The volume recognised in the water accounting statements (937 ML) represents the allocation remaining for high-reliability water shares (HRWS) in the Bacchus Marsh Irrigation District and Werribee Irrigation District within the Melbourne region. Allocation on regulated flows remaining – high-security, individual irrigation holder water access entitlements was calculated as shown below.
| Account | Volume (ML) | |
|---|---|---|
| Opening balance (01 July 2009) | 0 | |
| add | 25.1.2.2 Allocation announcement on regulated flows – high-security water access entitlement | 3,490 | 
| less | 14.7.2.2 Allocation diversion of regulated surface water flows – high-security water access entitlement | 2,553 | 
| less | 26.1.2.2 Adjustment and forfeiture of allocation on regulated flows – high-security water access entitlement | 0 | 
| Closing balance (30 June 2010); 8.1.2.2 Allocation on regulated flows remaining – high-security, individual irrigator holder water access entitlement | 937 |