First known case of CSG contaminating water in NSW

It’s been a big week on the coal seam gas front: the NSW parliamentary inquiry into the industry has come to an end (the public hearings are all over, now the committee must prepare a report for early 2012), a people’s blockade against AGL’s CSG exploration is ongoing in Gloucester, and notably, test results revealed water contamination in a river where Santos (formerly Eastern Star Gas) discharges CSG waste water from their project in the Pilliga forest.

Here is the media release from the environment groups who discovered the case of water contamination (emphasis my own):

Coal seam gas exploration by Santos in the Pilliga Forest near Narrabri is discharging polluted coal seam gas water into the Bohena Creek system which is part of the Murray-Darling Basin, according to independent test results released today by environment groups.

Despite being treated before discharge, the tests show water extracted from the coal seam during mining is responsible for elevated levels of ammonia, methane, carbon dioxide, lithium, cyanide, bromide and boron in the Bohena Creek.  Ammonia levels were found to be three times drinking water standards. 

“These water samples confirm that coal seam gas water, even after treatment, is of such poor quality that it will degrade the rivers and creeks of the Murray-Darling Basin,” said Carmel Flint, spokesperson for Friends of the Earth.

“High levels of ammonia, methane and carbon dioxide pose a major risk to aquatic life, particularly fish” she said.

Prue Bodsworth, spokesperson for The Wilderness Society is concerned by the results. “Coal seam gas mining will worsen river health at a time when we should be doing everything we can to improve it.

“This is another example of the coal seam gas industry running out of control without proper constraints to prevent environmental impacts.This water should not be discharged into pristine environments like the creek systems of the iconic Pilliga Forest” she said.

In its proposed Basin Plan, the Murray-Darling Basin Authority is planning to allow massive increases in groundwater extraction for miningwhilst at the same time providing a major loophole in the form of weak water quality targets which it describes as ‘aspirational’.

Ms Flint said, “Santos are not even required to obtain a licence to pollute before discharging this water into the creek – there are no adequate controls on pollution under NSW laws during exploration for coal seam gas.

“Furthermore, in its present form, the draft Murray-Darling Basin Plan will do nothing to protect our creeks and rivers from coal seam gas discharge water and its damaging impacts.

“One has to ask whether the weak ‘aspirational’ water quality targets in the draft Murray-Darling Basin Plan were designed to appease this powerful, dangerous mining industry” she said.

The tests were undertaken by an independent environmental consultant on behalf of the Northern Inland Council for the Environment, Friends of the Earth and The Wilderness Society. A sample from the Santos discharge point into Bohena Creek was compared with an upstream sample.

It was reported in the Sydney Morning Herald on December 9 as the first case of water contamination from CSG:

THE state’s first case of water contamination from coal seam gas drilling has been discovered in north-western NSW, according to independent tests.

High levels of ammonia, methane, carbon dioxide, lithium, cyanide, bromide and boron were found around a water discharge point near a Santos coal seam gas operation in the Pilliga forest, near Narrabri.

Santos responded quickly, shifting blame to farmers in the area. In a statement on Thursday December 8 they said:

Santos points out that discharged water is tested on a monthly basis and all recent results have met NSW requirements.

Santos is confident it is not in breach of its authority or having any adverse impact on water resources in the area.

The NSW Office of Water Namoi Water Quality Project report 2002 – 2007 shows that the total nitrate levels in the Namoi River are generally above the ANZECC Guidelines. The report notes the water quality in the Namoi River has been impacted largely as a result of the expansion of agriculture in the region, coinciding with detection of high levels of nutrient in the waterways.

But the a spokesperson for one of the environment groups involved in commissioning the water study hit-back saying:

“We are astonished that Santos are apparently trying to shift the blame to farmers for their own polluting activities” said Carmel Flint, spokesperson for Friends of the Earth.

“There is no farming along the Bohena Ck where the water was collected – it is located entirely in the Pilliga State Forest.

“The water was collected directly from the pipe that runs from the Santos water treatment works into the Bohena Ck.”

And later on December 9, the environment groups put out a statement saying that Santos’ own data revealed similar results proving ‘high levels of ammonia’ in water near its Pilliga CSG project:

It has been revealed today that gas company Santos has its own water sample results showing high levels of ammonia in coal seam gas water being discharged into Bohena Ck in the Pilliga Forest.

The water samples were provided recently by its predecessor, Eastern Star Gas, to the Senate Inquiry into Coal Seam Gas in the Murray-Darling Basin (click to download - see pp15-18). [...]

“[Santos'] predecessor Eastern Star Gas recorded levels of ammonia similar to that shown in our results.   Their test results from June and July 2011 for the same point at Bohena Ck show levels of 1.7mg/L and 1.3mg/L of ammonia, while our independent sampling results show levels of 1.56mg/L.

“Therefore, Santos’ own data shows that the water it is discharging into the Pilliga Forest is poor quality, with levels of ammonia that are up to three times safe drinking water standards. Santos should have admitted this yesterday and come clean with the community instead of playing games and trying to deflect blame to farmers.

Santos also claimed today to be “confident it is not… having any adverse impact on water resources in the area.”

“Levels of ammonia in the discharged water are fifty two times higher than water upstream – this is definitely an adverse impact,” said Ms Flint.

The environment groups (Friends of the Earth, Northern Inland Council for the Environment and The Wilderness Society) are calling on the state government to prevent any further discharge of water from CSG operations into the creek system in the Pilliga, and enforce pollution control regulation to prevent further adverse impact on water.