sampling point
Northwood Brook At Trenant Bridge

Description	NORTHWOOD BROOK AT TRENANT BRIDGE
Sampling point ID	SW-81523205
Type	Freshwater – Rivers
Status	open
Location	easting northing: 220980 68290 lat lon: 50.487003, -4.524953
Area	Devon And Cornwall
Sub-Area	West Devon And Cornwall
Summary	25 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 25 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 25 Nov 2014 to 7 Mar 2017

Notation	Determinand	Units	25 Nov 2014 15:16	8 Jan 2015 11:07	15 Apr 2015 13:05	8 Jul 2015 12:52	2 Oct 2015 13:09	27 Jan 2016 11:41	4 May 2016 11:25	26 Aug 2016 10:42	18 Nov 2016 14:24	7 Mar 2017 14:43
0061	pH		6.9	6.7	7.1	7.24	6.87	6.44	7.58	7.6	6	7.15
0076	Temperature of Water	°C	8.9	8.8	13.1	13.2	11.3	10.5	10.1	13.1	8.8	8.5
0077	Conductivity at 25 C	μs/cm	88	59	81	84	83	74	84	84	83	83
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	1.01	0.53	0.85	0.87	0.85	0.9	0.84	0.79	0.66	0.97
0117	Nitrate as N	mg/l	1.01	0.526	0.846	0.866	0.846	0.896	0.836	0.786	0.656	0.966
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	< 4.0e-05	< 3.0e-05	< 9.0e-05	< 0.00012	< 5.0e-05	< 2.0e-05	< 0.00021	< 0.00028	< 1.0e-05	< 7.0e-05
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	8	6	7	8	7	6	6	8	7	7
0180	Orthophosphate, reactive as P	mg/l	< 0.01	< 0.01	< 0.01	0.023	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01
9901	Oxygen, Dissolved, % Saturation	%	105.2	97.2	100	97.1	102.2	99.6	102.2	99.4	99	99.3
9924	Oxygen, Dissolved as O2	mg/l	12.2	11.3	10.5	10.2	11.2	11.1	11.5	10.4	11.5	11.6

Samples from 28 Aug 2013 to 5 Sep 2014

Notation	Determinand	Units	28 Aug 2013 10:07	27 Sep 2013 11:27	23 Oct 2013 12:44	8 Nov 2013 12:49	9 Dec 2013 15:11	6 Jan 2014 12:05	18 Feb 2014 13:20	6 Mar 2014 14:36	5 Jun 2014 14:55	5 Sep 2014 12:23
0061	pH		7.2	7.48	7.2	7.5	7.01	7	7.4	6.9	6.9	7.9
0076	Temperature of Water	°C	13.4	13.7	12.3	10.1	8.6	9.6	9.8	9.3	12.7	14.4
0077	Conductivity at 25 C	μs/cm	74	86	79	83	85.5	84	91	85	82.3	85
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	0.83	0.88	0.83	1.03	1.11	1.21	1.09	0.99	0.75	0.78
0117	Nitrate as N	mg/l	0.826	0.876	0.826	1.03	1.11	1.21	1.09	0.986	0.746	0.776
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	< 0.00011	< 0.00022	< 0.0001	< 0.00018	< 5.0e-05	< 5.0e-05	< 0.00014	< 4.0e-05	< 5.0e-05	< 0.0006
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	9	6	6	8	7	7	8	7	6	7
0180	Orthophosphate, reactive as P	mg/l	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02
9901	Oxygen, Dissolved, % Saturation	%	98.9	102.7	101.1	101.6	99	99.8	101.9	101.8	99.9	105.7
9924	Oxygen, Dissolved as O2	mg/l	10.3	10.6	10.8	11.4	11.5	11.4	11.5	11.7	10.6	10.8

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sampling point Northwood Brook At Trenant Bridge

Determinands

Sampling results

Samples from 25 Nov 2014 to 7 Mar 2017

Samples from 28 Aug 2013 to 5 Sep 2014

sampling point
Northwood Brook At Trenant Bridge