First, the answer to Vol. 10 (last week). Wow, there were a lot of great responses! Everyone had great observations and admittedly, I missed the fork-lift safety issue in the...

First, the answer to Vol. 9 (last week). Everyone nailed the water and electric combination!  A true hazard no matter how you look at it, especially with the junctions being...

Everybody remember when you had to read through a scenario and then answer questions at the end?  Well, there’s a bit of reading to this one followed by three questions...

First, the answer to Vol. 8 (last week). Surprisingly, the biggest issue here is not the flipped body of the articulated haul truck; it is the laborer working directly downslope...

First, the answer to Vol. 7 (last week). The biggie here is the overlap of the extrusion on extrusion. I suggested they cut all the extrusion out and used a...

First, the answer to Vol. 6 (last week). Here are 14 things I noted, in order of occurrence. Dirt stripes. Dirt stripes negatively impact seam quality. Dirt stripe on top...

For such a short video, there were several things that I identified. I’ll post them in the order that I identified them. No rub sheet to set the extrusion welder...

On Tuesday, March 4th a special session is being held at the GEOTECHNICAL Frontiers 2025 conference to discuss welding of geomembranes. It is scheduled for 1:30-3:00 pm. Panelists for the...

Picture it – the Arizona Desert, June 15th 2011. A double-lined containment project encompassing nearly 200-acres. You’ve been working night shift on a liner installation six-days a week since April...

Great job everyone! You nailed this one, too! The two things I identified before putting this video up were the speed of the compactor in reverse and the spinning of...