Turbidity Watch Results: March - May 2001
Oxley Creek Catchment map showing turbidity watch locations.
Click on links in the map to see the results for each location.
Table of Turbidity Watch Results March -
May 2001
|
Location
|
Turbidity Level (NTU’s)
|
|
Strickland Tce Parklands, Oxley Creek, Sherwood
|
65
|
|
Sherwood Rd Bridge, Oxley Creek, Sherwood
|
41
|
|
Oxley Creek, 3.1km from mouth, Corinda
|
40
|
|
Oxley Creek, 7.0km from mouth, Cliveden Ave, Corinda
|
382
|
|
Oxley Creek, 9.2km from mouth, Kendall St, Oxley
|
335
|
|
Oxley Creek, 11.1km from mouth, Ipswich Rd Bridge, Oxley
|
344
|
|
Oxley Creek, 16.0km from mouth, Beatty Rd, Willawong
|
989
|
|
Oxley Creek, 21.1km from mouth, Brookbent Rd, Pallara
|
435
|
|
Oxley Creek, 28.9km from mouth, Forestdale
|
12
|
|
Creek that runs along beside Watson Rd Primary School, Watson
Rd, Acacia Ridge
|
56
|
|
Footbridge at Beaudesert Rd end of Kookaburra Park, Stable
Swamp Creek, Rocklea
|
17
|
|
Footbridge adjacent to Tramore St, Stable Swamp Creek, Rocklea
|
15
|
|
Road bridge on Marshall Rd/Service Rd, Stable Swamp Creek,
Rocklea
|
13
|
|
Gaddes Park, Gaddes Place, Stable Swamp Creek, Acacia Ridge
|
15
|
|
Gay St, Stable Swamp Creek, Acacia Ridge
|
10
|
|
Les Atkinson Park, Beenleigh Rd, Stable Swamp Creek, Sunnybank
Hills
|
15
|
|
Beryl Roberts Park, Stable Swamp Creek, Coopers Plains
|
15
|
|
Adjacent Flinders Esplanade, Tathra St, Parkinson
|
25
|
|
Large pool, near end Greenways Esplanade, Parkinson, "Wallum
Froglet Creek"
|
350
|
|
Glenfield Rd, Parkinson
|
20
|
|
Sheep Station Gully near railway line
|
<10
|
|
Sheep Station Gully tributary, just upstream of Algester
Rd, Algester
|
<10
|
|
Sheep Station Gully, upstream of Algester Rd, Algester
|
<10
|
So what do the results show?
The turbidity levels in Oxley Creek are extremely high in the section
from Oxley upstream to Forestdale. The highest reading was obtained
where Beatty Rd crosses the creek at Willawong/Acacia Ridge. This
section of the creek contains many sand extraction operations and
these may be contributing to the high levels of turbidity in this
section of the creek.
Generally the turbidity levels in the tributaries of Oxley Creek
are low. However levels in Blunder Creek were not monitored so this
needs further work. There is one area of concern at Parkinson in
a newly developed section of Ridgewood Heights Estate. This tributary
is known to contain a population of rare frogs. The high reading
may be an indication of the disturbance occurring during land clearing
and the building of housing.
Brisbane City Council has derived water quality objectives for
waterways in the Brisbane area. BCC has set the objective for turbidity
at 20 NTU. Using the results above, Oxley Creek does not reach this
objective.
Further information about water quality of Brisbane’s waterways
is contained in the publication "A City-wide Assessment of
water Quality in Brisbane’s Creeks, October 1999- April 2000",
Environmental Technical Report No. 39 by G. Webb, Waterways Scientific
Services, Environmental Protection Agency, Queensland Government.
If you wish to comment on Turbidity Watch please contact Oxley
Creek Catchment Association Inc on occa@flatrate.net.au
|
