Tag: clay soils

Clay is a fine-grained natural rock or soil material that combines one or more clay minerals with traces of metal oxides and organic matter. Clays are plastic due to their water content and become hard, brittle and non–plastic upon drying or firing.

Protecting Coastal Waters

Protecting Coastal Waters

San Diego, CA, is a city with scenic coastlines along the Pacific Ocean, a world-class zoo, a long association with the US Navy, a growing population and economy, and a lively tourism industry. Managing stormwater in this beautiful city involves dealing with a myriad of challenges.

Stormwater Goes to School

Not too long ago, there were only two colleges in the United States where one could learn about stormwater management, notes Brant Keller, public works director for Griffin, GA.

Retaining Walls—Beauty With Purpose

Retaining Walls—Beauty With Purpose

Retaining walls vary tremendously in design and setting, but they all share a functional purpose. A well-designed retaining wall can enhance the appearance of a site, but if it doesn’t stabilize the earth and last, it’s not a success. Retaining walls in the following projects add value to their sites

Beauty With Purpose

Beauty With Purpose

Retaining walls vary tremendously in design and setting, but they all share a functional purpose. A well-designed retaining wall can enhance the appearance of a site, but if it doesn’t stabilize the earth and last, it’s not a success. Retaining walls in the following projects add value to their sites

Project Profile: Site Sampling Tools

Project Profile: Site Sampling Tools

Geophysical surveys can be the bedrock (pardon the pun) of today’s environmental projects, from locating abandoned underground storage tanks (USTs) and utilities, to complex mapping of geology in remedial investigations, to finding landfill boundaries and other buried unknown problems. In the past few decades, a variety of non-destructive testing methods

Air, Water, and Soil

Air, Water, and Soil

A good piece of vacuum excavation equipment in the fleet can make jobs easier, safer, faster, and more efficient. It can help a company cast a wider net for project opportunities.

Improving the Soil

Improving the Soil

In revegetation, everything begins with the soil—usually poor soil.

Soils may become degraded during the construction of buildings, roadside projects, or mining or landfill operations, or because of overgrazing or deforestation. They lose their topsoil, usually the top 2- to 8-inch layer of the soil, where the most important nutrients lie.

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