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Dredging For Environmental Remediation

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Part of modern life is maintaining the delicate balance of the environments and ecosystems that we live near, and work with. It is not uncommon for waterways, like rivers, streams, lakes, and ponds to become polluted with man-made chemicals and materials. This can have a long-term impact on not only the health of the water resource but the people who live near that resource as well.

Fortunately, there are ways that this impact can be mitigated, and it can be done through a dredge rental service like U.S. Aqua Services. As a dredging company, we’re committed to dredging practices that are environmentally sound and earth-conscious. Read on to learn about dredging remediation, and how U.S. Aqua Services can help restore the balance of your water resources ecosystem.

What Is Remediation Dredging?

Dredging has been used in harbors and rivers for centuries as a way to aid in their navigation. It’s a proven and effective way of opening up waterways for increased usage. However, environmental dredging is a recent phenomenon and also an important one. Unlike navigation dredging, which measures the amount of material removed as a metric to judge success, environmental dredging measures the amount of targeted material removed as a metric for success.

This means that environmental dredgers are trying to remove certain contaminated materials while leaving uncontaminated materials intact, and minimizing the amount of water that is disturbed.

How Is It Done?

Because environmental remediation dredging needs to be so precise, it is carried out in different ways than navigational dredging. Typically, remediation dredging is carried out by either a mechanical or hydraulic dredging machine. Mechanical dredging usually requires the use of a bucket that collects contaminated sediments and then placed in a hopper or container. Hydraulic dredges loosen the contaminated sediments from the uncontaminated area with a cutter head and sucks the sediment into a holding tank.

In both cases, these contaminated sediments and materials are separated from the water that they were dredged in. This allows the contaminated sediments to be disposed of, or treated properly. This also allows the water itself to be treated before being returned to the water source it was taken from. Because hydraulic dredging moves much more water and sediment to the shore in the form of a slurry, it has the potential to move more water, and disperse contaminated water to nearby water sources. As a result, much more monitoring of nearby water sources is conducted by dredging companies during a hydraulic dredge of contaminated sediments.


The long-term effectiveness of remediation dredging is that harmful contaminants have been removed from the sediments of a water source. This keeps the surrounding vegetation and animal populations healthy, as well as any nearby human populations healthy.

In the short term, there can be an increase in the number of contaminants being introduced into the water source, as the process of dredging can disturb these contaminated sediments, and pushing them out into the water source. This can be mitigated through the use of silt curtains, sheet piling, and air curtains.

While remediation dredging can be an expensive endeavour, sometimes it is the only way to remove large sections of contaminated sediment in an effective manner. While it’s easy to get caught up in the short-term financial costs of a dredge rental project, U.S. Aqua Services also keeps the long-term environmental costs of a project in mind. Our dredging equipment rental service uses cutting-edge environmental dredging techniques to ensure that the highest amount of contaminated sediment can be removed, while simultaneously minimizing the impact and disruption to surrounding ecosystems.

If you’re in need of assistance with your environmental dredging project, contact us today. Our dredging equipment rental service has all the machinery and technology you could ever need to carry out a safe and effective environmental remediation dredge.