sampling point
River Taw At Umberleigh

Description	RIVER TAW AT UMBERLEIGH
Sampling point ID	SW-73020163
Type	Freshwater – Rivers
Status	open
Location	easting northing: 260799 123682 lat lon: 50.995646, -3.984985
Area	Devon And Cornwall
Sub-Area	East Devon And Cornwall
Summary	110 samples taken between 2017 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.

28 determinands have been measured at this site

Action taken
Alky pH 4.5
Ammonia(N)
BOD ATU
Calcium - Ca
Cond @ 25C
Cu Filtered
Dtrgt NncSyn
DtrgtAncSyn
GCMS S-Vol
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 110 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 20 Nov 2014 to 10 Feb 2017

Notation	Determinand	Units	20 Nov 2014 11:47	18 Mar 2015 12:06	16 Jun 2015 11:35	2 Sep 2015 10:51	25 Nov 2015 11:39	12 Jan 2016 09:44	25 Apr 2016 13:47	15 Jul 2016 10:33	19 Oct 2016 13:29	10 Feb 2017 10:52
0061	pH		7.5	7.7	8	7.75	7.7	7.56	9.2	7.9	8.2	7.6
0076	Temperature of Water	°C	10.6	7	15.8	12.7	9.6	7.4	11	15.9	10.8	7
0077	Conductivity at 25 C	μs/cm	166	176	183	166	164	167	196	200	189	180
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.047	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	2.91	2.53	1.66	2.33	2.13	3.01	1.49	1.47	1.69	3.56
0117	Nitrate as N	mg/l	2.9	2.52	1.65	2.33	2.12	3	1.48	1.47	1.69	3.55
0118	Nitrite as N	mg/l	0.0071	0.0068	0.0097	0.0041	0.008	0.0094	0.0066	0.005	0.0042	0.0073
0119	Ammonia un-ionised as N	mg/l	< 0.00018	< 0.00022	< 0.00084	< 0.00038	< 0.00027	0.00026	< 0.00059	< 0.00067	< 0.00058	< 0.00018
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	33	37	44	35	36	34	47	46	48	32
0180	Orthophosphate, reactive as P	mg/l	0.036	0.031	0.057	0.043	0.034	0.032	< 0.01	0.036	0.05	0.024
9901	Oxygen, Dissolved, % Saturation	%	98	101	101	96.3	98	91.8	125	101	111	97
9924	Oxygen, Dissolved as O2	mg/l	10.9	12.2	9.99	10.2	11.1	11	13.8	9.96	12.3	11.8

Samples from 30 Jul 2013 to 28 Aug 2014

Notation	Determinand	Units	30 Jul 2013 12:40	19 Sep 2013 14:04	21 Oct 2013 13:08	7 Nov 2013 11:50	21 Nov 2013 12:10	15 Jan 2014 11:03	10 Feb 2014 10:31	11 Mar 2014 10:35	1 May 2014 10:50	28 Aug 2014 11:09
0061	pH		8.16	7.9	7.72	7.97	7.6	7.59	7.51	7.81	7.71	7.6
0076	Temperature of Water	°C	19.8	13.8	13.1	11.3	7.1	7.7	6.3	8.3	12.6	15.5
0077	Conductivity at 25 C	μs/cm	285	226	188	140	170	149	159	167	177	199
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.048	0.038	< 0.03	< 0.03	0.051
0116	Nitrogen, Total Oxidised as N	mg/l	0.83	1.6	2.6	2.56	2.33	2.31	2.66	2.33	1.67	2.59
0117	Nitrate as N	mg/l	0.812	1.59	2.59	2.56	2.32	2.3	2.65	2.32	1.66	2.57
0118	Nitrite as N	mg/l	0.0179	0.0064	0.009	0.0044	0.0087	0.0098	0.0065	0.0081	0.0096	0.0162
0119	Ammonia un-ionised as N	mg/l	< 0.00111	< 0.00058	< 0.00036	< 0.00056	< 0.00018	0.00029	0.00017	< 0.00031	< 0.00034	0.00056
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	66	42	35	22	34	29	26	32	42	40
0180	Orthophosphate, reactive as P	mg/l	0.06	0.131	0.059	0.031	0.039	0.032	0.025	0.027	0.039	0.075
9901	Oxygen, Dissolved, % Saturation	%	96	94	97	100	96.5	99	95.9	97	91.5	99
9924	Oxygen, Dissolved as O2	mg/l	8.74	9.71	10.2	10.9	11.7	11.8	11.8	11.4	9.71	9.85

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sampling point River Taw At Umberleigh

Determinands

Sampling results

Samples from 20 Nov 2014 to 10 Feb 2017

Samples from 30 Jul 2013 to 28 Aug 2014

sampling point
River Taw At Umberleigh