Sydney      
        
     
  
 
          Quantification approach  
               
		Data source
  - SCA and NSW Office of Water agreement.
- Daily Return System (DRS) database.
- SCA compliance reporting to the NSW Office of Water.
 
Data provider
The Sydney Catchment Authority.
 
Method
Valve rating tables and stream gauging downstream of Woronora Reservoir for high environmental flow release.
 
Uncertainty
The volume is based on measured data. Estimated uncertainty based on accuracy of stream gauging is +/–10%.
 
Approximations, assumptions, caveats/limitations
Nil.