sampling point
Walverden Water D/S Reservoir

Description	WALVERDEN WATER D/S RESERVOIR
Sampling point ID	NW-88023163
Type	Freshwater – Rivers
Status	open
Location	easting northing: 386905 436952 lat lon: 53.828651, -2.200426
Area	Cumbria And Lancashire
Sub-Area	Ribble / Douglas
Summary	87 samples taken between 2020 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.

15 determinands have been measured at this site

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

Samples from 13 Jun 2019 to 11 Feb 2020

Notation	Determinand	Units	13 Jun 2019 15:02	26 Jul 2019 11:11	30 Sep 2019 09:35	22 Oct 2019 11:26	31 Oct 2019 09:44	15 Nov 2019 14:08	27 Nov 2019 14:07	5 Dec 2019 09:43	22 Jan 2020 15:00	11 Feb 2020 11:58
0061	pH		7.98	7.87	7.95	8.08	8.15	8.07	8.14	7.83	7.97	7.94
0076	Temperature of Water	°C	11.4	19.6	11.9	9.2	6.6	6.2	7.4	4.8	6.5	4.2
0077	Conductivity at 25 C	μs/cm	247	343	171	255	249	233	260	272	264	218
0085	BOD : 5 Day ATU	mg/l	2.31	1.9	1.7	1.2			1.1	1.3	1.4	1.9
0111	Ammoniacal Nitrogen as N	mg/l	0.12	0.083	0.05	0.073	0.061	0.044	0.057	0.068	0.052	0.066
0116	Nitrogen, Total Oxidised as N	mg/l	0.79	0.29	1.4	1.3	1.8	1.5	1.2	1.5	1.7	1.8
0117	Nitrate as N	mg/l	0.775	0.274	1.39	1.29	1.79	1.49	1.19	1.49	1.69	1.79
0118	Nitrite as N	mg/l	0.0151	0.016	0.0053	0.014	0.012	0.0074	0.01	0.011	0.01	0.0055
0119	Ammonia un-ionised as N	mg/l	0.00232	0.00228	0.00094	0.00126	0.00087	0.00061	0.00086	0.00057	0.00069	0.00069
0135	Solids, Suspended at 105 C	mg/l	16.3	< 3	21	6.8			8.2	4.2	7	38
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	80	130	57	82	77	73	80	85	79	55
0172	Chloride	mg/l	12.1	15	8.2	10			13	12	12	20
0180	Orthophosphate, reactive as P	mg/l	0.065	0.072	0.062	0.076	0.074	0.061	0.072	0.091	0.047	0.042
9901	Oxygen, Dissolved, % Saturation	%	95.8	83.5	95.8	98.3	98.2	99.7	99.2	99.8	95	103.6
9924	Oxygen, Dissolved as O2	mg/l	10.4	7.63	10.3	11.3	12	12.3	11.9	12.8	11.7	13.5

Samples from 5 Sep 2018 to 24 May 2019

Notation	Determinand	Units	5 Sep 2018 08:30	2 Oct 2018 14:09	11 Oct 2018 15:21	9 Nov 2018 08:04	6 Dec 2018 10:27	21 Jan 2019 11:11	8 Feb 2019 11:09	19 Mar 2019 13:15	10 May 2019 10:21	24 May 2019 12:51
0061	pH		8.28	8.08	8.42	7.97	7.71	7.94	8	7.79	8.36	7.9
0076	Temperature of Water	°C	14.1	11.1	13.1	7.9	7.8	3.8	5.6	7.4	9.3	15.6
0077	Conductivity at 25 C	μs/cm	315	322	343	351	232	300	292	225	339	358
0085	BOD : 5 Day ATU	mg/l	2		4.39	2.68	1.96	1.44	1.81	1.19	4.01	1.87
0111	Ammoniacal Nitrogen as N	mg/l	0.054	0.033	< 0.03	0.031	0.052	0.052	0.078	< 0.03	0.056	0.095
0116	Nitrogen, Total Oxidised as N	mg/l	< 0.2	1.24	0.64	0.91	3.58	2.53	3.14	2.63	0.35	0.38
0117	Nitrate as N	mg/l	0.195	1.22	0.627	0.902	3.57	2.52	3.13	2.63	0.343	0.358
0118	Nitrite as N	mg/l	0.0055	0.0193	0.0131	0.0076	0.0104	0.0136	0.0123	0.0048	0.0066	0.0223
0119	Ammonia un-ionised as N	mg/l	0.00133	0.00065	< 0.00069	0.00045	0.00042	0.00052	0.00103	< 0.00028	0.00097	0.00208
0135	Solids, Suspended at 105 C	mg/l	3.55	11.2	61.5	5.9	17.1	5	17.8	8.37	11.1	8.5
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	99	94	109	129	51	79	66	55	80	119
0172	Chloride	mg/l	16.2	14.5	14.7	16.1	15	16.7	25.4	14.1	15.8	15.5
0180	Orthophosphate, reactive as P	mg/l	0.015	0.024	< 0.01	0.038	0.059	0.053	0.061	0.042	< 0.01	0.111
9901	Oxygen, Dissolved, % Saturation	%	83	93.3	86.2	96	103.1	98.8	100.5	102.8	92.8	83.3
9924	Oxygen, Dissolved as O2	mg/l	8.51	10.2	9.04	11.4	12.2	13	12.6	12.3	10.6	8.27

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sampling point Walverden Water D/S Reservoir

Determinands

Sampling results

Samples from 13 Jun 2019 to 11 Feb 2020

Samples from 5 Sep 2018 to 24 May 2019

sampling point
Walverden Water D/S Reservoir