Deep drilling and groundwater monitoring at a former colliery in Kent In March 2009 Ecologia successfully completed a program of deep drilling at a former colliery site in Kent on behalf of a Local Authority. Monitoring wells were installed using 110mm HDPE with GeoNet slotted sections with gravel packing to intercept the water table. Plain HDPE casing with bentonite grout annulus was used to complete the well installation in the unsatur

Join for free to read