Structural-based BMPs use physical measures to achieve which outcomes?

Structural-based BMPs use physical measures to achieve which outcomes?

• A. Minimize pollution (prevention and containment)
• B. Divert pollutants for treatment (mitigation and ultimate release)
• C. Both minimize pollution and divert pollutants for treatment
• D. Do not use physical measures

Answer: (C)

Structural-based BMPs rely on built, physical controls to manage runoff. They minimize pollution by preventing contaminants from leaving the site and by containing them, such as sediments and nutrients, within the site boundaries. They also divert runoff to treatment processes or devices where pollutants are removed or treated. Because these practices combine both prevention/containment and diversion for treatment, they achieve both outcomes. Options that suggest only prevention, only diversion, or no physical measures don’t fit, since these BMPs are defined by physical structures like ponds, filters, and separators that perform both roles.

Structural-based BMPs rely on built, physical controls to manage runoff. They minimize pollution by preventing contaminants from leaving the site and by containing them, such as sediments and nutrients, within the site boundaries. They also divert runoff to treatment processes or devices where pollutants are removed or treated. Because these practices combine both prevention/containment and diversion for treatment, they achieve both outcomes. Options that suggest only prevention, only diversion, or no physical measures don’t fit, since these BMPs are defined by physical structures like ponds, filters, and separators that perform both roles.