sampling point
Eye Brook At Mill House, Allexton

Description	RSN0670 EYE BROOK AT MILL HOUSE, ALLEXTON
Sampling point ID	AN-RSN0670
Type	Freshwater – Rivers
Status	open
Location	easting northing: 480904 300490 lat lon: 52.596183, -0.807016
Area	Lincolnshire And Northamptonshire
Sub-Area	North & South Team Sub Area
Summary	11 samples taken during 2021

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.

17 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
C - Org Filt
Chloride Ion
Cond @ 25C
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
Nitrogen - N
O Diss %sat
Orthophospht
Oxygen Diss
Phosphorus-P
SiO2 Rv
Temp Water
pH

Samples from 22 Feb 2021 to 17 Dec 2021

Notation	Determinand	Units	22 Feb 2021 11:19	11 Mar 2021 11:37	16 Apr 2021 12:26	11 May 2021 11:36	17 Jun 2021 10:57	13 Jul 2021 12:20	11 Aug 2021 11:05	13 Oct 2021 13:53	22 Nov 2021 11:48	17 Dec 2021 09:12
0061	pH		8.24	8.16	8.37	8.39	8.17	8.32	8.22	8.25	8.26	8.31
0076	Temperature of Water	°C	6.9	6.9	5.4	10.6	16.4	15.4	15	11.4	5.7	6.6
0077	Conductivity at 25 C	μs/cm	660	566	755	709	774	782	786	781	821	714
0111	Ammoniacal Nitrogen as N	mg/l	0.05	0.53	< 0.03	0.043	< 0.03	0.032	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	6.4	7.5	4.7	10	4.1	3.4	2.8	3.1	2.5	6.1
0117	Nitrate as N	mg/l	6.38	7.46	4.68	9.94	4.06	3.38	2.79	3.09	2.49	6.09
0118	Nitrite as N	mg/l	0.02	0.042	0.022	0.06	0.036	0.024	0.0065	0.0091	0.0076	0.012
0119	Ammonia un-ionised as N	mg/l	0.00073	0.0077	< 0.00039	0.00082	< 0.00087	0.00087	< 0.00079	< 0.00061	< 0.0004	< 0.00043
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	220	170	230	210	260	280	270	270	280	230
0172	Chloride	mg/l	24	23	28	27	30	32	33	33	33	26
0180	Orthophosphate, reactive as P	mg/l	0.056	0.065	0.025	0.051	0.064	0.11	0.12	0.087	0.069	0.057
0182	Silica, reactive as SiO2	mg/l	7.3	6.1	2.4	4.4	6.9	10	10	10	9.7	7.8
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	4.2	8.4	3.1	5	4	4	3.6	4.4	4.3	4.6
0348	Phosphorus, Total as P	mg/l	0.072	0.58	0.031	0.084	0.13	0.15	0.16	0.11	0.076	0.071
9686	Nitrogen, Total as N	mg/l	6.7	11	5.3	11	4.7	3.9	3.3	3.6	2.8	6.4
9901	Oxygen, Dissolved, % Saturation	%	101.5	100.1	125.8	90	76.2	83.4	84.2	87.6	92.7	95.3
9924	Oxygen, Dissolved as O2	mg/l	12.3	12.2	15.9	9.99	7.44	8.31	8.47	9.55	11.6	11.7

Sample on 28 Jan 2021

Notation	Determinand	Units	28 Jan 2021 10:06
0061	pH		7.96
0076	Temperature of Water	°C	5
0077	Conductivity at 25 C	μs/cm	2767
0111	Ammoniacal Nitrogen as N	mg/l	0.053
0116	Nitrogen, Total Oxidised as N	mg/l	3
0117	Nitrate as N	mg/l	2.99
0118	Nitrite as N	mg/l	0.0068
0119	Ammonia un-ionised as N	mg/l	0.00061
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	84
0172	Chloride	mg/l	11
0180	Orthophosphate, reactive as P	mg/l	0.081
0182	Silica, reactive as SiO2	mg/l	6
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	6.9
0348	Phosphorus, Total as P	mg/l	0.5
9686	Nitrogen, Total as N	mg/l	4.4
9901	Oxygen, Dissolved, % Saturation	%	97.7
9924	Oxygen, Dissolved as O2	mg/l	12.5