sampling point
North Dene D/S Hawthorn Stw

Description	NORTH DENE D/S HAWTHORN STW
Sampling point ID	NE-45500159
Type	Freshwater – Rivers
Status	open
Location	easting northing: 442785 545623 lat lon: 54.803646, -1.335933
Area	Northumberland Durham And Tees
Sub-Area	Wear & Tees
Summary	23 samples taken between 2021 and 2017

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.

16 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
BOD ATU
COD as O2
Chloride Ion
Cond @ 25C
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Sld Sus@105C
Temp Water
pH

Displaying the twenty most recent samples. You can see all 23 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 16 Sep 2019 to 14 Jan 2021

Notation	Determinand	Units	16 Sep 2019 12:06	22 Nov 2019 11:37	18 Dec 2019 10:58	23 Jan 2020 11:24	7 Feb 2020 08:34	10 Mar 2020 11:39	6 Oct 2020 10:57	17 Nov 2020 11:47	2 Dec 2020 10:37	14 Jan 2021 11:00
0061	pH		8.56	8.47	8.41	8.41	8.47	8.44	8.38	8.35	8.42	8.07
0076	Temperature of Water	°C	10.3	7.2	3.6	6.4	2.8	8.3	11.6	10.2	6	3.9
0077	Conductivity at 25 C	μs/cm	918	905	960	957	991	1053	751	952	982	447
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	0.063	0.032	0.2	0.11	0.18	0.033	0.13	0.038
0116	Nitrogen, Total Oxidised as N	mg/l	5	6.47	8.8	6.6	9.2	10	11	9.1	18	2.3
0117	Nitrate as N	mg/l	5	6.45	8.76	6.56	9.12	9.89	10.9	9.04	17.8	2.3
0118	Nitrite as N	mg/l	< 0.004	0.0157	0.044	0.041	0.078	0.11	0.059	0.062	0.16	< 0.004
0119	Ammonia un-ionised as N	mg/l	< 0.00056	< 0.00045	0.00072	0.00045	0.00215	0.00177	0.00369	0.00061	0.00177	0.00044
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	290	284	280	300	280	250	220	270	230	100
0180	Orthophosphate, reactive as P	mg/l	0.5	0.441	0.66	0.51	0.95	1.2	0.65	1.2	2.4	0.068
9901	Oxygen, Dissolved, % Saturation	%	99.2	97.7	101	111.7	99.6	104.5	97.8	90.7	94.7	101.6
9924	Oxygen, Dissolved as O2	mg/l	11.1	11.8	13.4	13.7	13.5	12.3	10.6	10.2	11.8	13.3

Samples from 19 Apr 2017 to 13 May 2019

Notation	Determinand	Units	19 Apr 2017 10:43	12 May 2017 11:25	7 Jun 2017 10:44	12 Jul 2017 10:45	16 Aug 2017 11:03	13 Sep 2017 11:38	11 Oct 2017 09:51	15 Nov 2017 10:52	12 Dec 2017 11:55	13 May 2019 13:02
0061	pH		8.46	8.34	8.2	8.28	8.31	8.03	8.31	8.24	8.38	8.44
0076	Temperature of Water	°C	8.1	11	11.7	13.9	14.5	11.9	12.6	8.2	2	14.4
0077	Conductivity at 25 C	μs/cm	898	937	619	852	976	646	891	864	1128	970
0085	BOD : 5 Day ATU	mg/l	2.91	4.75	3.21	2.56	5.58	4.29	3.83	< 2.75	1.5
0092	Chemical Oxygen Demand :- {COD}	mg/l	25	54	34	34	106	80	48	38	< 10
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	0.045	0.092	0.137	0.046	0.228	< 0.03	0.147	0.161	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	13.5	21.6	11	13.4	25	12.3	19.6	19.8	10.6	2.51
0117	Nitrate as N	mg/l	13.5	21.5	11	13.3	25	12.2	19.6	19.6	10.5	2.5
0118	Nitrite as N	mg/l	0.0366	0.0576	0.0284	0.0748	0.0428	0.0814	0.0398	0.17	0.0604	0.0146
0119	Ammonia un-ionised as N	mg/l	< 0.00048	0.00088	0.0019	0.00332	0.00117	0.00478	< 0.00066	0.00235	0.00163	< 0.00075
0135	Solids, Suspended at 105 C	mg/l	28.8	117	63.4	60.7	649	122	55	28.5	14.3
0162	Alkalinity to pH 4.5 as CaCO3	mg/l										273
0172	Chloride	mg/l	74.3	68.4	34.8	47.2	69.3	78	70.3	63.9	234
0180	Orthophosphate, reactive as P	mg/l	1.82	3.39	1.31	1.98	3.12	0.719	2.86	2.86	0.791	0.415
9901	Oxygen, Dissolved, % Saturation	%	98.1	102.9	113.8	96.7	119	117.5	96.1	100	97	113.9
9924	Oxygen, Dissolved as O2	mg/l	11.6	11.3	12.3	9.96	12.1	12.7	10.2	11.8	13.4	11.6

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sampling point North Dene D/S Hawthorn Stw

Determinands

Sampling results

Samples from 16 Sep 2019 to 14 Jan 2021

Samples from 19 Apr 2017 to 13 May 2019

sampling point
North Dene D/S Hawthorn Stw