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Water Quality

 

BLUE GREEN ALGAE

Red Alert lifted for Wah Wah Outfall Channel supply

Results from water sampled 16/01/17 show that blue green algae (BGA) levels in the Wah Wah Outfall and Corynnia Channel systems may now be suitable for Stock and Domestic use. BGA monitoring results are an indication of BGA levels only, since BGA levels can change significantly over short periods of time, particularly when temperatures increase and water movement is minimal and customers are advised to obtain independent advice for the fitness of their water for its intended use.Please note, that regardless of the presence of blue green algae, water supplied is not fit for human consumption or for use in contact with humans.

Samples are collected weekly from monitoring points and results are updated on our website when they are received. During 'Red Alert' levels, MI endeavour to make operational changes to address BGA and all ongoing monitoring will inform operational decisions where necessary.

If a ‘Red Alert’ is detected at any of our monitoring points, customers downstream of this point will be formally notified via phone or SMS. Customers will also be notified when the alert is lifted. To assist this, we encourage all customers to register their mobile on MI’s ‘Quick Contacts List’. You can do this by choosing this option from the ‘Customers’ drop down list on the front page of our website

Customers are advised to contact Riverina Local Land Services Office for advice on options available to treat water suspected of containing algae.
LLS Hay 56 Lachlan Street, Hay NSW 2711 Ph 02 6990 1300 LLS
District Vet  Colin Peake – Ph 0428 382 023.

For general information about blue-green algae, the NSW Department of Primary Industries publish resources on their website(www.dpi.nsw.gov.au/agriculture/resources/water/quality/publications/blue-green-algae).

Please feel free to contact our office on (02) 6962 0200.  

  

EPA Licence

MI-arrow-yellow.gif Environmental Protection Licence No. 4651

MI-arrow-yellow.gif MI Pollution Incident Response Management Plan 2016

MI-arrow-yellow.gif MI Chemical Control Plan 2016

MI-arrow-yellow.gif Water Quality Test Results

MI-arrow-yellow.gif Blue green algae monitoring

Water samples are collected weekly at key points during the irrigation season.

Location Stock Alert  Recreational Alert Sample Date 
Wah Wah Main No Alert    Green  16/01/2017
Barren Box Intermediate Cell No Alert Amber  16/01/2017
Barren Box Active Cell No Alert Green  16/01/2017
Outfall Channel No Alert  Green  16/01/2017
Corynnia Channel - Cameron Rd No Alert  Amber  16/01/2017
Channel 18 - Cameron Rd No Alert  Green  16/01/2017
Channel 1 - Cameron Rd No Alert  Amber  16/01/2017
South Lake Wyangan Red  Red  Weekly
     

BGA monitoring sites 


Alert Level Descriptions
Red
These alert levels represent 'bloom' conditions. The 'blooms' should be considered to be toxic to humans and animals, and the water should not be used for potable water supply, stock watering, or for recreation. Algae signs will be erected at the site and affected customers will be notified.
Amber
Blue-green algae may be multiplying in numbers. The water should be considered as unsuitable for potable use. The water remains suitable for recreational use.
Blue-green algae are first detected in the water at low amounts, possibly signalling the early stages of the development of a bloom. At these concentrations, the blue-green algae do not pose a threat to recreational, stock or domestic use.

Green

Blue green algae are first detected in the water at low amounts, possibly signalling the early stages of the development of a bloom. At these concentrations, the blue green algae do not pose a threat to recreational, stock or domestic use.

 

 

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