sampling point
R.Lud River Head

Description	R.LUD RIVER HEAD
Sampling point ID	AN-LUDO2
Type	Freshwater – Rivers
Status	open
Location	easting northing: 534028 388169 lat lon: 53.373375, 0.013153
Area	Lincolnshire And Northamptonshire
Sub-Area	North & South Team Sub Area
Summary	35 samples taken between 2024 and 2020

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

Samples from 20 Nov 2023 to 19 Aug 2024

Notation	Determinand	Units	20 Nov 2023 07:55	5 Dec 2023 12:44	15 Jan 2024 08:34	19 Feb 2024 08:25	20 Mar 2024 07:34	15 Apr 2024 07:40	14 May 2024 07:25	20 Jun 2024 09:56	22 Jul 2024 11:45	19 Aug 2024 07:30
0061	pH		8.18	8.08	7.96	7.98	8.11	7.96	7.92	8.12	7.95	8.16
0076	Temperature of Water	°C	9.1	8.3	5.9	9.1	10.2	9.2	11.7	12.3	13.9	11.7
0077	Conductivity at 25 C	μs/cm	660	610	679	661	718	687	675	665	669	661
0085	BOD : 5 Day ATU	mg/l				1.1	1.1	1.2	1.2	1.3	< 3	< 3
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	9.4	13	10	12	11	11	11	11	11
0117	Nitrate as N	mg/l	11	9.39	13	9.99	12	11	11	11	11	11
0118	Nitrite as N	mg/l	0.0066	0.0068	< 0.004	0.0066	0.0047	0.0068	0.015	0.015	0.019	0.026
0119	Ammonia un-ionised as N	mg/l	< 0.00051	< 0.00048	< 0.00037	< 0.00049	< 0.00056	< 0.00047	< 0.00052	< 0.00065	< 0.00065	< 0.00062
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	210	200	210	230	220	220	220	220	220	220
0180	Orthophosphate, reactive as P	mg/l	0.029	0.055	0.026	0.044	0.024	0.016	0.023	0.022	0.031	0.036
9901	Oxygen, Dissolved, % Saturation	%	98.6	100.4	101.7	99.3	100.1	100.1	101.7	106.3	105.4	98.4
9924	Oxygen, Dissolved as O2	mg/l	11.4	11.8	12.7	11.4	11.2	11.5	11	11.4	10.9	10.7

Samples from 21 Oct 2021 to 16 Oct 2023

Notation	Determinand	Units	21 Oct 2021 14:45	4 Nov 2021 10:37	2 Dec 2021 09:54	18 Apr 2023 11:07	18 May 2023 10:42	19 Jun 2023 07:09	17 Jul 2023 08:10	10 Aug 2023 07:00	6 Sep 2023 11:08	16 Oct 2023 08:08
0061	pH		8.21	8.08	8.25	8.31	8.47	8.78	8.06	8.09	8.24	8.24
0076	Temperature of Water	°C	10.1	9.1	5.1	11.2	11.5	15.4	12.7	14	14.7	7.8
0077	Conductivity at 25 C	μs/cm	623	581	929	676	678	557	737	673	664	664
0085	BOD : 5 Day ATU	mg/l	< 3	< 3	< 3		1.3	> 7.7
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	0.038
0116	Nitrogen, Total Oxidised as N	mg/l	9.1	8.2	9.1	11	12	9.2	10	10	11	8.9
0117	Nitrate as N	mg/l	9.08	8.19	9.09	11	12	9.11	9.98	9.98	11	8.89
0118	Nitrite as N	mg/l	0.017	0.013	0.014	0.0098	0.012	0.095	0.022	0.022	0.017	0.012
0119	Ammonia un-ionised as N	mg/l	< 0.00055	< 0.00051	< 0.00038	< 0.0006	< 0.00061	< 0.00081	< 0.00067	< 0.00073	< 0.00077	0.00059
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	210	190	230	220	210	190	210	210	210	230
0180	Orthophosphate, reactive as P	mg/l	0.042	0.052	0.042	0.015	0.013	< 0.01	0.03	0.044	0.035	0.064
9901	Oxygen, Dissolved, % Saturation	%	97.9	99.1	98.6	107	112.3	91.3	106.1	95.1	103.6	98
9924	Oxygen, Dissolved as O2	mg/l	11	11.4	12.5	11.7	12.2	9.1	11.2	9.78	10.5	11.6

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sampling point R.Lud River Head

Determinands

Sampling results

Samples from 20 Nov 2023 to 19 Aug 2024

Samples from 21 Oct 2021 to 16 Oct 2023

sampling point
R.Lud River Head