sampling point
Alconbury Bk.Grindleys Br.

Description	ALCONBURY BK.GRINDLEYS BR.
Sampling point ID	AN-23M04
Type	Freshwater – Rivers
Status	closed
Location	easting northing: 519200 273100 lat lon: 52.343023, -0.251664
Area	Cambridgeshire And Bedfordshire
Sub-Area	Brampton Team Sub Area
Summary	88 samples taken between 2007 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.

21 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
BOD ATU
Chloride Ion
Cond @ 20C
Cond @ 25C
N Inorganic
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
O Diss% Satn
O Dissolved
Orthophospht
Oxygen Diss
Temp Water
Turbidity
TurbidityNTU
pH
pH Inst unit

Displaying the twenty most recent samples. You can see all 88 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 25 Jul 2006 to 25 Apr 2007

Notation	Determinand	Units	25 Jul 2006 13:15	5 Sep 2006 12:20	29 Sep 2006 10:25	31 Oct 2006 10:15	20 Nov 2006 11:15	13 Dec 2006 09:40	25 Jan 2007 14:15	28 Feb 2007 15:10	26 Mar 2007 16:04	25 Apr 2007 15:45
0061	pH		7.63	7.59	7.54	7.86	7.98	8.14	8.16	8.27	8.57	8.21
0062	Conductivity at 20 C	μs/cm	867	1010	814	944	857	795	921
0076	Temperature of Water	°C	20.02	17.93	16.11	13.12	8.12	7.54	3.66	8.35	10.66	16.43
0077	Conductivity at 25 C	μs/cm								828	1090	1070
0085	BOD : 5 Day ATU	mg/l	< 1	< 1	1	< 1	1.4	< 1	1.6	1.3	3.4	3.5
0111	Ammoniacal Nitrogen as N	mg/l	0.295	0.085	0.102	0.05	0.055	0.058	0.075	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	3.36	4.79	4.78	16.7	17.2	18.4	17.7	9.59	11.1	9.93
0117	Nitrate as N	mg/l	3.17	4.69	4.7	16.6	17.1	18.4	17.7	9.58	11	9.82
0118	Nitrite as N	mg/l	0.187	0.0989	0.0842	0.0722	0.0637	0.0432	0.0434	0.0113	0.0844	0.115
0119	Ammonia un-ionised as N	mg/l	0.00486	0.0011	0.00103	0.00084	0.00084	0.00088	0.00086	< 0.00048	< 0.00057	< 0.00087
0172	Chloride	mg/l	93.5	132	97.9	66	70.1	44.7	58.2	34	95.9	101
0180	Orthophosphate, reactive as P	mg/l	1.18	1.85	2.08	0.629	0.346	0.131	0.238	0.091	0.53	1.94
6396	Turbidity	ntu	2.4	2.7	3.5	2.6	8.7	29.7	7.6	64.6	3.5	3.8
9901	Oxygen, Dissolved, % Saturation	%	40.2	39.2	27.3	53.7	23.3	87	94.1	103.1	145.6	131.1
9924	Oxygen, Dissolved as O2	mg/l	3.64	3.7	2.68	5.63	2.75	10.4	12.4	12.1	16.1	12.8

Samples from 26 Sep 2005 to 6 Jul 2006

Notation	Determinand	Units	26 Sep 2005 10:50	24 Oct 2005 11:00	30 Nov 2005 14:15	13 Dec 2005 10:40	30 Jan 2006 11:10	16 Feb 2006 11:25	17 Mar 2006 11:50	27 Apr 2006 11:45	1 Jun 2006 16:10	6 Jul 2006 14:05
0061	pH		7.39	7.74	7.71	7.55	7.81	8.14	8.39	7.9	8.11	7.52
0062	Conductivity at 20 C	μs/cm	873	644	1220	1050	1250	776	962	1020	903	1280
0068	Turbidity	ftu	3.8
0076	Temperature of Water	°C	13.39	12.6	2.51	4.8	2.89	6.28	3.57	12.93	12.28	19.14
0085	BOD : 5 Day ATU	mg/l	< 1	1.36	1.41	< 1	1.46	1.85	1.6	1.2	1.3	1.4
0111	Ammoniacal Nitrogen as N	mg/l	0.075	0.051	0.546	0.153	0.27	0.043	< 0.03	0.033	0.031	0.179
0116	Nitrogen, Total Oxidised as N	mg/l	6.01	2.81	10.4	12.1	13.2	11.5	11.1	8.17	8.27	14.8
0117	Nitrate as N	mg/l	5.95	2.78	10.2	11.9	13.1	11.5	11.1	8.12	8.24	14.4
0118	Nitrite as N	mg/l	0.0629	0.0263	0.216	0.171	0.0701	0.0409	0.0224	0.0505	0.0346	0.45
0119	Ammonia un-ionised as N	mg/l	0.00044	0.00062	0.00296	0.00068	0.00189	0.0006	< 0.00034	0.0006	0.00067	0.00215
0172	Chloride	mg/l	119	97	165	118	164	52.2	72.1	114	66	188
0180	Orthophosphate, reactive as P	mg/l	1.84	0.735	1.85	1.19	1.1	0.237	0.28	1.2	0.541	4.42
6396	Turbidity	ntu		8.6	3.7	3.6	3.6	24.1	2.7	2	2.7	1.7
9901	Oxygen, Dissolved, % Saturation	%	41.2	69.3	63	68.1	76.6	95.2	85.9	76.3	101	37.5
9924	Oxygen, Dissolved as O2	mg/l	4.29	7.34	8.56	8.72	10.3	11.7	11.4	8.02	10.8	3.45

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sampling point Alconbury Bk.Grindleys Br.

Determinands

Sampling results

Samples from 25 Jul 2006 to 25 Apr 2007

Samples from 26 Sep 2005 to 6 Jul 2006

sampling point
Alconbury Bk.Grindleys Br.