sampling point
River Blakewater At Whalley New Rd Bdg

Description	RIVER BLAKEWATER AT WHALLEY NEW ROAD BRIDGE
Sampling point ID	NW-88023950
Type	Freshwater – Rivers
Status	open
Location	easting northing: 368956 429048 lat lon: 53.756847, -2.472316
Area	Cumbria And Lancashire
Sub-Area	Ribble / Douglas
Summary	13 samples taken between 2017 and 2016

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 8 Mar 2017 to 6 Dec 2017

Notation	Determinand	Units	8 Mar 2017 10:30	26 Apr 2017 09:56	25 May 2017 11:21	14 Jun 2017 10:26	6 Jul 2017 10:49	7 Aug 2017 11:56	29 Sep 2017 14:23	18 Oct 2017 12:00	8 Nov 2017 10:38	6 Dec 2017 12:03
0061	pH		7.8	7.97	7.87	7.94	8.05	7.82	7.74	7.66	7.86	7.69
0076	Temperature of Water	°C	7.5	7.3	14.5	13.3	14.9	14.1	13.4	11.3	7.5	8.5
0077	Conductivity at 25 C	μs/cm	344	575	603	557	648	315	272	514	453	605
0111	Ammoniacal Nitrogen as N	mg/l	0.321	0.43	0.175	0.29	0.277	0.132	0.155	0.43	0.316	0.533
0116	Nitrogen, Total Oxidised as N	mg/l	1.25	1.55	1.39	1.3	1.5	1.04	0.8	1.41	1.36	1.59
0117	Nitrate as N	mg/l	1.23	1.52	1.34	1.23	1.43	1.01	0.768	1.34	1.32	1.54
0118	Nitrite as N	mg/l	0.0171	0.0337	0.0519	0.0684	0.0709	0.0324	0.0325	0.0743	0.0385	0.0465
0119	Ammonia un-ionised as N	mg/l	0.00309	0.00601	0.00331	0.00588	0.00722	0.00216	0.00201	0.00399	0.00349	0.0043
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	106	183	193	167	188	96	91	176	145	159
0180	Orthophosphate, reactive as P	mg/l	0.087	0.055	0.032	0.068	0.05	0.086	0.053	0.035	0.04	0.025
9901	Oxygen, Dissolved, % Saturation	%	90.7	98.6	103.1	93.5	99.5	92.9	97.1	87.3	93.7	91.9
9924	Oxygen, Dissolved as O2	mg/l	10.9	11.9	10.5	9.76	10	9.53	10.1	9.54	11.2	10.7

Samples from 2 Dec 2016 to 9 Feb 2017

Notation	Determinand	Units	2 Dec 2016 09:23	9 Jan 2017 09:25	9 Feb 2017 12:35
0061	pH		7.97	7.83	7.83
0076	Temperature of Water	°C	7.4	7.8	5.2
0077	Conductivity at 25 C	μs/cm	492	433	523
0111	Ammoniacal Nitrogen as N	mg/l	0.333	0.191	0.349
0116	Nitrogen, Total Oxidised as N	mg/l	1.33	0.84	1.42
0117	Nitrate as N	mg/l	1.29	0.813	1.39
0118	Nitrite as N	mg/l	0.0355	0.0274	0.0254
0119	Ammonia un-ionised as N	mg/l	0.00469	0.00201	0.00304
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	144	90	147
0180	Orthophosphate, reactive as P	mg/l	0.037	0.011	0.047
9901	Oxygen, Dissolved, % Saturation	%	92.2	99.3	96.3
9924	Oxygen, Dissolved as O2	mg/l	11.1	11.8	12.2