Two sampling locations in the SLD have been identified for monitoring. Site A will be used to monitor the inflow of drainage to the SLD. Drainage is presently dispersed through multiple wetland channels. Combining drainage flows into one channel, as a result of use of the GBP, will provide a better accounting of the quantity and quality of the drainage.

Site B will be used to assess compliance with selenium load limits established in the UA and to be developed by the CVRWQCB in the waste discharge permit. Water quality data will be evaluated along with flow to assess selenium loads.