StormVault Stormwater Treatment

Stormwater Treatment and Volume Control Tank

StormVault™ is unique because it provides both stormwater treatment and volume control in a single structure. Since it is engineered to capture up to 85% of all stormwater runoff and slowly release it to receiving waters, StormVault is an ideal solution for managing stormwater.

  • Built with durable precast concrete, StormVault is designed to withstand heavy loads and high groundwater conditions.
  • Treats runoff containing the highest percentage of pollutants, such as during the first flush of large storm events.
  • Designed and tested for water quality standards, StormVault traps small particles and minimizes re-suspension of captured polutants.
  • By providing peak flow attenuation to reduce downstream erosion, StormVault significantly reduces post-development runoff flow rates, stream channel degradation, and destruction of aquatic habitats.
  • On average StormVault provides an effluent total suspended solids concentration of less than 20 mg/L, providing excellent stormwater treatment and volume management.

Download the StormVault Treatment and Volume Control Standard drawings and specifications below or contact us today to get started on a site-specific design.


Configure Product and Download Drawings

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How It Works

StormVault is unique from other products in the market in many ways, the most notable being that it is designed to mitigate downstream erosion and watershed degradation through detaining and slowly releasing the flow from each storm event, offering both stormwater treatment and volume control in a single structure.

In a properly sized and installed StormVault, the detention time is optimized to promote sedimentation of particles less than 70 microns. The StormVault collects and holds pollutants commonly targeted in stormwater regulations, such as trash, floatable debris, oil and grease, low solubility petroleum hydrocarbons, sediments, metals, nitrogen, phosphorus, and other organic compounds. Effluent is released at a controlled rate, enabling StormVault to provide both volume control and stormwater treatment.


Volume Control

  • Detention
  • Flow attenuation
  • Erosion reduction

Water Quality

  • High pollutant removal requirements
  • Trash and debris removal
  • TSS removal
  • Sediment removal
  • Oil, grease, and other TPH removal
  • Metals removal
  • Nutrient removal
  • Stormwater Treatment

Project Type

  • Commercial
  • Industrial
  • Residential
  • Parking lots
  • Mixed-use




Documents and Materials


How It Works

Agency Certifications and Approvals


  • Receive typical application drawings along with site specific plan and profile drawings for your stormwater treatment and volume control projects.
  • Provide engineer’s value estimates for Jensen Water Resources project designs.
  • Leverage our readily available tools to support storage and runoff calculations, size our systems, and satisfy stormwater management goals.


  • Create competitive bids with quantified, specific information and pricing.
  • Get installation weights and guidance to support estimation of your installation effort.
  • No hidden installation requirements or costs.


  • Complete your projects on time with well constructable plans inherent into all Jensen Precast products for installations that are quick and easy.
  • Secure, safe delivery and timely setting of your stormwater management systems with our expert drivers and delivery personnel.
  • Gain peace of mind with our easy to maintain systems that require minimal upkeep and safe access post install.