(1) BMP effectiveness monitoring.

(a) Monitoring procedures. WSDOT shall formulate and implement monitoring procedures for each type of BMP employed. The procedures shall include a quality assurance and control plan.

(b) Waivers. After application by WSDOT, ecology may grant a waiver from monitoring a BMP if ecology determines there is adequate knowledge about the BMP's water quality performance.

(2) Pesticide monitoring. WSDOT shall formulate a pesticide monitoring policy, including but not limited to, threshold determination and frequency of monitoring. WSDOT also shall formulate procedures for monitoring pesticides, including the use of benthic organisms.