Eurobodalla Integrated Water Cycle Management Strategy

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26 Eurobodalla Integrated Water Cycle Management Strategy FACT SHEET 11 Decentralised Sewage Management What is Decentralised Sewage Management? Decentralised sewage management is an alternative option to connecting all properties to a centralised sewage treatment system. It can treat sewage from a single household or a small community. Decentralised sewage management includes septic systems and aerated treatment with effluent disposal options including pump-outs, adsorption trenches, lined evapotranspiration beds and spray irrigation. In Eurobodalla there are currently 3 400 on-site sewage treatment systems registered with Council. The cumulative effects of multiple poorly performing and aging systems can be significant. The Wallis Lakes oyster incident provides a good example of the potential risks and flow on effects from poorly treated sewage. Decentralised sewage management systems should meet the following environmental and health performance objectives over the long term: ♦ Minimised risk to public health ♦ Protection of land ♦ Protection of groundwater ♦ Conservation and reuse of resources ♦ Protection of community amenity ♦ Protection of surface waters. ♦ Specific decentralised sewage management opportunities can be found in section 9. Examples The towns of Nelligen, South Durras, Bodalla, Mystery Bay, Akolele, Potato Point, Tilba Tilba, Central Tilba, Rosedale, Guerilla Bay and Congo use decentralised sewage systems. Benefits Can adapt the system to reflect local characteristics Sewage is treated on site. Effluent treated to a high quality can be used locally. Improved compatibility with other IWCM options. Downstream benefits including reducing or delaying large infrastructure costs (size of mains and STP augmentations).
Eurobodalla Integrated Water Cycle Management Strategy 5 Integrated Water Cycle Management Options Assessment Criteria 5.1 Overview Having briefly outlined ‘where we want to be’ from the Council, community and government perspective, criteria for assessing the various IWCM opportunities and options could then be developed. 5.2 The Assessment Criteria Table 5-1 below presents the assessment criteria that were used for ranking each IWCM option developed in this report. 27
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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%
Page 72 and 73: 46 Annual Volume (ML/Yr) 2,500 2,00
Page 74 and 75: 48 Demand ML/a Eurobodalla Integrat
Page 84 and 85: 6.5.3 Stormwater Issues 58 Euroboda
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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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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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Eurobodalla Integrated Water Cycle Management Strategy

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