While it has been generally accepted that the upper reaches of the Moorabool River have been spring fed there has always been some debate about whether or not the lower section would completely dry out under natural conditions.
It was therefore interesting to come across a newpaper article from the 1920s that talked about the river drying out for the "first time within the memory of man".
"Seizing the opportunity of visiting this interesting geological locality of the Moorabool River shortly after the discovery of the fossil, I found the river bed dry for the first time within the memory of man, to be easy walking where formerly there was a fine stream for fishing. The diversion of the head waters, the dry season, and the pumping operations of the Australian Cement Company carried on beneath the level of the stream bed, have all contributed to the present condition of things."
That isn't to say it hadn't gotten close before;
Owing to the exceptionally dry season the Moorabool River, near Fyansford and at Batesford, and places beyond, is exceptionally low, and in a few parts it is nothing but a succession of waterholes. April rains generally improve the river and make it run, but this year there has scarcely any rain. The river flats are very dry.
Nor that people hadn't been upset by it;
Said Cr. Broom at the Bannockburn Council meeting yesterday: "Have we any control over the water that runs down the rivers?"
Somebody replied "No," whereat Cr. Broom asked again indignantly, "But is anybody entitled to take all the water out of a river?" This time the
reply again was "No."
"Then," asked the Lethbndge Councillor, "Well' someone is taking the water out of the Moorabool River, and leaving it in a string of pot holes
with fish dying on the banks."
"Who is the offender?" asked the shire Secretary, and Cr. Broom indicated the State Rivers and Water Commission and the Geelong Waterworks
Trust. They were not actually taking ihe running water, but their storage dams had locked the water up at the head of the river and the people are not getting it lower down. They should enter a protest. It was not fair to either man or beast. They had locked up water that the people should be getting.
Cr. Gillett said that he had been approached by people who had asked that a public meeting be called to protest against tbe locking up of all the water. Some of it should be allowed to run.
Another councillor had heard that a big weir was to be constructed, and that would be worse.
WATER RUNNING TO WASTE.
LAL LAL, Friday.
A movement is on foot to bank Lal Lal
Creek to replenish Ballarat water supply.
Lal Lal Creek is supplied by several never
failing springs, and the water runs to
waste. The Railway Commissioners have
granted permission to construct the bank,
winch will be undertaken immediately. A
pump is to be installed to raise the im-
pounded spring water into the aqueduct.
The Ballarat Water Commission and the Lal Lal
Water Works Company appear to have found them-
selves somewhat at cross purposes, owing to the
difference of opinion existing between them as to the
right of the Commission to cut off the flow of water
from Harry Beale's Swamp. The formation of the
reservoir at the Swamp has diverted the main
source of supply to the Lal Lal Creek, and the
Water Works Company complain of being almost
entirely deprived of water for the supply of the
miners at Dolly's Creek and elsewhere. How the
conflicting interests of the two bodies are to be
treated is of course a matter for lawyers to deter-
mine, and we presume that the Water Works
Company will endeavor to ascertain what the law
has to say in the premises. Indeed, we understand
that counsel's opinion is now being obtained by the
Water Works Company.
The plight of this river and the recognition of the agents of its demise have been known for well over a hundred years. it is sobering to think how easy repeating those mistakes appear to have been.
In 1847, just on 170 years ago, William Swan Urquhart was tasked with surveying the source of the Moorabool River. This year while scouting locations for the upcoming film a couple of us got a chance to retrace his steps.
This is a closed catchment controlled by Central Highlands Water so permission was sought and kindly granted after undertakings about appropriate safety gear.
The headwaters lie in a small stretch of remnant forest east of the township of Mollongghip and feed into the Moorabool Reservoir. On this particular day a westerly breeze saw the comforting sight of Bunjil soaring in the uplift off the forest edge, an appropriate auspice for our trek.
There was a flat and even access track on the southern side which for the most part ran along side the boundary fence.
Large remnant trees including swamp gums along with many bird calls gave us some sense of what the landscape would have been like during Urquhart's visit. Now the huge irrigation frames dominate the view either side of this thin tract of forest, however there is no denying that some quite high natural values are contained within it.
Off the track and closer in toward the the river itself there was sword grass, ferns, and lots of moss covered trunk and branches. In places the undergrowth was too thick to access the river proper but the sound of trickling water was ever present.
A small spring soak about two thirds of the way in had us thinking we had arrived but it proved to be an offshoot. We pressed on initially missing the site until we doubled back. Even then it took a little while to confirm the location as the growth in and along the river was quite enveloping.
It turns out the Moorabool River West Branch's headwaters are rather incongruously positioned, given all the magnificent remnant natural vegetation, under a stand of imported Californian redwoods of about 70 years of age. Water can be seen moving out from the foot of the basalt upon which they sit feeding a small swampy area about 40 meters across. After walking past mainly open farmland on one side we found this to be quite an enchanting site.
A couple of wallabies had greeted us before disappearing to leave the place all to ourselves. There were plenty of birds calls and several species of butterflies filled the air around us, one of which was not often seen in the wild according to a Museum Victoria source (thank you Marion). Water plants and yabby holes featured as well.
Being in the middle of the irrigation season it was understandable that the soak was mostly dried out when we were there. The SKM report on the impact groudwater harvesting has on the river is sobering. For every 1 ML extracted in this area .8 of a ML does not enter the river as base flows. Under natural conditions it is not hard to assume this river would rarely if ever stop flowing.
It was not difficult to find this place evocative especially knowing the challenges this river faces. It is the birthplace of a river that is asked to provide so much, often well beyond its capacity. It does serve to remind us what we are fighting for; a strengthen, more resilient river, capable of sustaining all the species that rely on it.
We made our way back along the northern bank, a round trip of nearly 8 kilometers. There are some blackberry and thistle infestations that will need attention but on the whole the area is in pretty good condition. A 30 year old plantation of Californian Redwoods is hopefully the last of the managed introduced species to be cultivated within this area. We trust that CHW will continue to look after this special place and seek to enhance its values where they can.
While there has been a lot of attention on the West Moorabool and the Lower Moorabool Rivers in recent years the East Moorabool River has tended to get a little ignored. It suffers greatly from over allocation of its water resources particularly due to the fact that a high proportion of its flows are channelled down to the Barwon Water's She Oaks Treatment Plant rather than having the run of the river as happens in the West Branch. But there are still some very beautiful spots to be found, particularly around the Bungal Forest and further north.
Access via the Crossing Track was not an option so entry was gained from the northern part of the park. Our visit this time was not only to do some more gorse removal but also to make our way to the confluence between the East Moorabool and Bungal Creeks.
After about a 5 km walk in off the ridge we were pleased to find Bungal Creek with a small flow. Some of the larger pools looked relatively healthy and the water was reasonably clear.
While there remains relatively high turbidity in many of the pools the water moving over the riffles seemed clearer.
The confluence was a little tricky to get to and is impacted by blackberries directly downstream. But it still proved to be a pretty spot.
Further upstream turbity becomes more of an issue in the East Moorabool but the are some really high value sections. While gorse infestation is evident it is still at a manageable level. There is some evidence of Park's Victoria spraying in the southern section but the eastern part of the park the weed is in isolated clumps out of easy reach.
We are planning a return soon to do another round of gorse removal and would welcome any volunteers who would like to visit what is a beautiful part of this remakable river and assist with its maintenance. Contact can be made through this site.
The East Moorabool River is deserving of renewed efforts in restoring flows. The evidence of gold mining operations some of which can be seen instream serve as a reminder of just how much this river has had to contend with. The scars within the landscape are healing and it is sobering to recognise that past impacts have probably allowed this section of the river to arrive to us as a welcomed forested refuge.
One of the lesser known features on the West Moorabool are the Granite Falls. Situated downstream of the Moorabool Falls below Salt Creek they are characterised by a curtain of cascades over a broad granite span. The right hand section facing upstream has water springing from fissures in the face. The area is badly infested with blackberry bushes but despite this the beauty of the site is quite evident.
On the 29th of December 2016 a group of us met at a site on the Moorabool below Meredith to view the annual movement of hundreds of juvenile short finned eels up the river. These creatures, barely 20cm long, are finishing their several thousand kilometer journey from the Coral Sea. The peak of the migration occurs between Christmas and New year.
This beautiful section of the river with its deep pools, tumbling falls and high cliffs made for a perfect place from which to observe this remarkable event.
We were also keen to measure the depths at the site as the CCMA is currently undertaking a project identifying habitat pools and were interested in a comparison. With a rudimentary setup (boogie board, 2kg weight and 10mts of 10mm rope) we took over 20 soundings in each of the two pools. The depth in both was impressive with the lower pool measuring and astounding 8.85 meters. At this time we believe it is the deepest natural section of the river.
Our thanks go to Peter and his family for allowing us to visit this amazing section of the Moorabool River.
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