Eurobodalla Integrated Water Cycle Management Strategy

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32 Eurobodalla Integrated Water Cycle Management Strategy Local water utility access licenses, major utility access licenses and domestic and stock access licenses have priority over all other access licenses. Regulated river (high security) access licenses have priority over regulated river (general security) access licenses and regulated river (supplementary water) access licenses. Finally regulated river (general security) access licenses have priority over regulated river (supplementary water) access licenses. All water rights are reduced in periods of low flow, although those with a higher priority licence will have their allocation diminished at a lesser rate. The amount of water required to be left for the environment has yet to be determined by the water management committees. It is likely though that the first water-sharing plan will require that the lowest 5% of the flows be left for the environment (95 th percentile). When the plans are reviewed after the mandated 10-year period, it is possible that in light of additional environmental data the environment may be allocated the lowest 20% of the flows (80 th percentile). Of the water left in the river it is likely that only 30% will be available for extraction by all users. It is generally accepted that ecosystems are highly vulnerable during low flow periods, but that natural flow regime variations are important to ensure a healthy and diverse ecological community. Developing draft management plans can be difficult in the absence of river flow management plans and specific local scientific knowledge about the ecology and conservation values of these river systems. It has been suggested that the precautionary principle be adopted in the future planning of the regional water supply scheme and in the development of draft management plans. The precautionary principle states that if there are threats of serious or irreversible environmental damage, a lack of full scientific certainty should not be used as a reason for postponing measures to prevent environmental degradation. Under the WM Act, town water use is subject to a maximum extraction volume. This maximum volume can be calculated in one of three ways: Existing entitlement: Many towns already have a volume entitlement specified in their works license or in a legal agreement. Reasonable entitlement: The volume of water the town can extract is calculated by reference to the demographic and geographic characteristic of the town, assuming reasonable demand management measures are in place. System capacity: A volume of water calculated on the basis of the current yield of the water management works. Where the volume calculated for the access license is greater than the volume currently used, the town may need to seek the Minister’s consent before extracting this extra water. Town water access licenses are to be reviewed every five years and varied according to the changes in population. However no allowances for additional water for new or expanded industries are made in this review. For Eurobodalla this means that additional water needs for commercial, agricultural or industrial uses within a town water supply will need to be met by: Surplus water within the town’s defined license volume Water efficiency gains The industry obtaining their own access through the purchasing of water from other users.
Eurobodalla Integrated Water Cycle Management Strategy Thus when considering the supply of non-urban users, Council must consider how it will source the water before committing to supply them. Other water sources may be appropriate for such users (e.g. reclaimed effluent). Protection of River Flows and Aquifers The water reforms aim to improve the health of rivers and groundwaters to ensure long term, secure and viable regional economies. The quality and quantity of water available in the rivers and streams is seen as an indicator of degradation. As part of the NSW Government’s reforms to ensure the long term sustainability of the rivers, Water Quality and River Flow Interim Environmental Objectives have been developed by the EPA (1999). These objectives are designed to guide plans and actions to achieve healthy waterways. The water management committees, in developing the water management plans, are required to utilise these objectives. The water quality objectives aim to protect: Aquatic ecosystems Visual amenity Primary contact recreation Secondary contact recreation Livestock water supply Irrigation water supply Homestead water supply Drinking water Aquatic foods. The river flow objectives aim to: Protect pools in dry times Protect low natural flows Protect important rises in water levels Maintain wetland and floodplain inundation Mimic natural drying in temporary waterways Maintain natural flow variability Manage groundwater for ecosystems Minimise effects of weirs and other structures. The IWCM strategy for Eurobodalla is an important step in achieving the overall reform objectives. In particular this strategy addresses: Community and stakeholder consultation in the formulation of strategies Innovation in the development of urban water services infrastructure Water conservation and water quality management, and its importance in the catchment context 6.1.2 Pricing Reforms A brief review of ESC’s current pricing policy for water services indicates the following noncompliance: 33
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Page 44 and 45: FACT SHEET 3 Rainwater Tanks 18 Eur
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Page 64 and 65: 38 Number of Persons 2,500 2,000 1,
Page 68 and 69: 42 % Occupancy 80% 70% 60% 50% 40%
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Page 74 and 75: 48 Demand ML/a Eurobodalla Integrat
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8.3.2 Immediate Measures 84 Eurobod
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9.2 South Durras 9.2.1 Background 1
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124 Provision of full reticulated s
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132 Stormwater Eurobodalla Integrat
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9.5 Mogo 9.5.1 Background 140 Eurob
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144 Social Issues Eurobodalla Integ
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9.11 Potato Point 9.11.1 Background
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9.14.2 What are the Issues? 202 Eur
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9.15.2 What Are the Issues? 208 Eur
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214 ML/a 8000 7000 6000 5000 4000 3
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228 SCENARIO 1 Regional Water Suppl
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