Contech Modular Wetlands Linear Stormwater Biofiltration
MODULAR WETLANDS LINEAR STORMWATER BIOFILTRATION
MODULAR WETLANDS LINEAR STORMWATER BIOFILTRATION
The Modular Wetlands Linear is the only biofiltration system to utilize patented horizontal flow, allowing for a smaller footprint, higher treatment capacity, and design versatility
INFORMATION
MODULAR WETLANDS® LINEAR - STORMWATER BIOFILTRATION
The Modular Wetlands Linear is the only biofiltration system to utilize patented horizontal flow, allowing for a smaller footprint, higher treatment capacity, and design versatility. It is also the only biofiltration system that can routinely be installed downstream of storage for additional volume control and treatment.
BRAND
Contech
PRODUCT TYPE
Biofiltration
CURB INLET
The Curb Inlet configuration accepts sheet flow through a curb opening and is commonly used along roadways and parking lots. It can be used in sump or flow-by conditions.
VAULT
The Vault configuration can be used in end-of-the-line installations. Another benefit of the “pipe-in” design is the ability to install the system downstream of underground detention systems to meet water quality volume requirements, or for traffic-rated designs (no plants).
CHAMBER
Pretreatment chamber
FLOW
Horizontal flow biofiltration
FILTER BOXES
Stormwater enters the pretreatment chamber where total suspended solids settle, and trash and debris are contained within the chamber. Stormwater then travels through the pre-filter boxes that provide additional treatment.
FEATURES
With numerous regulatory approvals, the system’s aesthetic appeal and superior pollutant removal make it the ideal solution for a wide range of stormwater applications, including urban development projects, commercial parking lots, residential streets, mixed-use developments, streetscapes, and more.
PERFORMANCE
Performance verified by both the WA DOE and NJ DEP
BYPASS
Built-in high-flow bypass
CONTROL
The specially designed vertical drainpipe and orifice control plate control the flow of water through the media to a level lower than the media’s capacity, ensuring media effectiveness. The water then enters the horizontal drainpipe to be discharged.
STRUCTURE
During peak flows, an internal weir in the side-by-side configuration allows high flows to bypass treatment, eliminating flooding and the need for a separate bypass structure. Bypass is not provided in the end-to-end configuration.
DISCHARGED
As water enters the biofiltration chamber, it fills the void space in the chamber’s perimeter. Horizontal forces push the water inward through the biofiltration media, where nutrients and metals are captured. The water then enters the drainpipe to be discharged.
FEATURES
Available in multiple configurations and sizes
MAINTENANCE
Enhanced pollutant removal, faster maintenance
MODULAR WETLANDS LINEAR CONFIGURATIONS
- Curb Inlet
- Vault
- Downspout
BENEFITS
- Greater filter surface area
- Superior pollutant capture with confidence
- Flexibility to meet site-specific needs
- Eliminates flooding and the need for a separate bypass structure
MODULAR WETLANDS LINEAR MAINTENANCE
The Modular Wetlands Linear is a self-contained treatment train. Maintenance requirements for the unit consist of five simple steps that can be completed using a vacuum truck. The system can also be cleaned by hand.
- Trim vegetation (if needed)
- Replace the drain-down media
- Periodically replace the pretreatment cartridge filter media
- Remove the sediment from the separation chamber
SELECT MODULAR WETLANDS LINEAR APPROVALS
The Modular Wetlands Linear has been evaluated by some of the most stringent stormwater technology evaluation organizations in North America, including, but limited to:
- Atlanta, GA Regional Commission
- Texas Commission on Environmental Quality (TCEQ)
- City of Portland, Oregon Bureau of Environmental Services
- Virginia Department of Environmental Quality (VA DEQ)
- New Jersey Department of Environmental Protection (NJDEP)
- California Water Resources Control Board, Full Capture Certification
- Washington Department of Ecology (GULD) – Basic, Enhanced, Phosphorus
- Canadian ISO 14034 Environmental Management – Environmental Technology Verified (ETV)
- Maryland Department of the Environment - Environmental Site Design (ESD)
MODULAR WETLANDS LINEAR POLLUTANT REMOVAL PERFORMANCE
The Modular Wetlands Linear continues to outperform other treatment methods with superior pollutant removal for TSS, heavy metals, nutrients, and hydrocarbons. The Modular Wetlands® Linear is field-tested on numerous sites across the country and is proven to effectively remove pollutants through a combination of physical, chemical, and biological filtration processes.
MEASURED POLLUTANT REMOVAL PERFORMANCE
| POLLUTANT | MEDIAN REMOVAL EFFICIENCY |
|---|---|
| Total Suspended Solids (TSS) | 89% |
| Total Phosphorus (TP) | 61% |
| Total Nitrogen (TN) | 23% |
| Total Copper (TCu) | 50% |
| Dissolved Copper | 37% |
| Total Zinc (TZn) | 66% |
| Dissolved Zinc | 60% |
| Motor oil | 79% |
ADVANTAGES
AGENCY/REGULATORY GUIDANCE
Our team is ready to provide you with expert advice and assistance on local regulatory requirements, resulting in faster approvals.
COST ESTIMATES
We can quickly provide engineer’s cost estimates to assist with your solution selection process.
SITE SPECIFIC DRAWINGS
Our engineers can provide site-specific drawings for proposals, project meetings, and submittals, helping you be more efficient with your time.
SOLUTION DEVELOPMENT
Our engineers can review your requirements, weigh all options, and recommend the optimal solution to integrate with your site designs.
ON-SITE ASSISTANCE
Contractors know time is money, so we provide preconstruction meetings, delivery coordination, and on-site installation support to ensure a timely, smooth installation.
TECHNICAL EXPERTISE
Our engineers can assist by providing product specific engineering calculations such as hydraulics, buoyancy, foundation reactions, and unit sizing.
