Glen Toepfer

First, the answer to Vol. 20 (last week). Thanks for your responses! Indeed, the operator veered to the right during welding with the dual-track wedge welder, so I am already...

First, the answer to Vol. 19 (last week). Thanks for all of your guesses! The answers are as follows: A) The panel and seam length were approximately 410 feet. The...

First, the answer to Vol. 18 (last week). Great job everyone! I believe between all the responses, everything was identified! There really is a lot of content in this photo...

First, the answer to Vol. 17 (last week). This one is a tear that happened in the existing geomembrane during the exposing of the existing geomembrane at the tie-in. The...

First, the answer to Vol. 16 (last week). Thanks to those of you who either viewed and/or participated in this post! In this photograph, I was looking for the lack...

First, the answer to Vol. 15 (last week). Perhaps the photo taken with flash will help – the first photo was taken just to show how dark it really was...

First, the answer to Vol. 14 (last week). I chose this one because it appeared relatively straightforward, and something being performed correctly! However, Bob Killian makes an excellent observation I...

First, the answer to Vol. 13 (last week). Those of you who commented nailed the GCL being dragged across the subgrade, which should be avoided! Another biggie that is often...

First, the answer to Vol. 12 (last week). Great answers! It seems like everyone was on the same page with this one! It was some type of blemish on the...

First, the answer to Vol. 11 (last week). When I arrived on-site, I first thought maybe the site was hit with an overnight rain shower! Conditions looked like the photo...