sampling point
River Lynher U/S Golberdon Stw

Description	RIVER LYNHER ABOVE GOLBERDON STW
Sampling point ID	SW-91251650
Type	Freshwater – Rivers
Status	open
Location	easting northing: 231940 70950 lat lon: 50.514152, -4.371795
Area	Devon And Cornwall
Sub-Area	Central Devon And Cornwall
Summary	13 samples taken between 2017 and 2015

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.

54 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
O Diss %sat
Orthophospht
Pb Filtered
Potassium- K
SALinsitu
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 12:00	13 Sep 2016 10:25	28 Oct 2016 10:45	22 Nov 2016 11:23	29 Dec 2016 11:35	18 Jan 2017 11:30	21 Feb 2017 11:00	29 Mar 2017 11:00	8 May 2017 10:50	24 May 2017 11:00
0050	Lead	μg/l	< 2	< 2	< 2	< 2	< 2	< 2	< 2	< 2	< 2	< 2
0052	Lead, Dissolved	μg/l	0.254	0.241	0.205	0.367	0.151	0.135	0.159	0.147	0.113	0.135
0061	pH		7.25	7.36	7.27	7.08	7.19	7.36	7.31	7.32	7.26	7.5
0076	Temperature of Water	°C	16.6	15.6	11.4	9.3	5.7	7.6	10.4	10.7	11.1	14
0077	Conductivity at 25 C	μs/cm	119	121	125	116	130	130	128	124	134	132
0106	Cadmium, Dissolved	μg/l	0.034	0.0338	0.0339	0.0452	0.0364	0.0334	0.0335	0.0379	0.0326	0.0384
0108	Cadmium	μg/l	< 0.1	< 0.1	< 0.1	< 0.1	< 0.1	< 0.1	< 0.1	< 0.1	< 0.1	< 0.1
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	1.44	1.4	1.77	1.9	2.21	2.35	2.3	2.27	2.16	2.09
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	5.47	< 3	< 3	< 3	< 3	3.18	3.68
0158	Hardness, Total as CaCO3	mg/l	30.7	29.5	32.5	29.4	34.4	34.7	34.4	33.5	36.2	35.9
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	18	18	20	18	20	21	20	20	22	22
0172	Chloride	mg/l	15.2	15.1	15	15.2	15.3	16	15.7	15.9	15.3	15.4
0177	Fluoride	mg/l	0.082	0.076	0.085	0.06	0.068	0.074	0.081	0.068	0.083	0.07
0180	Orthophosphate, reactive as P	mg/l	0.017	0.018	0.016	0.015	< 0.01	0.014	0.013	0.012	< 0.01	0.018
0182	Silica, reactive as SiO2	mg/l	5.47	6.01	6.16	4.4	6.06	5.93	5.61	5.01	5.57	5.75
0183	Sulphate as SO4	mg/l	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10	< 10
0205	Sodium, Dissolved	mg/l	9.03	8.34	8.53	7.83	8.43	8.63	9.08	8.97	8.72	9
0207	Sodium	mg/l	8.7	8.95	8.52	8.09	8.47	9.14	9.03	8.9	9.17	8.91
0209	Potassium, Dissolved	mg/l	1.42	1.52	1.59	1.85	1.43	1.44	1.51	1.54	1.54	1.65
0211	Potassium	mg/l	1.43	1.66	1.57	1.84	1.44	1.59	1.52	1.53	1.54	1.66
0235	Magnesium, Dissolved	mg/l	2.73	2.7	2.86	2.39	2.92	2.93	2.94	2.82	3.17	3.14
0237	Magnesium	mg/l	2.77	2.95	2.84	2.47	2.95	3.02	3.02	2.87	3.34	3.17
0239	Calcium, Dissolved	mg/l	7.78	7.36	8.3	7.83	8.98	9.08	8.94	8.75	9.28	9.22
0241	Calcium	mg/l	7.64	7.91	8.36	8.18	8.99	9.25	8.94	8.74	9.86	9.21
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	1.48	1.98	1.48	3.77	0.99	1.22	1.06	1.42	0.86	1.16
3164	Chromium	μg/l	< 0.5	< 0.5	< 0.5	0.933	< 0.5	< 0.5	< 0.5	1.03	< 0.5	< 0.5
3169	pH : In Situ		7.4	7.3	7.3	7.2	7.4	7.5	7.5	7.5	7.6	7.5
3408	Zinc, Dissolved	μg/l	26.9	28.7	27.6	16.5	23.2	20.1	17.9	17.9	23.6	25.2
3409	Chromium, Dissolved	μg/l	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	0.528	< 0.5	< 0.5
3410	Nickel, Dissolved	μg/l	0.709	0.803	0.822	1.1	0.844	0.793	0.846	0.963	0.746	0.881
4201	Lithium, Dissolved	μg/l	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100
6037	Aluminium, Dissolved	μg/l	22.3	23.8	22.3	110	27.2	31.2	31.4	39.1	19	21.1
6050	Manganese	μg/l	< 10	< 10	11.9	33.3	15.6	14.5	14.4	15.5	15	51.4
6051	Iron	μg/l	94.5	112	94.2	327	123	117	123	163	131	324
6057	Aluminium	μg/l	38.9	41.8	42.4	259	62.3	69.3	76.2	105	60.6	97.3
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	25.6	27	27.1	25.2	28	29.1	28.2	27.3	30.4	29.6
6064	Lithium	μg/l	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100
6450	Copper, Dissolved	μg/l	5.99	5.09	4.8	7.72	6.11	5.74	7.71	8.33	5.71	6.36
6452	Copper	μg/l	6.47	5.65	5.09	10.3	6.73	6.49	9.42	11.3	7.73	9.45
6455	Zinc	μg/l	27.1	30.1	28.7	20.4	25.5	21.8	22.3	21.9	28.3	41.1
6458	Manganese, Dissolved	μg/l	< 10	< 10	< 10	17.4	< 10	< 10	< 10	< 10	< 10	10.5
6460	Iron, Dissolved	μg/l	54.2	63.2	44.3	94.3	33.1	36	31.9	40	30.3	41.5
6462	Nickel	μg/l	< 1	< 1	1.23	1.89	1.01	1.06	1.45	3.1	< 1	1.34
6693	Strontium, Filtered	μg/l	26.4	25.2	26.8	25.2	27.9	28.6	27.8	26.8	28.7	29.1
7044	Ionic Balance	%	-3.54	-1.13	-4.31	-5.69	-4.38	-4.12	-3.78	-5.17	-1.17	-3.4
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 18 Mar 2015 to 13 Jul 2016

Notation	Determinand	Units	18 Mar 2015 12:23	22 Jun 2016 11:05	13 Jul 2016 11:20
0050	Lead	μg/l	< 2	< 2	< 2
0052	Lead, Dissolved	μg/l	< 2	0.311	0.445
0061	pH		7.5	7.44	7.76
0076	Temperature of Water	°C	8.2	14.7	13.5
0077	Conductivity at 25 C	μs/cm	129	116	123
0106	Cadmium, Dissolved	μg/l	< 0.1	0.0369	0.033
0108	Cadmium	μg/l	< 0.1	< 0.1	< 0.1
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	0.044
0116	Nitrogen, Total Oxidised as N	mg/l	2.37	1.62	1.77
0118	Nitrite as N	mg/l	< 0.004	< 0.004	< 0.004
0135	Solids, Suspended at 105 C	mg/l	6.18	< 3	< 3
0158	Hardness, Total as CaCO3	mg/l	32.9	32.3	29.9
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	15	19	22
0172	Chloride	mg/l	14.7	15.1	15.8
0177	Fluoride	mg/l		0.071	0.088
0180	Orthophosphate, reactive as P	mg/l	< 0.01	0.019	0.029
0182	Silica, reactive as SiO2	mg/l	5.18	5.73	5.65
0183	Sulphate as SO4	mg/l	< 10	< 10	< 10
0205	Sodium, Dissolved	mg/l	8.26	9.15	8.56
0207	Sodium	mg/l	8.94	8.22	8.69
0209	Potassium, Dissolved	mg/l	1.3	1.36	1.64
0211	Potassium	mg/l	1.19	1.46	1.65
0235	Magnesium, Dissolved	mg/l	2.83	2.89	2.64
0237	Magnesium	mg/l	3.01	2.69	2.76
0239	Calcium, Dissolved	mg/l	8.51	8.16	7.64
0241	Calcium	mg/l	8.96	7.54	7.86
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	0.89	2.68	1.85
3164	Chromium	μg/l	< 0.5	0.927	< 0.5
3169	pH : In Situ		7.44	7.5	7.6
3408	Zinc, Dissolved	μg/l	15.7	22.4	25
3409	Chromium, Dissolved	μg/l	< 0.5	< 0.5	< 0.5
3410	Nickel, Dissolved	μg/l	< 1	0.955	0.95
4201	Lithium, Dissolved	μg/l	< 100	< 100	< 100
6037	Aluminium, Dissolved	μg/l	34.2	56.7	27.9
6050	Manganese	μg/l	17.3	13.6	< 10
6051	Iron	μg/l	100	161	134
6057	Aluminium	μg/l	72.7	91.3	53.9
6059	Boron	μg/l	< 100	< 100	< 100
6062	Barium	μg/l	< 10	< 10	< 10
6063	Strontium	μg/l	27.1	25.7	25.8
6064	Lithium	μg/l	< 100	< 100	< 100
6450	Copper, Dissolved	μg/l	8.01	6.93	6.92
6452	Copper	μg/l	9.82	7.64	8.29
6455	Zinc	μg/l	17.2	25.5	29.4
6458	Manganese, Dissolved	μg/l	< 10	< 10	< 10
6460	Iron, Dissolved	μg/l	33.6	87.9	69.6
6462	Nickel	μg/l	< 1	2.48	1.02
6693	Strontium, Filtered	μg/l	26.2	26.6	25.6
7044	Ionic Balance	%	1.02	-6.45	-7.98
7608	Salinity : In Situ	ppt	0.06
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
9901	Oxygen, Dissolved, % Saturation	%	101.5

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sampling point River Lynher U/S Golberdon Stw

Determinands

Sampling results

Samples from 23 Aug 2016 to 24 May 2017

Samples from 18 Mar 2015 to 13 Jul 2016

sampling point
River Lynher U/S Golberdon Stw