Observation #16054 15-03-2024 | H1: Site one (Hopkins River Bridge)

Estuary	Hopkins River Estuary
Site	Site one (Hopkins River Bridge)
Observation ID	#16054
Date and Time	Friday 15th March 2024 17:05pm
Approved	Approved

Assisted by Harriet

Very old pH strips used for pH samples, as pH metre sensor failed

Depth m		Temperature °C	Salinity ppt	D.O. mg/L	D.O. % sat	EC mS/cm
0.1m		21.00	20.10	6.97	86.5	32.16
	Previous	21.5	17.9	8.7	108.2	28.9
	Median	20.1	20.90	8.67	102.30	33.5
0.5m		20.90	20.10	6.85	85.8	32.17
	Previous	21.0	21.0	8.3	106.0	33.6
	Median	17.2	20.90	8.35	98.10	33.5
1.0m		20.90	20.10	6.81	85.1	32.19
	Previous	21.8	18.2	8.5	107.1	29.3
	Median	17.2	28.60	8.52	97.20	43.9
1.5m		20.90	20.20	6.81	85.3	32.23
	Previous	20.8	22.2	8.4	107.8	35.2
	Median	16.7	28.60	8.36	96.40	43.9
2.0m		20.80	20.20	6.81	85.3	32.27
	Previous	20.6	27.3	4.2	53.4	42.5
	Median	16.6	31.50	7.80	98.00	48.4
2.5m		20.90	20.20	6.78	85.1	32.29
	Previous	19.0	27.0	7.9	100.2	42.1
	Median	16.1	31.50	7.80	98.00	48.4
3.0m		20.80	20.30	6.60	82.3	32.37
	Previous	18.9	33.0	0.2	2.8	50.2
	Median	16.9	32.20	7.72	93.30	49.2
3.5m		20.10	20.50	5.31	66.3	32.72
	Previous	17.2	32.1	7.8	97.4	49.1
	Median	16.0	32.20	7.72	93.30	49.1
4.0m		19.70	21.40	1.17	10.6	34.10
	Previous	18.4	28.2	0.3	3.8	43.6
	Median	13.9	32.90	5.81	69.60	50.1

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