sampling point
Hardwick Brook At Hardwick

Description	HARDWICK BROOK AT HARDWICK
Sampling point ID	TH-PTAR0047
Type	Freshwater – Rivers
Status	open
Location	easting northing: 480681 218783 lat lon: 51.861801, -0.829776
Area	West Thames
Sub-Area	L&W North Wt
Summary	107 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.

19 determinands have been measured at this site

Action taken
Alky pH 4.5
Ammonia(N)
BOD ATU
Chloride Ion
Cond @ 25C
N Oxidised
NH3 un-ion
NO FLOW/SAMP
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
SI-GQA
Temp Water
Type of Flow
pH
pH in-situ

Displaying the twenty most recent samples. You can see all 107 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 17 Jun 2015 to 29 Jul 2024

Notation	Determinand	Units	17 Jun 2015 09:31	12 Aug 2015 11:41	5 Nov 2015 11:10	23 Mar 2016 11:08	29 Jun 2016 10:45	22 Sep 2016 09:58	1 Dec 2016 13:13	16 Jan 2017 14:39	28 Jun 2024 13:38	29 Jul 2024 09:50
0061	pH		7.83		8.01	8.24	7.96	8.04	7.99	7.8	7.88	8
0076	Temperature of Water	°C	13.9		11.8	5.9	13.2	14.7	1.7	5.8	15.8	15.6
0077	Conductivity at 25 C	μs/cm	852		838	843	772	756	913	705	844	808
0085	BOD : 5 Day ATU	mg/l									1.1	< 1
0111	Ammoniacal Nitrogen as N	mg/l	0.114		< 0.03	< 0.03	0.038	< 0.03	< 0.03	0.031	0.065	0.042
0116	Nitrogen, Total Oxidised as N	mg/l	3.08		2.98	6.79	3.79	3.64	11.8	27.9	4.9	3.7
0117	Nitrate as N	mg/l	3.03		2.97	6.77	3.77	3.62	11.8	27.9	4.84	3.67
0118	Nitrite as N	mg/l	0.0541		0.0068	0.0193	0.0208	0.0216	0.0271	0.0282	0.057	0.029
0119	Ammonia un-ionised as N	mg/l	0.00188		< 0.00062	< 0.0004	0.0008	< 0.00077	< 0.00029	0.00026	0.00138	0.00115
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	251		256	259	281	221	234	124	280	270
0180	Orthophosphate, reactive as P	mg/l	1.04		0.969	0.275	0.339	1.01	0.388	0.131	0.15	0.22
7668	No flow /No sample			0
9901	Oxygen, Dissolved, % Saturation	%			74.8	82.2	81.8	62.6	90.1	92.6	66.3	80.3
9924	Oxygen, Dissolved as O2	mg/l			8.08	10.2	8.56	6.34	12.5	11.6	6.55	7.97

Samples from 5 Jul 2007 to 17 Feb 2015

Notation	Determinand	Units	5 Jul 2007 09:35	21 Mar 2013 11:34	3 Jun 2013 09:46	13 Sep 2013 12:09	4 Dec 2013 12:06	14 Jan 2014 15:43	3 Apr 2014 14:21	4 Jul 2014 13:48	8 Oct 2014 11:40	17 Feb 2015 11:47
0061	pH		7.7	8.21	8.15	7.86	8.15	8.01	8.37	7.95	7.83	7.98
0076	Temperature of Water	°C	14.2	4	11.2	13.9	6.6	5.5	11.4	16.6	10.6	4.4
0077	Conductivity at 25 C	μs/cm		714	841	804	896	679	786	791	876	513
0085	BOD : 5 Day ATU	mg/l	2.4
0111	Ammoniacal Nitrogen as N	mg/l	0.083	0.038	0.039	< 0.03	< 0.03	0.095	< 0.03	0.055	< 0.03	0.051
0116	Nitrogen, Total Oxidised as N	mg/l	3.48	5.95	12.2	2.76	6.49	6.91	4.53	3.47	1.46	11.2
0117	Nitrate as N	mg/l	3.43	5.93	12.1	2.75	6.48	6.88	4.52	3.43	1.46	11.2
0118	Nitrite as N	mg/l	0.0531	0.0154	0.0575	0.0149	0.0105	0.0282	0.0141	0.0388	< 0.004	0.0225
0119	Ammonia un-ionised as N	mg/l	0.00104	0.00045	0.00078	< 0.00053	< 0.00043	0.00125	< 0.00061	0.00145	< 0.00039	0.00059
0162	Alkalinity to pH 4.5 as CaCO3	mg/l		245	244	245	253	168	260	256	249	131
0180	Orthophosphate, reactive as P	mg/l	0.271	0.165	0.217	0.99	0.339	0.165	0.171	0.611	1.24	0.138
3267	Type of flow as description		3
9901	Oxygen, Dissolved, % Saturation	%	84.8	95	87	71	91	83.1	103.3	65.2	69.9	89.2
9924	Oxygen, Dissolved as O2	mg/l	8.68	12.4	9.53	7.31	11.1	10.5	11.3	6.34	7.76	11.6

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sampling point Hardwick Brook At Hardwick

Determinands

Sampling results

Samples from 17 Jun 2015 to 29 Jul 2024

Samples from 5 Jul 2007 to 17 Feb 2015

sampling point
Hardwick Brook At Hardwick