Description: CONSTRUCTION OF PIEZOMETERS 1508 NOS IN SOFT ROCK HARD ROCK AND SUPPLY INSTALLATION COMMISSIONING OF DWLRS AND TELEMETRY ESTABLISHMENT OF DATA ACQUISITION SYSTEM and ITS MAINTENANCE FOR REAL TIME GROUND WATER LEVEL MONITORING Name of Work Construction of 16 piezometer wells in Rajasthan RJ PZ BOQ 1 Soft Rock 100 m
Details: Drilling of pilot hole for PZ from 228.60 mm (9 - 7/8”) to 342.90mm (13 ½”) by rock roller/ drag bit including of hole by drilling & reaming to accommodate 150mm (6”) dia well assembly and recommended size of pea gravel envelop of minimum 100 mm thickness and sample collection and preparation of litholog Electrical logging using 406 mm and 1626 mm (16" and 64") SP resistivity probe, Natural Gamma Logging to target depth of max. 155 m, submission of report including zone-wise water quality, logging graph, interpretation of graph, generation of composite log along with video recording Supply and installation of ERW casing pipe conforming to latest version of IS: 4270-2001 of diameter and thickness given below 150 mm (4”) Nominal Bore, thickness 5.4 mm Supply and installation of LCG V- wire screen conforming to latest version of IS: 8110-2000 of dimensions given:150 mm (6”) Nominal Size thicnkness 5.4mm with slot opening size given below Slot opening 0.75 mm (Stainless Steel SS304
Sector: Ground Water Dept