sampling point
Lt.Ouse R. U/S Crackthorn Br. Stw

Description	LT.OUSE R. U/S CRACKTHORN BR. STW
Sampling point ID	AN-42M26
Type	Freshwater – Rivers
Status	open
Location	easting northing: 603379 277840 lat lon: 52.360856, 0.985437
Area	Cambridgeshire And Bedfordshire
Sub-Area	Ely Team Sub Area
Summary	56 samples taken between 2024 and 2014

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.

17 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
BOD ATU
Cond @ 25C
Cypermeth ID
Cypermethrin
N Oxidised
NATGRIDREF
NH3 un-ion
NO FLOW/SAMP
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Temp Water
pH

Displaying the twenty most recent samples. You can see all 56 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 4 Feb 2020 to 25 Jul 2024

Notation	Determinand	Units	4 Feb 2020 10:23	17 Mar 2020 08:57	27 Oct 2020 12:18	25 Nov 2020 09:54	4 Dec 2020 11:23	19 Feb 2021 13:36	16 Mar 2021 13:13	23 Apr 2021 13:59	28 Apr 2021 12:08	25 Jul 2024 13:42
0061	pH		7.96	7.64	7.6	7.73	7.99	7.62	7.57			7.62
0073	Cypermethrin	μg/l								< 1.0e-05	< 1.0e-05
0076	Temperature of Water	°C	6.4	7.8	10	9.2	6	7.2	9.6			15.4
0077	Conductivity at 25 C	μs/cm	955	930	801	950	604	837	870			901
0085	BOD : 5 Day ATU	mg/l	< 1	1.3	< 3	< 1	4	1.3	1.8
0111	Ammoniacal Nitrogen as N	mg/l	0.058	< 0.03	0.038	0.082	0.17	0.079	< 0.03			< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	9.7	10	8.5	9.8	16	9.9	9			9.5
0117	Nitrate as N	mg/l	9.67	9.97	8.41	9.71	16	9.86	8.98			9.46
0118	Nitrite as N	mg/l	0.034	0.034	0.094	0.09	0.043	0.037	0.017			0.044
0119	Ammonia un-ionised as N	mg/l	0.00074	< 0.00021	0.00028	0.00076	0.00226	0.00049	< 0.0002			< 0.00034
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	260	270	230	270	160	260	260			280
0180	Orthophosphate, reactive as P	mg/l	0.061	0.057	0.093	0.11	0.13	0.062	0.026			0.16
5446	Cypermethrin Identification	text								1	1
9901	Oxygen, Dissolved, % Saturation	%	85.9	89.7	73.2	75.7	84.5	87.4	92.2			81.6
9924	Oxygen, Dissolved as O2	mg/l	10.6	10.7	8.25	8.69	10.5	10.5	10.5			8.14

Samples from 29 Nov 2018 to 6 Jan 2020

Notation	Determinand	Units	29 Nov 2018 10:24	14 Dec 2018 11:56	18 Jan 2019 10:38	15 Feb 2019 11:26	12 Mar 2019 12:35	24 Jul 2019 12:54	12 Nov 2019 12:09	2 Dec 2019 13:37	10 Dec 2019 08:53	6 Jan 2020 11:06
0061	pH		7.67	7.72	7.84	7.74	7.78	7.5	7.94	7.84	8.03	7.84
0076	Temperature of Water	°C	10.4	6.1	3.9	5.3	8.2	19.2	6.4	6	5.2	7.2
0077	Conductivity at 25 C	μs/cm	978	978	985	1004	978	932	1030	1070	1030	935
0085	BOD : 5 Day ATU	mg/l						1.2	< 1	< 1	< 1	< 1
0111	Ammoniacal Nitrogen as N	mg/l	0.062	0.071	0.079	0.083	0.057	0.043	< 0.03	0.14	0.1	0.098
0116	Nitrogen, Total Oxidised as N	mg/l	10.7	10.4	10.1	10.2	10.8	6.7	10.4	11	13	14
0117	Nitrate as N	mg/l	10.6	10.3	10	10.2	10.8	6.62	10.4	10.9	12.9	13.9
0118	Nitrite as N	mg/l	0.125	0.082	0.0569	0.0495	0.0412	0.079	0.0369	0.072	0.056	0.059
0119	Ammonia un-ionised as N	mg/l	0.00055	0.00051	0.00064	0.00059	0.00055	0.0005	< 0.00037	0.00132	0.00128	0.00101
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	269	298	274	278	278	280	279	270	240	240
0180	Orthophosphate, reactive as P	mg/l	0.207	0.18	0.09	0.098	0.082	0.25	0.229	0.14	0.12	0.069
9901	Oxygen, Dissolved, % Saturation	%	55.2	66.8	71.1	82.6	84.6	49	72	74.6	76.8	83.2
9924	Oxygen, Dissolved as O2	mg/l	6.16	8.28	9.33	10.5	9.95	4.52	8.86	9.27	9.75	10

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sampling point Lt.Ouse R. U/S Crackthorn Br. Stw

Determinands

Sampling results

Samples from 4 Feb 2020 to 25 Jul 2024

Samples from 29 Nov 2018 to 6 Jan 2020

sampling point
Lt.Ouse R. U/S Crackthorn Br. Stw