sampling point
Elstow Bk.Trib.Ouse Harrowden B

Description	ELSTOW BK.TRIB.OUSE HARROWDEN B
Sampling point ID	AN-12M20
Type	Freshwater – Rivers
Status	open
Location	easting northing: 506720 247255 lat lon: 52.113322, -0.442928
Area	Cambridgeshire And Bedfordshire
Sub-Area	Brampton Team Sub Area
Summary	52 samples taken between 2024 and 2013

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 52 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 22 Jul 2019 to 20 Jun 2024

Notation	Determinand	Units	22 Jul 2019 11:53	21 Aug 2019 09:26	10 Sep 2019 09:16	14 Oct 2019 12:42	11 Nov 2019 08:29	2 Dec 2019 10:02	9 Jan 2020 10:25	3 Feb 2020 13:56	4 Mar 2020 11:59	20 Jun 2024 12:38
0061	pH		8.07	7.78	7.82	8.05	7.95	7.79	7.97	8.2	8.5	8.28
0076	Temperature of Water	°C	20.4	15.5	12.4	12.1	6.9	3	9.1	7.7	5.8	15.4
0077	Conductivity at 25 C	μs/cm	2090	1759	815	788	1050	1060	1050	1019	945	1361
0085	BOD : 5 Day ATU	mg/l	1.1	8.6	1.8	1.6	1.24	1.4	1.2	1.3	< 1	1.7
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	0.031	< 0.03	< 0.03	0.18	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	< 0.2	< 0.2	< 0.2	9.8	18.8	19	17	16	16	5.9
0117	Nitrate as N	mg/l	< 0.196	< 0.196	< 0.196	9.73	18.7	18.9	16.9	16	16	5.81
0118	Nitrite as N	mg/l	< 0.004	< 0.004	< 0.004	0.068	0.0626	0.14	0.06	0.029	0.025	0.088
0119	Ammonia un-ionised as N	mg/l	< 0.00116	< 0.0005	0.00045	< 0.00064	< 0.00039	0.00121	< 0.00048	< 0.00046	< 0.0004	< 0.00081
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	82	93	150	130	161	190	180	210	210	160
0180	Orthophosphate, reactive as P	mg/l	0.02	0.019	0.024	0.026	0.037	0.08	0.049	0.046	0.027	< 0.01
9901	Oxygen, Dissolved, % Saturation	%	92.6	97.2	59.5	98.6	85.2	92.3	90.4	101.7	119.5	135.2
9924	Oxygen, Dissolved as O2	mg/l	8.33	9.67	6.34	10.6	10.4	12.4	10.4	12.1	14.9	13.5

Samples from 23 Sep 2016 to 11 Jun 2019

Notation	Determinand	Units	23 Sep 2016 07:47	13 Oct 2016 11:34	20 Oct 2016 07:53	1 Dec 2016 11:38	9 Jan 2017 15:09	17 Mar 2017 09:43	29 Mar 2017 11:23	12 Apr 2019 12:04	16 May 2019 07:43	11 Jun 2019 07:56
0061	pH		7.6	7.55	7.82	7.82	8.1	7.99	8.07	8.12	7.85	7.78
0076	Temperature of Water	°C	12.6	8.5	10.3	1.5	7.3	6.8	11.6	8.1	10.5	12.1
0077	Conductivity at 25 C	μs/cm	906	936	886	1067	1195	1159	1098	1190	1981	552
0085	BOD : 5 Day ATU	mg/l								26.3	3.36	< 2.75
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	0.058	0.05	0.084	0.057	0.048	< 0.03	0.077
0116	Nitrogen, Total Oxidised as N	mg/l	1.61	14.5	2.4	10.4	23.6	19	14.7	12.4	1.09	1.56
0117	Nitrate as N	mg/l	1.61	14.5	2.4	10.4	23.5	18.8	14.6	12.4	1.09	1.51
0118	Nitrite as N	mg/l	< 0.004	0.0264	< 0.004	0.0462	0.0519	0.174	0.0634	0.0312	< 0.004	0.0497
0119	Ammonia un-ionised as N	mg/l	< 0.00027	< 0.00018	< 0.00037	0.00038	0.00075	0.00118	0.00117	0.00076	< 0.0004	0.001
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	189	224	155	198	187	203	222	196	94	86
0180	Orthophosphate, reactive as P	mg/l	0.476	0.072	0.054	0.016	0.045	< 0.01	< 0.01	0.014	0.086	0.133
9901	Oxygen, Dissolved, % Saturation	%	64.5	67.7	70.8	92.5	101.4	114.9	113.2	123.6	87.7	79.2
9924	Oxygen, Dissolved as O2	mg/l	6.84	7.91	7.92	12.9	12.2	14	12.3	14.6	9.76	8.5

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sampling point Elstow Bk.Trib.Ouse Harrowden B

Determinands

Sampling results

Samples from 22 Jul 2019 to 20 Jun 2024

Samples from 23 Sep 2016 to 11 Jun 2019

sampling point
Elstow Bk.Trib.Ouse Harrowden B