sampling point
Bucknall Catchwater

Description	BUCKNALL CATCHWATER DRAIN
Sampling point ID	AN-BCKNLLCW
Type	Freshwater – Rivers
Status	open
Location	easting northing: 517080 366436 lat lon: 53.182138, -0.249454
Area	Lincolnshire And Northamptonshire
Sub-Area	North & South Team Sub Area
Summary	116 samples taken between 2024 and 2010

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.

14 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
BOD ATU
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 116 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 11 Aug 2023 to 1 Jul 2024

Notation	Determinand	Units	11 Aug 2023 11:26	6 Sep 2023 10:14	5 Oct 2023 12:20	8 Nov 2023 09:12	7 Dec 2023 12:15	10 Jan 2024 13:42	8 Feb 2024 10:28	4 Mar 2024 08:06	11 Jun 2024 13:46	1 Jul 2024 13:02
0061	pH		7.98	7.63	7.47	7.98	8.08	8.11	8.24	8.2	8.32	8
0076	Temperature of Water	°C	18.1	17.9	13.5	8.8	5.8	4.5	4.3	4.2	13.9	17
0077	Conductivity at 25 C	μs/cm	847	772	1016	810	819	780	831	744	684	761
0085	BOD : 5 Day ATU	mg/l	< 1	1.3	< 3	< 6	1.4	1.5	1.5	1.3
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	0.078	0.97	< 0.03	0.12	0.037	0.084	0.051	0.093	0.19
0116	Nitrogen, Total Oxidised as N	mg/l	11	1.2	0.9	15	10	11		9.6	6	3.2
0117	Nitrate as N	mg/l	10.9	1.14	0.817	14.9	9.96	11		9.58	5.9	3.01
0118	Nitrite as N	mg/l	0.068	0.062	0.083	0.053	0.043	0.019	0.031	0.019	0.1	0.19
0119	Ammonia un-ionised as N	mg/l	< 0.00094	0.0011	0.00686	< 0.00048	0.00161	0.00045	0.00101	0.00061	0.00226	0.00577
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	270	240	310	270	200	280	270	280	230	250
0180	Orthophosphate, reactive as P	mg/l	0.16	0.18	< 0.01	0.063	0.057	0.067	0.088	0.053	0.095	0.16
9901	Oxygen, Dissolved, % Saturation	%	77.2	78.2	40.7	85.8	92.8	98.5	95.1	96.6	132.1	97.5
9924	Oxygen, Dissolved as O2	mg/l	7.27	7.4	4.23	9.95	11.6	12.7	12.4	12.6	13.6	9.4

Samples from 17 Oct 2022 to 5 Jul 2023

Notation	Determinand	Units	17 Oct 2022 11:22	8 Nov 2022 08:14	8 Dec 2022 08:41	23 Jan 2023 10:47	10 Feb 2023 11:27	8 Mar 2023 11:48	20 Apr 2023 09:02	9 May 2023 11:09	13 Jun 2023 08:59	5 Jul 2023 10:14
0061	pH		7.77	8.05	8.27	8.38	8.31	8.46	8	7.86	8.02	8.27
0076	Temperature of Water	°C	11.3	10.2	3.4	1.5	2.8	3.3	8.9	14.2	19.1	15.8
0077	Conductivity at 25 C	μs/cm	769	880	896	873	914	932	822	656	717	724
0085	BOD : 5 Day ATU	mg/l							1.3	2.7	1.5	1.8
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	0.32	1.8	< 0.03	0.041	0.056	0.033
0116	Nitrogen, Total Oxidised as N	mg/l	< 0.2	19	24	17	16	14	12	6.5	2.3	< 0.2
0117	Nitrate as N	mg/l	< 0.196	18.9	24	17	15.9	13.7	12	6.43	2.23	< 0.196
0118	Nitrite as N	mg/l	< 0.004	0.054	0.017	0.023	0.064	0.31	0.026	0.071	0.069	< 0.004
0119	Ammonia un-ionised as N	mg/l	< 0.00036	< 0.00056	< 0.00034	< 0.00029	0.00344	0.0201	< 0.0005	0.00074	0.00198	0.00092
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	250	210	250	250	290	250	250	210	210	220
0180	Orthophosphate, reactive as P	mg/l	< 0.01	0.1	0.046	0.08	0.077	0.05	0.011	0.085	0.075	0.36
9901	Oxygen, Dissolved, % Saturation	%	76.8	82.1	94.7	98.1	99.6	101.6	94.9	88.1	126.7	104.8
9924	Oxygen, Dissolved as O2	mg/l	8.39	9.21	12.6	13.7	13.5	13.5	11	9.02	11.7	10.4

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sampling point Bucknall Catchwater

Determinands

Sampling results

Samples from 11 Aug 2023 to 1 Jul 2024

Samples from 17 Oct 2022 to 5 Jul 2023

sampling point
Bucknall Catchwater