sampling point
River Cober At St Johns Bridge

Description	RIVER COBER AT ST JOHNS BRIDGE
Sampling point ID	SW-82010152
Type	Freshwater – Rivers
Status	open
Location	easting northing: 165456 27604 lat lon: 50.102112, -5.281198
Area	Devon And Cornwall
Sub-Area	West Devon And Cornwall
Summary	73 samples taken between 2020 and 2013

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.

57 determinands have been measured at this site

Al- Filtered
Alky pH 4.5
Aluminium-Al
Ammonia(N)
Arsenic - As
As-Filtered
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
Hardness
IonicBalance
Iron - as Fe
K- Filtered
Lead - as Pb
Lithium - Li
Lithium Filt
Magnesium-Mg
Manganse-Mn
Mg Filtered
Mn- Filtered
N Oxidised
NH3 un-ion
Na- Filtered
Ni- Filtered
Nickel - Ni
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Pb Filtered
Phosphorus-P
Potassium- K
SO4dis
SiO2 Rv
Sld Sus@105C
Sodium - Na
Strontium-Sr
StrontumFilt
Sulphate SO4
Temp Water
Zinc - as Zn
Zn- Filtered
pH

Displaying the twenty most recent samples. You can see all 73 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 20 May 2019 to 13 Mar 2020

Notation	Determinand	Units	20 May 2019 11:11	13 Jun 2019 12:22	16 Jul 2019 15:37	8 Aug 2019 11:10	17 Sep 2019 14:24	16 Oct 2019 11:16	16 Dec 2019 11:10	15 Jan 2020 11:22	6 Feb 2020 10:19	13 Mar 2020 14:01
0061	pH		7.1	7	7.27	7.15	7.1	7.04	7.16	7.08	7.03	7.2
0076	Temperature of Water	°C	12.3	12.1	16.5	15.4	15.2	12.4	8.8	9.4	9	10
0077	Conductivity at 25 C	μs/cm	187	186	179	185	181	166	187	178	184	183
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.042	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	4.29	3.71	3.7	3.4	3.1	3	4.2	3.6	4.5	4.1
0117	Nitrate as N	mg/l	4.29	3.71	3.7	3.4	3.1	3	4.2	3.6	4.5	4.1
0118	Nitrite as N	mg/l	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	0.0046	< 0.004	< 0.004
0119	Ammonia un-ionised as N	mg/l	< 8.0e-05	< 7.0e-05	< 0.00017	< 0.00012	< 0.0001	< 7.0e-05	< 7.0e-05	9.0e-05	< 6.0e-05	< 9.0e-05
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	10	14	12	16	14	14	12	13	10	12
0180	Orthophosphate, reactive as P	mg/l	< 0.01	0.013	0.015	0.015	0.011	0.021	< 0.01	0.014	0.012	< 0.01
0348	Phosphorus, Total as P	mg/l	0.0166	0.0281	0.08	0.013	0.021	0.039	0.018	0.037	0.02	0.015
9901	Oxygen, Dissolved, % Saturation	%	100	97.1	100.1	100	100	90.3	102	100	100	100.4
9924	Oxygen, Dissolved as O2	mg/l	10.7	10.4	9.75	9.97	10	9.62	11.8	11.4	11.5	11.3

Samples from 28 Sep 2018 to 8 Apr 2019

Notation	Determinand	Units	28 Sep 2018 11:01	28 Sep 2018 11:02	25 Oct 2018 10:31	26 Oct 2018 11:57	15 Nov 2018 11:27	3 Dec 2018 11:41	18 Jan 2019 10:41	4 Feb 2019 10:29	1 Mar 2019 14:54	8 Apr 2019 12:51
0061	pH		7.1	7.1	7.01	6.87	6.92	6.84	7.04	7	7.07	7.01
0076	Temperature of Water	°C	12.4	12.4	10.8	11	11.8	11.8	8.7	8.8	10.7	11.3
0077	Conductivity at 25 C	μs/cm	191	189	183	191	183	179	188	164	187	191
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.041	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	3.35	3.32	3.18	3.13	3.66	3.47	4.55	2.85	4.57	4.54
0117	Nitrate as N	mg/l	3.35	3.32	3.18	3.13	3.66	3.47	4.55	2.85	4.57	4.54
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
0119	Ammonia un-ionised as N	mg/l	< 8.0e-05	< 8.0e-05	< 6.0e-05	< 4.0e-05	< 5.0e-05	< 4.0e-05	< 6.0e-05	7.0e-05	< 7.0e-05	< 6.0e-05
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	15	15	14	17	13	13	11	12	11	11
0180	Orthophosphate, reactive as P	mg/l	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	0.017	< 0.01	0.022	< 0.01	< 0.01
0348	Phosphorus, Total as P	mg/l	0.0196		0.0233		0.0257	0.0393	0.0358	0.107	0.0186	0.027
9901	Oxygen, Dissolved, % Saturation	%	96	96	97.5	95.7	97.3	99	99.3	99	97	100
9924	Oxygen, Dissolved as O2	mg/l	10.2	10.2	10.8	10.5	10.5	10.7	11.5	11.5	10.7	10.9

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sampling point River Cober At St Johns Bridge

Determinands

Sampling results

Samples from 20 May 2019 to 13 Mar 2020

Samples from 28 Sep 2018 to 8 Apr 2019

sampling point
River Cober At St Johns Bridge