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Stormwater Management Best Management Practices

Every project today must conform to local, state and federal laws, regulations and rules governing property development and the impact of development or redevelopment on stormwater run-off. Stormwater Management is an area where engineers and contractors are constantly faced with challenges to meet regulatory requirements on projects while seeking to maximize the utility and economics of the site and its improvements.

Low Impact Development (LID)

Almost every building jurisdiction has low impact development regulations and rules regarding stormwater management. Compliance is required to get development permission and building permits. Jurisdictions typically have a handbook or guide that provides the local rules about stormwater run-off containment, water quantity flow control into storm drains, sewers or wetlands, stormwater detention, infiltration into underlying soils and longer term retention of stormwater. Low Impact Development solutions often include underground systems for temporary stormwater detention or retention that are, essentially, underground chambers, tanks, cisterns or drain fields. These underground systems preserve the surface utility of higher value land by allowing land on the site to be used for additional structures, parking and roads. This land is not used for surface detention ponds which detract from the economic utility of the land.

RainSpace™ Underground Stormwater Management Chambers are the most cost effective means of meeting Low Impact Development stormwater management rules under parking lots, driveways and roads or under athletic fields, playgrounds, schoolyards, public plazas and open spaces.

NPDES – National Pollutant Discharge Elimination System

The Environmental Protection Agency (EPA) established the NPDES to address Stormwater runoff flows over land or impervious surfaces, such as paved streets, parking lots, and building rooftops, and does not soak into the ground. The runoff picks up pollutants that can harm rivers, streams, lakes, and coastal waters. Construction companies and property developers and owners use stormwater controls, known as Best Management Practices (BMPs) to reduce or remove harmful pollutants by controlling them at the property. Best Management Practices often involve underground stormwater management detention or retention systems. BMPs may also use engineered bioswales over underground infiltration soils to reduce or eliminate pollutants from run-off water. Underground water storage chambers for detention under bioswales or engineered wetlands can significantly increase the water handling capacity of these BMPs and thereby reduce their surface footprint area, leaving more economically useful land available at the site for alternate uses.

RainSpace Underground Stormwater Management Chambers are the most cost effective means of meeting NPDES Best Management Practices for stormwater management rules when greater water storage capacity is desired under bioswales or engineered wetlands. They are also the economically superior solution for BMPs under parking lots, driveways and roads or under athletic fields, playgrounds, schoolyards, public plazas and open spaces.

Collaborative Stormwater Management Planning Is the Optimum Approach

Each RainSpace Stormwater Management system design and installation is the result of a collaboration between the project engineers and contractors and our design staff at Rain Tech, Inc. We achieve the optimum solution for the project’s stormwater management requirements by working together to define the issues and possibilities of the project site to come up with the best and most economical system design.

Stormwater Management Installation

RainSpace Underground Stormwater Management Chambers are installed quickly and easily. When the designed excavation is ready, the installing contractor lines it with geotextile filter fabric (and an impermeable liner, if required for long term water storage) and the patented structural core tube bundles are quickly placed inside. Storm drain hook ups are made, the top is covered with the geotextile and the sides and top are backfilled. All the materials are lightweight and are easily transported at the site and quickly installed without using cranes or large equipment. A typical commercial or institutional installation takes a small crew one or two days to complete. We send a senior technician to each installation site to advise the installing contractor’s crew during the installation.

Superior in Every Value Engineering Comparison
Smallest Footprint – Fastest Installation – Least Labor – Lowest Cost

Last Modified: December 10, 2018