Document ID: chunk:federal_register_of_legislation:F2022C00227:reg:12
Version: federal_register_of_legislation:F2022C00227
Segment Type: reg
Provision Reference: reg 12
Character Range: 153573–155853

12                    VSDig,t,q               Volatile solids discharged from an anaerobic digester at project treatment facility t into open lagoon q                                     Tonnes                                                   Volatile solids must be measured under Method 2540E of the American Public Health Association Method or an equivalent Australian or international standard.                                                      The total amount of volatile solids of digestate treated in the reporting period must be derived by extrapolating the amount of volatile solids in the sample to the wet weight of digestate material (see parameter QDig,t,n) that was treated in the lagoon in the time between the sample measurements.
                                                                                                                                                                                                                                                    Samples from composite of amounts of digestate collected before being sent to an open lagoon.
                                                                                                                                                                                                                                                    Enough samples must be collected to produce a representative sample.
                                                                                                                                                                                                                                                    Frequency:
                                                                                                                                                                                                                                                      (a) at least once a month; or
                                                                                                                                                                                                                                                      (b) if less frequent than once a month—on each occasion the digestate is treated in an open lagoon.