Stetson Ridge and Eastview

Stetson Ridge and Eastview

construction-case-studies

Environmental Logistics lent expertise for large developments requiring significant stormwater management plans

Controlling water quantity, maintaining water quality, and meeting local, state, and EPA requirements are the goals of stormwater management plans for large-scale commercial and residential developments. In recent years, EPA requirements have been sweeping and enduring, and developers who fail to meet the criteria face stiff penalties.

According to the EPA, the sediment runoff rates from construction sites are 10 to 20 times greater than those from agricultural lands and 1,000 to 2,000 times greater than those from forestlands. This puts areas adjacent to construction sites at an increased risk of pollution.

Increased sediment can damage lakes and streams, and various pollutants can adhere to sediment particles. While construction-site stormwater management plans are designed to prevent sediment runoff with rainwater, it’s important to understand that runoff moves even faster along concrete or asphalt than over soil, which creates complications.

To address their significant stormwater challenges, several residential developers in Colorado Springs, Colorado, contracted with Environmental Logistics for 2 large development projects: Stetson Ridge and Eastview. Environmental Logistics reviewed the sites’ stormwater plans to ensure they were optimal for the sites. Next, we implemented the plans, provided maintenance, and conducted site inspections to ensure the developments met stormwater treatment goals.

Prior to creating a stormwater management plan and design, Environmental Logistics believes it’s critical to look at the water sources that could impact the site. Plans to manage post-construction runoff are determined by the lay of the land, location of nearby water sources, and local, state, and EPA requirements. The goal, of course, is to keep all water and potential pollutants on the construction site.

The Stetson Ridge site’s stormwater management plan included check dams, erosion blankets, silt fencing, vehicle tracking control pads, and concrete washouts. In addition, filter socks were used as perimeter control. The Eastview site’s stormwater management plan used the same best-management practices as well as vegetated buffer strips for inlet protection.

Wherever possible, Environmental Logistics uses bioretention to make full use of soils and plants to eliminate pollutants from stormwater runoff. Grasses slow the flow of the runoff, while a sand bed filters particulates. Using a bioretention system can reduce a site’s stormwater management system’s overall cost. Plus, vegetative best-management practices increase a site’s aesthetics, before and after development.

This case study was derived from an article published by Erosion Control, the journal of the International Erosion Control Association.

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