Providing rain water harvesting system in plot No. 1399-1400, 1493-1494, 1495-1496 and 1497, sector 35-B, Chandigarh.

Earth work in excavation of foundations of bridges culverts, buildings including handling of material with a combined lead of 15 meters dressing of bed and sides stacking the excavated soil from the edge of excavation and subsequent filling around:- (a) For ordinary gravel soil involving pick work. CSR item No. 6.7 (a)

Boring/drilling bore well of required dia for casing/ strainer pipe, by suitable method prescribed in IS: 2800 (part I), including collecting samples from different strata, preparing and submitting strata chart/bore log, including hire & running charges of all equipment’s, tools, plants & machineries required for the job, all complete as per direction of Engineer – in-charge, up to 90 meter depth below ground level. (B) Rocky Strata including Boulders (a) 300 mm dia. CSR item No. 28.91 (B) (a)

Supplying at site of gravel of 1/16" to 1/8" sizes including pouring and packing in the annular space between the pipes assembly and the bore. The gravel should be free from, dust, dirt, or the vegetable manner as per IS 4097/1967 with latest amendments (to be paid as per actual length of pipe) . CSR item No. 28.88

Providing and placing in horizontal layers filtering media screened, washed and cleaned as described below:- (d) Fourth Layer :----- Bajri (Coarse) screened, cleaned and washed and graded from 20mm to 25mm (from Pathankot or approved equivalent quarry). CSR item No. 28.51 (d)

12.5 mm thick cement plaster 1:3. . CSR item No. 15.8

Taking out existing CC interlocking paver blocks from footpath/ central verge/pavement, including removal of rubbish etc., disposal of unserviceable material to the dumping ground, for which payment shall be made separately and stacking of serviceable material within 50 metre lead as per direction of Engineer-in-Charge. CSR item No. 8.3

Providing, Laying , fixing & jointing of P.V.C. Pipes as per ISI-4985 (ISI marked with the prior approval of Engineer-in-Charge) along the Trenches and laying the same in Trenches to correct alignment and gradients, cutting, jointing and testing complete as per specifications. (v)160mm o/d pipe of 10 Kgf. / sqcm. CSR item No. 28.13 (v)

Providing and laying 50 mm thick factory made cement concrete interlocking paver block of M-30 grade machine made rubber moulded smooth finish with strong vibratory process or with vibrohydraulic compaction machine and of approved size and design / shape laid in Ordinary Grey and pattern over and including 40 mm thick compacted bed of coarse sand, filling the joints with fine sand etc, all complete as per directions of Engineer-in-Charge. CSR item No. 14.136

Dismantling concrete (b) Cement concrete plain 1:4:8 or 1:5:10. CSR item No. 8.6 (b)

Cement concrete 1:5:10 (b) With stone aggregate 40mm gauge (ii) mixing by mechanical means using concrete mixer volumetric type. CSR item No. 10.9 (b) (ii)

Earth work in excavation in foundations trenches etc. in all kinds of soil where Pick-Jumper work is not involved and not exceeding 2.0 metres depth including dressing of bottom and sides of trenches, stacking the excavated soil clear from the edge of excavation and subsequent filling around masonry in 15 cm, layers with compaction including disposal of all surplus soil as directed within lead of 30 metres. CSR item No. 6.6