departmental officers etc., complete complying with standard specification. (piezometer site at Lalgudi, Thiruverumbur, Kolakkanatham, Vayalur, Panjamadevi and Siththanavasal)

Supplying and fixing of 125mm blue pipe for bore wells (inner pipes suitable to 6 " Bore well) to the reqired depth as directed by the departmental officers etc., complete complying with standard specification.

Fabricating and Supplying the encasing cover with 3mm thick M.S. Pipe to protect PVC casing pipe for a depth of 1.50 m of which 0.75 m goes below the G.L. and 0.75 m stands above G.L. including the Red oxide paint. (As per Quotation enclosed)

Supply of 160mm dia Bore cap for bore hole

Earth work excavation for foundation and depositing on bank with initial lead of 10 m & initial lift of 2m in Sand, silt or other loose soil wet sand or silt not under water, light black cotton soil sandy loam and ordinary soil including excavated earth S.S. 20B to a required depth as directed by the departmental officers.

Supplying erection and CENTERING for sides and soffits of plain surfaces such as slab etc., using M.S. Sheets of size 90cm x 60cm BG 10 gauge stiffended etc., complete complying with standard specification.

Cement Concrete 1:3:6 (One Cement,three crushed stone Sand, and six hard broken granite jelly) using 20mm hard broken granite jelly to the work including curing and finishing etc., complete complying with the standard specifications.

Plastering with Cement mortar 1:3, 12 mm thick complete complying with standard specifications

White washing two coats with freshly burnt white shell lime in all floors including cost of lime, blue powder fevicol type gum, brushes, scaffolding charges, etc., complete complying with standard specification and as directed by the departmental officers.

Fabricating and supplying of Protection Box for observation bore well using 5 mm thick M.S. Steel Plates to the dimension of 650 mm x 400 mm. Height of box at rear side is 530 mm and 450 mm at front side. Top cover with projection to be provided with necessary hinges and pad lock arrangement to open and lock the box. Necessary arrangements to be provided at the bottom of the box to embed the box with concrete platform.The cost includes all materials, labour for welding, one coat red oxide primer, painting with two coats of approved enamel paint, Bolt, Nut, Dindigul/Godrej Lock and Key, writing the bore well details on the protection cover and transporting to the following bore well site as directed by the departmental officers.

Supplying of M.S.Grill enclosure of size 1.50 x 1.50 x 2.10 inclusive of one M.S. Grill gate of size 0.75 x 1.80 m as per specifications. The M.S. Grill enclosure should have 5 Nos. of the vertical M.S. Angle of size 40 x 40 x 6 mm for the four corners and one at rear gate. The alround horizontal ties are with three numbers of 40 x 40 x 6 mm M.S. angle one at botton and one at middle and one at top, 16 x 16 x M.S. Square rod are to be provided in between the vertical angles at 10 cm c/c. The gate should be of 0.75 x 1.80 m size with 40 x 40 x6 mm M.S. angle at round and one horizontal at middle including 16 x 16 mm M.S. square rod for vertical at 10cm c/c with necessary aldrop for locking arrangements. The top of Grill Enclosure should be covered with 6 Nos of MS angle of size 40x40x6mm and 13 Nos of 16 x 16 mm square rods.. The entire should be made with bolt and nut arrangements has to attach each side separately and it can be yearly fixed at site. The cost includes all cost of materials required, labour charges for cutting threading, bolt and nuts, one coat red oxide with two coats of enamal paint etc attached with Name board of size 0.90m x 0.60m and using 10 gauge M.S plate of 6mm thick and painting two coats using first quality synthetic enamal paint etc., complete and lettering the name board with best approved quality paint and colour including labour for lettering complete as directed by the departmental officers.

Supplying and fixing of MS clamp for holding 125 mm PVC pipe in borewell platform including cost of materials, labour charges, Conveyance charges as directed by the departmental officers complete complying with standard specification. (as per Quotation)

Flushing Borewell with compressed air/water for collecting geology and hydro geological particulars for the period as directed by the departmental officers.

Engaging of Mazdoor for preliminary field investigation, site clearance, cleaning the site after work, collection of soil samples, etc @ 3 Mazdoor for 5 days(Piezometer Stations-Sendurai,Ponparappi,Aranthangi,Kilkudi,Perumaruthur)

Drilling of Borewell anywhere in Tamilnadu including transportation from one place to other place within Tamilnadu in alluvial soil or sedimentary strata of clay and sand stone, shale, pebbles, boulders etc., by first taking a pilot bore of 140mm/150mm dia and then enlarging to required dia by direct or reverse rotary mud circulation method using contractor’s rig, fuel, labour, drilling, betonite mud and water required for drilling at the site shown by the officers including construction of mud pit (Piezometer Stations-Sendurai, Ponparappi, Aranthangi, Kilkudi, Perumaruthur) Drilling of 140/150mm Pilot bore

Upto 60m depth ending below ground level

From 60m upto 90m depth ending from ground level

From 90m upto 120m depth ending from ground level

Reaming from 150mm Dia Pilot of bore to 300mm dia bore as directed by the Departmental Officers.(Piezometer Stations-Sendurai, Ponparappi,Aranthangi,Kilkudi,Perumaruthur)

Upto 60m depth ending below ground level

From 60m upto 90m depth ending from ground level

From 90m upto 120m depth ending from ground level

Supply of PVC casing pipes as per IS 12818 / 1992 and as amended from time to time with ISI marking of following diameter in 3m length with screwed and socket end. Complete and as directed by departmental officers.(Piezometer Stations-Sendurai, Ponparappi, Aranthangi, Kilkudi, Perumaruthur)

150mm PVC Plain casing pipes

150mm Ribbed Screen pipes

Labour charges for inserting 150mm dia (PVC Casing pipes assembly with slots or without slots) in the drilled hole including jointing the pipes etc.,complete and supplying and packing the annular space with pebbles of size and quality as approved by the departmental officers.(Piezometer Stations-Sendurai, Ponparappi,Aranthangi,Kilkudi,Perumaruthur)

Charges for developing the Borewell with air compressor of 600 CFM capacity (Minimum 8 Hours) including transportation, labour and fuel charges for compressor as directed by the Departmental officers and conducting yield test by ‘V; notch method.(Piezometer Stations-Sendurai,Ponparappi,Aranthangi,Kilkudi,Perumaruthur)

Fabricating and Supplying the encasing cover with 3mm thick M.S. Pipe to protect PVC casing pipe for a depth of 1.50 m of which 0.75 m goes below the G.L. and 0.75 m stands above G.L. including the Red oxide paint. (Rate as per Quotation)(Piezometer Stations-Sendurai,Ponparappi,Aranthangi,Kilkudi,Perumaruthur)

Supply of 160mm dia Bore cap for bore hole.(Piezometer Stations-Sendurai, Ponparappi, Aranthangi,Kilkudi,Perumaruthur)

Earth work excavation for foundation and depositing on bank with initial lead of 10 m & initial lift of 2m in Sand, silt or other loose soil wet sand or silt not under water, light black cotton soil sandy loam and ordinary soil including excavated earth S.S. 20B to a required depth as directed by the departmental officers.(Piezometer Stations-Sendurai,Ponparappi,Aranthangi,Kilkudi,Perumaruthur)

Supplying erection and CENTERING for sides and soffits of plain surfaces such as slab etc., using M.S. Sheets of size 90cm x 60cm BG 10 gauge stiffended etc., complete complying with standard specification.(Piezometer Stations-Sendurai,Ponparappi,Aranthangi,Kilkudi,Perumaruthur)

Cement Concrete 1:3:6 (One Cement,three crushed stone Sand, and six hard broken granite jelly) using 20mm hard broken granite jelly to the work including curing and finishing etc., complete complying with the standard specifications.(Piezometer Stations-Sendurai, Ponparappi,Aranthangi,Kilkudi,Perumaruthur)

Plastering with Cement mortar 1:3, 12 mm thick complete complying with standard specifications.(Piezometer Stations-Sendurai, Ponparappi,Aranthangi,Kilkudi,Perumaruthur)

White washing two coats with freshly burnt white shell lime in all floors including cost of lime, blue powder fevicol type gum, brushes, scaffolding charges, etc., complete complying with standard specification and as directed by the departmental officers.(Piezometer Stations-Sendurai, Ponparappi,Aranthangi,Kilkudi,Perumaruthur)

Fabricating and supplying of Protection Box for observation bore well using 5 mm thick M.S. Steel Plates to the dimension of 650 mm x 400 mm. Height of box at rear side is 530 mm and 450 mm at front side. Top cover with projection to be provided with necessary hinges and pad lock arrangement to open and lock the box. Necessary arrangements to be provided at the bottom of the box to embed the box with concrete platform.The cost includes all materials, labour for welding, one coat red oxide primer, painting with two coats of approved enamel paint, Bolt, Nut, Dindigul/Godrej Lock and Key, writing the bore well details on the protection cover and transporting to the following bore well site as directed by the departmental officers.(Piezometer Stations-Sendurai, PonparappiAranthangi,Kilkudi,Perumaruthur)

Supplying of M.S.Grill enclosure of size 1.50 x 1.50 x 2.10 inclusive of one M.S. Grill gate of size 0.75 x 1.80 m as per specifications. The M.S. Grill enclosure should have 5 Nos. of the vertical M.S. Angle of size 40 x 40 x 6 mm for the four corners and one at rear gate. The alround horizontal ties are with three numbers of 40 x 40 x 6 mm M.S. angle one at botton and one at middle and one at top, 16 x 16 x M.S. Square rod are to be provided in between the vertical angles at 10 cm c/c. The gate should be of 0.75 x 1.80 m size with 40 x 40 x6 mm M.S. angle at round and one horizontal at middle including 16 x 16 mm M.S. square rod for vertical at 10cm c/c with necessary aldrop for locking arrangements. The top of Grill Enclosure should be covered with 6 Nos of MS angle of size 40x40x6mm and 13 Nos of 16 x 16 mm square rods.. The entire should be made with bolt and nut arrangements has to attach each side separately and it can be yearly fixed at site. The cost includes all cost of materials required, labour charges for cutting threading, bolt and nuts, one coat red oxide with two coats of enamal paint etc attached with Name board of size 0.90m x 0.60m and using 10 gauge M.S plate of 6mm thick and painting two coats using first quality synthetic enamal paint etc., complete and lettering the name board with best approved quality paint and colour including labour for lettering complete as directed by the departmental officers.(Piezometer Stations-Sendurai, PonparappiAranthangi,Kilkudi,Perumaruthur)

GST for line items 1 to 32.

BHARATH BOREWELL COMPANY