Wherever water levels have been lifted from their former undeveloped elevation must be considered the full extent of the reservoir/s. This crucial detail is not set out in the ER; however, the full extent of the cascading facilities must be considered when detecting, measuring and reporting total GHG emissions (CH2, CH4 and N2O). This cascading system creates one very large artificial and ongoing multi-level series of reservoirs that are highly regulated through the WRWMP, and likely very high in GHG emissions.