Profile: Stuart Group Ltd specializes in offering geotechnical materials. We also provide groundwater control and remediation contracting services. Our products include wellscreens, bentonites, filter materials, protective covers, geothermal, piezometer, coreliners and bailers. Swelltight™ pellets are extruded bentonite pellets that are prepared from naturally occurring high purity montmorillonite, sodium activated bentonite. Groundwater control services include wellpointing, deep wells, educators, borehole decommisioing, groundwater monitoring & sampling and water well drilling services.