Construction of 9 nos. of Deep piezometers in Ground Water Division, Salem

Amount

Engaging of Mazdoor cat -1 for preliminary field investigation, site clearance, cleaning the site after work etc @ 3 Mazdoor for 5 days

Recommended to drill a bore well of 150 mm (6” dia) to a required depth below ground level as directed by the departmental officers 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)

Supplying and erection of PVC pipe suitable to 150mm (6"dia) Bore well, best approved quality with ISI mark with necessary PVC coupling etc., complete complying with standard specifications.

Supplying and fixing of 125mm dia blue slotted pipe for borewells (inner pipes suitable to 6" dia borewell) to the required depth as as directed by the departmental officers etc., complete complying with standard specification.

Supplying and fixing of 125mm dia blue pipe for borewells (inner pipes suitable to 6" dia borewell) to the required depth as 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.

Supplying and fixing of end cap 160 mm for bore well (As per PWD Item No.216C(d))

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 Sand, and six hard broken granite jelly) using 20mm hard broken granite jelly and river sand to the work including curing and finishing etc., complete complying with the standard specifications.

Cement Concrete 1:2:4 (One Cement,two Sand, and four hard broken granite jelly) using 20mm hard broken granite jelly and river sand to the work including curing and finishing etc., complete complying with the standard specifications.

Fabricating and supplying of Protection Box for observation bore well using 5 mm thick M.S. Steel Plates to the dimension of 650 mm * 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 1.80 inclusive of one M.S. Grill gate of size 0.75 x 1.50 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 15 cm c/c. The gate should be of 0.75 x 1.50 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 15cm c/c with necessary aldrop for locking arrangements. The top of all square rods should be made of sharp. 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 includesall cost of materials required, labour charges for cutting threading, bolt and nuts, one coat red oxide with two coats of enamal paint etc complete as directed by the departmental officers.

Supplying and fixing the information Board with 16 guage M.S. Sheet of Size 0.9 x 0.6 m with necessary fixing arrangement, painting two coats over coat of primer wiriting the details of piezometer as directed by the departmental officers. The rate is inclusive of all materials etc.,

Barricading work around the entire work site for laying of Monitoring piezometers using casurina poles at 1.50m centre to centre (8cm to 10cm dia and 1.80m height) vertical with horizontal poles in three rows including painting vertical poles in the way facing sides with ready mix paint, tying the vertical and horizontal poles with coir rope including fixing charges and fixing 75mm dia reflectors including earthwork excavation for fixing vertical posts and finally removing and stacking the material safely for further use etc,. complete and as directed by the departmental officers

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

GST for line items 1 to 16

JOHN KENNADY

BHARATH BOREWELL COMPANY