Catch basin inserts are used to trap what?

Catch basin inserts are specifically designed to trap contaminants found in stormwater runoff. The primary function of these inserts is to improve water quality by filtering out pollutants, such as oils, heavy metals, and other hazardous substances, before they can enter the stormwater system and ultimately reach local waterways. This role is crucial in preventing environmental degradation and protecting aquatic ecosystems.

While debris and sediment may also be captured by the inserts, the focus on contaminants differentiates the primary purpose of catch basin inserts. Sediment alone does not encompass the full range of pollutants that may harm water quality. Thus, the emphasis on contaminants highlights the inserts' capability to manage a variety of harmful substances, which aligns with regulatory efforts to maintain and enhance water standards.