sampling point
Marke Valley Stm U/S Leymill Wood Adit

Description	MARKE VALLEY STREAM U/S LEYMILL WOOD ADIT
Sampling point ID	SW-91253137
Type	Freshwater – Rivers
Status	closed
Location	easting northing: 228229 71826 lat lon: 50.520945, -4.424492
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 12 May 2016 to 19 Jan 2017

Notation	Determinand	Units	12 May 2016 15:40	27 May 2016 14:16	17 Jun 2016 15:00	27 Jul 2016 14:00	16 Aug 2016 15:10	14 Sep 2016 14:22	5 Oct 2016 14:25	16 Nov 2016 15:04	6 Dec 2016 15:20	19 Jan 2017 14:30
0050	Lead	μg/l	< 2	< 2	< 2	< 2	< 2	< 2	2.43	< 2	< 2	< 2
0052	Lead, Dissolved	μg/l	< 0.1	0.131	< 0.1	< 0.1	< 0.1	< 0.1	< 0.1	< 0.1	0.113	< 0.1
0061	pH		6.36	6.62	6.58	6.3	6.37	6.35	6.34	6.25	6.29	6.4
0076	Temperature of Water	°C	11.4	11.4	11.8	12.9		13.3	12	10.8	10	8.5
0077	Conductivity at 25 C	μs/cm	70.8	71.3	71.4	71.2	76	72.9	77.8	14.5	73.2	74.8
0106	Cadmium, Dissolved	μg/l	0.152	0.143	0.143	0.137	0.128	0.13	0.125	0.133	0.166	0.153
0108	Cadmium	μg/l	0.158	0.145	0.142	0.13	0.13	0.123	0.141	0.138	0.174	0.156
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	1.09	1.17	1.08	1.08	1.12	1.14	1.21	1.21	1.14	1.35
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	8.82	< 3	4.58	< 3	< 3	< 3	< 3	3.1
0158	Hardness, Total as CaCO3	mg/l	11.7	11.8	11.7	11.6	11.8	11.7	12.3	12.2	12.2	13.4
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	< 5	< 5	< 5	< 5	< 5	< 5	5	< 5	< 5	< 5
0172	Chloride	mg/l	12.1	12.7	13.2	12.1	13.4	13.2	13.2	12.9	12.5	12.9
0177	Fluoride	mg/l	0.082	0.063	0.068	0.055	0.093	0.063	0.084	0.064	0.058	0.068
0180	Orthophosphate, reactive as P	mg/l	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	0.011	< 0.01	< 0.01	< 0.01
0182	Silica, reactive as SiO2	mg/l	4.53	4.6	4.66	4.9	4.88	5.15	4.87	4.8	4.56	4.68
0183	Sulphate as SO4	mg/l	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10
0205	Sodium, Dissolved	mg/l	7.28	7.02	7.06	7.06	7.04	7.18	7.39	6.78	6.96	7.53
0207	Sodium	mg/l	7.37	7.58	7.12	6.91	7.48	7.61	7.64	7.1	7.05	7.53
0209	Potassium, Dissolved	mg/l	0.991	1.04	0.996	0.953	0.967	1	1.09	1.08	1.06	1.06
0211	Potassium	mg/l	1.05	0.962	1.01	0.931	1.03	1.02	1.33	1.11	1.08	1.16
0235	Magnesium, Dissolved	mg/l	1.47	1.45	1.48	1.46	1.5	1.52	1.57	1.56	1.53	1.69
0237	Magnesium	mg/l	1.47	1.51	1.47	1.46	1.52	1.51	1.55	1.61	1.59	1.68
0239	Calcium, Dissolved	mg/l	2.27	2.33	2.26	2.24	2.25	2.18	2.33	2.3	2.35	2.59
0241	Calcium	mg/l	2.36	2.44	2.24	2.17	2.31	2.23	2.36	2.36	2.36	2.6
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	0.23	0.27	0.74	0.29	0.26	0.43	0.44	0.45	0.24	0.55
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		6.4	6.13	6.03	6.25		6.06	6.13	6.11	6.06	6.12
3408	Zinc, Dissolved	μg/l	31.7	28.5	27.4	27.5	25.8	25.1	25	31.7	37.4	32.3
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	0.976	0.88	0.979	0.95	0.886	0.909	1.09	1.1	0.937
4201	Lithium, Dissolved	μg/l	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100
6037	Aluminium, Dissolved	μg/l	48.9	41.8	35.8	35.1	30.1	30.3	32.7	33.2	40.5	37.3
6050	Manganese	μg/l	11.2	< 10	< 10	< 10	< 10	< 10	< 10	10.1	11.1	< 10
6051	Iron	μg/l	42.9	< 30	71.6	33.7	32.4	< 30	< 30	< 30	46	< 30
6057	Aluminium	μg/l	72.3	41.5	84.3	41	37	35.1	36.8	40.9	57.7	45
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	< 20	< 20	< 20	< 20	< 20	< 20	< 20	< 20	< 20	< 20
6064	Lithium	μg/l	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100
6450	Copper, Dissolved	μg/l	81.7	73	68.4	62.4	58.9	53.7	54.9	52.5	70	64.9
6452	Copper	μg/l	79.8	66.5	72.7	62.3	55.6	52.3	54.4	52.4	73.3	63.7
6455	Zinc	μg/l	36.2	28.1	29.5	27.9	25.7	24.7	33.9	30.6	42.6	32.4
6458	Manganese, Dissolved	μg/l	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10
6460	Iron, Dissolved	μg/l	< 30	< 30	< 30	< 30	< 30	< 30	< 30	< 30	< 30	< 30
6462	Nickel	μg/l	1.23	< 1	1.03	1.06	< 1	< 1	1.29	1.02	1.2	1.25
6693	Strontium, Filtered	μg/l	< 20	< 20	< 20	< 20	< 20	< 20	< 20	< 20	< 20	< 20
7044	Ionic Balance	%	-10.7	-11.1	-14.3	-13.6	-12.8	-12.5	-11.2	-12.7	-12	-10.3
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 25 Feb 2016 to 25 Apr 2016

Notation	Determinand	Units	25 Feb 2016 14:45	22 Mar 2016 13:22	25 Apr 2016 15:39
0050	Lead	μg/l	< 2	< 2	< 2
0052	Lead, Dissolved	μg/l	0.138	< 0.1	< 0.1
0061	pH		6.55	6.5	6.54
0076	Temperature of Water	°C	9.5	9.6	10.3
0077	Conductivity at 25 C	μs/cm	74.4	72	71.5
0106	Cadmium, Dissolved	μg/l	0.206	0.177	0.176
0108	Cadmium	μg/l	0.192	0.173	0.183
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	1.08	1.06	1.05
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	13.1	11.8	12
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	< 5	< 5	< 5
0172	Chloride	mg/l	12.4	12.3	12.5
0177	Fluoride	mg/l	0.064	0.084	0.053
0180	Orthophosphate, reactive as P	mg/l	< 0.01	< 0.01	< 0.01
0182	Silica, reactive as SiO2	mg/l	4.16	4.29	4.37
0183	Sulphate as SO4	mg/l	< 10	< 10	< 10
0205	Sodium, Dissolved	mg/l	7.42	6.96	6.83
0207	Sodium	mg/l	7.2	7.04	7.57
0209	Potassium, Dissolved	mg/l	1.07	1.03	0.992
0211	Potassium	mg/l	1.09	1.06	0.943
0235	Magnesium, Dissolved	mg/l	1.52	1.45	1.47
0237	Magnesium	mg/l	1.45	1.43	1.56
0239	Calcium, Dissolved	mg/l	2.74	2.34	2.4
0241	Calcium	mg/l	2.66	2.34	2.49
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	0.33	0.22	0.37
3164	Chromium	μg/l	< 0.5	< 0.5	< 0.5
3169	pH : In Situ		6.13	6.28	6.28
3408	Zinc, Dissolved	μg/l	43.9	37.3	38
3409	Chromium, Dissolved	μg/l	< 0.5	< 0.5	< 0.5
3410	Nickel, Dissolved	μg/l	1.2	1.06	1.11
4201	Lithium, Dissolved	μg/l	< 100	< 100	< 100
6037	Aluminium, Dissolved	μg/l	81.7	58.1	58.4
6050	Manganese	μg/l	15.5	10.7	< 10
6051	Iron	μg/l	< 30	< 30	< 30
6057	Aluminium	μg/l	83.5	64.5	59.8
6059	Boron	μg/l	< 100	< 100	< 100
6062	Barium	μg/l	< 10	< 10	< 10
6063	Strontium	μg/l	< 20	< 20	< 20
6064	Lithium	μg/l	< 100	< 100	< 100
6450	Copper, Dissolved	μg/l	123	96.1	89.8
6452	Copper	μg/l	116	93.9	89.4
6455	Zinc	μg/l	41.4	35	37.2
6458	Manganese, Dissolved	μg/l	16.1	10.9	15.4
6460	Iron, Dissolved	μg/l	< 30	< 30	< 30
6462	Nickel	μg/l	1.08	< 1	1.07
6693	Strontium, Filtered	μg/l	< 20	< 20	< 20
7044	Ionic Balance	%	-10.7	-12.5	-9.65
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 Marke Valley Stm U/S Leymill Wood Adit

Determinands

Sampling results

Samples from 12 May 2016 to 19 Jan 2017

Samples from 25 Feb 2016 to 25 Apr 2016

sampling point
Marke Valley Stm U/S Leymill Wood Adit