sampling point
Westcote Brook At B4450

Description	WESTCOTE BROOK AT B4450
Sampling point ID	TH-PEVR0077
Type	Freshwater – Unspecified
Status	open
Location	easting northing: 425027 222156 lat lon: 51.897387, -1.637684
Area	West Thames
Sub-Area	L&W North Wt
Summary	74 samples taken between 2024 and 2010

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.

13 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
BOD ATU
Cond @ 25C
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Temp Water
pH

Displaying the twenty most recent samples. You can see all 74 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 16 Sep 2015 to 2 Aug 2024

Notation	Determinand	Units	16 Sep 2015 16:23	23 May 2019 12:11	8 Aug 2019 14:03	16 Oct 2019 11:40	20 Nov 2019 11:14	15 Jan 2020 11:57	12 Mar 2020 09:16	10 Jun 2024 11:45	2 Jul 2024 11:02	2 Aug 2024 09:51
0061	pH		7.9	8.25	8.09	7.89	8.11	7.96	8.2	8.43	8.03	7.96
0076	Temperature of Water	°C	12.8	13	15.7	12.2	6.9	7.5	5.9	11.7	13.1	16.6
0077	Conductivity at 25 C	μs/cm	672	544	525	457	512	355	503	561	566	483
0085	BOD : 5 Day ATU	mg/l								< 1	< 1	2.3
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	3.77	2.89	3.2	4.7	5.35	3	3.7	4.6	3.7	2.3
0117	Nitrate as N	mg/l	3.76	2.87	3.19	4.69	5.34	3	3.69	4.59	3.69	2.29
0118	Nitrite as N	mg/l	0.0071	0.0152	0.0099	0.0083	0.0063	0.0045	0.006	0.0073	0.0074	0.0098
0119	Ammonia un-ionised as N	mg/l	< 0.00054	< 0.00068	< 0.00083	< 0.0005	< 0.00044	< 0.00042	< 0.0004	< 0.00062	< 0.00069	< 0.00081
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	256	220	210	190	216	160	200	220	220	190
0180	Orthophosphate, reactive as P	mg/l	0.226	0.077	0.096	0.035	0.031	0.029	0.011	0.031	0.069	0.085
9901	Oxygen, Dissolved, % Saturation	%	76.2	97.4	87.8	91.6	98.8	94.5	93.4	98.6	93	92.4
9924	Oxygen, Dissolved as O2	mg/l	8.05	10.2	8.7	9.8	12	11.3	11.6	10.7	9.75	8.98

Samples from 13 Nov 2014 to 19 Aug 2015

Notation	Determinand	Units	13 Nov 2014 10:10	28 Nov 2014 10:18	15 Jan 2015 14:11	6 Feb 2015 12:38	10 Mar 2015 09:01	12 Jun 2015 11:06	26 Jun 2015 10:54	17 Jul 2015 11:32	31 Jul 2015 10:44	19 Aug 2015 11:06
0061	pH		8.02	7.94	7.86	8.31	8.15	7.81	7.87	7.69	7.54	7.35
0076	Temperature of Water	°C	10.1	9.4	6.2	2.2	5.6	13.3	14.4	15.5	11.9	13.7
0077	Conductivity at 25 C	μs/cm	500	498	323	548	537	586	595	643	590	658
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	0.05	0.048	0.06	0.073	0.053	< 0.03	0.037
0116	Nitrogen, Total Oxidised as N	mg/l	7.49	5.51	3.2	4.59	4.07	2.78	2.37	3.61	4.14	6.22
0117	Nitrate as N	mg/l	7.48	5.5	3.19	4.58	4.04	2.75	2.35	3.59	4.13	6.21
0118	Nitrite as N	mg/l	0.0149	0.0095	0.0058	0.0112	0.0319	0.0262	0.0226	0.0158	0.0089	0.0116
0119	Ammonia un-ionised as N	mg/l	< 0.00055	< 0.00046	< 0.0003	0.00051	0.00063	0.00091	0.00137	0.00072	< 0.00022	0.0002
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	171	179	117	207	206	213	234	245	218	234
0180	Orthophosphate, reactive as P	mg/l	0.026	0.035	0.035	0.048	0.041	0.105	0.139	0.179	0.169	0.168
9901	Oxygen, Dissolved, % Saturation	%	88	85.6	78.8	90.5	89.3	75.4	84.2	68.7	85	72
9924	Oxygen, Dissolved as O2	mg/l	9.89	9.78	9.75	12.4	11.2	7.87	8.58	6.84	9.16	7.45

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sampling point Westcote Brook At B4450

Determinands

Sampling results

Samples from 16 Sep 2015 to 2 Aug 2024

Samples from 13 Nov 2014 to 19 Aug 2015

sampling point
Westcote Brook At B4450