Balcombe Creek Estuary

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25 results found (Displaying 1 - 10)
ID Date Status Details
#11192 21 Jan 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.5 7.5 17.90 0.40 7.18 68.1 0.73
1.5m 13.5 6.9 18.90 9.40 2.69 30.2 15.96
#11195 18 Feb 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 8.5 19.60 12.10 2.54 28.0 20.20
1.5m 10.0 8.2 22.10 33.20 1.58 21.9 50.50
#11204 26 Mar 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.1 19.50 0.90 8.79 87.9 1.82
2.0m 9.0 6.8 20.90 30.70 0.44 5.8 47.05
#11207 29 Apr 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.9 14.00 1.10 8.89 86.0 21.91
1.5m 9.0 7.4 17.70 30.70 1.94 24.3 47.09
#11219 28 May 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 27.0 7.7 12.50 0.40 8.14 76.9 0.86
1.5m 27.0 7.4 16.60 33.10 0.56 7.4 50.40
#11499 24 Sep 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 7.6 14.10 1.10 7.13 69.8 2.13
2.0m 15.0 7.5 14.90 30.30 4.36 51.9 46.65
#11590 22 Oct 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 8.3 14.20 0.80 5.72 56.8 1.61
1.5m 10.0 7.5 18.10 27.90 0.30 3.8 43.20
#12139 26 Nov 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 0.0 7.5 20.70 7.50 1.97 22.8 12.20
2.0m 0.0 7.5 22.00 30.40 0.43 5.9 46.70
#12181 28 Jan 2018 Approved Notes:

In the bottom 1 m of seawater at august St bridge hydrogen sulfide gas clearly detected. Indication of rotting vegetation, supported by very low and zero DO levels. This could indicate aftermath of high level nutrients (eg sewage spill), which needs to be investigated.

John Inchley rang Shire Health Officer, Peter O'Brien to inform him of data and he said they would investigate further (reported Mon, 29 Jan).

Jan Jones to investigate the use of drone to photograph estuary (and creek) with Balcombe Grammar.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.0 7.7 26.50 0.50 9.26 116.8 0.90
2.0m 20.0 6.9 23.40 29.60 0.00 0.0 45.62
#12178 25 Feb 2018 Approved Notes:

Very low dissolved oxygen.

High turbidity in bottom sample.

Hydrogen sulfide smell in bottom sample.

No stratification (sea water). Lack of stratification possibly due to the creek being very low (not flowing) for 2 months due to lack of rain. High tides and very strong westerlies (sometimes gale force) have probably pushed the seawater back up the estuary. The estuary flowing in reverse with resultant seawater.

All samples of nearly pure sea water.

Lower than usual pH samples. pH meter checked against standard afterwards.

Met with Peter O'Brien on Monday 19th at Augusta bridge site tot discuss last months data. He as going to investigate storm water drains, including current citation oval damage to explain high B.O.D. and EColi count.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.0 5.9 22.60 33.10 1.20 15.5 50.40
2.0m 20.0 6.9 21.10 34.40 0.80 1.1 52.20
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