Stormwater filter socks with multiple separated tubes

Abstract

Multiple-tube stormwater filter socks may be used to mitigate stormwater environmental runoff of sediment, hydrocarbons and heavy metals. The stormwater filter socks comprise at least two tubes that are spaced apart by a separator web, and are filled with different types of absorbent media. The stormwater filter socks may be placed around the top grate of a storm drain chamber, and around other environmental runoff sources such as trash bins, roof downspouts and outdoor material stockpiles. The multiple-tube stormwater filter socks may be used to mitigate drips and spills of hydrocarbons such as motor oils, and may be used to contain zinc, copper, lead, chromium, cadmium and other heavy metals.

Dependencies are inferred from the claim text.