2009 Power and Water Corporation Drinking Water Quality Report
Total Page：16
File Type：pdf, Size：1020Kb
power and water corporation 2009 drinking water uality REPORTmajor and minor urban centres power and water corporation > drinking water quality report major and minor urban centres 2009 3 contents from the managing director.......................................................................................................................................... 4 section a: framework for drinking water quality management................................................................................5 1. Commitment to drinking water quality management ........................................................................................................ 6 2. Assessment of the drinking water supply system .............................................................................................................................7 3. Preventative strategies for drinking water supply ........................................................................................................................... 9 4. Operational procedures and process control ..............................................................................................................................................10 5. Verifcation of drinking water quality ................................................................................................................................................................................11 6. Incident and emergency response .......................................................................................................................................................................................... 13 7. Employee awareness and training ............................................................................................................................................................................................ 13 8. Community involvement and awareness ............................................................................................................................................................. 13 9. Research and development ....................................................................................................................................................................................................................... 14 10. Documentation and reporting ....................................................................................................................................................................................................... 15 11. Evaluation and audit.................................................................................................................................................................................................................................................... 15 12. Review and continual improvement ...............................................................................................................................................................................16 section b: drinking water quality and performance ........................................................................................................................................................................................................................19 Microbiological results summary ...................................................................................................................................................................................................... 20 Chemical and physical results summary .........................................................................................................................................................................22 Customer satisfaction.......................................................................................................................................................................................................................................................24 appendices .........................................................................................................................................................................................................................................................................26 Appendix 1: Water quality results tables ......................................................................................................................................................................... 26 glossary of acronyms ......................................................................................................................................................................................33 units of measurement ......................................................................................................................................................................................33 standards ............................................................................................................................................................................................................................................................................ 34 4 from the managing director Power and Water has an obvious Power and Water is working to raise lead role to play to ensure a safe and the Darwin River Dam spillway and sustainable supply of good quality is evaluating Manton River Reservoir drinking water for Territorians. for reintroduction as a drinking water source. An integral part of these From the desert to the tropics we types of projects is the maintenance manage water from sources as varied of water quality. The Manton as underground aquifers more than project includes a comprehensive 10,000 years old to above-ground monitoring program that will reservoirs that overfow nearly every ensure the provision of quality year in the tropical Wet Season. drinking water from this resource. Across these varied conditions Multiple barriers against and some 1.3 million square contamination provide the kilometres, Power and Water maximum protection for water has an established program of supplies. In Elliott we have installed monitoring at the sources and an ultra-violet disinfection unit as throughout its distribution systems. an additional barrier signifcantly This annual report provides details increasing the security of this supply. on our water quality management Sustainable water supply continues Andrew Macrides system and the results of our water to be a priority for utilities across Managing Director quality monitoring for 2008-09. Australia and Power and Water Power and Water Corporation However, our major centres faces the same issues. We continue continue to grow and change to work with our communities to and this report also outlines our encourage responsible use of this priorities for future investment precious resource. and continual improvement. section a: framework for drinking water quality management The Australian Drinking Water Guidelines (the 2004 ADWG) were published by a joint committee of the National Health and Medical Research Council (NHMRC) and Natural Resource Management Ministerial Council (NRMMC) in 2004. Based on the best available scientifc evidence, these national guidelines provide a framework for good management of drinking water supplies and an authoritative reference on what defnes safe, good quality water, how it can be achieved and assured. Power and Water is committed to providing safe drinking water by adopting and implementing the Framework for Management of Drinking Water Quality included as a key part of the 2004 ADWG. There are 12 elements to the Framework, which is based on a proactive approach to ensuring the safety of drinking water by managing all steps in water supply from catchment to consumer. The 12 elements are outlined in this report. 6 1. commitment to drinking water quality management Power and Water is committed to While Power and Water has primary The Department of Resources being a trusted provider of safe, good responsibility for providing safe (DoR) undertakes independent quality drinking water. This is outlined drinking water through the Water analyses of water samples through in our Drinking Water Quality Policy Supply and Sewerage Services Act, a its laboratories in Darwin and and Customer Contract. A copy of the number of government agencies are Alice Springs. Customer Contract is available at any also involved. The Department of Construction Power and Water offce or at www. DHF has a key role in applying and Infrastructure (DCI) has a major powerwater.com.au the 2004 ADWG and monitoring role in protecting water quality compliance with them in the interest through land use planning. of public health. SummaRy Of POwER These agencies coordinate and and waTER’S dRinking The Department of Natural Resources, cooperate to ensure highest Environment, The Arts and Sport standard of water quality is waTER QualiTy POlicy (NRETAS) also has a role in protecting achieved and maintained. water quality, including the regulation We aim to provide you with a and management of water resources good quality, safe and reliable and the regulation of pollution control. water supply. We will: • Supply drinking water, appropriate to the environment in which the community is located, in accordance with parameters set by the 2004 ADWG. below > water f low recording. darwin river reservoir pump station • Monitor the quality of drinking water in line with the Drinking Water Operational and Verifcation Monitoring Program