sampling point
Castle Dike U/S Of Gipsey Bridge Stw

Description	CASTLE DIKE U/S OF GIPSEY BRIDGE STW
Sampling point ID	AN-CASTLEDK
Type	Freshwater – Rivers
Status	open
Location	easting northing: 528004 349847 lat lon: 53.03059, -0.092687
Area	Lincolnshire And Northamptonshire
Sub-Area	North & South Team Sub Area
Summary	36 samples taken between 2024 and 2019

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

Samples from 17 Jul 2023 to 16 Apr 2024

Notation	Determinand	Units	17 Jul 2023 09:25	7 Aug 2023 12:15	1 Sep 2023 11:51	23 Oct 2023 11:42	20 Nov 2023 11:15	5 Dec 2023 09:26	16 Jan 2024 10:49	20 Feb 2024 12:24	19 Mar 2024 10:55	16 Apr 2024 12:04
0061	pH		7.98	7.89	8.17	7.17	7.63	7.47	7.78	7.49	7.8	8.42
0076	Temperature of Water	°C	16.6	16.8	17.5	11.2	9.3	6.7	1.4	9.1	11.1	9.2
0077	Conductivity at 25 C	μs/cm	938	1313	1771	970	1748	1269	1918	1405	1705	1831
0085	BOD : 5 Day ATU	mg/l								1.2	1.9	3
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	0.12	0.27	0.15	0.51	0.3	0.45	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	< 0.2	1.4	< 0.2	9.3	6.4	7	4.6	5.7	5.7	2.4
0117	Nitrate as N	mg/l	0.195	1.35	< 0.196	9.17	6.31	6.97	4.55	5.67	5.65	2.37
0118	Nitrite as N	mg/l	0.0055	0.05	< 0.004	0.13	0.095	0.027	0.05	0.031	0.05	0.026
0119	Ammonia un-ionised as N	mg/l	< 0.00085	< 0.0007	< 0.00094	0.00036	0.00202	0.00064	0.00299	0.0016	0.00565	< 0.00052
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	130	230	210	190	320	270	360	300	320	280
0180	Orthophosphate, reactive as P	mg/l	0.029	0.015	0.017	0.14	0.024	0.055	< 0.01	0.033	< 0.01	< 0.01
9901	Oxygen, Dissolved, % Saturation	%	91.7	123.9	120.5	35.3	77.4	68.6	82.1	84.5	108.1	115.7
9924	Oxygen, Dissolved as O2	mg/l	8.91	12	11.5	3.87	8.87	8.38	11.5	9.73	11.9	13.3

Samples from 10 Jun 2021 to 21 Jun 2023

Notation	Determinand	Units	10 Jun 2021 11:37	8 Jul 2021 12:54	3 Aug 2021 13:07	2 Sep 2021 14:25	13 Oct 2021 12:39	4 Nov 2021 13:43	6 Dec 2021 13:41	19 Apr 2023 13:14	16 May 2023 14:01	21 Jun 2023 12:34
0061	pH		8.58	8.58	8.92	7.96	7.68	8.53	7.99	8.12	8.55	9.44
0076	Temperature of Water	°C	22.2	20.4	19.4	16.7	12.7	7.5	4.3	13.9	15.9	23.1
0077	Conductivity at 25 C	μs/cm	1529	1429	1376	1652	1589	1151	1338	1705	1665	954
0085	BOD : 5 Day ATU	mg/l	1.4	2.6	1.3	1.2	< 6	2	18		3.1	1.7
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	0.98	0.49	0.15	0.062	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	0.45	4.3	< 0.2	< 0.2	1.8	1.3	6.7	3.7	1	1
0117	Nitrate as N	mg/l	0.407	4.23	< 0.196	< 0.196	1.69	1.24	6.63	3.65	0.956	0.967
0118	Nitrite as N	mg/l	0.043	0.069	< 0.004	< 0.004	0.11	0.061	0.073	0.051	0.044	0.033
0119	Ammonia un-ionised as N	mg/l	< 0.00132	< 0.00116	< 0.00108	< 0.00082	0.0105	0.00744	0.00176	0.0015	< 0.00084	< 0.00141
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	150	200	120	230	310	240	270	290	240	91
0180	Orthophosphate, reactive as P	mg/l	< 0.01	< 0.01	< 0.01	0.023	< 0.01	0.014	0.036	< 0.01	< 0.01	0.028
9901	Oxygen, Dissolved, % Saturation	%	155.6	153.7	126.5	99.8	48.1	133.2	94.7	168.6	183.7	176.4
9924	Oxygen, Dissolved as O2	mg/l	13.5	13.8	11.6	9.68	5.09	15.9	12.3	17.4	18.1	15.1

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sampling point Castle Dike U/S Of Gipsey Bridge Stw

Determinands

Sampling results

Samples from 17 Jul 2023 to 16 Apr 2024

Samples from 10 Jun 2021 to 21 Jun 2023

sampling point
Castle Dike U/S Of Gipsey Bridge Stw