Water well drilling services

Drilling and reaming of borehole to depth to 150m it will base on Hydrogeological survey report ensuring a minimum sustainable yield of 5 cubic meter per hours (5m3/hr) · Domestic water well drilling service · Sampling (3m intervals) and storage of representative Drill sample · Supply and install 152.4mm (ID) diameter uPVC plain casing 6" · Supply and install 152.4mm Diameter , uPVC screen 2-4mm slot size casing 6" · Well development including Surging (Well Flushing using air lift) until water and the turbidity less than 5 NTU · Supply and install filter gravel (quartz 3_5mm) 100kg bag · Survey and installation of cement grouting at depth pf 1.5 with the all necessary activities · Supply and installation of inert backfill · Water sampling and testing for biological and pysiochemical. the analysis to be checked against GOSS and WHO standards and levels to be permissible before further construction · Supply materials and casing of sanitary seal · pump test atleast 5bstep test Drawdown and 24hrs constant step discharge to determine borehole yield (Q) Static water level SWL Dynamic Water Level DWL Drawdown DD Abstraction point pump setting well recovery time HR. the minimum 6000 ltr per hour is acceptable as productive well and supply and install a pump with the capacity of yielding minimum 6000ltr per hour