Which statement best describes temporary erosion controls compared with post-construction controls?

Which statement best describes temporary erosion controls compared with post-construction controls?

• A. Temporary erosion controls are meant to minimize sediment during land disturbance; post-construction controls manage runoff after development.
• B. Temporary erosion controls are permanent.
• C. Post-construction controls are temporary.
• D. Post-construction controls do not affect water quality.

Answer: (A)

Temporary erosion controls focus on preventing sediment from leaving the site while soil is exposed and disturbed during construction. Post-construction controls are designed to manage runoff and protect water quality after development is finished, often functioning long-term. So the best description is that temporary measures minimize sediment during land disturbance, whereas post-construction measures address runoff after development. This captures the distinct timing and purpose of each set of controls. Temporary controls are not permanent; they’re put in place for construction, then removed or upgraded as work completes. Post-construction controls are not temporary—they’re intended to remain or operate for the life of the development to treat and manage stormwater. And post-construction controls do affect water quality, since they’re specifically designed to reduce pollutants in runoff.

Temporary erosion controls focus on preventing sediment from leaving the site while soil is exposed and disturbed during construction. Post-construction controls are designed to manage runoff and protect water quality after development is finished, often functioning long-term. So the best description is that temporary measures minimize sediment during land disturbance, whereas post-construction measures address runoff after development. This captures the distinct timing and purpose of each set of controls.

Temporary controls are not permanent; they’re put in place for construction, then removed or upgraded as work completes. Post-construction controls are not temporary—they’re intended to remain or operate for the life of the development to treat and manage stormwater. And post-construction controls do affect water quality, since they’re specifically designed to reduce pollutants in runoff.