sampling point
Porthleven Stream U/S Hope Farm

Description	PORTHLEVEN STREAM UPSTREAM PONDS AT HOPE FARM
Sampling point ID	SW-82110190
Type	Freshwater – Rivers
Status	open
Location	easting northing: 162127 29725 lat lon: 50.119831, -5.328989
Area	Devon And Cornwall
Sub-Area	West Devon And Cornwall
Summary	12 samples taken between 2018 and 2017

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 15 Aug 2017 to 24 May 2018

Notation	Determinand	Units	15 Aug 2017 14:20	21 Sep 2017 15:50	19 Oct 2017 14:20	14 Nov 2017 14:30	14 Dec 2017 14:30	9 Jan 2018 14:40	15 Feb 2018 14:20	27 Mar 2018 14:35	18 Apr 2018 14:44	24 May 2018 14:45
0050	Lead	μg/l	< 2	< 2	8.73	< 2	< 2	< 2	< 2	< 2	< 2	< 2
0052	Lead, Dissolved	μg/l	0.245	0.156	0.835	0.215	0.223	0.421	0.383	0.43	0.406	0.124
0061	pH		6.76	6.71	6.66	6.47	6.49	6.34	6.31	6.47	6.38	6.63
0076	Temperature of Water	°C	16	14.4	13.4	12.1	9.4		10.5	12.2	14.5	14.1
0077	Conductivity at 25 C	μs/cm	255	257	259	260	255		268	259	269	257
0106	Cadmium, Dissolved	μg/l	0.767	0.794	0.743	0.933	0.735	1.43	1.14	1.08	1.17	0.865
0108	Cadmium	μg/l	0.781	0.805	0.903	0.924	0.762	1.43	1.11	1.14	1.2	0.828
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	0.046	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	4.63	5.36	4.97	5.94	5.79	6.04	6.22	6.02	6.7	5.99
0118	Nitrite as N	mg/l	< 0.004	< 0.004	0.0087	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004
0135	Solids, Suspended at 105 C	mg/l	4.15	3.17	31.1	< 3	3.18	4.65	7.25	< 3	< 3	< 3
0158	Hardness, Total as CaCO3	mg/l	61.9	63	63.4	62.3	61.9	64.6	64.4	64.4	66.1	64
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	23	21	22	16	20	15	17	18	18	20
0172	Chloride	mg/l	35.5	34.2	38.5	36	34.5	38.7	37.9	35.9	37.6	36.8
0177	Fluoride	mg/l	0.085	0.095	0.092	0.087	0.095	0.092	0.094	0.098	0.093	0.083
0180	Orthophosphate, reactive as P	mg/l	0.011	< 0.01	0.026	0.041	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01
0182	Silica, reactive as SiO2	mg/l	5.43	5.62	5.05	5.36	5.31	6.13	5.25	4.84	4.95	5.25
0183	Sulphate as SO4	mg/l	18.6	19.8	18.8	20.8	19.6	24.1	21.1	20.6	21.5	20.9
0205	Sodium, Dissolved	mg/l	19.7	19.6	21.2	20.7	19.9	21.6	20.6	21.1	20.8	20.9
0207	Sodium	mg/l	18.8	19.4	19.4	19.9	20	21.5	21.1	21.1	20.6	20.2
0209	Potassium, Dissolved	mg/l	3.2	3.07	6.2	2.95	3.02	3.27	3.11	2.87	2.81	2.53
0211	Potassium	mg/l	3.32	3.2	6.34	2.94	3.03	3.35	3.13	2.81	2.84	2.63
0235	Magnesium, Dissolved	mg/l	5.08	5.12	5.1	5.06	4.9	5.56	5.1	4.97	5.26	5.12
0237	Magnesium	mg/l	4.91	5.05	5.06	5.05	4.95	5.57	5.14	4.94	5.25	5.33
0239	Calcium, Dissolved	mg/l	16.4	16.8	17	16.6	16.7	16.7	17.4	17.6	17.8	17.2
0241	Calcium	mg/l	15.6	16.4	15.6	16.2	16.7	16.7	17.8	17.2	17.8	16.8
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	1.88	1.64	4.3	1.41	1.64	1.89	1.58	1.61	1.3	1.24
3164	Chromium	μg/l	< 0.5	< 0.5	1.59	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5
3169	pH : In Situ		6.7	6.5	6.5	6.5	6.4		5.8	5.8	6	6.5
3408	Zinc, Dissolved	μg/l	187	212	209	241	199	415	332	317	318	211
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	7.22	7.84	7.8	9.12	7.28	15.4	11.2	11.6	11.7	8.5
4201	Lithium, Dissolved	μg/l	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100
6037	Aluminium, Dissolved	μg/l	21.2	20.8	44.6	23.7	29.2	40.8	35	37.6	30.2	23.3
6050	Manganese	μg/l	10	13.1	43.7	15.8	14.4	27	17.6	14.9	16.4	< 10
6051	Iron	μg/l	91.5	94.7	1170	59.6	111	118	178	67.8	41.1	< 30
6057	Aluminium	μg/l	51.7	57.7	638	49.9	76.5	97.5	146	73	52.8	30.8
6059	Boron	μg/l	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100
6062	Barium	μg/l	< 10	< 10	10.7	< 10	< 10	< 10	< 10	< 10	< 10	< 10
6063	Strontium	μg/l	77.1	79.2	77.3	78.8	78.1	84.5	86	82.9	87.8	84.9
6064	Lithium	μg/l	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100
6450	Copper, Dissolved	μg/l	18.3	17.8	27.4	22.5	21	29.3	27.4	29.9	30.4	23.8
6452	Copper	μg/l	21.6	20.2	60.4	24.7	22.8	30.1	32.1	31	31.9	22.8
6455	Zinc	μg/l	197	214	230	256	199	427	323	326	327	221
6458	Manganese, Dissolved	μg/l	10.5	11.8	22	14.6	12.8	25	15	14.9	15.4	< 10
6460	Iron, Dissolved	μg/l	35.7	< 30	118	< 30	< 30	< 30	< 30	< 30	< 30	< 30
6462	Nickel	μg/l	7.3	7.9	9.03	9.53	7.16	15.1	11.3	11.5	12.1	8.26
6693	Strontium, Filtered	μg/l	77.9	78.3	79.9	78.9	78.2	84.1	85.5	84.5	88	82.6
7044	Ionic Balance	%	-2.19	-0.442	-1.58	-0.621	-0.13	-0.24	0.379	0.534	-1.23	-1.71
7859	Sulphate, Dissolved as SO4	mg/l	18.5	20.3	19.7	21	19.6	24.1	21.1	20.9	21.5	20.5
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 20 Jun 2017 to 24 Jul 2017

Notation	Determinand	Units	20 Jun 2017 14:35	24 Jul 2017 14:23
0050	Lead	μg/l	< 2	< 2
0052	Lead, Dissolved	μg/l	0.238	0.214
0061	pH		6.78	6.86
0076	Temperature of Water	°C	20.5	18.9
0077	Conductivity at 25 C	μs/cm	258	255
0106	Cadmium, Dissolved	μg/l	0.83	0.765
0108	Cadmium	μg/l	0.892	0.789
0111	Ammoniacal Nitrogen as N	mg/l	0.044	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	4.64	4.11
0118	Nitrite as N	mg/l	0.0063	< 0.004
0135	Solids, Suspended at 105 C	mg/l	< 3	8.07
0158	Hardness, Total as CaCO3	mg/l	62.6	61
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	23	20
0172	Chloride	mg/l	36.9	36.7
0177	Fluoride	mg/l	0.078	0.083
0180	Orthophosphate, reactive as P	mg/l	0.011	0.02
0182	Silica, reactive as SiO2	mg/l	5.55	5.35
0183	Sulphate as SO4	mg/l	19.8	19.2
0205	Sodium, Dissolved	mg/l	20.3	20
0207	Sodium	mg/l	19.8	20
0209	Potassium, Dissolved	mg/l	3.09	3.27
0211	Potassium	mg/l	3.05	3.19
0235	Magnesium, Dissolved	mg/l	5.15	5.05
0237	Magnesium	mg/l	5.13	5.07
0239	Calcium, Dissolved	mg/l	16.6	16.1
0241	Calcium	mg/l	16.1	16.4
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	1.71	1.54
3164	Chromium	μg/l	< 0.5	< 0.5
3169	pH : In Situ		6.7	6.7
3408	Zinc, Dissolved	μg/l	227	182
3409	Chromium, Dissolved	μg/l	< 0.5	< 0.5
3410	Nickel, Dissolved	μg/l	8.33	7.72
4201	Lithium, Dissolved	μg/l	< 100	< 100
6037	Aluminium, Dissolved	μg/l	23.6	23.6
6050	Manganese	μg/l	13.1	10.4
6051	Iron	μg/l	54	63.7
6057	Aluminium	μg/l	45.1	42.7
6059	Boron	μg/l	< 100	< 100
6062	Barium	μg/l	< 10	< 10
6063	Strontium	μg/l	79	78.5
6064	Lithium	μg/l	< 100	< 100
6450	Copper, Dissolved	μg/l	23.3	19.8
6452	Copper	μg/l	25.3	20.9
6455	Zinc	μg/l	231	191
6458	Manganese, Dissolved	μg/l	13.1	< 10
6460	Iron, Dissolved	μg/l	< 30	< 30
6462	Nickel	μg/l	8.62	7.3
6693	Strontium, Filtered	μg/l	78.6	77.5
7044	Ionic Balance	%	-1.79	1.38
7859	Sulphate, Dissolved as SO4	mg/l	20.1	18.9
9446	Barium, Dissolved	μg/l	< 10	< 10
9447	Boron, Dissolved	μg/l	< 100	< 100

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sampling point Porthleven Stream U/S Hope Farm

Determinands

Sampling results

Samples from 15 Aug 2017 to 24 May 2018

Samples from 20 Jun 2017 to 24 Jul 2017

sampling point
Porthleven Stream U/S Hope Farm