It also installed an “underdrain,” i.e., a series of pipes that collect groundwater, under two of those ponds. That underdrain, which is not connected to the ponds, collects groundwater that ...

The most difficult and time-consuming part of the work involves adding underdrain to northwest parts of Ponce De Leon Street, village engineer Chris Marsh said. The contract approval was on the ...

File photo by Riley Robinson/VTDigger In May 2021, state officials discovered that an underdrain carrying groundwater away from the state’s only landfill — which empties into nearby water ...

Two years ago, officials discovered that an underdrain carrying groundwater away from Casella Waste Systems’ landfill in Coventry contained pollutants, such as PFAS, arsenic and cadmium.

The underdrain releases were a red flag, but also shows that the underdrain system is “doing its job,” by removing water, so that it doesn’t “tunnel through” the dam breast, according to ...

You can finally get a sense of what this path through the trees will be like in the photo above. The project is scheduled to complete in the spring of 2022. Underdrain sits at the bottom of the ...

Roadside installed underdrain beneath highways — that’s the system that keeps the road foundation from failing. The videos were submitted for the project’s segment two, the widening of the ...

Four filters still use the original clay underdrain system from 1965, which is no longer manufactured and cannot be repaired. These outdated systems will be replaced with modern high-density ...

Thompson Builders Corporation is proud to announce the successful completion of the $10.9 million Santa Teresa Water Treatment Plant improvement project, a major infrastructure effort for the Santa ...