ABCDEFGHIJKLMNOPQRSTUVWXYZAAABACADAEAFAGAHAIAJAKALAMANAOAPAQARASATAUAVAWAXAY
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BHP Pond
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Date10/8/202410/10/202410/15/202410/17/202410/22/202410/29/202411/5/202411/7/202411/12/202411/14/202411/19/202411/21/202411/26/202412/10/202412/17/20241/7/20251/14/20251/21/20251/23/20251/28/20251/30/20252/4/20252/6/20252/18/20252/20/20252/23/20252/25/20254/8/2025
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Time9.00am9.30am9.00am8.40am9.00am9am8.45am8.40am8.57am8.50am8.51am9.00am9.00am8.45am9.03am9.38am9.25am10.02am9.17am9.44am1.18pm9.34am10.08am11.01am9.54am
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Dissolved Oxygen (mg/L)2.49.21.65.81.21.611.21.86.6261.43.91.52.99.8131.339.438.314.59N/AN/AN/AN/AN/A11.215.03
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Dissolved Oxygen (% Sat.)25%100%14%60%12%16%16%14%22%70%24%70%16%44%15%37%124%372%114.6108.557%N/AN/AN/AN/AN/A137.6166.7
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Water temp (C)20181717182021232221232325242927.3627.0123.825.1829.2326.4127.1527.4825.8624.4425.6425.8320.4
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pH6.5677777777676777.527.398.678.238.316.987.666.9298.98.249.187.32
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Turbidity (NTU)15/25152052020102510305>1005255498.31463.150.42.46.448.912.614.19.9135.9
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Available Phosphates (mg/L)0.25*15Potential phosphate presence0.250.250.250.510.140.120.180.130.190.07
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Conductivity (mS)0.380.380.370.380.410.260.320.30.240.290.280.280.050.280.30.4520.2210.3490.3680.3020.3760.3330.3460.2840.2670.3230.2730.341
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ObservationsAfter light rain over last days lots of organic debrisVery light rain last night and this morningVery dirty water. Thousands of macro-invertabrates in the surface level of water.Light rainfallVery hotHeavy rainblue green algea`
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Nitrite (mg/L)0.30.1N/A*
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Nitrate (mg/L)20000002.555550000000000000N/A*
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Ammonia (mg/L)0.1000.25444430.2510.50000.25000.250.250N/A*
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* NO CHEMICALS AVAILABLE FOR TESTING
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17
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* Further testing required
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20
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Date10/8/202410/10/202410/15/202410/17/202410/22/202410/29/202411/5/202411/7/202411/12/202411/14/202411/19/202411/21/202411/26/202412/10/202412/17/20241/7/20251/14/20251/21/20251/23/20251/28/20251/30/20252/4/20252/6/20252/18/20252/20/20252/23/20252/25/20254/8/2025
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Dissolved Oxygen (mg/L)
2.49.21.65.81.21.611.21.86.6261.43.91.52.99.8131.339.438.314.59N/AN/AN/AN/AN/A11.215.03
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Dissolved Oxygen (% Sat.)
25%100%14%60%12%16%16%14%22%70%24%70%16%44%15%37%124%372%114.6108.557%N/AN/AN/AN/AN/A137.6166.7
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25
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Date
Dissolved Oxygen (mg/L)
Dissolved Oxygen (% Sat.)
Notes:
27
10/8/20242.425
28
10/10/20249.2100
Dissolved oxygen in the BHP pond was in a very unhealthy range late last year, the healthy range should be (6-8mg/L or 80-120%)
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10/15/20241.614
With the presence of Blue green algae (cyanobacteria) in the water, it may be inferred that the bloom started late last year and was taking up all the available oxgeyn reserves in the water, and when the summer periods significantly warmed up the water the algal bloom may have exponentially grown, due to extreme heat and a surplus of nutrient availabilty. this growth can now possibly account for extreme oxygen oversaturation in the pond. this can be seen with the major spike in oxygen levels in the monthy of january
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10/17/20245.860
from the 4.2.25 to the 23.2.25 there was no data collected-hence the gap in data
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10/22/20241.212
another gap in data collection fromn 25.2.25 to 8.4.25
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10/29/20241.616
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11/5/2024116
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11/7/20241.214
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11/12/20241.822
36
11/14/20246.670
37
11/19/2024224
38
11/21/2024670
39
11/26/20241.416
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12/10/20243.944
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12/17/20241.515
42
1/7/20252.937
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1/14/20259.81124
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1/21/202531.33372
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1/23/20259.43114.6
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1/28/20258.31108.5
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1/30/20254.5957
48
2/4/202500
49
2/6/202500
50
2/18/202500
51
2/20/202500
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2/23/202500
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2/25/202511.2137.6
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4/8/202515.03166.7
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56
57
58
59
60
61
62
63
64
Water temp (C)
20181717182021232221232325242927.3627.0123.825.1829.2326.4127.1527.4825.8624.4425.6425.8320.4
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pH6.5677777777676777.527.398.678.238.316.987.666.9298.98.249.187.32
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67
68
Date
Water temp (C)
69
10/8/202420Notes:
70
10/10/202418
Water temp stays relatively consistent ranging from 17◦C -23◦C.
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10/15/202417
Over summer periods late Nov to mid Feb water temps rose to almost 30◦C , cooling back down to around 20◦C as autumn approaches
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10/17/202417
from the 4.2.25 to the 23.2.25 there was no data collected-hence the gap in data
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10/22/202418
another gap in data collection fromn 25.2.25 to 8.4.25
74
10/29/202420
75
11/5/202421
76
11/7/202423
77
11/12/202422
78
11/14/202421
79
11/19/202423
80
11/21/202423
81
11/26/202425
82
12/10/202424
83
12/17/202429
84
1/7/202527.36
85
1/14/202527.01
86
1/21/202523.8
87
1/23/202525.18
88
1/28/202529.23
89
1/30/202526.41
90
2/4/202527.15
91
2/6/202527.48
92
2/18/202525.86
93
2/20/202524.44
94
2/23/202525.64
95
2/25/202525.83
96
4/8/202520.4
97
98
99
DatepHNotes:
100
10/8/20246.5
pH of pond remains relatively neutral, until mid to late Jan, when the pH becomes more basic (alkaline) ranging between 8-9pH.