2019 January – Trevallyn & Tolarno Stations (NSW) – Blue Green Algae, Taste & Odour

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Darling River crisis: the farms without safe drinking or washing water

Jan 24 2019

When blue-green algae blooms on the river, everyone is told not to touch it. But in drought, there may be no other water


On the nearly 900km of the Darling River from below the Bourke weir to just above Wentworth, farmers on remote properties are dealing with a water crisis that would usually only be experienced in third world countries.

While there is some water treatment in the small towns along the river, the farmers often have no choice but to ignore the warnings about using the river water.

“It’s just wrong,” says Gabie Le Lievre, a grazier whose property adjoins the Darling between Louth and Tilpa. “Yes, we are in a terrible drought, but this is about a basic human right. I just want clean water to bathe my children.”

For months there has been a red alert for for blue-green algae in the Lower Darling as the river ceased to flow and temperatures regularly topped 45C.

The river has stopped running last August and the remaining waterholes have turned an ugly bright green.

The river has become undrinkable, unswimmable and unsuitable for bathing.

The government warnings say that, when it reaches a red alert, contact should be avoided.

“Blue-green algae, or cyanobacteria, are the most ancient of all photosynthetic organisms,” the NSW Water website warns. “Some produce poisons harmful to humans and possibly fatal to domestic animals and fish – neurotoxins and liver toxins, and skin allergens.

But for families that live along the Lower Darling on properties, there is often little choice, as that is the sole source of water for their homesteads, apart from very limited rain water.

Some properties have bores that can be used for stock and most have rainwater tanks. But as the drought continues, even these are running out, leading properties to truck in water from nearby towns.

Chrissy Ashby is a fifth-generation grazier on the cattle property Trevallyn, 75km downstream from Tilpa, and above the Wilcannia weir. The property has 65km of river frontage to the Darling, but these days the mighty river is just a dried up riverbed with a few stagnant pools.

She grew up here, so she’s seen droughts before. But this time the river is so low that she and her husband, Bill, are battling to survive.

There have been a couple of environmental releases that have sent a trickle down the river, but it’s now just a series of stagnant green pools. Yet that is their main water supply.

“The water stinks,” says Chrissy. “Its just terrible. It smells like rotting plants.”

Since the algal bloom alerts, she been reduced to washing off in a bucket of precious rain water.

“When we go into town or anywhere with a shower, we grab the opportunity to wash our hair,” she says.

The social isolation is compounded as well. “We are reluctant to ask people to come and stay when they would have to shower and use water,” she said.

For stock, they are using a mobile submersible pump to extract water from the bottom of the pools to avoid the algae. The pool they are using is only knee-deep, about half a kilometre long and 30 metres wide. It’s drying up too.

Some properties have sunk bores, but with the Ashbys’ finances stretched and no certainty that drilling would find water during the drought, they are scrambling for other alternatives.

Tanks have been ordered from Broken Hill, so they can get a tanker of water delivered under the drought relief program. Bill has also bought a solar power system and new piping, so they can extract water at more remote pools down the river and pump it to the homestead.

Further down the river at Tolarno, between Menindee and Pooncarie, Lauren Blunden, the wife of the manager, is in a daily struggle to ensure her seven-month son, Will, does not come in contact with river water.

“It’s been difficult and stressful,” she said. “Even before the heat came, we have been struggling to cope with the lack of water.”

With a red algae alert at Tolarno, Blunden is taking no chances. She uses rain water for Will’s baths and to wash his clothes.

She and her husband are also showering under a camp shower that uses just a few litres of rain water. They have rigged up a submersible pump and a car battery to pump water from an esky that they fill manually.

But they have now reached the bottom of the rain water tank, and last week had to truck water in from Menindee.

“It’s bore water, so it’s not the greatest water. You can’t drink it, and it’s got a funny smell to it, and tastes awful, but it helps with washing and doing dishes,” she says.

They now go to another rainwater tank with large blue water bottles to get water for Will and for drinking. The house’s plumbing is connected to river water.

“It smells unbelievable. It smells like poo and rotten eggs. You can’t fill up the sink to wash dishes because it is just so terrible,” Blunden said.

“Normally we would bathe in this water, but it’s unbearable. It dries your skin our, makes you itchy and it can cause a lot of health issues.”

A neurotoxin, BMAA, has been found in rivers in NSW that have blue green algae blooms. Studies in America have linked BMAA to a three-fold higher incidence of motor neurone disease.

Blunden says there is basic testing for algae but not detailed testing of water quality. The advice is simply don’t use it or come in contact with it.

She puts their current predicament down the the decision by the NSW government to drain the lakes twice in the last four years.

“Its crazy, because when they are full we have seven years’ supply,” she said. “It’s not fair. We are basically in third world conditions with our water. And this is Australia.

“Everyday we think about leaving. This is our home and we love it so much, but is it worth it? What if Will gets sick?”