sampling point
Seven U/S Sinnington

Description	RSN1668 RIVER SEVEN U/S SINNINGTON
Sampling point ID	NE-RSN1668
Type	Freshwater – Rivers
Status	open
Location	easting northing: 474329 486385 lat lon: 54.267716, -0.860232
Area	Yorkshire
Sub-Area	Esk, Derwent, Hull
Summary	12 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 3 Mar 2021 to 10 Dec 2021

Notation	Determinand	Units	3 Mar 2021 09:35	12 Apr 2021 11:21	6 May 2021 10:25	24 Jun 2021 10:53	26 Jul 2021 14:44	19 Aug 2021 11:55	16 Sep 2021 16:24	7 Oct 2021 10:19	5 Nov 2021 15:11	10 Dec 2021 14:28
0061	pH		8.39	8.08	8.18	7.89	8.29	7.96	7.8	8.04	7.79	7.98
0076	Temperature of Water	°C	4.4	4.6	6.1	14.4	18.7	14.2	13.7	12.2	7.7	4.7
0077	Conductivity at 25 C	μs/cm	196	342	154	248	273	257	129	118	113	143
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.002	0.063	0.01	0.0075	0.0045	0.021	0.017	0.021
0116	Nitrogen, Total Oxidised as N	mg/l	0.87	0.44	0.57	0.59	0.45	0.43	0.23	0.63	0.76	0.77
0117	Nitrate as N	mg/l	0.866	0.436	0.568	0.585	0.447	0.428	0.227	0.626	0.758	0.768
0118	Nitrite as N	mg/l	< 0.004	< 0.004	0.002	0.0053	0.0033	0.0019	0.0027	0.0036	0.0019	0.0021
0119	Ammonia un-ionised as N	mg/l	< 0.00036	< 0.00037	< 3.0e-05	0.00124	0.00034	0.00017	7.0e-05	0.00045	0.00016	0.00025
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	42	54	27	70	77	76	43	19	18	21
0172	Chloride	mg/l	17	33	17	19	19	19	17	13	13	20
0180	Orthophosphate, reactive as P	mg/l	< 0.01	< 0.01	0.0044	0.036	0.014	0.019	0.019	0.015	0.011	0.011
0182	Silica, reactive as SiO2	mg/l	8.8	8.2	6.3	9.7	11	11	8.5	6.5	6.7	6.8
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	3.3	2.8	6.8	3.8	3.8	4.4	19	16	12	9.1
0348	Phosphorus, Total as P	mg/l	0.013	0.022	0.023	0.13	0.08	0.054	0.054	0.045	0.06	0.021
9686	Nitrogen, Total as N	mg/l	1.1	0.97
9901	Oxygen, Dissolved, % Saturation	%	96.9	98.7	93.4	92.7	95.3	99.3	83.8	99.2	98	100.9
9924	Oxygen, Dissolved as O2	mg/l	12.6	12.7	11.6	9.44	8.87	10.2	8.67	10.6	11.7	13

Samples from 21 Jan 2021 to 4 Feb 2021

Notation	Determinand	Units	21 Jan 2021 09:08	4 Feb 2021 12:29
0061	pH		7.3	7.98
0076	Temperature of Water	°C	4.4	4.6
0077	Conductivity at 25 C	μs/cm	84	116
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	0.83	0.9
0117	Nitrate as N	mg/l	0.826	0.896
0118	Nitrite as N	mg/l	< 0.004	< 0.004
0119	Ammonia un-ionised as N	mg/l	< 7.0e-05	< 0.00035
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	12	21
0172	Chloride	mg/l	9.9	13
0180	Orthophosphate, reactive as P	mg/l	< 0.01	0.01
0182	Silica, reactive as SiO2	mg/l	3.9	5.3
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	11	8.5
0348	Phosphorus, Total as P	mg/l	0.063	0.019
9686	Nitrogen, Total as N	mg/l	1.3	1.3
9901	Oxygen, Dissolved, % Saturation	%	102.4	98.2
9924	Oxygen, Dissolved as O2	mg/l	13.3	12.7