Appendix B – Action and Limit Levels for Water Quality Monitoring

Parameter	Level	SR1	SR2	SR3	SR4	SR5	SR6	SR7
Dissolved Oxygen	Action	Surface & Middle: 80% of upstream control station at the same tide of the same day Bottom: 80% of upstream control station at the same tide of the same day
	Limit	Surface & Middle: 4mg/l Bottom: 2mg/l
Turbidity (Depth Averaged)	Action	120% of upstream control station at the same tide of the same day
	Limit	130% of upstream control station at the same tide of the same day
Suspended Solids (Depth Averaged)	Action	120% of upstream control station at the same tide of the same day
	Limit	130% of upstream control station at the same tide of the same day

Remarks: During ebb tide, the upstream control stations are C2 while during flood tide, the upstream control stations are C4 and C5.