sampling point
Hawthorn Dene U/S North Dene Tributary

Description	HAWTHORN DENE U/S NORTH DENE TRIBUTARY AT FOOTBRIDGE
Sampling point ID	NE-45500160
Type	Freshwater – Rivers
Status	open
Location	easting northing: 442273 545154 lat lon: 54.799475, -1.343966
Area	Northumberland Durham And Tees
Sub-Area	Wear & Tees
Summary	42 samples taken between 2024 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 42 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 29 Nov 2023 to 19 Aug 2024

Notation	Determinand	Units	29 Nov 2023 12:19	7 Dec 2023 11:11	15 Jan 2024 09:33	22 Feb 2024 09:08	20 Mar 2024 11:08	15 Apr 2024 13:40	14 May 2024 11:25	17 Jun 2024 09:47	15 Jul 2024 08:35	19 Aug 2024 09:59
0061	pH		8.81	8.24	8.44	8.28	8.64	8.59	8.56	8.43	8.63	8.77
0076	Temperature of Water	°C	5.3	5.6	1.9	6.7	8.2	8.6	11.5	11.5	12.9	12.1
0077	Conductivity at 25 C	μs/cm	1044	729	794	670	835	737	824	1079	703	846
0085	BOD : 5 Day ATU	mg/l				< 2	1.4	< 1	1.2	1.2	< 3	< 1
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	0.044	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	3.6	3.8	3.6	2.8	3.1	3.6	3.3	3	2.9	3.6
0117	Nitrate as N	mg/l	3.6	3.8	3.6	2.79	3.09	3.59	3.29	2.99	2.89	3.6
0118	Nitrite as N	mg/l	< 0.004	< 0.004	0.005	0.0077	0.0063	0.0052	0.0073	0.0095	0.0061	< 0.004
0119	Ammonia un-ionised as N	mg/l	< 0.00039	< 0.0004	0.00044	< 0.00043	< 0.00048	< 0.00049	< 0.00061	< 0.00061	< 0.00068	< 0.00064
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	310	230	280	230	260	270	280	260	250	310
0180	Orthophosphate, reactive as P	mg/l	0.028	0.029	0.12	0.09	0.12	0.091	0.16	0.057	0.059	0.065
9901	Oxygen, Dissolved, % Saturation	%	99.1	97.1	97.9	98.8	104	103.6	101.7	100.5	97.6	98.8
9924	Oxygen, Dissolved as O2	mg/l	12.5	12.2	13.6	12.1	12.2	12.1	11.1	10.9	10.3	10.6

Samples from 26 Oct 2021 to 23 Nov 2023

Notation	Determinand	Units	26 Oct 2021 11:13	12 Nov 2021 12:07	17 Nov 2021 10:42	25 Apr 2023 10:04	18 May 2023 09:23	18 Jul 2023 11:24	25 Jul 2023 11:58	31 Aug 2023 10:39	26 Oct 2023 08:44	23 Nov 2023 11:59
0061	pH		8.35	8.3	8.7	8.5	8.43	8.39	8.4	8.8	8.14	8.7
0076	Temperature of Water	°C	9.1	9.5	7.7	5.3	10.3	12.9	12.1	11.7	10.2	10.7
0077	Conductivity at 25 C	μs/cm	470	880	940	909	1002	1050	924	1274	545	856
0085	BOD : 5 Day ATU	mg/l					1.2			1.1
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	0.034	0.058	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.037	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	3.7	4	3.7	3.3	3.1	2.1	2	4	3.6	3.7
0117	Nitrate as N	mg/l	3.7	3.99	3.69	3.29	3.09	2.1	2	4	3.59	3.7
0118	Nitrite as N	mg/l	0.0044	0.0073	0.013	0.0063	0.01	0.0043	< 0.004	< 0.004	0.01	0.0047
0119	Ammonia un-ionised as N	mg/l	< 0.00051	0.0006	0.00089	< 0.00039	< 0.00056	< 0.00068	< 0.00064	< 0.00062	0.00068	< 0.00058
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	310	310	300	300	310	290	260	300	180	280
0180	Orthophosphate, reactive as P	mg/l	0.081	0.049	0.058	0.03	0.049	0.11	0.063	0.063	0.11	0.037
9901	Oxygen, Dissolved, % Saturation	%	97.8	96.6	93.3	104.3	99.6	93.5	99.5	94.5	100.3	100.7
9924	Oxygen, Dissolved as O2	mg/l	11.3	11	11.1	13.2	11.1	9.85	10.7	10.2	11.2	11.2

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sampling point Hawthorn Dene U/S North Dene Tributary

Determinands

Sampling results

Samples from 29 Nov 2023 to 19 Aug 2024

Samples from 26 Oct 2021 to 23 Nov 2023

sampling point
Hawthorn Dene U/S North Dene Tributary