Lake Forest reservoir relining and floating cover

August 29, 2023  |  Features

Geosynthetic floating covers provide a highly sustainable and economical method of protecting and treating fresh and potable water. They are designed to protect fresh water from environmental contamination while eliminating water losses due to evaporation. Case in point is the Seattle Public Utiliti…
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Searching to maximize stress reduction ratio with biaxial geogrids and timber piling

August 10, 2023  |  Features

Some projects almost design themselves. Dense sand? Very stiff clayey soils? Deep groundwater? Well, projects within the collar counties surrounding Cook County and the city of Chicago occasionally encounter a different sort of soil beast: peat and muck. Largely plant-based deposits settled in kettl…
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Best practices-Working toward zero leaks

August 1, 2023  |  Features

The Uinta Basin in northeast Utah is known for its extensive in-place oil shale resource. Because this area produces crude with low containment levels, it contributes to the production of fuels that are compliant with the most rigorous environmental standards. When XCL Resources was tasked with buil…
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Powering through extremes: Fuel containment in Moose Creek

June 1, 2023  |  Features

Alaska, the Arctic, and similar cold weather regions are expected to play a key role in supplying future energy needs for the world. As energy resources continue to be pursued in these extreme climates to meet the energy demands of society, protection of our natural resources is essential. Primary a…
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Hugo, Colo., wastewater treatment system improvements

June 1, 2023  |  Features

Around 1859 the town of Hugo, Colo., was developed as a cattle ranching community to supply miners with provisions and to serve as a local stagecoach stop. It was officially founded in 1870 and incorporated in 1909; this frontier community of 786 people is located off I-70 east of Denver, and 30 mil…
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Embankment reinforcement using 1750 kN/m strength geogrids

June 1, 2023  |  Features, News

In 2015, a variant road was built to relieve urban traffic in the southeastern section of federal road BR 101, more precisely in Florianopolis, which is the capital city of Santa Catarina, Brazil. With a length of 4,828 km (3,000 miles), BR-101 is a major Brazilian highway that runs the length of Br…
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Motorway underpass using geomembranes as a groundwater barrier

April 1, 2023  |  Features

In some places in the Netherlands, there is an absence of natural clay so groundwater flushes easily through the soil. As soon as excavation starts, groundwater will be present. Groundwater must be removed or taken care of to build roads, tunnels, etc. in dry conditions. This article describes a tec…
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GCL and geosynthetic membrane installation for mining site

April 1, 2023  |  Features

Nestled in the Midas Trench lineament on the northwest side of the Humboldt Range, numerous mines take full advantage of their proximity to the basin and ridge frontal faults that serve as conduits for gold-bearing hydrothermal fluids. In 2020, CETCO was contacted by a mine in this region to assist …
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Vegetated long-term solution for fly ash landfill capping project

February 1, 2023  |  Features

In 2019, a coal-fired power plant in Illinois was scheduled to be retired. The decision to close the plant was made to address the recently approved revisions to the Multi-Pollutant Standards rule from the Illinois Pollution Control Board.
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Innovative solution for ballast fouling

February 1, 2023  |  Features

Remy Steffer, director of engineering at the Port of Texas City, Texas City Terminal Railway Company, and Houston Belt and Terminal Railway, is very familiar with ballast fouling. Overseeing operations at a port facility south of Houston, Texas, Steffer has dealt with ballast fouling his entire care…
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