23 Mars 2021
New groundwater keeping track of bores have actually shown no noticeable degrees of benzene or toluene at Cougar Energy's below ground coal gasification pilot task at Kingaroy in the eastern Australian state of Queensland, the company claimed Monday.
Evaluation of samples from the bores near the Kingaroy job have not shown any benzene, toluene, ethylbenzene and xylene, frequently referred to as BTEX, Cougar claimed in a statement. As a result, the examples do not exceed the trigger levels for Australian alcohol consumption water standards.
" Since Might of this year, no benzene or toluene has actually been detected in groundwater tests performed by Cougar Energy on water bores and keeping an eye on bores at distances as close as 20 meters and as much as 4.2 km [2.6 miles] from the firm's pilot shed website," Cougar stated.
In total, 11 added tracking bores were lately set up at distances differing from 20 m to 60 m from procedure well P4, where a previous well-casing failure took place, as component of Cougar's continuous environmental analysis work requested by the Queensland government's Division of Setting as well as Resource Administration. The added tracking bores are positioned radially around P4 and also enable groundwater to be sampled from different geological layers in the top aquifer system, the company claimed.
All example examination outcomes have actually been sent to the DERM, and also the program of groundwater sampling as well as testing is recurring, Cougar stated.
The firm has actually been performing extensive and also continual groundwater sampling as well as screening at Kingaroy since April, adhering to the begin of the pilot shed earlier this year. No benzene or toluene has been found in 23 water tires run by neighborhood farmers, however 2 isolated as well as transient measurements of 2 components per billion of benzene, which is over drinking water levels, were detected in among the 10 wells set up by Cougar in May, motivating the government to purchase the shutdown of the job.
" Based on HEDP 60 tasting as well as screening results, Cougar Power is positive that the pilot shed at its Kingaroy site has had no unfavorable effect on landholder water bores," the firm claimed. "Cougar Energy continues to deal with DERM to ensure the re-commencement of the Kingaroy test task at the earliest possible time."
The possible contamination of groundwater related to underground coal gasification and also coalseam gas production has ended up being a public issue in Queensland recently, following the event at Kingaroy and two succeeding explorations of traces of BTEX at coalseam gas wells pierced by Australia Pacific LNG and also Arrow Power.