sampling point
R.Lark Flat Farm Br.

Description	R.LARK FLAT FARM BR.
Sampling point ID	AN-37M02
Type	Freshwater – Rivers
Status	open
Location	easting northing: 587100 258200 lat lon: 52.190284, 0.735784
Area	Cambridgeshire And Bedfordshire
Sub-Area	Ely Team Sub Area
Summary	99 samples taken between 2024 and 2007

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.

15 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
BOD ATU
Cond @ 20C
Cond @ 25C
N Oxidised
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 99 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 16 Oct 2023 to 18 Jul 2024

Notation	Determinand	Units	16 Oct 2023 10:40	16 Nov 2023 10:45	7 Dec 2023 13:10	17 Jan 2024 12:24	19 Feb 2024 10:17	18 Mar 2024 10:16	15 Apr 2024 10:27	20 May 2024 10:12	18 Jun 2024 12:19	18 Jul 2024 13:46
0061	pH		8.31	8.25	8.15	8.23	8.02	8.23	8.27	7.74	8.13	8.29
0076	Temperature of Water	°C	7.1	8.1	6.3	3.4	8.6	9.1	8.9	12.4	13.7	16.5
0077	Conductivity at 25 C	μs/cm	792	713	731	769	619	734	728	769	786	773
0085	BOD : 5 Day ATU	mg/l					1.1	1	1.8	< 1	1.2	< 1
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	11	11	10	9.5	8.2	8.3	7.8	7.6	7.5	6.1
0117	Nitrate as N	mg/l	11	11	9.99	9.49	8.19	8.29	7.78	7.57	7.48	6.09
0118	Nitrite as N	mg/l	0.0082	0.007	0.0075	0.008	0.011	0.011	0.019	0.028	0.017	0.015
0119	Ammonia un-ionised as N	mg/l	< 0.00044	< 0.00048	< 0.00042	< 0.00034	< 0.00049	< 0.00051	< 0.0005	< 0.00036	< 0.00072	< 0.00088
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	270	290	290	300	260	300	290	300	300	300
0180	Orthophosphate, reactive as P	mg/l	0.12	0.037	0.035	0.043	0.051	0.044	0.036	0.094	0.1	0.12
9901	Oxygen, Dissolved, % Saturation	%	97.2	97.2	98.4	99.7	95.8	101.9	104.6	105.6	100.9	99.9
9924	Oxygen, Dissolved as O2	mg/l	11.8	11.5	12.1	13.3	11.2	11.7	12.1	11.3	10.4	9.73

Samples from 15 Dec 2021 to 14 Sep 2023

Notation	Determinand	Units	15 Dec 2021 12:05	11 Jan 2022 11:13	14 Feb 2022 12:54	8 Mar 2022 12:53	18 Apr 2023 14:26	22 May 2023 15:18	20 Jun 2023 11:54	17 Jul 2023 13:41	14 Aug 2023 13:11	14 Sep 2023 13:44
0061	pH		8.22	8.32	8.24	8.31	8.34	8.33	7.96	8.17	8.05	8.01
0076	Temperature of Water	°C	9.1	7.1	6.8	6.1	10.6	13.4	16.5	16.1	17	15.7
0077	Conductivity at 25 C	μs/cm	749	751	685	766	732	771	928	1034	993	1014
0085	BOD : 5 Day ATU	mg/l	< 1					1.3	> 19
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	0.069	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.032	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	11	11	10	11	13	11	10	11	12	12
0117	Nitrate as N	mg/l	11	11	9.98	11	13	11	9.52	11	12	12
0118	Nitrite as N	mg/l	0.0086	0.0069	0.024	0.0076	0.014	0.022	0.48	0.049	0.039	0.032
0119	Ammonia un-ionised as N	mg/l	< 0.00051	< 0.00044	0.001	< 0.00041	< 0.00057	< 0.0007	< 0.0008	< 0.00085	0.00097	< 0.00083
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	290	300	260	300	280	300	270	280	270	260
0180	Orthophosphate, reactive as P	mg/l	0.042	0.04	0.058	0.027	0.02	0.042	0.032	0.2	0.23	0.19
9901	Oxygen, Dissolved, % Saturation	%	98.3	99	97.6	103.7	110.6	110.9	80.2	99.5	91.7	93.3
9924	Oxygen, Dissolved as O2	mg/l	11.3	12	11.9	12.9	12.3	11.6	7.81	9.77	8.84	9.24

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sampling point R.Lark Flat Farm Br.

Determinands

Sampling results

Samples from 16 Oct 2023 to 18 Jul 2024

Samples from 15 Dec 2021 to 14 Sep 2023

sampling point
R.Lark Flat Farm Br.