The ADS EcoStream Biofiltration system is a manufactured water quality treatment device intended for removal of Total Suspended Solids (TSS) as approved by NJDEP for 80% removal, as well as contaminants like oil, grease, trash, heavy metals, and compounds such as nitrogen & phosphorus. This unit introduces the ability to receive both surface and subsurface runoff, allowing it to be installed in many locations and

applications.

Once installed, the unit’s ability to treat through filtration, adsorption and biological processes will ensure sufficient water quality treatment of the influent runoff.

System components listed are concrete vault, solid lid or cover, inlet pipe, energy dissipation stones, mulch, biofiltration media, underdrain pipe/stone, high flow bypass with beehive grate, flow control orifice and outlet pipe. A diagram is provided.

Functionality is explained when stormwater runoff enters the unit through a throat inlet or subsurface influent pipe. After entering the unit, runoff will flow downward via gravity through the EcoStream system. The top mulch layer will filter out course sediment and gross pollutants.

Design considerations for inverts and elevations discusses the required design head of the system, total depth of the media, depth with trees, and height without plants.

Installation of the EcoStream unit will involve subsurface excavation, placement of sub-base aggregate material, positioning/casting of the vault, and arrangement of the internal components. Proper installation of the unit is crucial to ensure performance in alignment with the parameters specified.

Plants are not required to be utilized but if desired, choice of plant should align with local requirements and/or be chosen by a qualified landscape architect. If guidance is required, ADS can provide a generic plant list for assistance in design. Please refer to local requirements/approvals to determine if plants are required for the EcoStream BioFilter in your area.

A design summary table is provided.