Table A1.2 Framework elements applied to the use of recycled water through a dual- reticulation system Framework element and Activity components Element 1: Commitment to responsible use and management of recycled water quality Authority EPA), the local council and the developers. — Components: Regulatory requirements identified included the Responsible use of recycled water • Recycled water policy Public Health Act – Regulatory and formal Environment Protection Act – requirements – Water and Sewerage Acts Engaging stakeholders Other stakeholders were • local community – Development of the • plumbers and builders – scheme involved collaboration between the water general public. – utility, the state department responsible for human health (eg Health Department HD), the state — department responsible for the environment (eg Environmental Protection Element 2: Assessment of the recycled water system toilet flushing Components: – residential garden uses, car washing, etc Identify intended uses and source – of recycled water spray irrigation of parks and reserves (local council) – Source of water is a large metropolitan sewage treatment plant. • Intended uses included • A catchment survey was undertaken to identify industries attached Recycled water systems analysis • to the collection system. The scheme included enhanced secondary treatment (with nutrient • reduction), coagulation, dual-media filtration and chlorination. Recycled water is distributed through a separate reticulation system, • incorporating a 5 ML balancing storage before it reaches consumers. The system was installed in accord with WSAA Sewerage Code (WSAA 2002a). Version 2.1 The treatment plant includes a marine discharge and results from Assessment of water quality data • chemical testing undertaken over a 10-year period, in accord with EPA licence conditions were available for assessment.
Table A1.2 Framework elements applied to the use of recycled water through a dual- reticulation system Framework element and components Activity Element 1: Commitment to responsible use and management of recycled water quality Components: Responsible use of recycled water Recycled water policy Regulatory and formal requirements Engaging stakeholders • Development of the scheme involved collaboration between the water utility, the state department responsible for human health (eg Health Department — HD), the state department responsible for the environment (eg Environmental Protection Authority — EPA), the local council and the developers. • Regulatory requirements identified included the – Public Health Act – Environment Protection Act – Water and Sewerage Acts • Other stakeholders were – local community – plumbers and builders – general public. Element 2: Assessment of the recycled water system Components: Identify intended uses and source of recycled water • Intended uses included – toilet flushing – residential garden uses, car washing, etc – spray irrigation of parks and reserves (local council) • Source of water is a large metropolitan sewage treatment plant. Recycled water systems analysis • A catchment survey was undertaken to identify industries attached to the collection system. • The scheme included enhanced secondary treatment (with nutrient reduction), coagulation, dual-media filtration and chlorination. • Recycled water is distributed through a separate reticulation system, incorporating a 5 ML balancing storage before it reaches consumers. The system was installed in accord with WSAA Sewerage Code Version 2.1 (WSAA 2002a). Assessment of water quality data • The treatment plant includes a marine discharge and results from chemical testing undertaken over a 10-year period, in accord with EPA licence conditions were available for assessment.
water-recycling-guidelines-full-21.docx