sampling point
Guileshill Brook Above Ockham Mill, Ockh

Description	GUILESHILL BROOK ABOVE OCKHAM MILL, OCKHAM
Sampling point ID	TH-PWER0231
Type	Freshwater – Unspecified
Status	open
Location	easting northing: 505657 157541 lat lon: 51.307185, -0.485616
Area	West Thames
Sub-Area	L&W South Wt
Summary	82 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 82 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 19 May 2016 to 22 Jul 2024

Notation	Determinand	Units	19 May 2016 16:14	3 Jun 2016 13:06	5 Aug 2016 10:56	30 Sep 2016 09:48	20 Oct 2016 12:34	9 Dec 2016 12:47	19 Jan 2017 12:28	6 Mar 2017 13:12	5 Jun 2024 15:46	22 Jul 2024 14:09
0061	pH		7.82	7.86	7.45	7.08	7.38	7.62	7.81	8.02	7.84	7.12
0076	Temperature of Water	°C	12.4	11.1	15.2	12.9	10.6	9.2	2.3	7.1	13.8	16.5
0077	Conductivity at 25 C	μs/cm	771	667	624	615	328	801	667	528	693	598
0085	BOD : 5 Day ATU	mg/l									< 1	< 3
0111	Ammoniacal Nitrogen as N	mg/l	0.041	0.066	0.043	0.066	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.052
0116	Nitrogen, Total Oxidised as N	mg/l	2.08	2.06	2.44	0.51	1.6	3.62	5.19	2.6	4.9	3.7
0117	Nitrate as N	mg/l	2.06	2.03	2.43	0.503	1.59	3.6	5.18	2.6	4.89	3.68
0118	Nitrite as N	mg/l	0.0164	0.0278	0.0103	0.0069	0.0123	0.0175	0.0077	0.0047	0.015	0.025
0119	Ammonia un-ionised as N	mg/l	0.00059	0.00095	0.00033	0.00018	< 0.00014	< 0.00022	< 0.0002	< 0.00044	< 0.0005	0.00021
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	212	173	118	52	53	168	171	137	240	75
0180	Orthophosphate, reactive as P	mg/l	0.099	0.101	0.118	0.028	0.013	0.05	0.081	0.064	0.064	0.059
9901	Oxygen, Dissolved, % Saturation	%	90	85.8	64.7	51	52.3	71.3	98.7	96.4	94.1	67.9
9924	Oxygen, Dissolved as O2	mg/l	9.59	9.42	6.48	5.37	5.81	8.19	13.5	11.7	9.72	6.61

Samples from 4 Jun 2015 to 12 Apr 2016

Notation	Determinand	Units	4 Jun 2015 13:20	22 Jul 2015 14:26	10 Aug 2015 11:22	17 Sep 2015 08:37	5 Oct 2015 09:23	2 Nov 2015 08:50	3 Dec 2015 07:59	8 Jan 2016 14:32	16 Feb 2016 09:52	12 Apr 2016 09:55
0061	pH		7.24	7.54	7.4	8.15	7.67	7.7	7.9	7.78	7.59	8.16
0076	Temperature of Water	°C	13	16	16.5	12.5	11.4	9.9	10.8	7.5	3.1	8.9
0077	Conductivity at 25 C	μs/cm	699	651	642	441	726	698	784	495	552	636
0111	Ammoniacal Nitrogen as N	mg/l	0.097	0.049	< 0.03	0.068	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	1.91	1.74	6.89	4	3.47	6.77	5.48	5.38	4.59	1.64
0117	Nitrate as N	mg/l	1.88	1.73	6.88	3.97	3.46	6.74	5.45	5.37	4.58	1.64
0118	Nitrite as N	mg/l	0.0278	0.007	0.0103	0.0252	0.0092	0.0316	0.0251	0.0117	0.0081	< 0.004
0119	Ammonia un-ionised as N	mg/l	0.00039	0.00049	< 0.00023	0.00149	< 0.00029	< 0.00027	< 0.00046	< 0.00028	< 0.00013	< 0.0005
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	85	55	78	101	91	165	205	144	114	182
0180	Orthophosphate, reactive as P	mg/l	0.046	0.024	0.102	0.16	0.024	0.059	0.1	0.127	0.028	0.03
9901	Oxygen, Dissolved, % Saturation	%	82.1	58.7	67.3	77.7	75.2	76.3	65.2	94.1	90.4	95.1
9924	Oxygen, Dissolved as O2	mg/l	8.63	5.78	6.56	8.26	8.2	8.62	7.21	11.3	12.1	11

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sampling point Guileshill Brook Above Ockham Mill, Ockh

Determinands

Sampling results

Samples from 19 May 2016 to 22 Jul 2024

Samples from 4 Jun 2015 to 12 Apr 2016

sampling point
Guileshill Brook Above Ockham Mill, Ockh