Caboolture Region Water Quality Study - Moreton Bay Regional ...

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Burpengary Creek 5.2 Burpengary Creek All sites in Burpengary Creek had poor water quality rating (Figure 9, Table 7). All sites had poor condition for dissolved oxygen, particularly sites adjacent to and downstream from the town of Burpengary (see medians, Table 28). All sites also had high concentrations of total phosphorous, and downstream sites had high concentrations of ammonia. Oxidised nitrogen concentrations (medians) have improved in recent years at most of the sites in Burpengary Creek (Table 9, Table 23). However, phosphorus ratings have deteriorated at two sites (BUR-3 and BUR-5). Figure 9. Final water quality assessments for the Burpengary Creek for the year 2000-2001. These ratings represent assessments based on water quality data for the period October 2000 to September 2001. The dots indicate the latest water quality assessment in comparison to the Queensland Water Quality Guidelines (green = good, yellow = moderate, red = poor, grey = insufficient data or median was detection limit which was greater than the guidelines). Faecal coliform concentrations were good at most sites, and moderate at two sites (BUR-5 and BUR- 1). These sites are at the margins of the residential area and may be influenced by stormwater run-off from rural areas (Table 8). The condition of fish populations ranged from degraded to sub-reference, with the best sites located upstream of Burpengary. Two sites above and one adjacent to the town had fish populations that were in either a moderate or degraded condition (Appendix F, Langdon, 2001). These sites also have poor to moderate aquatic habitats (SoR, 2001). Aquatic vegetation and riparian vegetation also received very poor and moderate ratings respectively along the creek (SoR 2001, ANA, 2001) 21
Burpengary Creek Table 8. Water quality assessments for the Caboolture River Region, 2001. These ratings represent assessments based on water quality data for the period October 2000 to September 2001. The dots indicate the latest water quality assessment in comparison to the Queensland Water Quality Guidelines (green= good, yellow= moderate, red= poor, grey= insufficient data or median was detection limit which was greater than the guidelines). The arrows indicate trends in median concentrations over the last 3 years. The colour of the arrow indicates whether the water quality has improved (green) or deteriorated (red), and the direction of the arrow shows whether the median increased (up) or decreased (down). Double-ended arrows (black) indicate variable trends. Site Water Type Stream Source pH Conductivity Dissolved Oxygen Turbidity Secchi Depth Oxidised Nitrogen Ammonia Total Nitrogen Total Phosphorous Chlorophyll a Organic N FRP FINAL BUR-1 ME Burpengary Ck CSC BUR-2 LC Burpengary Ck CSC BUR-3 LC Burpengary Ck CSC BUR-4 LC Burpengary Ck CSC BUR-5 LC Burpengary Ck CSC BUR-6 LC Burpengary Ck CSC Table 9. Median faecal coliform concentrations (CFU/100ml) from all samples collected since 1999. Green: low counts (median < 150 CFU/100ml); Yellow: moderate counts (median 150 - 1000 CFU/100ml); Red: High counts (median >1000 CFU/100ml). Site CFU /100 ml BUR-1 700 BUR-2 62 BUR-3 150 BUR-4 82 BUR-5 400 BUR-6 104 . 22
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Appendix E: Results of Depth Profil
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Appendix F: Map of Fish Community A
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Appendix H: Map of Land Use Zones F
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