BioMod® Modular Bioretention System Receives Equivalency Approval from the Washington State Department of Ecology
Aug 03, 2018
Oldcastle Precast is pleased to announce the BioMod® Modular Bioretention System has received equivalency approval from the Washington State Department of Ecology as a stormwater bioretention planter or planter box.
Oldcastle Precast is pleased to announce the BioMod® Modular Bioretention System has received equivalency approval from the Washington State Department of Ecology as a stormwater bioretention planter or planter box.
By granting the BioMod “functional equivalency”, Ecology has formally recognized that Oldcastle’s precast bioretention system does not need to go through the Technology Assessment Protocol – Ecology (TAPE) program for approval, and may be designed using the same standards and criteria as any non-proprietary bioretention planter or planter box.
Designers can work directly with Oldcastle Precast to include the BioMod system on project plans to meet Ecology’s or any other agency’s requirements for bioretention in a complete and pre-assembled precast system.
The BioMod system is a conventional, vegetated bioretention system designed as a series of modular precast concrete sections which are filled with layers of mulch, bioretention media, and drain rock. Standard components include both trench and end modules as well as modules for various inlet configurations, pretreatment, and high-flow bypass.
The number and size of the modules, as well as the overall configuration of each system, is determined on a site-specific basis. The BioMod system can be configured as a stand-alone planter box consisting of a single concrete module.
Trench modules can be provided with open bottoms to promote infiltration onsite or with closed bottoms and underdrains to connect to downstream storm drains. The BioMod system typically incorporates non-proprietary, low flow rate media with media components and thicknesses specified by the local regulatory agency. A wide variety of plants or trees may be used in the BioMod system. Plantings appropriate for the local area are typically specified by the designer.
“Now that the BioMod system has received a functional equivalency approval from Ecology as a bioretention system, designers will have a precast, prefabricated, modular option for stormwater bioretention,” said Joanna Ogintz, Oldcastle Regulatory Engineer.
“Designers and engineers can easily follow an agency’s standard bioretention design guidance to design a BioMod system to meet the stormwater treatment requirements for their site. With the BioMod system, Oldcastle Precast can provide the most cost-effective, complete stormwater bioretention system available on the market.”
About Oldcastle Precast
Oldcastle Precast, A CRH Company, is the leading provider of building materials, products and services for infrastructure projects to several market sectors nationwide, including: Building Structures, Communications, Energy, Transportation and Water.
About CRH
CRH is a leading global diversified building materials group, employing c.85,000 people at c.3,600 operating locations in 32 countries worldwide. With a market capitalisation of c.€23 billion (April 2018), CRH is the largest building materials company in North America and the second largest worldwide. The Group has leadership positions in Europe as well as established strategic positions in the emerging economic regions of Asia and South America. CRH is committed to improving the built environment through the delivery of superior materials and products for the construction and maintenance of infrastructure, housing and commercial projects. For more information, visit http://www.crh.com.
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Contact
Oldcastle Precast
900 Ashwood Parkway, Suite 600
GA 30338 Atlanta
United States
Phone:
+1 303 209-8000
Fax:
+1 303 794-4297