sampling point
Derwent At Langdale Bridge

Description	DERWENT AT LANGDALE BRIDGE
Sampling point ID	NE-49600468
Type	Freshwater – Rivers
Status	open
Location	easting northing: 494225 491020 lat lon: 54.306085, -0.553383
Area	Yorkshire
Sub-Area	Esk, Derwent, Hull
Summary	56 samples taken between 2018 and 2013

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.

13 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
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 56 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 16 Mar 2017 to 14 Mar 2018

Notation	Determinand	Units	16 Mar 2017 14:03	19 Jul 2017 14:47	16 Aug 2017 15:16	25 Sep 2017 12:03	11 Oct 2017 12:29	2 Nov 2017 13:35	12 Dec 2017 14:29	11 Jan 2018 12:57	20 Feb 2018 12:10	14 Mar 2018 10:58
0061	pH		7.87	7.95	7.96	7.89	7.94	7.75	7.94	7.61	7.34	7.96
0076	Temperature of Water	°C	8.4	14.9	13.7	12.7	12	9.3	1.3	5.4	5.6	4.5
0077	Conductivity at 25 C	μs/cm	221	248	227	197	214	178	227	194	151	186
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.051	< 0.03	0.062
0116	Nitrogen, Total Oxidised as N	mg/l	1.53	1.52	1.25	0.96	1.1	0.75	1.27	1	0.56	1.25
0117	Nitrate as N	mg/l	1.53	1.52	1.25	0.956	1.1	0.746	1.27	0.996	0.556	1.25
0118	Nitrite as N	mg/l	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004
0119	Ammonia un-ionised as N	mg/l	< 0.00036	< 0.0007	< 0.00066	< 0.00052	< 0.00055	< 0.00029	< 0.00025	0.00027	< 9.0e-05	0.00069
0135	Solids, Suspended at 105 C	mg/l		5.3	< 3	5.4	5.38	6.67	4.08	6.35	7.55	9.55
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	43	61	55	43	52	39	41	38	30	24
0180	Orthophosphate, reactive as P	mg/l	< 0.01	0.012	0.012	0.011	0.013	0.016	< 0.01	0.021	< 0.01	< 0.01
9901	Oxygen, Dissolved, % Saturation	%	104.8	100.3	104.9	95.5	98.8	100.3	98.1	101.2	95	101.6
9924	Oxygen, Dissolved as O2	mg/l	12.3	10.1	10.9	10.1	10.6	11.5	13.8	12.8	11.9	13.1

Samples from 11 Apr 2016 to 20 Feb 2017

Notation	Determinand	Units	11 Apr 2016 14:09	20 Jun 2016 13:37	18 Jul 2016 12:43	1 Sep 2016 11:46	22 Sep 2016 10:33	28 Oct 2016 13:56	17 Nov 2016 11:15	7 Dec 2016 12:47	20 Jan 2017 14:37	20 Feb 2017 12:35
0061	pH		8.45	7.66	7.96	8.21	7.76	7.7	7.9	8.04	7.68	7.72
0076	Temperature of Water	°C	8.9	13.6	14.9	13.6	13	10.5	6.3	5.7	5.8	7.9
0077	Conductivity at 25 C	μs/cm	181	139	272	180		184	175	201	188	203
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03		< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	1.18	0.49	2.07		1.29	0.68	0.89	0.96	0.97	1.32
0117	Nitrate as N	mg/l	1.18	0.486	2.07		1.29	0.676	0.886	0.956	0.966	1.32
0118	Nitrite as N	mg/l	< 0.004	< 0.004	< 0.004		< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004
0119	Ammonia un-ionised as N	mg/l	< 0.0005	< 0.00033	< 0.00072		< 0.0004	< 0.00029	< 0.00033	< 0.0004	< 0.00019	< 0.00025
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	34	26	69		72	40	32	39	31	35
0180	Orthophosphate, reactive as P	mg/l	< 0.01	< 0.01	< 0.01		0.014	< 0.01	0.013	< 0.01	< 0.01	< 0.01
9901	Oxygen, Dissolved, % Saturation	%	104	97.6	95.6	95.4		96.7	94.1	98.3	92.3	101
9924	Oxygen, Dissolved as O2	mg/l	12	10.1	9.64	9.89		10.8	11.6	12.3	11.5	12

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sampling point Derwent At Langdale Bridge

Determinands

Sampling results

Samples from 16 Mar 2017 to 14 Mar 2018

Samples from 11 Apr 2016 to 20 Feb 2017

sampling point
Derwent At Langdale Bridge