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Stormwater Management and Best Management Practices

Every project must meet local, state and federal laws, regulations and rules governing the impact of property development or redevelopment on stormwater run-off. Engineers and contractors are challenged to meet regulatory permit requirements while seeking to maximize the utility and economics of the site and its improvements.

Watch our tutorial here to see how we meet your needs with the stormwater management system that’s

Superior in Every Value Engineering Comparison.

Low Impact Development (LID)

Low Impact Development regulation compliance is required to get permits. Stormwater manuals provide the local rules about stormwater run-off detention or retention and water flow control. 

  • LID solutions often include underground systems for temporary stormwater detention, retention or storage that preserve the surface utility of higher value land.
  • RainSpace™ Underground Stormwater Detention or Retention Chambers are the lowest cost method of meeting LID regulations.  They can be used under parking lots, driveways and roads or under athletic fields, playgrounds, schoolyards, public plazas and open spaces.

NPDES – National Pollutant Discharge Elimination System

The NPDES permit requirements prevent stormwater run-off over impervious surfaces from polluting rivers, streams, lakes and coastal waters. Stormwater controls known as Best Management Practices (BMPs) reduce pollutants by controlling them at the property. BMPs often involve water treatment in stormwater detention or retention systems. BMPs may also use engineered bioswales to reduce pollutants.

  • RainSpace Chambers underneath bioswales significantly increase the treatment capacity and reduce the surface footprint area.
  • RainSpace Underground Stormwater Management Chambers are the lowest cost means of meeting NPDES and BMP rules when greater capacity is needed to preserve useful surface area.

Collaborative Stormwater Detention, Retention and Storage Planning 

  • Each RainSpace Stormwater Detention, Retention or Storage system is designed in collaboration with the project engineers and contractors and our design staff at Rain Tech, Inc. We work together to provide the best and most economical system design.

Detention, Retention and Storage Installation

  • Chambers are installed quickly and easily.  The excavation is lined with geotextile filter fabric (and an impermeable liner for long term water storage) and the patented structural core tubes  are quickly placed inside. Inlet and drain hook ups are made, the top is covered with the geotextile and the sides and top are back filled.
  • All the materials are lightweight and are easily handled without 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 crew during the installation.

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