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Filtration CharacteristicsMedia Surface AreaFiltration flow rates are typically expressed as a surface area specific operating rate such as gallons per minute per square foot (gpm/ft2) of surface area. Lower specific operating rates translate to better performance and longer maintenance cycles. Specific operating rates higher than 2 gpm/ft2 of

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If more than one type of infiltration system meets your project requirements, your decision may be cost driven. It’s important to maximize the storage efficiency in the available space at the lowest possible cost.Underground, Open-Bottomed Chambers This example highlights the need to evaluate multiple options and configurations to find the most

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1. IrrigationIrrigation is the most common application for harvested water. Treatment requirements are lower, which makes the harvesting system simpler, and the demand can quickly drain the cistern to make room for the next storm event. However, relying solely on irrigation for net-annual runoff reduction is rarely enough. In most locations, there

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Stormwater management is a broad topic, significant to us all.   It is important for the environment, there are endless regulations to abide by, an ever-expanding portfolio of products to choose from, budgets to meet and many opinions to consider. This is why we created The Stormwater Blog.At Contech, we have experts who have been in the stormwater

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Filtering stormwater is an effective way to remove the most challenging pollutants from urban runoff - including fine solids, soluble heavy metals, and total nutrients. Though the physics of filtration are the same, there are many variables to consider when designing a stormwater filtration system. It’s important when designing a filter treatment

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All stormwater BMP’s will require maintenance at some time or time interval. Long-term maintenance costs and maintainability are very important considerations. Here are some other things you should consider when discussing maintenance of your stormwater filtration system.1. Evaluate availability of maintenance contracting. It is the nature of

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Water is necessary for economic growth, a healthy environment and vibrant communities for future generations. With gridlock in Washington and broken budgets at all levels of government, it may not seem like the right time to make broad changes in water management policy. But change is happening and the catalyst for that change is stormwater

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As the economic downturn continues to shrink state coffers budget cuts have rendered numerous government programs nearly inoperable. Unfortunately, stormwater management and other water quality initiatives have not been spared from a similar fate.Considering that many state and municipal stormwater programs were already operating with a skeleton

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Inspection and maintenance are key factors for making sure that your biofiltration box is performing as designed and achieving the required water quality standards.  Here are a few things to keep in mind...1. Protection from Construction DebrisBioretention box soil must be protected from compaction by heavy equipment traffic during construction.

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