Which one of the following is a key component of an effective stormwater management plan?

Regular inspection and maintenance is indeed a key component of an effective stormwater management plan. This practice ensures that the stormwater management systems, such as retention basins, drainage systems, and filtration devices, are functioning optimally to reduce pollutants from entering the water systems. Regular inspections help identify any issues or blockages that may hinder performance, allowing for timely repairs and maintenance, which are crucial in preventing flooding and ensuring compliance with environmental regulations.

In contrast, limiting the use of all industrial processes might not be feasible or effective because some processes may not pose a significant risk to stormwater quality. Focusing solely on wastewater treatment does not address the comprehensive needs of stormwater management, which involves managing runoff from various sources, including precipitation and industrial activities. Lastly, improvising solutions based on past experiences can lead to inconsistent results, as each site's conditions can change over time, and what worked previously may not be applicable in the current context. This highlights the importance of having a structured plan that incorporates regular monitoring and maintenance.