Week 5- making progress...

Fighting the battle on a few fronts this week- first up was the water table under the Treatment basin. This was causing the structural fill to become unstable. After discussing options "geogrid" was chosen as the solution. Here's a shot of the water table in the fill. Picture of geogrid later-



On another front we had to finish exposing rock for drilling & blasting, which is now a "go". Last week the basalt in the PREM (phos. removal) hole had been exposed. We also dug down to rock in the effluent lift station- "LS-2". Beginning of the week the rock below LS-1 (influent lift station) had to be exposed-



By mid-week the drilling was underway!





In the meantime a bypass for the existing lagoon effluent was put in place-



And the geogrid was laid out on the first lift of structural fill in the Treatment basin-



By the end of the week 49 holes were drilled in the PREM hole-






And the geogrid was covered with structural fill-