sampling point
600 M D/S Thirlmere Dam

Description	600M D/S THIRLMERE DAM - ST JOHNS BECK
Sampling point ID	NW-88023211
Type	Freshwater – Rivers
Status	open
Location	easting northing: 331090 519492 lat lon: 54.565924, -3.067268
Area	Cumbria And Lancashire
Sub-Area	North Cumbria
Summary	39 samples taken between 2024 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.

16 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
Phosphorus-P
Sld Sus@105C
Temp Water
pH

Displaying the twenty most recent samples. You can see all 39 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 31 Oct 2023 to 16 Jul 2024

Notation	Determinand	Units	31 Oct 2023 10:18	21 Nov 2023 15:04	15 Dec 2023 13:20	29 Jan 2024 10:20	26 Feb 2024 11:01	18 Mar 2024 11:58	26 Apr 2024 10:03	15 May 2024 18:34	21 Jun 2024 15:04	16 Jul 2024 15:57
0061	pH		6.99	6.88	6.97	6.95	7.46	7.17	6.74	6.86	7.33	6.92
0076	Temperature of Water	°C	11	8.9	6.5	5.4	5.8	7	8.2	10.9	14.6	14.4
0077	Conductivity at 25 C	μs/cm	30	32	30	34	32	31	31	35	34	34
0085	BOD : 5 Day ATU	mg/l					1.1	1.1	< 1	< 1	< 1	< 1
0111	Ammoniacal Nitrogen as N	mg/l	0.011	0.0075	0.0072	0.0043	0.014	< 0.002	0.0047	0.0098	< 0.002	0.0099
0116	Nitrogen, Total Oxidised as N	mg/l	0.13	0.19	0.19	0.24	0.22	0.2	0.21	0.21	0.17	0.19
0117	Nitrate as N	mg/l	0.129	0.189	0.189	0.239	0.219	0.199	0.209	0.209	0.169	0.189
0118	Nitrite as N	mg/l	0.0012	< 0.001	< 0.001	< 0.001	0.0014	< 0.001	< 0.001	< 0.001	0.0012	0.0011
0119	Ammonia un-ionised as N	mg/l	2.0e-05	< 1.0e-05	< 1.0e-05	< 1.0e-05	5.0e-05	< 1.0e-05	< 1.0e-05	1.0e-05	< 1.0e-05	2.0e-05
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	8	7	5	< 5	< 5	5	6	8	8	7
0180	Orthophosphate, reactive as P	mg/l	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	0.0013	< 0.001
0348	Phosphorus, Total as P	mg/l								0.0031	0.0066	0.0023
9901	Oxygen, Dissolved, % Saturation	%	101.6	98	99.5	98.1	99.5	102.5	102.6	100.5	104.3	96
9924	Oxygen, Dissolved as O2	mg/l	11.2	11.3	12.2	12.4	12.4	12.4	12.1	11.1	10.6	9.78

Samples from 4 Sep 2014 to 26 Sep 2023

Notation	Determinand	Units	4 Sep 2014 13:23	8 Oct 2014 09:06	7 Nov 2014 09:59	27 Nov 2014 12:53	12 Jan 2015 09:22	6 Feb 2015 10:10	25 Mar 2015 12:20	27 Jun 2023 10:10	27 Jul 2023 15:49	26 Sep 2023 09:49
0061	pH		7.55	7.59	7.14	8.48	7.53	7.86	7.72	7.44	6.63	6.58
0076	Temperature of Water	°C	15.7	11.9	10	8.7	6.4	4.1	5.5	12.5	16.7	13.5
0077	Conductivity at 25 C	μs/cm	44	52	42	37	40	40	39	38	38	50
0085	BOD : 5 Day ATU	mg/l	< 1	< 1	< 1	< 1	< 1	1.26	< 1
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.01	0.003	0.013
0116	Nitrogen, Total Oxidised as N	mg/l	< 0.2	0.36	0.55	< 0.2	0.24	0.27	0.23	0.2	0.2	0.39
0117	Nitrate as N	mg/l	< 0.196	0.356	0.546	< 0.196	0.236	0.266	0.226	0.199	0.199	0.389
0118	Nitrite as N	mg/l	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.001	< 0.001	< 0.001
0119	Ammonia un-ionised as N	mg/l	< 0.0003	< 0.00025	< 8.0e-05	< 0.0005	< 0.00014	< 0.00026	< 0.00021	6.0e-05	< 1.0e-05	1.0e-05
0135	Solids, Suspended at 105 C	mg/l	< 3	< 3	9.95	< 3	< 3	< 3	< 3
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	7	10	7	9	< 5	6	< 5	6	8	13
0172	Chloride	mg/l	6.8	7.3	6.2	6.2	7	6.2	6.6
0180	Orthophosphate, reactive as P	mg/l	< 0.02	< 0.01	< 0.01	0.015	< 0.01	< 0.01	< 0.01	0.0011	< 0.001	< 0.001
9901	Oxygen, Dissolved, % Saturation	%	104.7	93.1	103.1	100.4	110.1	96.4	106	96.7	100.7	90.2
9924	Oxygen, Dissolved as O2	mg/l	10.4	10	11.6	11.7	13.5	12.6	13.3	10.3	9.77	9.38

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sampling point 600 M D/S Thirlmere Dam

Determinands

Sampling results

Samples from 31 Oct 2023 to 16 Jul 2024

Samples from 4 Sep 2014 to 26 Sep 2023

sampling point
600 M D/S Thirlmere Dam