page_title: Anstey Hill Recreation Park
section_title: Water filtration plant
hierarchical_section_title: Anstey Hill Recreation Park / Land use / Water filtration plant
caption_attribution_description: Water Storage tanks - connected to the water filtration plant at Anstey Hill Recreation Park, Adelaide, South Australia
context_page_description: Anstey Hill Recreation Park is a 362-hectare protected area established in 1989 and located approximately 19 kilometres northeast of Adelaide, South Australia. The park is a significant reserve of bushland in the foothills of the Mount Lofty Ranges and is home to rare or vulnerable native plants and animals, and problematic invasive species. It is managed by the City of Tea Tree Gully, the Department of Environment, Water and Natural Resources and a volunteer group—The Friends of Anstey Hill. The park is designed for recreational walking and has no visitor facilities. It is managed in association with the regional planning initiative known as of Yurrebilla, the Greater Mount Lofty Parklands.
  The park's land was gradually acquired by the Government of South Australia beginning in 1966, based on recommendations in a 1962 report. From 1981 onwards, plans were published that aimed to develop the area for commercial purposes, but public pressure led to its declaration as a public reserve in 1989. The last land added was a small area in 2003. Anstey Hill is a 371-metre-high peak in the park's south.
context_section_description: In the 1970s, the Engineering and Water Supply Department chose an area at the top of the park, adjacent to Lower North East Road, to build a water treatment works. Based partly on seismic refraction traverses, a ridge underlain by dolomite and quartzite was deemed to be stable enough for construction. The site was also selected because of its hydraulic advantages; all other sites would have required the construction of a major pumping station. The exact placement of the site was made so that it could not be seen from the metropolitan area. It has a design flow of 313 megalitres (ML) per day with a maximum capacity of 344 ML. The plant was commissioned in 1980 and uses filtration and sedimentation techniques to clean water from the Mannum to Adelaide pipeline. It was the second plant in Adelaide, after the opening of the Hope Valley plant in 1977. Most of the water is piped directly from the River Murray, but some is sourced from Millbrook Reservoir.
  The plant was intended to serve 70,000 homes in the outer northeastern suburbs of Adelaide, specifically those north of the River Torrens. The total construction cost was $14.5 million, including changes to the existing pipeline. As of 2005, the plant filters approximately 20% of Adelaide's water supply. A small hydroelectric plant began operating in adjacent Hope Valley in 2003, using the head of water as it flows down Anstey Hill. The plant is designed to supply 7,000 megawatt hours per year.
caption: Water storage tanks associated with the filtration plant
exif: {"Image Make": "FUJIFILM", "Image Model": "FinePix S5700 S700", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "GIMP 2.4.1", "Image DateTime": "2008:03:22 22:00:38", "Image YCbCrPositioning": "Co-sited", "Image Copyright": "", "Image ExifOffset": "270", "Image PrintIM": "[80, 114, 105, 110, 116, 73, 77, 0, 48, 50, 53, 48, 0, 0, 2, 0, 2, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0]", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail Orientation": "Horizontal (normal)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "2838", "Thumbnail JPEGInterchangeFormatLength": "7808", "Thumbnail YCbCrPositioning": "Co-sited", "EXIF ExposureTime": "1/125", "EXIF FNumber": "34/5", "EXIF ExposureProgram": "Aperture Priority", "EXIF ISOSpeedRatings": "64", "EXIF ExifVersion": "0220", "EXIF DateTimeOriginal": "2008:03:22 13:49:38", "EXIF DateTimeDigitized": "2008:03:22 13:49:38", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "4", "EXIF ShutterSpeedValue": "7", "EXIF ApertureValue": "11/2", "EXIF BrightnessValue": "83/10", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "18/5", "EXIF MeteringMode": "Pattern", "EXIF LightSource": "Unknown", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "69/5", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "3072", "EXIF ExifImageLength": "2304", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "EXIF InteroperabilityOffset": "2690", "EXIF FocalPlaneXResolution": "5376", "EXIF FocalPlaneYResolution": "5376", "EXIF FocalPlaneResolutionUnit": "3", "EXIF SensingMethod": "One-chip color area", "EXIF FileSource": "Digital Camera", "EXIF SceneType": "Directly Photographed", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF SceneCaptureType": "Standard", "EXIF Sharpness": "Normal", "EXIF SubjectDistanceRange": "0"}