Within the swales are a series of forebays that pond stormwater behind earthen berms, at the bottoms of which are 10” pipes that allow low flows through and extend time of concentration for larger...
WHY THESE PRODUCTS?
Our mantra at Construction EcoServices is to provide the highest level of compliance at the lowest overall price. Although this sounds too good to be true, through creativity and innovation, we don’t rest until we achieve that goal. This way of thinking has led us to a suite of solutions centered around bioretention and bioswale design that focuses on ease of installation and a vast reduction in the cost of long-term maintenance. Although our approach bucks conventional thinking, the modern bioretention approach treats more stormwater and greatly extends required maintenance intervals, at a lower upfront cost. This, along with a years’ worth of maintenance and unparalleled quality control, makes the Construction EcoServices approach to design unmatched in the marketplace.
High-Performance Modular Biofiltration Systems
Why Do We Recommend This Product?
“For my clients, it is all about the economics. FocalPoint allows me to give my client a multifunctional solution that makes better use of real estate, increase lot yield and overall, generates more revenue over traditional stormwater detention pond designs. Aside from the cost savings, the end result is far more attractive that a detention basin.”
Business Development, Stormwater Systems
Spend Less. Build More. Look Better.
FocalPoint High-Performance Modular Biofiltration System (HPMBS) is a scalable biofiltration system which combines the efficiency of high flow rate engineered soils with the durability and modularity of a highly pervious expandable underdrain/storage/infiltration system. The modular FocalPoint HPMBS is a complete, integrated system with a demanding specification that insures functionality, performance and maintainability. With rigorous quality assurance standards and post-construction in-situ performance verification, FocalPoint HPMBS provides guaranteed performance.
The FocalPoint’s modular underdrain, unlike a traditional perforated pipe, not only supports the flow rate of the media, but can be expanded beyond the footprint of the media bed to provide unlimited underground detention, infiltration and/or storage for water reuse/infiltration.
FocalPoint HPMBS gives designers maximum flexibility in meeting both water quality and volume requirements.
The system can be used in combination with traditional LID BMPs such as grassy swales and vegetated depressions. It enables implementation of green streets using urban sidewalk planters; which because of the small footprint can support designs with large trees. These systems are also used for downspout planters, replacing underground treatment systems and are an easy retrofit for failed traditional bioretention systems. FocalPoint provides unlimited application opportunities for new construction and redevelopment.
In addition, when used in conjunction with complimentary stormwater management solutions, such as bioswales, permeable pavement, and raingardens, FocalPoint creates the ability for developers, architects and engineers to decrease a property’s surface storage volume requirements and increase lot yield. Subsequently, more land can be developed, increasing long-term revenue and property value.
Although the price per square foot of FocalPoint is many times higher than traditional bioretention, the efficiency of the FocalPoint High Performance Media makes the system more than 30 times smaller, per acre treated, resulting in a 50% cost savings per acre treated. The first year’s maintenance is included in all FocalPoint HPMBS installations to ensure that the system is given the best opportunity to succeed, and low cost annual maintenance contracts are available.
Due to the efficiency of the FocalPoint media, scale is in its favor. Fulfilling equal requirements, a FocalPoint solution will use 30x less space than a detention pond solution
‘Cap & Seal’ Protection During Ongoing Construction Activity
Protecting the FocalPoint HPMBS during construction is of the utmost importance. The ‘Cap & Seal’ protection ensures a viable system regardless of the construction sequencing by sealing off the media bed until the contributing drainage area is stabilized. Solving this problem removes one of the most problematic issues in bioretention. Due to it’s small scale, FocalPoint HPMBS can be capped and sealed, allowing installation to take place early in the project construction cycle when other site utilities are installed.
We guarantee post-construction performance and we make sure your client gets it.
Performance Guaranteed with Post-Installation Verification
This hydraulic conductivity test procedure measures the entire media profile under saturated conditions to produce a reliable and accurate result.
To ensure the highest level of effectiveness, Convergent specifies that the FocalPoint HPMBS be tested within 90 days of commissioning, but no more than 270 days and we recommend the system be tested annually thereafter to provide ongoing quality assurance.
Maintenance In Mind – Simple & Cost Effective
The first year’s maintenance is included in all FocalPoint HPMBS installations to ensure that the system is given the best opportunity to succeed, and low cost annual maintenance contracts are available.
The potential failure for most LID/GI BMP’s is highest within the first year and success or failure is often dependent on whether the system is being properly inspected and maintained. Construction EcoServices’ commitment to system success doesn’t stop when the installation is complete.
- Build more – decrease a property’s surface storage volume requirements and increase lot yield.
- Spend less – FocalPoint is more than 30x smaller, per acre treated, resulting in a 50% cost savings.
- Look better – unlimited application and beautification opportunities for new construction and redevelopment.
- More flexibility – reap the advantages of a highly pervious expandable underdrain/storage/infiltration system
Why Do We Recommend This Product?
“This project demonstrated the Hybrid LID/BMP System’s ability to achieve high metals and suspended solids removal consistently over two rain seasons. The average removal percentage for total and dissolved copper was 97%, total and dissolved zinc was 98%, and TSS was 95%. Over the project life, the system received minimal maintenance and only two contractor maintenance cycles were performed to replace the top three inches of mulch on the LID biofilter.”
Segment from US Navy’s Final Technical Evaluation Report
Enhanced Metal Removal Where Industry Meets the Water
Developed by the US Navy, FocalPointEMR is a Green Stormwater Infrastructure system that eliminates harmful metals, nutrients, TSS, oil and grease from industrial site runoff.
Most industrial facilities are under increasing pressure from regulators and local communities to protect harbors, bays, lakes, and streams by reducing the elevated concentrations of environmental pollutants commonly found within their facility’s stormwater runoff. Facilities are challenged due to intense operations with heavy equipment, multiple pollutant sources, non-porous paved surfaces and buildings, storage areas, and aging drainage and stormwater management technologies. To help solve this challenge, US Navy engineers spent 10 years and tested dozens of optional media options to develop FocalPointEMR, an LID/BMP hybrid system that decreases the concentration of toxic contaminants to meet NPDES permit requirements. In addition, the small footprint and rapid processing times of FocalPointEMR is beneficial for industrial sites where usable space is at a premium.
FocalPointEMR Is Ideal For:
- Metal Recycling/Fabrication
- Oil & Gas Mining
- Light Industrial
- Roof runoff
- Sewer/Wastewater Facilities
- Manufacturing Facilities
- Transfer/Recycling Facilities
- Transportation Facilities
- Petroleum Stations/Terminals
- Other industries
How Does It Work?
The FocalPointEMR system is made of seven main components, working in succession to filter out TSS, fine particles, nutrients, oil, grease and metals. Runoff initially filters through a Gabion Barrier which prevents larger trash and debris from entering the system. Runoff then enters the Biofiltration System, where the stormwater percolates down through a mulch layer, engineered media and bridging stone before it enters the modular box underdrain. Once the modular box underdrain is full, runoff flows into the secondary treatment system. Here it percolates down through activated carbon char, which absorbs heavy metals, fluorides, iron and organic molecules. Then, through FS-50, an iron enhanced activated alumina on top of the underdrain that reduces dissolved contaminants.
- Hi-Flow Biofiltration System
- Modular Box Underdrain
- 2″ Gravel w/ Mesh
- 6″ Oxbow Activated Carbon Char
- 9″ Activated Alumina FS-50
- 4″ Underdrain w/ Stone
FocalPointEMR has full scale field verification under the Department of Defense, Environmental Security Technology Certification Program (ESTCP). In addition, the NAVFAC Engineering and Expeditional Warfare Center performed all testing and sampling protocols per the Washington State Department of Ecology’s Technology Assessment Protocol (TAPE) – Ecology and Naval Base Point Loma NPDES permit.
- High Performance Media – loading rate 1 gpm/SF (100 “/hr)
- Total Zinc – 98%, reduced effluent to below 95 ug/L
- Dissolved Zinc – 98%
- Total Copper – 97%, reduced effluent to below 33.2 ug/L
- Dissolved Copper – 97%
- Total Suspended Solids – 95%
- Total Phosphorus – 81%
- Oil and Grease – reduce effluent below 15 mg/L