sampling point
Somer U/S Confluence

Description	U/S WELLOW BROOK
Sampling point ID	SW-A3240102
Type	Freshwater – Rivers
Status	open
Location	easting northing: 367649 154748 lat lon: 51.290934, -2.465312
Area	Wessex
Sub-Area	West Wessex
Summary	117 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.

26 determinands have been measured at this site

Action taken
Alky pH 4.5
Ammonia(N)
BOD ATU
Calcium - Ca
Cond @ 25C
Cu Filtered
Hardness
Hdnss Ca
Hdnss Mg
Magnesium-Mg
N Inorganic
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Potassium- K
Sld Sus@105C
Temp Water
Type of Flow
WethPresPrec
Zinc - as Zn
pH

Displaying the twenty most recent samples. You can see all 117 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 5 Jun 2023 to 8 Mar 2024

Notation	Determinand	Units	5 Jun 2023 13:10	4 Jul 2023 11:21	7 Aug 2023 14:20	20 Sep 2023 13:23	5 Oct 2023 13:25	7 Nov 2023 09:53	6 Dec 2023 09:48	10 Jan 2024 11:18	7 Feb 2024 12:57	8 Mar 2024 11:00
0061	pH		8.37	8.32	8.27	8.05	8.31	8.26	8.09	8.18	8.19	8.32
0076	Temperature of Water	°C	13	13.1	14.2	15.6	13.5	10.3	8	6.9	9.2	8.9
0077	Conductivity at 25 C	μs/cm	661	657	627	300	659	615	625	644	528	638
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	0.12	< 0.03	< 0.03	0.037	0.13	0.035	0.039
0116	Nitrogen, Total Oxidised as N	mg/l	7.2	6.2	4.9	3.4	5.5	4.2	4.4	5.2	4	5.1
0117	Nitrate as N	mg/l	7.18	6.19	4.88	3.37	5.49	4.18	4.38	5.16	3.98	5.08
0118	Nitrite as N	mg/l	0.021	0.0064	0.016	0.035	0.011	0.018	0.017	0.038	0.017	0.021
0119	Ammonia un-ionised as N	mg/l	< 0.00068	< 0.00069	< 0.00074	0.00329	< 0.00071	< 0.00056	0.00058	0.00189	0.0006	0.00066
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	280	280	280	110	280	280	280	280	240	280
0180	Orthophosphate, reactive as P	mg/l	0.085	0.097	0.09	0.11	0.084	0.073	0.094	0.081	0.12	0.074
9901	Oxygen, Dissolved, % Saturation	%	100.8	98	99.3	92.1	96.9	98	99.8	99.9	99.2	101
9924	Oxygen, Dissolved as O2	mg/l	10.6	10.3	10.2	9.14	10.1	11	11.8	12.1	11.4	11.7

Samples from 8 Aug 2022 to 11 May 2023

Notation	Determinand	Units	8 Aug 2022 12:46	12 Sep 2022 10:03	12 Oct 2022 13:42	18 Nov 2022 13:22	2 Dec 2022 11:01	25 Jan 2023 10:55	13 Feb 2023 10:24	7 Mar 2023 09:49	5 Apr 2023 09:52	11 May 2023 12:35
0061	pH		8.38	8.46	8.25	8.2	8.26	8.29	8.42	8.4	8.27	8.31
0076	Temperature of Water	°C	16.9	15.8	11.2	10.9	7.7	6.6	8.4	6.9	9	12.6
0077	Conductivity at 25 C	μs/cm	694	875	709	621	646	650	648	789	637	644
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03		< 0.03	< 0.03	0.05	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	8.2	10	10	5.6	5.4	6.5	6.1	< 0.2	5.2	5.4
0117	Nitrate as N	mg/l	8.19	9.99	9.99	5.59	5.39	6.47	6.08	0.146	5.19	5.38
0118	Nitrite as N	mg/l	0.0053	0.011	0.0053	0.0065	0.0059	0.029	0.023	0.054	0.012	0.022
0119	Ammonia un-ionised as N	mg/l	< 0.0009	< 0.00084		< 0.00058	< 0.00046	0.00071	< 0.00049	< 0.00044	< 0.00051	< 0.00066
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	270	260	260	260	270	280	270	260	280	270
0180	Orthophosphate, reactive as P	mg/l	0.12	0.12		0.095	0.076	0.061	0.07	0.064	0.064	0.093
9901	Oxygen, Dissolved, % Saturation	%	99.5	98.6	91.9	97	95.8	99.5	99.8	100.4	100	101.4
9924	Oxygen, Dissolved as O2	mg/l	9.61	9.75	10.1	10.7	11.4	12.2	11.7	12.2	11.5	10.8

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sampling point Somer U/S Confluence

Determinands

Sampling results

Samples from 5 Jun 2023 to 8 Mar 2024

Samples from 8 Aug 2022 to 11 May 2023

sampling point
Somer U/S Confluence