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DryWell StormFilter

DryWell StormFilter

Infiltration and Treatment in One Structure

 

StormFilter LogoFollowing low impact development (LID) principles, one of the best ways to manage stormwater and on-site hydrology is to keep the water on the site and infiltrate the runoff. Also called injection wells, dry wells are a popular way to provide infiltration. As dry well popularity grows, agencies are adopting strict pretreatment standards for new and existing dry wells to avoid potential groundwater pollution. The DryWell StormFilter adheres to these strict standards, providing infiltration, treatment and groundwater protection in a single structure.

Agencies may now require owners to retrofit existing dry wells with a treatment device to mitigate groundwater pollution. The StormFilter provides a high level of stormwater treatment and can be retrofitted into existing 48” manhole dry wells. Retrofits are installed in three easy steps.

The DryWell StormFilter is also available in a pre-cast manhole top section that is designed to be stacked on dry well infiltration risers. This unit arrives fully assembled and ready to install, including an integrated concrete deck for the StormFilter cartridges.

Benefits of the DryWell StormFilter:

  • High level of treament prior to infiltration
  • Predetermined maintenance intervals
  • Improve drywell exfiltration longevity
  • Control flows

Retrofit Installation Benefits:

  • No excavation required
  • Cost effective retrofit
  • Less disruption of traffic
  • Fast installation - just 4-6 hours

 

DryWell StormFilter for Infiltration

DryWell StormFilterBecause the DryWell StormFilter provides a very high level of stormwater treatment prior to infiltration, you will get the benefit of both in one easy to install structure.  Additionally, the StormFilter cartridges can control flow into the drywell.  Slowing flow improves infiltration capacity.  Treatment does not increase the footprint of your stormwater system.

Subsurface Infiltration for LID Designs

Subsurface Infiltration Perforated MCPChamberMaxx plastic arch system effectively recharges groundwater which can achieve reduced discharge objectives. CONTECH also offers several other systems, including CMP that can be easily perforated to allow for infiltration.The DryWell StormFilter provides infiltration and treatment in one structure.  The manhole design can be installed throughout your site to provide decentralized, microscale stormwater management controls. 

 

SS Credit 6.1 – Stormwater Quantity Control, 1 Point

Intent – Limit disruption of natural hydrology by reducing impervious cover, increasing on-site infiltration, reducing or eliminating pollution from stormwater runoff and eliminating contaminants.

Potential contribution: DryWell StormFilter
  • Treatment and infiltration in one manhole device

Potential contribution: CONTECH Pretreatment Systems
  • Extend the service life of infiltration and detention system
  • Minimize maintenance
  • Control flow into infiltration systems

SS Credit 6.2 – Stormwater Quality Control, 1 Point

Intent – Limit disruption and pollution of natural water flows by managing stormwater runoff.

Potential contribution: Stormwater Filtration - The Stormwater Management StormFilter
  • Complies with the criteria and conforms to accepted protocol for field monitoring set by WA TAPE1 and NJDEP TARP2 for BMP monitoring
    1 Guidance for Evaluating Emerging Stormwater Treatment Technologies, Technology Assessment Protocol – Ecology (TAPE), Washington Department of Ecology
    2 The Technology Acceptance Reciprocity Partnership Protocol for Stormwater Best Management Practice Demonstrations (TARP), New Jersey Department of Environmental Protection (NJDEP)

WE Credit 3 – Water Efficiency, 2-4 Points

Intent – Further increase water efficiency within buildings to reduce the burden on municipal water supply and wastewater systems. Reduce by 30% (2 points), reduce by 35% (3 points) or reduce by 40% (4 points).

Potential contribution: CONTECH Stormwater Treatment Systems
  • Pretreat rainwater to remove pollutants with treatment systems

WE Credit 3 – Water Efficiency, 2-4 Points

Intent – Further increase water efficiency within buildings to reduce the burden on municipal water supply and wastewater systems. Reduce by 30% (2 points), reduce by 35% (3 points) or reduce by 40% (4 points).

Potential contribution: WE Credit 3 – CONTECH Stormwater Treatment and Detention Systems
  • Reuse harvested rainwater for grey water applications such as toilet flushing

MR Credit 4 – Recycled Content, 1-2 Points

Intent – Increase the demand for building products that incorporate recycled content materials. The sum of post-consumer recycled content plus one-half of the pre-consumer content constitutes at least 10% (1 point) or 20% (2 points), based on cost, of the total value of the materials in the project.

Potential Contributions: CONTECH Concrete Structures
  • Many CONTECH vendors use recycled materials in their concrete mixes
  • Contact your local CONTECH representative for project specific information.

MR Credit 5.1 – Regional Materials, 1-2 Points

Intent – Increase demand for building materials and products that are extracted and manufactured locally to a job site in hopes to reduce the environmental impact that would result from transporting these goods. Products manufactured, extracted and recycled within 500 miles of the project site for a minimum of 10% (1 point) or 20% (2 points), based on cost of the total materials value.

Potential Contribution: All CONTECH Products
  • 40 manufacturing facilities nationwide Contact your local representative to find out if your project location falls within our reach

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