GTC912 Rehabilitation of Existing Groundwater Recharge Wells (Harvest Wells) / GTC913 Development of Rainfall Harvest (Groundwater Recharge Wells) in Potable Wellfield Stations

The Scope of Works Consists of:

• GTC 912 – Rehabilitation and Drilling of 363 nos. recharge wells in different location, to make it full operational and which consist the following:

– Removal/ Demolition of existing gabions & reconstruction of gabions

– Removal of existing casing and replace new casing

– Video Logging and Well cleaning

– Reaming/ Drilling to extend up to 70mm depth

– Carry out caliper & clinometer logging, and baseline fluid—flow logs

– Carry out ground water sampling and laboratory test for hydro chemical

and microbial analysis.