sampling point
Dunsby Old Beck

Description	DUNSBY OLD BECK
Sampling point ID	AN-DUNSBYOB
Type	Freshwater – Rivers
Status	open
Location	easting northing: 512503 327128 lat lon: 52.829931, -0.331587
Area	Lincolnshire And Northamptonshire
Sub-Area	North & South Team Sub Area
Summary	20 samples taken between 2021 and 2011

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
Chloride Ion
Cond @ 25C
N Oxidised
NH3 un-ion
NO FLOW/SAMP
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Temp Water
pH

Samples from 11 Sep 2019 to 6 Sep 2021

Notation	Determinand	Units	11 Sep 2019 09:31	23 Oct 2019 13:03	13 Nov 2019 10:40	10 Dec 2019 13:43	16 Jan 2020 13:24	7 Feb 2020 11:09	13 Mar 2020 11:38	9 Jul 2021 12:46	4 Aug 2021 13:06	6 Sep 2021 13:08
0061	pH			7.38	7.15	8.29	8.01	7.36	8.32	7.65	7.48	7.98
0076	Temperature of Water	°C		10.3	8.9	6.3	6.9	5.1	6.6	17.1	15.6	18.9
0077	Conductivity at 25 C	μs/cm		1212	1240	824	704	1443	858	874	680	983
0085	BOD : 5 Day ATU	mg/l		< 2.8	< 1	1.6	1.1	1.4	< 1	1.7	1.7	1.5
0111	Ammoniacal Nitrogen as N	mg/l		0.086	0.095	< 0.03	< 0.03	0.1	< 0.03	0.034	0.037	0.048
0116	Nitrogen, Total Oxidised as N	mg/l		7.9	8.44	9.5	8.1	4	8.8	5.1	4	8.1
0117	Nitrate as N	mg/l		7.89	8.43	9.49	8.09	3.99	8.78	5.01	3.97	8.06
0118	Nitrite as N	mg/l		0.0072	0.0076	0.014	0.011	0.0065	0.016	0.087	0.027	0.04
0119	Ammonia un-ionised as N	mg/l		0.00039	0.00023	< 0.00042	< 0.00044	0.00029	< 0.00043	0.00047	0.00031	0.0016
0162	Alkalinity to pH 4.5 as CaCO3	mg/l		330	306	260	240	340	190	280	190	260
0180	Orthophosphate, reactive as P	mg/l		< 0.01	0.021	0.1	0.075	< 0.01	0.032	0.41	0.44	0.69
7668	No flow /No sample		0
9901	Oxygen, Dissolved, % Saturation	%		73.9	52.6	85.3	97.4	72.6	126.4	76.7	50.4	119.4
9924	Oxygen, Dissolved as O2	mg/l		8.27	6.08	10.5	11.8	9.24	15.5	7.38	5	11.1

Samples from 23 Nov 2011 to 12 Aug 2019

Notation	Determinand	Units	23 Nov 2011 10:30	30 Dec 2011 12:40	3 Feb 2012 13:30	6 Mar 2012 13:45	23 Apr 2019 10:57	7 May 2019 13:32	22 May 2019 09:42	12 Jun 2019 12:42	15 Jul 2019 11:15	12 Aug 2019 10:54
0061	pH						7.96		7.85	7.31
0076	Temperature of Water	°C					11.7		12.2	12.3
0077	Conductivity at 25 C	μs/cm					1012		1010	911
0085	BOD : 5 Day ATU	mg/l					< 1		1.34	5.89
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	0.045	0.598	< 0.03	0.043		0.047	0.046
0116	Nitrogen, Total Oxidised as N	mg/l	31.6	30.9	20.4	6.48	11.3		10.2	24
0117	Nitrate as N	mg/l					11.2		10.1	24
0118	Nitrite as N	mg/l					0.0739		0.0732	0.011
0119	Ammonia un-ionised as N	mg/l					0.00081		0.00072	0.00021
0162	Alkalinity to pH 4.5 as CaCO3	mg/l					243		251	243
0172	Chloride	mg/l	184	133	133	112
0180	Orthophosphate, reactive as P	mg/l	0.47	3.2	2.31	0.396	0.56		0.583	0.086
7668	No flow /No sample							0			0	0
9901	Oxygen, Dissolved, % Saturation	%					100.1		82.6	58.8
9924	Oxygen, Dissolved as O2	mg/l					10.8		8.84	6.28