sampling point
Brighstone Strm

Description	BRIGHSTONE STREAM AT BRIGHSTONE MILL
Sampling point ID	SO-Y0004320
Type	Freshwater – Rivers
Status	open
Location	easting northing: 442400 82300 lat lon: 50.638854, -1.401762
Area	Solent And South Downs
Sub-Area	L&W West Ssd
Summary	147 samples taken between 2024 and 2000

Determinands identify a property which can be measured on a sample or the sampling environment, together with the units in which the result of that measurement will be expressed.

23 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
BOD ATU
COPA
Calcium - Ca
Chloride Ion
Cond @ 20C
Cond @ 25C
Copper - Cu
Cu Filtered
Hardness
Magnesium-Mg
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Temp Water
Zinc - as Zn
Zn- Filtered
pH

Displaying the twenty most recent samples. You can see all 147 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 25 Oct 2023 to 11 Jul 2024

Notation	Determinand	Units	25 Oct 2023 11:49	8 Nov 2023 10:40	14 Dec 2023 11:27	22 Jan 2024 10:59	15 Feb 2024 10:34	13 Mar 2024 11:06	16 Apr 2024 11:31	15 May 2024 10:27	14 Jun 2024 11:01	11 Jul 2024 11:15
0061	pH		7.66	8.02	8.42	7.8	7.57	8.16	8.08	8.39	8.4	8.33
0076	Temperature of Water	°C	12.9	11.6	8.9	9	10.7	10.9	10.9	13.6	13.7	15
0077	Conductivity at 25 C	μs/cm	287	626	740	637	567	646	635	626	624	607
0085	BOD : 5 Day ATU	mg/l					< 2	< 1	< 1	1.1	1.3	< 3
0111	Ammoniacal Nitrogen as N	mg/l	0.1	0.044	< 0.03	0.064	0.041	< 0.03	< 0.03	0.035	< 0.03	0.05
0116	Nitrogen, Total Oxidised as N	mg/l	4.8	4	4.7	4.4	3.5	4.5	4.8	4.7	4.9	4.7
0117	Nitrate as N	mg/l	4.78	3.93	4.68	4.38	3.49	4.49	4.79	4.68	4.88	4.67
0118	Nitrite as N	mg/l	0.024	0.068	0.017	0.024	0.015	0.012	0.01	0.022	0.022	0.027
0119	Ammonia un-ionised as N	mg/l	0.00104	0.0009	< 0.0005	0.00069	0.0003	< 0.00058	< 0.00058	0.00083	< 0.00072	0.00131
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	58	210	210	190	190	220	200	200	180	170
0180	Orthophosphate, reactive as P	mg/l	0.26	0.071	0.079	0.036	0.049	0.051	0.038	0.049	0.056	0.054
9901	Oxygen, Dissolved, % Saturation	%	96.6	100.6	104	100.4	100.1	100.5	101.7	100.3	100.6	98.1
9924	Oxygen, Dissolved as O2	mg/l	10.2	10.9	12	11.6	11.1	11.1	11.2	10.4	10.4	9.87

Samples from 11 May 2021 to 29 Sep 2023

Notation	Determinand	Units	11 May 2021 10:39	11 Jun 2021 10:13	7 Jul 2021 13:17	16 Aug 2021 13:33	20 Apr 2023 14:02	25 May 2023 11:24	23 Jun 2023 11:36	12 Jul 2023 12:12	17 Aug 2023 10:31	29 Sep 2023 11:44
0061	pH		8.24	8.15	8.57	8.33	8.7	8.56	8.45	8.41	8.4	8.49
0076	Temperature of Water	°C	13	14.4	15.2	15.7	12.6	13.8	16.7	16.1	16.2	15.1
0077	Conductivity at 25 C	μs/cm	599	586	713	602	649	748	651	761	612	743
0085	BOD : 5 Day ATU	mg/l							< 1
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	0.032	< 0.03	< 0.03	0.033	0.037	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	4.5	4.6	4.2	4.4	4.7	4.9	4.6	4.8	4.6	4.7
0117	Nitrate as N	mg/l	4.48	4.58	4.17	4.39	4.67	4.88	4.58	4.78	4.59	4.69
0118	Nitrite as N	mg/l	0.019	0.022	0.027	0.013	0.029	0.019	0.02	0.017	0.01	0.0069
0119	Ammonia un-ionised as N	mg/l	< 0.00068	< 0.00075	0.00085	< 0.00083	< 0.00066	0.00079	0.0011	< 0.00085	< 0.00086	< 0.00079
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	170	160	170	160	200	180	170	160	180	170
0180	Orthophosphate, reactive as P	mg/l	0.033	0.034	0.048	0.051	0.03	0.043	0.057	0.044	0.05	0.047
9901	Oxygen, Dissolved, % Saturation	%	98	97	95	100	101	99.6	97.6	97.9	98.3	97.6
9924	Oxygen, Dissolved as O2	mg/l	10.3	9.88	9.51	9.91	10.7	10.3	9.47	9.62	9.64	9.8

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sampling point Brighstone Strm

Determinands

Sampling results

Samples from 25 Oct 2023 to 11 Jul 2024

Samples from 11 May 2021 to 29 Sep 2023

sampling point
Brighstone Strm