sampling point
River Claw At Claw Bridge

Description	RIVER CLAW AT CLAW BRIDGE
Sampling point ID	SW-81201166
Type	Freshwater – Rivers
Status	open
Location	easting northing: 237442 100704 lat lon: 50.783061, -4.307325
Area	Devon And Cornwall
Sub-Area	Central Devon And Cornwall
Summary	67 samples taken between 2020 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.

26 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
Sld Sus@105C
Temp Water
Type of Flow
WethPresPrec
Zinc - as Zn
pH

Displaying the twenty most recent samples. You can see all 67 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 16 Jul 2019 to 12 Mar 2020

Notation	Determinand	Units	16 Jul 2019 14:14	6 Aug 2019 12:47	9 Sep 2019 11:32	20 Sep 2019 11:29	15 Oct 2019 12:10	15 Nov 2019 08:07	11 Dec 2019 12:04	6 Jan 2020 11:57	18 Feb 2020 13:38	12 Mar 2020 12:22
0061	pH		7.52	7.69		7.49	7.52	7.37	7.4	7.4	7.7	7.4
0076	Temperature of Water	°C	14.5	15.4		11.9	11.7	6.3	6.6	7.8	7.2	7
0077	Conductivity at 25 C	μs/cm	250	245		222	147	141	150	168	151	92
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	0.05	< 0.03	< 0.03	< 0.03	< 0.03	0.12	< 0.03	0.054	0.059
0116	Nitrogen, Total Oxidised as N	mg/l	0.77	0.76	0.71	0.78	1.2	0.86	0.58	0.93	0.7	0.65
0117	Nitrate as N	mg/l	0.764	0.756	0.694	0.776	1.2	0.856	0.575	0.926	0.695	0.643
0118	Nitrite as N	mg/l	0.0059	< 0.004	0.016	< 0.004	< 0.004	< 0.004	0.0052	< 0.004	0.0055	0.0073
0119	Ammonia un-ionised as N	mg/l	< 0.00026	0.00067		< 0.0002	< 0.00021	< 0.0001	0.00043	< 0.00012	0.0004	0.00022
0135	Solids, Suspended at 105 C	mg/l	3.2	8.1	11	3.8	11	8.6	58	7.7	9.9	18
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	76	66	60	63	33	27	30	37	26	30
0180	Orthophosphate, reactive as P	mg/l	0.025	0.043	0.038	0.028	0.041	0.049	0.036	0.027	0.027	0.02
9901	Oxygen, Dissolved, % Saturation	%	64.5	72.8		72.3	95.8	89.7	97	97	99	96
9924	Oxygen, Dissolved as O2	mg/l	6.56	7.26		7.79	10.4	11.1	11.9	11.5	11.9	11.6

Samples from 1 Apr 2004 to 4 Jun 2019

Notation	Determinand	Units	1 Apr 2004 13:05	29 Apr 2004 12:05	17 May 2004 11:55	28 Jun 2004 12:05	27 Jul 2004 13:10	18 Aug 2004 12:45	23 Sep 2004 11:30	21 Oct 2004 12:20	29 Nov 2004 14:15	4 Jun 2019 11:53
0061	pH		7.45	7.58	7.45	7.33	7.91	7.24	7.28	7.83	7.65
0076	Temperature of Water	°C	10.1	9.8	13.4	14.1	15.3	17.34	14.1	10.5	6.7
0085	BOD : 5 Day ATU	mg/l	1.1	1.4	1.2	2.1	1.2	4.2	1.2	2.3	1.6
0111	Ammoniacal Nitrogen as N	mg/l	0.035	0.03	< 0.03	< 0.03	0.066	0.083	< 0.03	0.094	0.052	0.119
0116	Nitrogen, Total Oxidised as N	mg/l	1.53	1.6	1.4	0.77	0.64	1.66	1.51	1.26	1.75	0.65
0117	Nitrate as N	mg/l	1.52	1.59	1.39	0.765	0.632	1.65	1.51	1.25	1.74	0.634
0118	Nitrite as N	mg/l	< 0.008	< 0.008	< 0.008	0.005	0.008	0.0057	< 0.004	0.0055	0.0077	0.0158
0119	Ammonia un-ionised as N	mg/l	0.00018	0.00021	< 0.0002	< 0.00016	0.00145	0.00046	< 0.00014	0.00121	0.00034
0135	Solids, Suspended at 105 C	mg/l										7.45
0162	Alkalinity to pH 4.5 as CaCO3	mg/l										69
0180	Orthophosphate, reactive as P	mg/l	0.03	0.03	0.04	0.023	0.041	0.058	0.032	0.046	0.034	0.026
0211	Potassium	mg/l	2.42	2.34	2.63	5.28	4.77	4.3	4.19	4.24	3.8
1183	Weather : Precipitation		1	2	1	1	2	2	2	2	1
3267	Type of flow as description		3	2	2	2	2	5	3	3	4
3683	Nitrogen, Total Inorganic : (Calculated)	mg/l	1.57	1.63	1.43	0.8	0.706	1.74	1.54	1.35	1.8
6450	Copper, Dissolved	μg/l	< 2.5			< 2.5			2.8
6455	Zinc	μg/l	< 5			< 5			6
9901	Oxygen, Dissolved, % Saturation	%	96	93	97	91	90	94	90	93	100
9924	Oxygen, Dissolved as O2	mg/l	10.8	10.5	10.1	9.33	8.99	9	9.23	10.4	12.2

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sampling point River Claw At Claw Bridge

Determinands

Sampling results

Samples from 16 Jul 2019 to 12 Mar 2020

Samples from 1 Apr 2004 to 4 Jun 2019

sampling point
River Claw At Claw Bridge