sampling point
East Dart River At Postbridge

Description	EAST DART RIVER AT POSTBRIDGE
Sampling point ID	SW-70724140
Type	Freshwater – Rivers
Status	open
Location	easting northing: 264822 78935 lat lon: 50.594444, -3.911212
Area	Devon And Cornwall
Sub-Area	Central Devon And Cornwall
Summary	84 samples taken between 2024 and 2000

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.

25 determinands have been measured at this site

Action taken
Alky pH 4.5
Ammonia(N)
BOD ATU
Calcium - Ca
Cond @ 25C
Cu Filtered
Hardness
Hdnss Ca
Hdnss Mg
Magnesium-Mg
N Inorganic
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Potassium- K
Temp Water
Type of Flow
WethPresPrec
Zinc - as Zn
pH

Displaying the twenty most recent samples. You can see all 84 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 23 Jun 2006 to 15 Jul 2024

Notation	Determinand	Units	23 Jun 2006 09:00	11 Jul 2006 09:30	27 Jul 2006 15:15	21 Sep 2006 09:15	19 Oct 2006 08:30	13 Nov 2006 09:15	15 Apr 2024 11:04	17 May 2024 10:03	17 Jun 2024 13:18	15 Jul 2024 09:11
0061	pH		6.3	5.6	7.2	6.5	4.8	5.6	6.4	6.77	6.82	7.62
0076	Temperature of Water	°C	11.2	14.7	20	14.4	13.3	10.7	8.8	11.2	13.6	12.2
0077	Conductivity at 25 C	μs/cm							44	48	46	54
0085	BOD : 5 Day ATU	mg/l	< 1	< 1	< 1	< 1	1.1	< 1	1.2	1	1	< 1
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	< 0.2	< 0.2	< 0.2	< 0.2	< 0.2	< 0.2	< 0.2	0.2	< 0.2	0.28
0117	Nitrate as N	mg/l	< 0.196	< 0.196	< 0.196	< 0.196	< 0.196	< 0.196	< 0.196	0.196	< 0.196	0.276
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	< 1.0e-05	< 1.0e-05	< 0.00019	< 2.0e-05	< 1.0e-05	< 1.0e-05	< 1.0e-05	< 4.0e-05	< 5.0e-05	< 0.00027
0162	Alkalinity to pH 4.5 as CaCO3	mg/l							< 5	6	< 5	6
0180	Orthophosphate, reactive as P	mg/l	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02	< 0.02	< 0.01	< 0.01	< 0.01	< 0.01
0211	Potassium	mg/l	0.43	0.41	0.79
1183	Weather : Precipitation		1	1	1	1	6	5
3267	Type of flow as description		3	3	2	2	3	3
3683	Nitrogen, Total Inorganic : (Calculated)	mg/l	< 0.23	< 0.23	< 0.23
6450	Copper, Dissolved	μg/l	< 1	< 1	< 1	< 1	< 1	< 1
6455	Zinc	μg/l	< 5	< 5	< 5	< 5	6.1	5.2
9901	Oxygen, Dissolved, % Saturation	%	105	99	103	100	96	98	99.8	105.3	101.4	98.6
9924	Oxygen, Dissolved as O2	mg/l	11.5	10	9.34	10.2	10	10.9	11.6	11.5	10.5	10.6

Samples from 25 Aug 2005 to 20 Apr 2006

Notation	Determinand	Units	25 Aug 2005 08:30	28 Oct 2005 15:00	23 Nov 2005 08:15	6 Dec 2005 08:35	16 Jan 2006 08:15	25 Jan 2006 08:45	27 Feb 2006 08:45	21 Mar 2006 09:00	6 Apr 2006 09:20	20 Apr 2006 08:45
0061	pH		6.5	4.8	7	6.6	5.9	5.4	5.9	6.7	5.2	6.1
0076	Temperature of Water	°C	12	12.2	6.9	7.4	6.8	3.7	3.4	4.1	5	8.8
0085	BOD : 5 Day ATU	mg/l	1.12	< 1	1.05	< 1	1.11	2.01	1.36	< 1	1.3	< 1
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	< 0.2	< 0.2	0.51	0.47	0.33	0.26	0.35	0.28	0.24	< 0.2
0117	Nitrate as N	mg/l	< 0.196	< 0.196	0.506	0.466	0.326	0.256	0.346	0.276	0.236	< 0.196
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	< 2.0e-05	< 1.0e-05	< 4.0e-05	< 2.0e-05	< 1.0e-05	< 1.0e-05	< 1.0e-05	< 2.0e-05	< 1.0e-05	< 1.0e-05
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
0211	Potassium	mg/l	0.55	0.7	0.93	0.87	1.46	0.64	0.65	0.64	0.59	0.62
1183	Weather : Precipitation		1	2	1	2	2	1	1	1	1	2
3267	Type of flow as description		2	3	3	3	3	1	3	3	3	3
3683	Nitrogen, Total Inorganic : (Calculated)	mg/l	< 0.23	< 0.23	0.54	0.5	0.36	0.29	0.38	0.31	0.27	< 0.23
6450	Copper, Dissolved	μg/l	< 1	1	< 1	< 1	1.4	< 1	< 1	< 1	< 1	< 1
6455	Zinc	μg/l	9.3	< 5	5.1	< 5	5.8	< 5	< 5	< 5	< 5	< 5
9901	Oxygen, Dissolved, % Saturation	%	103	95	93.4	88.2	92.1	90	99	99	99	102
9924	Oxygen, Dissolved as O2	mg/l	11.1	10.2	11.4	10.6	11.2	11.9	13.2	12.9	12.6	11.8

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sampling point East Dart River At Postbridge

Determinands

Sampling results

Samples from 23 Jun 2006 to 15 Jul 2024

Samples from 25 Aug 2005 to 20 Apr 2006

sampling point
East Dart River At Postbridge