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  • Water Quality Journal - Lakes Need Water
    Basin water entitlements Interpreting the data can be difficult Below is the opinion of The Water Dude 27 October 2009 At the moment the EC of water in the Clayton Goolwa channel is about 9000 and a bit lower in the lower Finniss at about 5000 We think that the main invasion of tubeworm started when the EC was about 10 000 so we must be on the brink of another invasion as soon as evaporation takes hold and waters warm up 14 October 2009 Not much to add except 14GL of the 27 5GL has been pumped to date 8 October 2009 DEH have just released latest to 16 Sept Goolwa channel report All better here for the time being However DEH have not publically released any data of monitoring results from Lock 1 to Lake Alex including Loveday Bay since July despite numerous requests Also better water quality now for Wood Point and Tailem Bend which are returning to normal after numerous saline incursions over last few months 9 September 2009 The DEH have released several new fact sheets about wind seiching salinities diatoms etc in the lakes Coorong Read a quick recap of how the water salinity has changed recently 7 September 2009 Photos of the water at Goolwa These images have not been retouched 26 August 2009 Latest EPA report on water monitoring has just been released including photos of the site and acid sulfate soil minerals Still problems with the lower CCk and note comment the difficulty in managing acidity once it has been generated A new acid hotspot on the western side of the lower Finniss has also been identified Saw an EPA vehicle with plastic canoe on top drive by this morning If they went out to collect water samples today with 40

    Original URL path: http://www.lakesneedwater.org/water-quality-journal (2016-02-09)
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  • Turtles - Lakes Need Water
    species of fish to eat the tubeworms and keep them in balance the tubeworms become a problem The tubeworms attach to the tortoise s shell weighing them down preventing them from pulling in their legs and neck leaving them open to heavy predation by rats foxes and birds Once again the barrages by artificially dividing the sea from freshwater are causing environmental harm on an altered ecosystem It is believed

    Original URL path: http://www.lakesneedwater.org/home/turtles (2016-02-09)
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  • The Unforseen Problem - Lakes Need Water
    estuary Click on any photo to enlarge Photo 1 Photo 2 Photo 3 Thousands of tonnes of sand accumulating along former shore lines are irreversibly changing the physical landforms and the RAMSAR lakeside wetland littoral zone will never be the same again See Photos 4 and 5 sand dune build up along the shore near Clayton Photo 4 Photo 5 In March 2009 pockets of acidic soils exposed by wind

    Original URL path: http://www.lakesneedwater.org/letters/eis-submission-t-harden/Unforseen_Problem (2016-02-09)
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  • Meetings - Lakes Need Water
    Facts Vision Statement The Barrages Photo Gallery Latest News Letters and Submissions More Reading Maps About Us Links Act Now Meetings Wetland Rivers Group Conference 9 Sep 2009 Including RAMSAR discussion Regulator meetings 18 June 2009 Subpages 2 Regulator Meetings

    Original URL path: http://www.lakesneedwater.org/meetings (2016-02-09)
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  • The Case for Seawater - Lakes Need Water
    freshwater lakes behind the barrages Olsen 1991 Some locals still remember what life was like before the barrages Their stories have been told in these interviews Excerpt from an interview with Bert Lundstrom There was all salt water in Goolwa in those days We used to go down with a little net down opposite the station Goolwa railway station then we d walk around and get a feed of mullet You could fish off the wharf there was a lot of garfish around Or this excerpt from an interview with Richard Spencer We did a lot of swimming actually out from the wharf There were a couple of walkways with ladies and mens bathing sheds situated out along this walkway and we used to swim there In the early days before the barrage was built it was all clear salt water and it was beautiful swimming And this excerpt from the interview with Jim Marsh Barrage Superintendent Goolwa As the South Australian Government in the meantime had long foreseen or been made aware of the need for some sort of a structure at the Murray Mouth They came up with a scheme designed it and submitted a proposal and it was approved Goes back a long way the early settlers the country around Mundoo Island Hindmarsh Island was settled in about 1840 1841 It was mainly cattle grazing because of the ephemeral nature of the Murray and the very flat terrain it was a constant battle of forces between the sea and the river You ve got fresh water coming down it pushes the sea water out and everything s hunky dory but if you get a dry year and the river doesn t flow then the tides push the sea water in and as in 1915 it was a bad drought year the sea water penetrated up to Mannum they were catching Mullet at Mannum and there was a sighting of a shark at Tailem Bend and a dolphin at Murray Bridge History Post Barrages 1940 s to now From this report in 2004 prepared for the MDBC The Living Murray The River Murray estuary would have naturally offered a wide range of fresh brackish saline and hypersaline systems Newman 2000 From the earliest days of settlement landowners along the lower reaches of the river were making strong representations for the construction of barrages primarily to keep the water fresh in the lower reaches of the River Murray as well as in Lake Albert and Lake Alexandrina MDBC 2002 Another report the Murray River Barrages Environmental Flows Report was produced for the Murray Darling Basin Commission in 2000 It s purpose was to provide guidance to the Commission from a panel of scientists to better manage the river for the benefit of the environment A few excerpts below are from the report and clearly acknowledge that the Lower Lakes were once part of a much larger estuary that included the Coorong Separating the Coorong from the Lower Lakes with

    Original URL path: http://www.lakesneedwater.org/case-for-seawater (2016-02-09)
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  • Trigger Level - Lakes Need Water
    remaining in situ but are moving in large quantities whenever winds exceed low velocities with significant and potentially extreme environmental and human consequences With lake water levels at about 1 0 AHD in March 2009 there are already large expanses of exposed soils sands and mud exposed around the shores of the lakes and in channels in the vicinity of Goolwa Currency Creek the Finniss River and Clayton As levels

    Original URL path: http://www.lakesneedwater.org/letters/eis-submission-t-harden/trigger-level (2016-02-09)
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  • Seawater Option - Lakes Need Water
    the only available option it was needed months ago and must be allowed through the barrages to raise lake water levels and cover exposed soils as soon as possible These problems are already severe and are escalating as levels fall further but they can t be addressed with the sea water solution until the Pomanda Island weir is in place and functioning to protect river water supply pump intakes from

    Original URL path: http://www.lakesneedwater.org/letters/eis-submission-t-harden/seawater-option (2016-02-09)
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  • Wind and Weir - Lakes Need Water
    Barrages Photo Gallery Latest News Letters and Submissions More Reading Maps About Us Links Act Now Letters and Submissions EIS Submission T Harden Wind and Weir 5 The EIS must factor in the windblown soil issue and the role of the weir In relation to the current government policy of holding out as long as possible for a freshwater solution already too little too late the sea water river water

    Original URL path: http://www.lakesneedwater.org/letters/eis-submission-t-harden/wind-and-weir (2016-02-09)
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