sampling point
River Tamar D/S River Deer Confluence

Description	RIVER TAMAR BELOW CONFLUENCE WITH RIVER DEER
Sampling point ID	SW-91210127
Type	Freshwater – Rivers
Status	open
Location	easting northing: 231918 97257 lat lon: 50.750514, -4.384038
Area	Devon And Cornwall
Sub-Area	Central Devon And Cornwall
Summary	153 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.

33 determinands have been measured at this site

Action taken
Alky pH 4.5
Ammonia(N)
BOD ATU
BOD5DyATUFil
Calcium - Ca
Chlorophyl-A
Cond @ 20C
Cond @ 25C
Cu Filtered
Hardness
Hdnss Ca
Hdnss Mg
Magnesium-Mg
N Digested
N Inorganic
N Oxidised
N-Kjeldahl
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Phosphorus-P
Potassium- K
SiO2 Rv
Sld Sus@105C
Temp Water
Type of Flow
WethPresPrec
Zinc - as Zn
pH

Displaying the twenty most recent samples. You can see all 153 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 13 May 2016 to 22 Mar 2017

Notation	Determinand	Units	13 May 2016 13:11	6 Jun 2016 11:47	20 Jul 2016 11:00	21 Oct 2016 13:55	31 Oct 2016 11:16	23 Nov 2016 10:26	29 Nov 2016 13:29	7 Feb 2017 13:40	28 Feb 2017 13:40	22 Mar 2017 12:56
0061	pH		8.05	7.77	7.54	7.64	8.12	7.21	7.41	7.25	7.42	7.36
0076	Temperature of Water	°C	16.2	17.5	19	9.5	11.3	7.9	4.6	6.7	5.7	7.4
0077	Conductivity at 25 C	μs/cm	239	256	234	227	246	187	217	182	171	153
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	0.035	0.037	< 0.03	< 0.03	0.06	0.033	0.132	0.199	0.256
0116	Nitrogen, Total Oxidised as N	mg/l	1.19	1.32	1.9	1.65	1.52	2.41	2.71	1.91	1.22	1.11
0117	Nitrate as N	mg/l	1.18	1.31	1.89	1.64	1.52	2.4	2.7	1.89	1.21	1.1
0118	Nitrite as N	mg/l	0.0077	0.0101	0.0063	0.0063	0.0045	0.0094	0.0126	0.0181	0.0129	0.0135
0119	Ammonia un-ionised as N	mg/l	< 0.00086	0.00066	0.00046	< 0.00023	< 0.0006	0.00015	0.0001	0.00034	0.0007	0.00089
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	61	68	58	51	61	38	44	39	42	40
0180	Orthophosphate, reactive as P	mg/l	0.113	0.123	0.121	0.099	0.117	0.08	0.1	0.082	0.07	0.066
9901	Oxygen, Dissolved, % Saturation	%	97.5	97.8	85.9	97	93.2	85.4	94.2	98.5	98.5	100
9924	Oxygen, Dissolved as O2	mg/l	9.56	9.33	7.95	11.1	10.2	10.1	12.1	12	12.3	12

Samples from 27 Jul 2015 to 18 Apr 2016

Notation	Determinand	Units	27 Jul 2015 12:52	12 Aug 2015 11:19	11 Sep 2015 14:32	5 Oct 2015 11:12	9 Nov 2015 11:23	25 Nov 2015 11:23	13 Jan 2016 11:22	3 Feb 2016 10:24	11 Mar 2016 10:42	18 Apr 2016 12:10
0061	pH		7.58	7.81	7.76	7.56	7.38	7.28	7.16	7.32	7.27	7.48
0076	Temperature of Water	°C	14.4	16	14.7	12.7	11.8	9.7	6.2	6.6	6.4	7.4
0077	Conductivity at 25 C	μs/cm	181	231	225	221	201	192	201	211	213	248
0111	Ammoniacal Nitrogen as N	mg/l	0.102	< 0.03	< 0.03	< 0.03	0.043	0.133	0.167	0.212	0.067	0.097
0116	Nitrogen, Total Oxidised as N	mg/l	1.43	1.79	2.02	2.12	2.22	1.47	2.38	1.83	2.11	1.8
0117	Nitrate as N	mg/l	1.41	1.77	2.01	2.12	2.21	1.45	2.35	1.8	2.09	1.76
0118	Nitrite as N	mg/l	0.0187	0.0155	0.0056	< 0.004	0.0131	0.0184	0.0258	0.0277	0.0178	0.0351
0119	Ammonia un-ionised as N	mg/l	0.00099	< 0.00055	< 0.00045	< 0.00025	0.00022	0.00046	0.00034	0.00064	0.00018	0.00045
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	37	50	52	50	43	44	43	47	41	58
0180	Orthophosphate, reactive as P	mg/l	0.12	0.116	0.095	0.071	0.065	0.082	0.078	0.073	0.044	0.058
9901	Oxygen, Dissolved, % Saturation	%	90.2	99.6	112	98.1	88.7	91.7	97	93.5	95.3	90.4
9924	Oxygen, Dissolved as O2	mg/l	9.19	9.81	11.3	10.4	9.58	10.4	12	11.4	11.7	10.8

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sampling point River Tamar D/S River Deer Confluence

Determinands

Sampling results

Samples from 13 May 2016 to 22 Mar 2017

Samples from 27 Jul 2015 to 18 Apr 2016

sampling point
River Tamar D/S River Deer Confluence