• System responds to new water management legislation -- SB 790 -- due to be implemented in State of California January 1
COSTA MESA, CA, Nov. 6, 2009 -- A patented new system launched by a Southern California company captures, cleanses and recycles stormwater and urban runoff from parking facilities, plazas and other hardscape structures in a simple, cost-effective manner that is in tune with our nation's rising concerns about environmental quality and conservation of natural resources.
Called Oceansafe, the system is a low cost/low impact stormwater management concept that mimics nature's cleansing process and meets the needs of architects, developers and owners who are designing and building more environmentally sensitive projects, especially in urban areas. The system can be installed as part of hardscape structures such as parking facilities, plazas, sports arenas, sidewalks, and roadways and is almost 100% effective in collecting and recycling water runoff. Oceansafe not only reduces urban runoff, but it also collects, stores, filters, and recharges local groundwater tables, saving water utilities the need to import thousands of acre feet of water.
Oceansafe's launch corresponds with the State of California's recently approved Stormwater Resource Planning Act, SB 790, that allows municipalities to tap funds from two of the state's existing bond funds for projects that reduce or reuse storm water, recharge the groundwater supply, create green spaces and enhance wildlife habitats. The two bonds are Proposition 50, the $3.44-billion water security bond passed by California voters in 2002, and Proposition 84, the $5.4-billion safe drinking water bond passed in 2006. SB 790 takes effect January 1.
Pollution from urban runoff is the main reason that 40% of the lakes, rivers, and streams in the United States are unsuitable for fishing and swimming. -- U.S. Environmental Protection Agency "Oceansafe is a more effective stormwater containment and management system that can be installed at any facility to address non source-point stormwater runoff," explains Lee Shaw, president of Oceansafe Inc. "Our tests show that for so-called 'first flush' stormwater containment, it's the most effective system yet developed." First flush is the first 3⁄4 of an inch of water generated from a rain storm or other runoff and is considered the most critical to capture and cleanse because it contains most of the particles and other elements that are harmful to the environment.
Shaw points out that Oceansafe not only reduces urban runoff, but it also collects, stores, filters, and recharges local groundwater tables, saving municipalities the need to import thousands of acre feet of water. As an added benefit, a sustainability consultant has calculated that Oceansafe has the potential for a real estate project to earn up to 13 LEED (Leadership in Energy & Environmental Design) credits with the correct design and implementation of the system, a significant addition for any development pursuing LEED certification.
Stormwater Contaminants
In metropolitan and urban environments, large parking and vehicle use areas produce significant amounts of hydrocarbons and rubber and copper residues from vehicles. "These contaminants must be removed from the water prior to allowing it to percolate naturally into the pervious lens," Shaw notes. "The long term effects of allowing unfiltered water containing contaminants to percolate into the water table and aquifer are well known and can be extremely damaging to the environment."
Shaw says that prevailing federal, state and municipal regulations mandating stormwater containment and management have not been very effective in metropolitan and urban areas.
"In places like Los Angeles and San Francisco, the rapid growth of those cities and the associated rapid increase in property prices, coupled with the lack of affordable open land, has left all the regulatory agencies involved in stormwater runoff management scrambling to find a viable, cost-effective solution," he says. "Catchment basins and water retention ponds require large land areas and are not readily available in the metropolitan and urban environment."
Pervious concrete is a more common solution but does not employ any active filtration -- a significant drawback -- and will not carry the heavy loads that reinforced concrete will support, and finally, it is not very pleasing aesthetically, Shaw notes. Open pavers have many of the same problems.
Two Years of Research & Development
The Oceansafe system is the result of more than two years of research and product development and can be designed to meet the needs of most environments, but it is primarily a metropolitan or urban stormwater containment and filtration system. "In our research it became evident that as more and more housing and other development is being planned for urban areas, the need for runoff containment and filtration systems such as Oceansafe will increase dramatically in these urban areas," Shaw notes.
