A round-the-clock security has been deployed to keep vigil on the ash pond. The modified design of the ash mound with garland drains and settling ponds and retention dykes will be able to arrest ...

This story is an updated version of one that ran on May 18. This version includes more information. Concerns about the water ...

The state department said the sampling is designed to further delineate the PCB soil contamination at the site and ultimately allow for the design ... former Grumman settling ponds and a testament ...

Hillsborough commissioners voted Tuesday to hold a second hearing April 24 on IMC's request to move a clay settling pond to another part of its property. Commissioner Ed Turanchik, one of only two ...

"This will allow us to drain the ponds down to very low levels to meet the original design standards. "We are also in the process of installing a seawater flap (non-return valve) which will ...

These controlled burns happen every year to help manage vegetation growth, which can quickly overwhelm wetland and sediment settling ponds. The ponds separate sediment stormwater before the water ...

Other parties also are helping with the project. Crews are building a settling pond on the river on the east side of U.S. 40 near the entrance of the Mary Jane ski area and a new wetland area.

But Branam said even a coal ash pond that’s capped and lined can be at risk. “The biggest issue then is, are you going to breach the settling pond where they put this stuff and will it — as ...

What has perhaps not been clear is that Blue Heron owned 39 acres on the West Linn side, used for a settling pond, which was recently purchased by Clackamas County's Water Environment Services (WES).