Tag: sediment

Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice, and/or by the force of gravity acting on the particles. For example, silt falls out of suspension via sedimentation and forms soil (some of which may eventually become sedimentary rock).

Techniques for Successful Sediment Control

Techniques for Successful Sediment Control

Siltation in water containment structures is problematic, resulting in the loss of space in tanks and other structures such as reservoirs, ponds, and catch basins. It also increases the cost of treating drinking water, with high loads interfering with coagulation, filtration, and disinfection.

Geosynthetics for Roadway Construction

Geosynthetics for Roadway Construction

Ever since the Romans used palm fronds and other plant fiber matting to reinforce the sub-bases of their famous roads, fabrics have been used to improve road longevity and performance. Modern road construction methods rely on a family of materials called geosynthetics to achieve the same results. But these more sophisticated materials can

A Five-Year Study of IDDE Data

A Five-Year Study of IDDE Data

Pierce County’s Surface Water Management (SWM) division is charged with maintaining both the natural surface water systems and the stormwater collection and conveyance infrastructure within its unincorporated 1,800-square-mile service area (population 380,000). These areas include an impressive variability in landscapes: from glacial streams of Mt. Rainier to fertile farmlands of

Waters of the US: Now’s Our Chance To Be Heard

Waters of the US: Now’s Our Chance To Be Heard

As you’re probably aware, EPA and the US Army Corps of Engineers under the new administration are proposing to rescind the beleaguered Waters of the US Rule, also known as the Clean Water Rule, that went into effect in 2015. You have a narrow window to comment if you wish

The Role of Erosion Control on the Panama Canal Expansion Project

The Role of Erosion Control on the Panama Canal Expansion Project

EVERY EROSION CONTROL project is mission critical, but the Panama Canal expansion project, completed in June 2016, is arguably in a class by itself, given the scale of the undertaking and the waterway’s strategic importance to international commerce. The dirt-and-rock slopes created from the dredging of nearly 50 million cubic

ShowCase

STORMCHAMBERS
HydroLogic Solution’s StormChamber systems are highly cost effective for control of stormwater runoff, peak flow attenuation, sediment control, nutrient and pollutant removal, and stormwater conveyance. One row of 34-inch StormChambers provides conveyance capacity approximately equivalent to 42-inch pipe; 52-inch pipe with our 44-inch StormChambers. StormChamber systems are less expensive, and

Project Profile: Gobernadora Multi-Purpose Basin

Project Profile: Gobernadora Multi-Purpose Basin

Rancho Mission Viejo (RMV), in partnership with Santa Margarita Water District (SMWD) and Orange County Public Works (OCPW), developed an innovative multi-functioning water infrastructure system that reclaims an urban stormwater waste stream and provides regional flood control benefits.

Twenty Years of Stormwater Samples

Twenty Years of Stormwater Samples

Nest Environmental Services has accumulated more than 1,000 stormwater samples and analysis, at the rate of 50 to 60 samples per year, for over 20 years. We thought it would be instructive to look at the results of that monitoring to see whether there was any long-term trend in the

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