When must the visual assessment be conducted relative to control measure observations?

The visual assessment is required to be conducted no more than one month prior to the evaluation of the control measures. This timeframe allows for accurate observations of the effectiveness of the control measures in place for stormwater management. Conducting the visual assessment regularly within this period ensures that any changes or issues can be promptly identified and addressed to maintain compliance with environmental regulations and to protect water quality. Regular assessments help operators determine if their practices are functioning as intended and whether any adjustments are necessary to meet performance standards. This approach fosters proactive management of stormwater discharges, reducing the risk of contamination and environmental impact.