sampling point
River Inny At Davidstow

Description	RIVER INNY AT DAVIDSTOW (FORMERLY INNY U/S DAVIDSTOW CREAMERY)
Sampling point ID	SW-91241191
Type	Freshwater – Rivers
Status	open
Location	easting northing: 215446 87010 lat lon: 50.653457, -4.61217
Area	Devon And Cornwall
Sub-Area	Central Devon And Cornwall
Summary	165 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.

31 determinands have been measured at this site

Action taken
Alky pH 4.5
Ammonia(N)
BOD ATU
Calcium - Ca
Chloride Ion
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
Oil & Grs Vs
Orthophospht
Oxygen Diss
Phosphate
Phosphorus-P
Potassium- K
Sld Sus@105C
Temp Water
TurbidityNTU
Type of Flow
WethPresPrec
Zinc - as Zn
pH

Displaying the twenty most recent samples. You can see all 165 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 21 Nov 2023 to 28 Aug 2024

Notation	Determinand	Units	21 Nov 2023 12:39	12 Dec 2023 10:26	18 Jan 2024 14:01	20 Feb 2024 12:02	22 Mar 2024 12:29	17 Apr 2024 11:58	14 May 2024 14:32	26 Jun 2024 09:43	15 Jul 2024 10:13	28 Aug 2024 12:51
0061	pH		7.06	6.81	7.07	6.9	6.97	6.97	7.02	7.12	7.07	6.95
0076	Temperature of Water	°C	11.2	10.6	8.5	10.6	10.7	10.5	12.1	13.7	12.7	14.6
0077	Conductivity at 25 C	μs/cm	238	275	301	265	281	290	290	450	339	339
0085	BOD : 5 Day ATU	mg/l				< 1	< 1	< 1	1.1	1.1	1.8	< 1
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	0.039	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.043	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	2.1	2.4	2.7	2.5	2.1	2.5	2.2	2.6	2	2
0117	Nitrate as N	mg/l	2.1	2.39	2.7	2.5	2.1	2.5	2.2	2.59	1.99	1.99
0118	Nitrite as N	mg/l	< 0.004	0.006	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	0.0059	0.011	0.0077
0119	Ammonia un-ionised as N	mg/l	< 7.0e-05	5.0e-05	< 6.0e-05	< 5.0e-05	< 5.0e-05	< 5.0e-05	< 7.0e-05	< 0.0001	0.00011	< 7.0e-05
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	39	44	49	42	44	46	47	67	55	62
0180	Orthophosphate, reactive as P	mg/l	0.013	0.022	0.02	0.023	0.021	0.02	0.026	0.03	0.044	0.033
9901	Oxygen, Dissolved, % Saturation	%	97.3	96.7	97	98.6	99.4	97.7	95.5	98.5	94.2	95.3
9924	Oxygen, Dissolved as O2	mg/l	10.7	10.7	11.3	11	11	10.9	10.2	10.2	9.97	9.67

Samples from 6 Oct 2021 to 19 Oct 2023

Notation	Determinand	Units	6 Oct 2021 11:34	2 Nov 2021 11:10	2 Dec 2021 12:07	29 Dec 2021 13:01	27 Apr 2023 13:20	16 Jun 2023 14:14	26 Jul 2023 15:46	17 Aug 2023 13:50	20 Sep 2023 10:22	19 Oct 2023 10:44
0061	pH		7	6.86	6.97	7.07	6.75	7.27	7.17	7.38	7.25	7.64
0076	Temperature of Water	°C	12.3	11.3	9.3	11.1	10.6	15.2	13.6	14.3	14.6	13.1
0077	Conductivity at 25 C	μs/cm	293	281	213	253	201	295	264	425	233	347
0085	BOD : 5 Day ATU	mg/l						< 1
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	0.047	0.14	< 0.03	< 0.03	< 0.03	0.17	0.033
0116	Nitrogen, Total Oxidised as N	mg/l	1.7	2	1.9	1.6	1.3	2.6	1.8	2.1	1.4	2.2
0117	Nitrate as N	mg/l	1.69	2	1.9	1.6	1.29	2.6	1.8	2.1	1.39	2.19
0118	Nitrite as N	mg/l	0.0074	< 0.004	0.0041	0.0045	0.0052	0.0041	< 0.004	< 0.004	0.012	0.0083
0119	Ammonia un-ionised as N	mg/l	< 7.0e-05	< 4.0e-05	< 5.0e-05	0.00011	0.00015	< 0.00015	< 0.00011	< 0.00018	0.00079	0.00033
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	45	46	40	40	39	67	45	53	36	45
0180	Orthophosphate, reactive as P	mg/l	0.028	0.024	0.028	0.052	0.055	0.13	0.025	0.022	0.095	0.033
9901	Oxygen, Dissolved, % Saturation	%	98.8	98.2	96.3	93.5	97.2	90.1	96.4	93.7	94.4	99.7
9924	Oxygen, Dissolved as O2	mg/l	10.6	10.7	11	10.3	10.8	9.02	10	9.57	9.58	10.5

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sampling point River Inny At Davidstow

Determinands

Sampling results

Samples from 21 Nov 2023 to 28 Aug 2024

Samples from 6 Oct 2021 to 19 Oct 2023

sampling point
River Inny At Davidstow