sampling point
Walverden Water @ George St 100 M D/S Brg

Description	RSN0620 WALVERDEN WATER @ GEORGE ST 100M D/S BRIDGE
Sampling point ID	NW-RSN0620
Type	Freshwater – Rivers
Status	open
Location	easting northing: 386633 437416 lat lon: 53.832814, -2.204578
Area	Cumbria And Lancashire
Sub-Area	Ribble / Douglas
Summary	12 samples taken during 2021

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)
C - Org Filt
Chloride Ion
Cond @ 25C
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Phosphorus-P
SiO2 Rv
Temp Water
pH

Samples from 8 Mar 2021 to 13 Dec 2021

Notation	Determinand	Units	8 Mar 2021 11:47	19 Apr 2021 13:26	20 May 2021 12:40	8 Jun 2021 14:55	16 Jul 2021 14:34	4 Aug 2021 13:20	24 Sep 2021 14:24	8 Oct 2021 14:17	9 Nov 2021 14:08	13 Dec 2021 14:33
0061	pH		8.19	8.77	8.43	8.23	8.13	8.23	7.89	7.98	7.93	7.98
0076	Temperature of Water	°C	5.4	10.2	10.7	16.5	17.8	15.9	14.8	13.4	9.8	7.7
0077	Conductivity at 25 C	μs/cm	285	326	228	314	332	347	332	268	255	235
0111	Ammoniacal Nitrogen as N	mg/l	0.065	0.022	0.098	0.049	0.047	0.066	0.16	0.048	0.036	0.023
0116	Nitrogen, Total Oxidised as N	mg/l	1.2	0.61	0.71	0.8	1.2	1.1	0.81	1.1	1.3	1.5
0117	Nitrate as N	mg/l	1.19	0.602	0.697	0.778	1.17	1.06	0.76	1.08	1.29	1.49
0118	Nitrite as N	mg/l	0.015	0.0085	0.013	0.022	0.028	0.041	0.05	0.02	0.01	0.0061
0119	Ammonia un-ionised as N	mg/l	0.00085	0.00041	0.00188	0.00144	0.00151	0.00185	0.00323	0.00107	0.00055	0.00034
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	87	110	74	110	120	120	130	86	86	74
0172	Chloride	mg/l	15	17	11	14	14	15	14	12	11	14
0180	Orthophosphate, reactive as P	mg/l	0.051	0.0025	0.016	0.054	0.097	0.079	0.054	0.056	0.049	0.04
0182	Silica, reactive as SiO2	mg/l	5.3	1.4	2.9	2.9	5.8	5.5	5.1	5.7	5.8	5.4
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	4.7	4.1	6.2	4.8	6.5	6.8	6.8	9.1	6.9	6.6
0348	Phosphorus, Total as P	mg/l	0.078	0.097	0.16	0.12	0.16	0.11	0.07	0.14	0.077	0.067
9901	Oxygen, Dissolved, % Saturation	%	98.2	106.3	93.9	94	95.2	97.7	92.1	98	98.8	100.9
9924	Oxygen, Dissolved as O2	mg/l	12.4	11.9	10.4	9.16	9.02	9.64	9.3	10.2	11.2	12

Samples from 29 Jan 2021 to 12 Feb 2021

Notation	Determinand	Units	29 Jan 2021 11:06	12 Feb 2021 12:32
0061	pH		7.98	8.08
0076	Temperature of Water	°C	5.6	2.4
0077	Conductivity at 25 C	μs/cm	203	275
0111	Ammoniacal Nitrogen as N	mg/l	0.072	0.068
0116	Nitrogen, Total Oxidised as N	mg/l	0.98	1.8
0117	Nitrate as N	mg/l	0.97	1.79
0118	Nitrite as N	mg/l	0.0097	0.011
0119	Ammonia un-ionised as N	mg/l	0.00091	0.00071
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	61	77
0172	Chloride	mg/l	15	14
0180	Orthophosphate, reactive as P	mg/l	0.053	0.049
0182	Silica, reactive as SiO2	mg/l	4.3	5.8
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	3.3
0348	Phosphorus, Total as P	mg/l	0.084	0.062
9901	Oxygen, Dissolved, % Saturation	%	102.5	100.2
9924	Oxygen, Dissolved as O2	mg/l	12.9	13.7