CONDAMINE River fishers have more than just the winter chill to worry about this week,
A sewage overflow at the O'Leary St pump station last weekend has contaminated the surrounding water, with signs advising no fishing or swimming in the polluted area.
A Southern Downs Regional Council spokeswoman said the pump station attendant identified the spill on Monday.
"The pump was then repaired and recommenced pumping," she said.
"Water quality samples were collected at three points - upstream, downstream and at the point of release - and sent to the lab for analysis.
"The Department of Environment and Heritage Protection were notified on the morning of (Monday) May 23, via the pollution hotline in accordance with council procedure."
Two DEHP officers also visited the site on Monday afternoon to conduct an investigation, aided by two council officers.
The council spokeswoman said follow-up water quality samples were collected and additional signs were installed advising of the polluted water the next day, and further tests would be done on Monday, May 30.
"No results of water quality testing have yet been received as this process takes five working days from the date of receipt of the samples, but the same parameters are tested in each test," she said.
"The incident has been exacerbated by the low water level and the absence of flow in the river at this location, as it is held between two weirs.
"The DEHP has not requested that council carry out any additional actions or undertake notifications at this stage, other than to ensure that advisory signage was installed, but council will continue to respond to any further requirements or directions from the DEHP."
The O'Leary pump station is scheduled for replacement, with part of the existing pump station scheduled for demolition next week.
Council workers are also planning for a new station, scheduled for completion at the end of June.