sampling point
Tokenbury Stream At Dwellamill Wood

Description	TOKENBURY STREAM AT DWELLAMILL WOOD
Sampling point ID	SW-91253215
Type	Freshwater – Rivers
Status	open
Location	easting northing: 229979 71448 lat lon: 50.51806, -4.399656
Area	Devon And Cornwall
Sub-Area	Central Devon And Cornwall
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.

52 determinands have been measured at this site

Al- Filtered
Alky pH 4.5
Aluminium-Al
Ammonia(N)
B - Filtered
Ba- Filtered
Barium - Ba
Boron - as B
C - Org Filt
Ca Filtered
Cadmium - Cd
Calcium - Ca
Cd Filtered
Chloride Ion
Chromium -Cr
Cond @ 25C
Copper - Cu
Cr- Filtered
Cu Filtered
Fe- Filt
Fluoride - F
Hardness
IonicBalance
Iron - as Fe
K- Filtered
Lead - as Pb
Lithium - Li
Lithium Filt
Magnesium-Mg
Manganse-Mn
Mg Filtered
Mn- Filtered
N Oxidised
Na- Filtered
Ni- Filtered
Nickel - Ni
Nitrite-N
Orthophospht
Pb Filtered
Potassium- K
SO4dis
SiO2 Rv
Sld Sus@105C
Sodium - Na
Strontium-Sr
StrontumFilt
Sulphate SO4
Temp Water
Zinc - as Zn
Zn- Filtered
pH
pH in-situ

Samples from 23 Aug 2016 to 24 May 2017

Notation	Determinand	Units	23 Aug 2016 13:00	13 Sep 2016 11:05	28 Oct 2016 11:20	22 Nov 2016 12:20	29 Dec 2016 12:45	18 Jan 2017 12:05	21 Feb 2017 12:00	29 Mar 2017 11:35	8 May 2017 11:25	24 May 2017 11:40
0050	Lead	μg/l	< 2	< 2	< 2	< 2	< 2	< 2	< 2	< 2	< 2	< 2
0052	Lead, Dissolved	μg/l	< 0.1	< 0.1	< 0.1	< 0.1	< 0.1	< 0.1	< 0.1	< 0.1	< 0.1	< 0.1
0061	pH		7.31	7.12	7.11	6.71	7.04	7.03	7.04	7.03	7.04	7.26
0076	Temperature of Water	°C	15.9	14.7	11.6	10.3	8.3	8.5	10.7	16.8	11.9	13.2
0077	Conductivity at 25 C	μs/cm	109	113	111	108	107	108	106	163	110	109
0106	Cadmium, Dissolved	μg/l	0.373	0.379	0.41	0.377	0.432	0.413	0.416	0.392	0.425	0.444
0108	Cadmium	μg/l	0.359	0.37	0.409	0.368	0.421	0.428	0.438	0.405	0.43	0.453
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	0.033	< 0.03	< 0.03	< 0.03	0.045	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	1.34	1.29	1.46	1.7	1.63	1.69	1.43	1.46	1.35	1.36
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
0135	Solids, Suspended at 105 C	mg/l	< 3	< 3	< 3	3.97	< 3	< 3	< 3	< 3	< 3	< 3
0158	Hardness, Total as CaCO3	mg/l	26.3	26	26	25.9	25.1	25.9	23.9	24.4	24.7	25.8
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	12	13	13	12	10	12	11	10	10	12
0172	Chloride	mg/l	14.2	14.4	14	14.4	14.1	14.4	14.7	14.4	14.3	14.4
0177	Fluoride	mg/l	0.077	0.086	0.089	0.068	0.071	0.078	0.091	0.082	0.09	0.074
0180	Orthophosphate, reactive as P	mg/l	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01
0182	Silica, reactive as SiO2	mg/l	6.36	6.52	6.15	4.84	5.63	5.53	5.36	4.96	5.99	6.05
0183	Sulphate as SO4	mg/l	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10
0205	Sodium, Dissolved	mg/l	8.61	8.04	7.81	7.76	7.9	7.89	8.55	8.39	7.96	8.54
0207	Sodium	mg/l	7.63	8.39	8.05	8.45	7.67	8.25	8.42	8.1	8.24	8.22
0209	Potassium, Dissolved	mg/l	1.59	1.75	1.73	1.63	1.52	1.54	1.59	1.58	1.65	1.6
0211	Potassium	mg/l	1.61	1.91	1.7	1.91	1.55	1.64	1.52	1.62	1.7	1.64
0235	Magnesium, Dissolved	mg/l	2.7	2.76	2.78	2.68	2.62	2.71	2.41	2.45	2.64	2.76
0237	Magnesium	mg/l	2.59	2.96	2.84	2.73	2.53	2.78	2.45	2.41	2.7	2.69
0239	Calcium, Dissolved	mg/l	6.1	5.88	5.81	5.95	5.73	5.89	5.58	5.72	5.53	5.8
0241	Calcium	mg/l	5.56	6.18	6.06	6.52	5.54	5.93	5.56	5.52	5.76	5.6
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	0.56	0.95	0.7	1.01	0.42	0.44	0.51	0.81	0.54	0.54
3164	Chromium	μg/l	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5
3169	pH : In Situ		7.3	7.4	7.3	7.2	7.4	7.4	7.3	7.5	7.4	7.5
3408	Zinc, Dissolved	μg/l	58	60.2	65	51.6	65	62.3	58.2	54.5	60.5	65.7
3409	Chromium, Dissolved	μg/l	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5
3410	Nickel, Dissolved	μg/l	1.01	0.999	0.983	0.94	1.1	1.06	1.04	0.994	1.14	1.17
4201	Lithium, Dissolved	μg/l	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100
6037	Aluminium, Dissolved	μg/l	10.6	11.9	12.6	22.3	16.6	15.6	24.2	31.5	14.4	12.6
6050	Manganese	μg/l	15.6	18.5	19.8	24.2	25.4	25.3	29.5	27.9	29.9	28.8
6051	Iron	μg/l	30	82.2	38.4	177	71.1	67.9	71.2	104	46.7	42.2
6057	Aluminium	μg/l	14.3	26.9	19	111	49.6	45.1	64.9	98.7	25.9	24.4
6059	Boron	μg/l	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100
6062	Barium	μg/l	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10
6063	Strontium	μg/l	21.7	24.2	22.5	23.3	21.4	22.6	21.8	20.9	21.6	21.7
6064	Lithium	μg/l	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100
6450	Copper, Dissolved	μg/l	15.6	17.3	17.8	27.6	30	28.8	39.8	43.1	25	23.6
6452	Copper	μg/l	16.3	20.2	18.9	33.2	34.7	33.1	45.5	49.2	28.4	25.5
6455	Zinc	μg/l	56.4	65	63.8	66.3	64.2	60.1	63.2	54.8	63.4	65.4
6458	Manganese, Dissolved	μg/l	15.5	15.2	19.2	19.5	24.3	23.1	27.9	26.3	29.9	28.5
6460	Iron, Dissolved	μg/l	< 30	< 30	< 30	< 30	< 30	< 30	< 30	< 30	< 30	< 30
6462	Nickel	μg/l	< 1	1.07	1.08	1.19	1.02	1.04	1.08	< 1	1.25	1.1
6693	Strontium, Filtered	μg/l	22.9	22.3	22.3	21.2	21.7	22.3	21.6	20.9	21.7	21.7
7044	Ionic Balance	%	-4.45	-0.0173	-1.96	-0.461	-3.6	-2.59	-3.3	-2.84	0.217	-2.74
7859	Sulphate, Dissolved as SO4	mg/l	10	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10
9446	Barium, Dissolved	μg/l	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10
9447	Boron, Dissolved	μg/l	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100

Samples from 19 May 2016 to 13 Jul 2016

Notation	Determinand	Units	19 May 2016 15:35	22 Jun 2016 12:00	13 Jul 2016 12:20
0050	Lead	μg/l	< 2	< 2	< 2
0052	Lead, Dissolved	μg/l	0.128	< 0.1	< 0.1
0061	pH		7.33	7.42	7.4
0076	Temperature of Water	°C	11.2	13.8	13
0077	Conductivity at 25 C	μs/cm	111	109	107
0106	Cadmium, Dissolved	μg/l	0.375	0.404	0.346
0108	Cadmium	μg/l	0.379	0.388	0.359
0111	Ammoniacal Nitrogen as N	mg/l	0.045	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	1.35	1.35	1.34
0118	Nitrite as N	mg/l	< 0.004	< 0.004	< 0.004
0135	Solids, Suspended at 105 C	mg/l	< 3	< 3	< 3
0158	Hardness, Total as CaCO3	mg/l	25.4	26.9	24.7
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	13	13	13
0172	Chloride	mg/l	13.8	14.1	13.9
0177	Fluoride	mg/l	0.079	0.07	0.101
0180	Orthophosphate, reactive as P	mg/l	< 0.01	< 0.01	< 0.01
0182	Silica, reactive as SiO2	mg/l	5.59	6.06	6.02
0183	Sulphate as SO4	mg/l	< 10	< 10	< 10
0205	Sodium, Dissolved	mg/l	8.1	8.67	7.81
0207	Sodium	mg/l	8.92	8.1	7.92
0209	Potassium, Dissolved	mg/l	1.61	1.76	1.65
0211	Potassium	mg/l	1.72	1.72	1.66
0235	Magnesium, Dissolved	mg/l	2.64	2.78	2.56
0237	Magnesium	mg/l	2.82	2.7	2.65
0239	Calcium, Dissolved	mg/l	5.83	6.19	5.68
0241	Calcium	mg/l	6.3	5.91	5.81
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	0.73	0.9	0.73
3164	Chromium	μg/l	< 0.5	< 0.5	< 0.5
3169	pH : In Situ			7.5	7.7
3408	Zinc, Dissolved	μg/l	53.6	59.4	54.2
3409	Chromium, Dissolved	μg/l	< 0.5	< 0.5	< 0.5
3410	Nickel, Dissolved	μg/l	1.04	1.11	1.02
4201	Lithium, Dissolved	μg/l	< 100	< 100	< 100
6037	Aluminium, Dissolved	μg/l	13	13.8	11.9
6050	Manganese	μg/l	26.9	25.3	20.7
6051	Iron	μg/l	45	61.1	57.8
6057	Aluminium	μg/l	25.4	21.8	28.2
6059	Boron	μg/l	< 100	< 100	< 100
6062	Barium	μg/l	< 10	< 10	< 10
6063	Strontium	μg/l	23.4	22.3	22.3
6064	Lithium	μg/l	< 100	< 100	< 100
6450	Copper, Dissolved	μg/l	19.6	19.5	16.7
6452	Copper	μg/l	22.4	21.3	19
6455	Zinc	μg/l	54.3	64.5	56
6458	Manganese, Dissolved	μg/l	24.7	24.9	18.8
6460	Iron, Dissolved	μg/l	< 30	< 30	< 30
6462	Nickel	μg/l	1.03	1.17	< 1
6693	Strontium, Filtered	μg/l	22	23.2	22
7044	Ionic Balance	%	1.29	-2.59	-3.28
7859	Sulphate, Dissolved as SO4	mg/l	< 10	< 10	< 10
9446	Barium, Dissolved	μg/l	< 10	< 10	< 10
9447	Boron, Dissolved	μg/l	< 100	< 100	< 100

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sampling point Tokenbury Stream At Dwellamill Wood

Determinands

Sampling results

Samples from 23 Aug 2016 to 24 May 2017

Samples from 19 May 2016 to 13 Jul 2016

sampling point
Tokenbury Stream At Dwellamill Wood