’s WATER STORAGES

BURRUM RIVER AND CASSAVA LAGOONS For the Hervey Bay supply, Wide Bay Water Corporation takes water from two separate catchments, the Burrum River and Cassava lagoons.

These two catchments are located approximately 40km west south-west of Hervey Bay. Lake Lenthall and the freshwater section of the upper Burrum River have a catchment area of approximately 709km2. The Burrum River catchment consists of the Seaview, Clifton and Robinson Ranges (200 - 300m in height) in the west and Wongi State Forest in the east. Lake Lenthall occurs at the confluence Wide Bay Water Corporation’s Water Supply Scheme of Logbridge, Doongul, Harwood, Duckinwilla and Woolmer creeks. The Cassava lagoon catchment The topography of the Cassava covers a much smaller area and Burrum River catchments Richmond Creek enters the of approximately 30km2. is relatively low and flat, which Burrum River below Lake The lagoons were initially is consistent with coastal Lenthall and in the pondage of constructed to irrigate a trial catchments of this region. Burrum Weir No.2. There are casava plantation. They are no major creeks discharging located at the headwaters of to the Burrum River in the Beelbi Creek which discharges pondage of Burrum Weir No.1. to Hervey Bay at . Hervey Bay’s WATER STORAGES

WATER INFRASTRUCTURE Temperatures are mild with program has been established average maximum/minimum to inform the water treatment Water is taken from storages and temperatures in the summer process and to meet operating transferred to the water supply months of 30ºC/19ºC and the licence conditions. Monitoring network as detailed in Wide winter months of 23ºC/10ºC. includes water quality, quantity Bay Water Corporation’s Supply and flow, in addition to bank Scheme diagram (previous page). Rainfall patterns for the stability and blue-green algae catchment are typical of a monitoring. Historically, the Water supply infrastructure on subtropical environment catchments display relatively the Burrum River includes Burrum with highest rainfall falling high-quality water for sub- Weir No.1, Burrum Weir No.2 in the summer months. tropical storages. Stratification and Lake Lenthall. The Cassava typically occurs during the lagoons provide additional raw WATER QUALITY summer months with the water as a supplement to that thermocline (layers of varying sourced from the Burrum River. The quality of water in the temperature) breaking down storages is impacted by land during early Autumn. CLIMATOLOGY use and other activities that occur in the catchment. The catchments of Lake Lenthall and the Cassava WBWC monitors water quality lagoons are located in the in each of the water supply subtropics of . storages. The monitoring Hervey Bay Water Cycle HERVEY BAY WATER CYCLE

Rain 1. Seaview, Clifton and Robinson ranges 1. Water collected from the Burrum River and Cassava Harwood Duckinwilla Doongul Woolmer catchments is stored in Creek Creek Creek Creek Logbridge Lake Lenthall, Burrum River Creek 1. Lake Lenthall Weir 1 and 2, and the 2. Howard Cassava Lagoons. WTP 2. Water is pumped from 1. Cassava 1. Burrum River Weir 2 Dam storage to treatment 2. Burrum River Raw water Burgowan Treated water plants to make it safe for 1. Burrum River Weir 1 3. Water WTP Raw sewage reservoirs drinking. Reuse water 3. Treated water is pumped 4.Houses and businesses into water reservoirs for 5. Sewage collection system 5. Eli Creek WWTP storage.

6. Golf courses 4. Treated water is supplied to 6. Pulgul residences and businesses. 5. Pulgul WWTP 5. Nikenbah WWTP Plantation 6. Sporting fields 5. Wastewater is collected and More than 90% of Hervey Bay’s wastewater is reused. treated to Class B Recycled 6. Nikenbah 6. Sunshine 6. Bunya Plantation Plantation Plantation Water. 6. Hebblewhite 6. Recycled water is piped into Plantation 6. Cane and farms and tree plantations. turf farms

29-31 Ellengowan Street, Hervey Bay Q 4655 1300 79 49 29 | www.widebaywater.qld.gov.au