The Weekly Advertiser Horsham

Water a must for quality of life

- By Dean Lawson

In the mid 1970s rained. In the Wimmera, for lengthy periods of time, rivers, creeks and channels ran consistent­ly, lakes, reservoirs and dams were full to overflowin­g and cropping across large areas of land became impossible.

There was so much water there was a community project called ‘Operation Long Hop’ to rescue kangaroos stranded by floodwater on Lake Albacutya.

A group of teachers also canoed the Wimmera River all the way from south of Horsham to well beyond the terminal lakes.

The circumstan­ces, which had existed periodical­ly in previous years and in some cases helped establish settlement­s, left a legacy spanning decades.

When it came to water for sport, recreation and lifestyle, a generation growing up in the Wimmera-mallee experience­d times of plenty.

How these times have changed. We now rely on a massive pipeline to guarantee water supply across a vast region and must carefully manage how we divvy up this ever-diminishin­g resource.

Experience­s from an overflow of water assets from yesteryear still burn brightly it rained… and in the memories of many who yearn for a return for ‘the good old days’.

They know just how big a deal lakes and rivers are to communitie­s when full of water and a perennial appeal for more recreation­al or environmen­tal water allocation­s is far from surprising.

Advocates pushing for more recreation water in Horsham district lakes are probably right in pointing out a need for greater water-sharing scrutinisa­tion.

It is an area, particular­ly in our part of the world, that demands constant analysis.

There is much and many risks to consider. If, for example, more water suddenly becomes available for lakes such as Green, Toolondo or even Natimuk, how do we preserve the asset for community use?

While we’ve come to accept evaporatio­n is the great enemy of many of our popular recreation lakes, a harder pill to swallow is to finally get water for a lake and then see its use limited due to blue-green algae blooms.

Blue-green algae, a natural part of our environmen­t but heavily influenced by landscape management, represents one of the biggest challenges in a recreation­water puzzle during dry periods.

What’s the point of fighting hard for water for a lake, only to be unable to use the lake because of a toxic bloom?

As we work our way forward in dealing with a changing climate and a finite water resource, finding a way to effectivel­y work with nature to manage blue-green algae and other threats will become a greater and more important area of research.

A series of wet years would probably resolve many issues for the short term and breathe new life into a parched landscape.

But when and will these wet years return?

Socio-economic studies have shown that water for recreation and the environmen­t is worth millions of dollars to Wimmera and southern Mallee communitie­s.

Whether it be reshufflin­g the deck in watershari­ng arrangemen­ts, exploring ways to mitigate blue-green algae outbreaks or something else – we must try to get the equation right.

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