sampling point
Porthleven Stream At Penbro

Description	PORTHLEVEN STREAM AT PENBRO
Sampling point ID	SW-82110160
Type	Freshwater – Rivers
Status	open
Location	easting northing: 162830 28250 lat lon: 50.106869, -5.318256
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 12:05	21 Sep 2017 13:05	19 Oct 2017 12:10	14 Nov 2017 12:20	14 Dec 2017 11:30	9 Jan 2018 11:25	15 Feb 2018 10:40	27 Mar 2018 10:20	18 Apr 2018 10:30	24 May 2018 11:05
0050	Lead	μg/l	< 2	< 2	< 2	< 2	2.6	< 2	2.54	2.95	2.08	< 2
0052	Lead, Dissolved	μg/l	0.419	0.204	0.349	0.433	0.448	0.607	0.609	0.596	0.988	0.782
0061	pH		6.82	6.81	6.77	6.74	6.79	6.75	6.65	6.86	6.7	6.76
0076	Temperature of Water	°C	14.5	14	13.6	11.9	9.4		10.5	11.3	12.7	13.5
0077	Conductivity at 25 C	μs/cm	301	297	298	298	305		303	298	299	303
0106	Cadmium, Dissolved	μg/l	2.44	1.99	1.97	2.1	1.53	1.57	1.82	1.68	2.36	2.93
0108	Cadmium	μg/l	2.52	2.13	2.14	2.2	1.61	1.62	1.73	1.78	2.34	2.97
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	0.038	0.076	0.036	0.051	0.067	< 0.03	0.054
0116	Nitrogen, Total Oxidised as N	mg/l	4.07	4.81	5.25	5.14	5.69	7.09	6.66	6.43	6.13	5.27
0118	Nitrite as N	mg/l	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	0.0076	0.0064	< 0.004	< 0.004	< 0.004
0135	Solids, Suspended at 105 C	mg/l	< 3	3.62	3.93	< 3	8.03	3.18	5.1	3.83	17.6	< 3
0158	Hardness, Total as CaCO3	mg/l	69.4	70	74.1	70.7	72.9	77.3	72.8	70.5	70.9	68.5
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	12	20	19	18	25	22	21	22	16	17
0172	Chloride	mg/l	41	38.9	39.4	40.5	40.2	40.9	41.4	40.1	41.5	41.8
0177	Fluoride	mg/l	0.104	0.088	0.094	0.085	0.079	0.087	0.083	0.085	0.086	0.089
0180	Orthophosphate, reactive as P	mg/l	< 0.01	0.011	< 0.01	< 0.01	0.037	< 0.01	< 0.01	0.012	< 0.01	< 0.01
0182	Silica, reactive as SiO2	mg/l	8.39	7.95	7.77	8.23	7.38	7.16	6.72	6.25	7.02	8.17
0183	Sulphate as SO4	mg/l	35.4	32.7	31.9	33.6	29.5	29	27.7	27.4	30.3	34.8
0205	Sodium, Dissolved	mg/l	22.6	21.6	23.4	23	22.5	23.4	22.3	22.2	22.9	22.7
0207	Sodium	mg/l	22.4	22.3	21.8	22.8	23.3	23.4	23	21.8	22.2	23.6
0209	Potassium, Dissolved	mg/l	4.96	4.66	4.95	4.56	5.9	4.9	4.63	4.54	4.2	4.32
0211	Potassium	mg/l	5.01	4.7	5.02	4.57	5.89	4.95	4.63	4.55	4.2	4.44
0235	Magnesium, Dissolved	mg/l	8.36	8.1	8.48	8.25	8.01	7.91	7.56	7.35	7.77	8.08
0237	Magnesium	mg/l	8.35	8.05	8.11	8.17	8.13	7.93	7.56	7.38	7.67	8.22
0239	Calcium, Dissolved	mg/l	14	14.7	15.7	14.7	16	17.9	16.7	16.1	15.6	14.1
0241	Calcium	mg/l	13.9	15	14.5	14.6	16.4	17.8	17.3	16.4	15.1	14.8
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	0.8	1.1	0.85	0.79	1.73	1.19	0.97	1.14	0.73	0.71
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	7.1	7	7	6.9		7.1	6.8	6.8	7.1
3408	Zinc, Dissolved	μg/l	1070	831	798	857	584	539	600	546	788	1100
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	56.8	42.2	39.7	44.8	31.1	25.4	29.5	26.7	39.7	55.3
4201	Lithium, Dissolved	μg/l	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100
6037	Aluminium, Dissolved	μg/l	22.6	21.3	22.9	24.6	29.7	39.6	35.2	38.8	41.3	34.1
6050	Manganese	μg/l	108	80.5	69.3	75	61.8	53.9	58.2	57.1	72.9	111
6051	Iron	μg/l	235	435	226	187	452	213	239	247	165	198
6057	Aluminium	μg/l	51.6	64.4	77.5	71.8	154	95.2	137	123	67.8	76.7
6059	Boron	μg/l	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100
6062	Barium	μg/l	14.9	16.2	16.2	16.8	15.4	16.1	19.5	15.2	15.3	16.8
6063	Strontium	μg/l	82.4	85.8	84.7	86.3	90.3	100	93.6	93.6	88.3	87.5
6064	Lithium	μg/l	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100
6450	Copper, Dissolved	μg/l	44.2	31.9	34.9	38.9	30.1	39.2	41.9	43.3	60.5	62.6
6452	Copper	μg/l	45.8	39.1	39.5	44.2	41.6	43	45.5	54.3	61.7	65
6455	Zinc	μg/l	998	843	783	860	618	543	624	572	749	1050
6458	Manganese, Dissolved	μg/l	110	77.2	72.3	72.7	56.6	50.2	56.1	55	71.7	110
6460	Iron, Dissolved	μg/l	108	81.5	51.3	69.3	105	< 30	46.1	52.7	58.4	72.4
6462	Nickel	μg/l	54.5	44.1	40.3	44.1	30.8	25	29.6	26.8	39.5	55.4
6693	Strontium, Filtered	μg/l	83.4	84.3	89.8	86.4	90.3	99.9	93.4	92.3	89.1	85.2
7044	Ionic Balance	%	1.23	-0.382	-1.23	-1.15	-0.0323	-0.322	-0.661	-2.15	-2	-1.23
7859	Sulphate, Dissolved as SO4	mg/l	34	32.9	33.9	33.7	29.2	29.1	28.1	26.9	30.2	34.2
9446	Barium, Dissolved	μg/l	15.1	15.4	14.5	15.4	14.4	15.9	15.1	14.2	15.4	15.8
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 12:05	24 Jul 2017 12:00
0050	Lead	μg/l	< 2	< 2
0052	Lead, Dissolved	μg/l	0.61	0.491
0061	pH		6.66	6.73
0076	Temperature of Water	°C	16	15
0077	Conductivity at 25 C	μs/cm	297	299
0106	Cadmium, Dissolved	μg/l	2.85	2.61
0108	Cadmium	μg/l	2.94	2.61
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	0.037
0116	Nitrogen, Total Oxidised as N	mg/l	3.97	3.84
0118	Nitrite as N	mg/l	< 0.004	< 0.004
0135	Solids, Suspended at 105 C	mg/l	< 3	< 3
0158	Hardness, Total as CaCO3	mg/l	67.7	68.3
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	15	18
0172	Chloride	mg/l	42.4	41.9
0177	Fluoride	mg/l	0.104	0.093
0180	Orthophosphate, reactive as P	mg/l	< 0.01	< 0.01
0182	Silica, reactive as SiO2	mg/l	8.66	8.34
0183	Sulphate as SO4	mg/l	37.4	36.2
0205	Sodium, Dissolved	mg/l	23.4	22.6
0207	Sodium	mg/l	23	23
0209	Potassium, Dissolved	mg/l	4.73	5.33
0211	Potassium	mg/l	4.7	5.44
0235	Magnesium, Dissolved	mg/l	8.33	8.34
0237	Magnesium	mg/l	8.45	8.32
0239	Calcium, Dissolved	mg/l	13.4	13.6
0241	Calcium	mg/l	13.2	13.8
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	0.58	0.72
3164	Chromium	μg/l	< 0.5	< 0.5
3169	pH : In Situ		7	6.7
3408	Zinc, Dissolved	μg/l	1130	1060
3409	Chromium, Dissolved	μg/l	< 0.5	< 0.5
3410	Nickel, Dissolved	μg/l	63.8	58.5
4201	Lithium, Dissolved	μg/l	< 100	< 100
6037	Aluminium, Dissolved	μg/l	26.8	34.6
6050	Manganese	μg/l	139	128
6051	Iron	μg/l	181	221
6057	Aluminium	μg/l	55.7	46.5
6059	Boron	μg/l	< 100	< 100
6062	Barium	μg/l	15.4	15.4
6063	Strontium	μg/l	79.2	81.7
6064	Lithium	μg/l	< 100	< 100
6450	Copper, Dissolved	μg/l	60.6	48.2
6452	Copper	μg/l	62.3	51.8
6455	Zinc	μg/l	1100	1120
6458	Manganese, Dissolved	μg/l	136	124
6460	Iron, Dissolved	μg/l	79.8	108
6462	Nickel	μg/l	63.1	58.1
6693	Strontium, Filtered	μg/l	79.1	81
7044	Ionic Balance	%	-1.63	-1.09
7859	Sulphate, Dissolved as SO4	mg/l	36.7	36
9446	Barium, Dissolved	μg/l	15	15
9447	Boron, Dissolved	μg/l	< 100	< 100

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sampling point Porthleven Stream At Penbro

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 At Penbro