sampling point
River Claw At Clawton Bridge

Description	RIVER CLAW AT CLAWTON BRIDGE
Sampling point ID	SW-81201143
Type	Freshwater – Rivers
Status	open
Location	easting northing: 235330 99320 lat lon: 50.770029, -4.336638
Area	Devon And Cornwall
Sub-Area	Central Devon And Cornwall
Summary	35 samples taken between 2024 and 2019

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.

13 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
Sld Sus@105C
Temp Water
pH

Displaying the twenty most recent samples. You can see all 35 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 5 Jul 2023 to 3 Jun 2024

Notation	Determinand	Units	5 Jul 2023 11:28	4 Sep 2023 14:03	12 Oct 2023 13:40	3 Nov 2023 11:18	5 Dec 2023 10:28	15 Dec 2023 13:44	17 Jan 2024 12:47	1 Feb 2024 13:03	6 Mar 2024 10:14	3 Jun 2024 10:11
0061	pH		7.47	7.43	7.43	7.1	7.08	7.2	7.35	7.28	7.08	7.95
0076	Temperature of Water	°C	14.3	17.7	15.8	10.3	7	8.6	3	7.9	5.6	14.4
0077	Conductivity at 25 C	μs/cm	210	175	168	154	115	157	180	165	141	197
0111	Ammoniacal Nitrogen as N	mg/l	0.081	0.075	0.034	< 0.03	0.039	0.048	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	1.1	1.8	0.64	1.3	0.46	0.97	0.84	0.58	0.99	1.2
0117	Nitrate as N	mg/l	1.08	1.75	0.636	1.3	0.456	0.966	0.836	0.576	0.986	1.18
0118	Nitrite as N	mg/l	0.019	0.055	0.0042	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	0.024
0119	Ammonia un-ionised as N	mg/l	0.00061	0.00066	0.00026	< 7.0e-05	7.0e-05	0.00013	< 7.0e-05	< 9.0e-05	< 5.0e-05	< 0.00067
0135	Solids, Suspended at 105 C	mg/l	13	5.8	17	21	69	11	11	15	8.5
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	44	38	42	30	22	35	41	35	34	50
0180	Orthophosphate, reactive as P	mg/l	0.043	0.053	0.032	0.025	0.021	< 0.01	0.015	0.014	0.019	0.038
9901	Oxygen, Dissolved, % Saturation	%	94.5	93.9	93.2	91.3	96.6	96.5	98.5	97.8	97.7	97.7
9924	Oxygen, Dissolved as O2	mg/l	9.65	8.92	9.21	10.2	11.7	11.2	13.2	11.6	12.3	9.96

Samples from 12 Oct 2021 to 19 Jun 2023

Notation	Determinand	Units	12 Oct 2021 09:02	2 Nov 2021 11:32	1 Dec 2021 09:40	5 Jan 2022 13:14	4 Feb 2022 08:34	24 Feb 2022 15:29	11 Mar 2022 09:26	28 Apr 2023 12:50	10 May 2023 14:20	19 Jun 2023 13:08
0061	pH		7.17	7.6	7.3	7.8	7.57	7.29	7.62	7.23	7.28	7.47
0076	Temperature of Water	°C	9.6	9.6	8.3	6.2	7.7	6.6	7.8	11.4	12.8	17.6
0077	Conductivity at 25 C	μs/cm	171	124	163	165	182	208	198	135	137	250
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	0.031	< 0.03	0.11	< 0.03	< 0.03	0.11	0.036	0.076
0116	Nitrogen, Total Oxidised as N	mg/l	1.1	0.75	0.61	0.98	0.9	0.48	0.87	0.44	0.69	0.75
0117	Nitrate as N	mg/l	1.1	0.746	0.606	0.976	0.896	0.476	0.866	0.435	0.686	0.737
0118	Nitrite as N	mg/l	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	0.0048	< 0.004	0.013
0119	Ammonia un-ionised as N	mg/l	< 8.0e-05	< 0.00021	0.0001	< 0.00026	0.00064	< 8.0e-05	< 0.0002	0.00038	0.00016	0.00073
0135	Solids, Suspended at 105 C	mg/l	5.5	23	43	< 3	50	23	9.6	9.6	16	< 3
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	40	25	31	36	40	28	40	31	33	72
0180	Orthophosphate, reactive as P	mg/l	0.012	0.02	0.058	0.019	0.071	0.022	0.031	0.022	0.025	0.018
9901	Oxygen, Dissolved, % Saturation	%	94.8	88	94.7	97	98.2	97.4	98.4	98.3	99.6	90.1
9924	Oxygen, Dissolved as O2	mg/l	10.8	10	11.1	12	11.7	11.9	11.7	10.7	10.5	8.58

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sampling point River Claw At Clawton Bridge

Determinands

Sampling results

Samples from 5 Jul 2023 to 3 Jun 2024

Samples from 12 Oct 2021 to 19 Jun 2023

sampling point
River Claw At Clawton Bridge