sampling point
Poltesco River At Poltesco Bridge

Description	POLTESCO RIVER AT POLTESCO BRIDGE
Sampling point ID	SW-81917204
Type	Freshwater – Rivers
Status	open
Location	easting northing: 172440 15680 lat lon: 49.997754, -5.176612
Area	Devon And Cornwall
Sub-Area	West Devon And Cornwall
Summary	30 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.

12 determinands have been measured at this site

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

Displaying the twenty most recent samples. You can see all 30 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 8 Dec 2014 to 31 Mar 2017

Notation	Determinand	Units	8 Dec 2014 13:28	16 Jan 2015 10:51	29 Apr 2015 14:25	2 Jul 2015 12:19	27 Oct 2015 11:26	10 Feb 2016 12:08	16 May 2016 13:00	22 Aug 2016 10:32	8 Dec 2016 14:05	31 Mar 2017 14:46
0061	pH		7.9	7.9	8.5	7.97	8.28	7.9	8.7	8.07	8.14	8.29
0076	Temperature of Water	°C	7.8	6.3	12.1	15.3	12.4	6.1	13.6	16.1	12	12.2
0077	Conductivity at 25 C	μs/cm	509	397	627	674	635	433	624	517	638	529
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	0.06	0.038	1.45	0.083	< 0.03	< 0.03	2.21	3.07
0116	Nitrogen, Total Oxidised as N	mg/l	1.81	2.06	3.7	3.59	2.58	1.54	3.62	3.94	3.08	1.7
0117	Nitrate as N	mg/l	1.81	2.06	3.69	3.57	2.54	1.54	3.61	3.92	3.06	1.68
0118	Nitrite as N	mg/l	< 0.004	< 0.004	0.0118	0.0218	0.0436	0.005	0.0091	0.0201	0.0244	0.0198
0119	Ammonia un-ionised as N	mg/l	< 0.00037	< 0.00033	0.00128	0.00095	0.0315	0.00091	< 0.00071	< 0.00085	0.0467	0.0658
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	143	80	202	226	211	89	205	154	210	175
0180	Orthophosphate, reactive as P	mg/l	0.064	0.06	0.232	0.54	1.09	0.071	0.204	0.287	0.567	1.09
9901	Oxygen, Dissolved, % Saturation	%	98	98.8	103	89.3	98.8	102.9	114	95.6	95.3	89.5
9924	Oxygen, Dissolved as O2	mg/l	11.6	12.2	11	8.92	10.5	12.8	11.8	9.39	10.2	9.58

Samples from 20 Sep 2013 to 24 Sep 2014

Notation	Determinand	Units	20 Sep 2013 13:11	21 Oct 2013 14:51	2 Dec 2013 12:48	6 Dec 2013 12:11	14 Jan 2014 13:21	13 Feb 2014 14:18	10 Mar 2014 13:01	26 Jun 2014 10:29	10 Jul 2014 11:54	24 Sep 2014 13:15
0061	pH		8.2	7.9	8.1	8.3	8	7.9	8.1	8.07		8
0076	Temperature of Water	°C	13	14.4	8.2	7.8	5.6	5.9	10.6	14.8	15.4	14.1
0077	Conductivity at 25 C	μs/cm	540	335	567	596	412	440	542	707		702
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	0.141	< 0.03	< 0.03	0.063	0.613	0.04	2.44		< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	3.31	0.54	2.94	2.86	1.83	0.99	2.55	4.68		3.71
0117	Nitrate as N	mg/l	3.31	0.536	2.94	2.85	1.82	0.984	2.54	4.56		3.71
0118	Nitrite as N	mg/l	< 0.004	< 0.004	< 0.004	0.0052	0.0067	0.0065	0.0108	0.117		< 0.004
0119	Ammonia un-ionised as N	mg/l	< 0.00068	0.00283	< 0.00048	< 0.00047	0.00083	0.00659	0.00076	0.0632		< 0.00074
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	169	79	191	187	104	73	160	224		238
0180	Orthophosphate, reactive as P	mg/l	0.473	0.128	0.076	0.096	0.067	0.133	0.09	0.93		0.75
9901	Oxygen, Dissolved, % Saturation	%	100.6	100	98.5	101	107	103	96		99	107
9924	Oxygen, Dissolved as O2	mg/l	10.6	10.2	11.6	12	13.4	12.8	10.7		9.87	11

Tell us whether you accept cookies

sampling point Poltesco River At Poltesco Bridge

Determinands

Sampling results

Samples from 8 Dec 2014 to 31 Mar 2017

Samples from 20 Sep 2013 to 24 Sep 2014

sampling point
Poltesco River At Poltesco Bridge