sampling point
Lownorth Beck At Murk Head

Description	LOWNORTH BECK AT MURK HEAD
Sampling point ID	NE-49000486
Type	Freshwater – Rivers
Status	closed
Location	easting northing: 495294 495622 lat lon: 54.347232, -0.535491
Area	Yorkshire
Sub-Area	Esk, Derwent, Hull
Summary	18 samples taken between 2015 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.

12 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
Temp Water
pH

Samples from 4 Dec 2013 to 18 Sep 2015

Notation	Determinand	Units	4 Dec 2013 11:37	9 Jan 2014 15:10	12 Feb 2014 15:29	11 Mar 2014 15:02	9 May 2014 13:41	28 Aug 2014 13:09	21 Nov 2014 13:42	13 Mar 2015 12:29	9 Jun 2015 14:34	18 Sep 2015 11:17
0061	pH		7.61	6.26	7.45	7.83	8.21	7.85	7.65	7.74	7.78	7.98
0076	Temperature of Water	°C	4.5	5.4	3.4	5	10.7	13.2	7.6	5.8	11	10.8
0077	Conductivity at 25 C	μs/cm	199	129	189	178	157	339	123	222	217	125
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	0.051	0.045	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	< 0.2	0.44	0.42	0.33	< 0.2	0.39	0.27	0.32	< 0.2	< 0.2
0117	Nitrate as N	mg/l	< 0.196	0.436	0.416	0.326	< 0.196	0.386	0.266	0.316	< 0.196	< 0.196
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	< 0.00015	1.0e-05	0.00014	< 0.00026	< 0.00058	< 0.00049	< 0.00021	< 0.00022	< 0.00036	< 0.00055
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	33	9	24	27	29	54	15	41	52	20
0180	Orthophosphate, reactive as P	mg/l	< 0.02	< 0.02	0.036	< 0.02	< 0.02	< 0.02	0.01	0.0019	0.0063	0.0067
9901	Oxygen, Dissolved, % Saturation	%	90.6	96.7	101.8	98.3	98.1	99.9	99	96.9	122.5	94.3
9924	Oxygen, Dissolved as O2	mg/l	11.7	12.2	13.5	12.5	10.9	10.5	11.8	12.1	13.5	10.4

Samples from 24 Jan 2013 to 19 Nov 2013

Notation	Determinand	Units	24 Jan 2013 13:48	14 May 2013 12:45	19 Jul 2013 13:22	26 Jul 2013 13:46	7 Aug 2013 11:45	6 Sep 2013 12:42	16 Oct 2013 13:37	19 Nov 2013 13:47
0061	pH		7.42	8.35	7.77	7.6	7.61	7.44	7.24	7.7
0076	Temperature of Water	°C	2.1	9.6	15.8	16.1	13.1	13.6	9.7	4
0077	Conductivity at 25 C	μs/cm	321	246	268	272	263	299	187	205
0111	Ammoniacal Nitrogen as N	mg/l	0.039	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	0.54	< 0.2	0.4	0.37	0.52	0.49	0.28	< 0.2
0117	Nitrate as N	mg/l	0.536	< 0.196	0.396	0.366	0.516	0.486	0.276	< 0.196
0118	Nitrite as N	mg/l	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004
0119	Ammonia un-ionised as N	mg/l	0.00011	< 0.00053	< 0.0005	< 0.00035	< 0.00028	< 0.0002	< 9.0e-05	< 0.00018
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	30	54	73	73	69	90	11	35
0180	Orthophosphate, reactive as P	mg/l	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02
9901	Oxygen, Dissolved, % Saturation	%	95.5	119.7	93.5	92.9	94.8	92.8	99	103.4
9924	Oxygen, Dissolved as O2	mg/l	13.1	13.6	9.24	9.13	9.94	9.62	11.2	13.5