sampling point
Porthcothan Stream At Porthcothan Roadbr

Description	PORTHCOTHAN STREAM AT PORTHCOTHAN ROADBRIDGE
Sampling point ID	SW-82511704
Type	Freshwater – Rivers
Status	open
Location	easting northing: 185940 72080 lat lon: 50.509284, -5.020406
Area	Devon And Cornwall
Sub-Area	West Devon And Cornwall
Summary	53 samples taken between 2017 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.

15 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
BOD ATU
Cond @ 25C
N Oxidised
NATGRIDREF
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Sld Sus@105C
Temp Water
pH

Displaying the twenty most recent samples. You can see all 53 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 1 Apr 2016 to 18 Apr 2017

Notation	Determinand	Units	1 Apr 2016 11:27	5 May 2016 09:48	20 Jun 2016 11:14	3 Aug 2016 11:39	7 Sep 2016 09:22	3 Oct 2016 09:43	1 Dec 2016 11:30	6 Jan 2017 09:34	7 Mar 2017 15:03	18 Apr 2017 11:17
0061	pH		7.86	7.91	7.44	7.52	7.82	7.56	7.57	7.82	7.73	8
0076	Temperature of Water	°C	8.4	9.4	14.5	16.2	16.3	11.3	7.2	7.9	9.3	10.1
0077	Conductivity at 25 C	μs/cm	470	400	320	428	405	525	426	428	458	396
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	0.079	0.065	< 0.03	< 0.03	< 0.03	0.051	0.108	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	7.64	7.15	3.21	4.68	4.45	5.89	9.71	8.52	7.89	7.86
0117	Nitrate as N	mg/l	7.63	7.14	3.19	4.67	4.44	5.88	9.7	8.51	7.86	7.85
0118	Nitrite as N	mg/l	0.0077	0.006	0.0209	0.0146	0.0114	0.0059	0.0057	0.0145	0.0303	0.01
0119	Ammonia un-ionised as N	mg/l	< 0.00035	< 0.00043	0.00056	0.00063	< 0.00058	< 0.00022	< 0.00017	0.00053	0.00101	< 0.00055
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	83	70	58	75	77	75	64	75	80	68
0180	Orthophosphate, reactive as P	mg/l	0.034	0.029	0.204	0.117	0.081	0.058	0.03	0.042	0.079	0.03
9901	Oxygen, Dissolved, % Saturation	%	97.5	97.5	94	88.4	92.5	97.5	98.4	97.5	96.5	95.5
9924	Oxygen, Dissolved as O2	mg/l	11.4	11.1	9.56	8.67	9.05	10.7	11.9	11.6	11.1	10.7

Samples from 4 Jun 2015 to 29 Jan 2016

Notation	Determinand	Units	4 Jun 2015 09:49	16 Jun 2015 11:40	28 Jul 2015 12:40	14 Aug 2015 14:34	3 Sep 2015 10:06	7 Oct 2015 12:39	10 Nov 2015 10:26	1 Dec 2015 12:12	8 Jan 2016 11:12	29 Jan 2016 09:01
0061	pH		7.86		7.81	7.74	7.74	7.75	7.63	7.61	7.6	7.76
0076	Temperature of Water	°C	10.2		14	15.8	12.7	12.2	12.8	11.8	9.6	10.1
0077	Conductivity at 25 C	μs/cm	678		571	503	560	516	455	466	427	430
0085	BOD : 5 Day ATU	mg/l		< 1
0111	Ammoniacal Nitrogen as N	mg/l	0.073	0.03	< 0.03	0.04	< 0.03	< 0.03	< 0.03	0.051	0.035	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	5.03		5.08	3.88	7.66	6.1	8.06	8.24	9.16	8.78
0117	Nitrate as N	mg/l	5.02		5.07	3.86	7.66	6.1	8.05	8.22	9.15	8.77
0118	Nitrite as N	mg/l	0.0093		0.007	0.0178	0.005	0.0045	0.0101	0.0241	0.0116	0.0081
0119	Ammonia un-ionised as N	mg/l	0.00098		< 0.00048	0.00062	< 0.00037	< 0.00036	< 0.00029	0.00044	0.00025	< 0.00032
0135	Solids, Suspended at 105 C	mg/l		5.15
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	76		80	75	66	71	80	76	74	77
0180	Orthophosphate, reactive as P	mg/l	0.065	0.058	0.073	0.149	0.036	0.047	0.036	0.057	0.037	0.016
9901	Oxygen, Dissolved, % Saturation	%	100		99.5	98.5	98.5	95	94.5	92.7	96.2	96.5
9924	Oxygen, Dissolved as O2	mg/l	11.2		10.2	9.74	10.4	10.2	9.98	10	10.9	10.8

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sampling point Porthcothan Stream At Porthcothan Roadbr

Determinands

Sampling results

Samples from 1 Apr 2016 to 18 Apr 2017

Samples from 4 Jun 2015 to 29 Jan 2016

sampling point
Porthcothan Stream At Porthcothan Roadbr