sampling point
River Lumburn At Rushford Bridge

Description	RIVER LUMBURN AT RUSHFORD BRIDGE
Sampling point ID	SW-81231764
Type	Freshwater – Rivers
Status	open
Location	easting northing: 244960 76350 lat lon: 50.566274, -4.190548
Area	Devon And Cornwall
Sub-Area	Central Devon And Cornwall
Summary	117 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 117 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 21 Jun 2021 to 27 Aug 2024

Notation	Determinand	Units	21 Jun 2021 13:11	7 Jul 2021 11:04	2 Aug 2021 10:11	24 Sep 2021 12:05	15 Oct 2021 09:52	2 Nov 2021 11:44	8 Dec 2021 13:00	24 Jun 2024 13:27	23 Jul 2024 11:24	27 Aug 2024 10:30
0061	pH		7.48	7.5	7.6	7.48	7.48	7.59	7.03	7.61	7.52	7.91
0076	Temperature of Water	°C	13.1	13.9	13.5	13.6	11.9	11.6	9	15.4	15.4	14.9
0077	Conductivity at 25 C	μs/cm	208	175	210	226	184	164	162	211	200	220
0085	BOD : 5 Day ATU	mg/l								1.3	< 1	< 1
0111	Ammoniacal Nitrogen as N	mg/l	0.086	0.14	0.31	< 0.03	< 0.03	< 0.03	< 0.03	0.042	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	2.8	2.2	2.8	2.7	2.5	2.8	2.7	2.7	2.3	2.4
0117	Nitrate as N	mg/l	2.78	2.18	2.75	2.7	2.5	2.8	2.7	2.69	2.3	2.4
0118	Nitrite as N	mg/l	0.025	0.02	0.052	< 0.004	< 0.004	< 0.004	< 0.004	0.0055	< 0.004	< 0.004
0119	Ammonia un-ionised as N	mg/l	0.0006	0.00109	0.00295	< 0.00022	< 0.00019	< 0.00024	< 6.0e-05	0.00047	< 0.00027	< 0.00064
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	51	41	53	62	43	37	34	55	48	58
0180	Orthophosphate, reactive as P	mg/l	0.061	0.11	0.097	0.029	0.019	0.019	0.017	0.038	0.033	0.027
9901	Oxygen, Dissolved, % Saturation	%	94.2	105	90	96.4	97.6	95.2	98.2	95.6	99.4	100.3
9924	Oxygen, Dissolved as O2	mg/l	9.88	10.8	9.36	10	10.5	10.3	11.3	9.53	9.91	10.1

Samples from 14 Feb 2017 to 9 Mar 2020

Notation	Determinand	Units	14 Feb 2017 10:29	4 Jul 2019 13:17	9 Aug 2019 14:07	12 Sep 2019 11:05	7 Oct 2019 10:33	8 Nov 2019 11:06	12 Dec 2019 09:34	6 Jan 2020 10:22	13 Feb 2020 09:31	9 Mar 2020 10:16
0061	pH		7.33	7.55	7.4	7.58	7.5	7.21	7.08	7.44	7.38	7.3
0076	Temperature of Water	°C	8.5	16.3	16.5	14.8	12.7	10.3	9.7	9.3	7.7	9.3
0077	Conductivity at 25 C	μs/cm	232	233	233	213	175	178	176	197	147	176
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.059	< 0.03	0.064	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	2.98	3.1	1.9	2.2	2.6	3.67	3.2	3.8	1.9	3.3
0117	Nitrate as N	mg/l	2.98	3.09	1.89	2.2	2.6	3.67	3.2	3.8	1.9	3.3
0118	Nitrite as N	mg/l	< 0.004	0.015	0.0062	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004
0119	Ammonia un-ionised as N	mg/l	< 0.00011	0.00031	< 0.00023	< 0.0003	< 0.00021	< 9.0e-05	0.00013	< 0.00014	0.00024	< 0.00011
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	44	63	52	50	36	38	34	43	23	37
0180	Orthophosphate, reactive as P	mg/l	0.025	0.035	0.048	0.026	0.037	0.018	0.029	0.021	0.033	0.024
9901	Oxygen, Dissolved, % Saturation	%	101.9	93.2	90	96.7	96.4	97.6	102	99.6	99.1	98.4
9924	Oxygen, Dissolved as O2	mg/l	11.9	9.12	8.77	9.77	10.2	10.9	11.6	11.4	11.8	11.3

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sampling point River Lumburn At Rushford Bridge

Determinands

Sampling results

Samples from 21 Jun 2021 to 27 Aug 2024

Samples from 14 Feb 2017 to 9 Mar 2020

sampling point
River Lumburn At Rushford Bridge