sampling point
Crooked Oak At Ashmill

Description	CROOKED OAK AT ASHMILL
Sampling point ID	SW-73062946
Type	Freshwater – Rivers
Status	open
Location	easting northing: 278360 123380 lat lon: 50.996915, -3.73477
Area	Devon And Cornwall
Sub-Area	East Devon And Cornwall
Summary	77 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 77 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 3 Mar 2006 to 19 Jul 2024

Notation	Determinand	Units	3 Mar 2006 14:00	5 Apr 2006 08:20	28 Apr 2006 11:00	5 Jun 2006 10:15	10 Jul 2006 13:50	19 Sep 2006 08:25	27 Oct 2006 13:25	29 Nov 2006 11:00	13 Jun 2024 10:41	19 Jul 2024 13:11
0061	pH		7.5	7.4	7.8	7.9	7.6	7.2	7.2	7.1	7.85	7.58
0076	Temperature of Water	°C	4	4	10.5	12	16	12.5	10.6	10	10.3	16.2
0077	Conductivity at 25 C	μs/cm									154	154
0085	BOD : 5 Day ATU	mg/l	1.01	< 1	< 1	< 1	< 1	< 1	< 1	< 1	1.2	< 1
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.034	< 0.03	< 0.03	0.064	0.04
0116	Nitrogen, Total Oxidised as N	mg/l	2.11	2.4	1.48	2.25	1.48	0.9	2.69	3.02	0.96	1
0117	Nitrate as N	mg/l	2.11	2.4	1.47	2.25	1.48	0.895	2.69	3.02	0.956	0.996
0118	Nitrite as N	mg/l	< 0.004	< 0.004	0.009	< 0.004	< 0.004	0.0055	< 0.004	< 0.004	0.0044	0.0044
0119	Ammonia un-ionised as N	mg/l	< 0.00011	< 9.0e-05	< 0.00036	< 0.00051	< 0.00034	0.00012	< 9.0e-05	< 7.0e-05	0.00085	0.00044
0162	Alkalinity to pH 4.5 as CaCO3	mg/l									44	40
0180	Orthophosphate, reactive as P	mg/l	< 0.02	< 0.02	< 0.02	< 0.02	0.028	0.035	< 0.02	< 0.02	0.041	0.024
0211	Potassium	mg/l	1.61	1.54	1.74	1.77	3.09
1183	Weather : Precipitation		15	13	1	1	2	1	1	1
3267	Type of flow as description		3	3	3	3	3	1	3	4
3683	Nitrogen, Total Inorganic : (Calculated)	mg/l	2.14	2.43	1.51	2.28	1.51
9901	Oxygen, Dissolved, % Saturation	%	102	84	100	100	97	91	102	99	101.3	99.2
9924	Oxygen, Dissolved as O2	mg/l	13.4	11	11.1	10.8	9.55	9.67	11.3	11.2	11.3	9.72

Samples from 14 Apr 2005 to 13 Feb 2006

Notation	Determinand	Units	14 Apr 2005 13:50	12 May 2005 08:50	21 Jun 2005 14:00	18 Jul 2005 09:40	24 Aug 2005 10:00	29 Sep 2005 13:50	1 Nov 2005 10:55	7 Dec 2005 08:30	17 Jan 2006 10:20	13 Feb 2006 09:15
0061	pH		7.1	7.1	7.6	7.7	7	7.5	7.3	6.9	7.7	7.3
0076	Temperature of Water	°C	9.2	7.5	15.3	14	14	11	11	5	7.5	6.7
0085	BOD : 5 Day ATU	mg/l	2.02	1.33	< 1	< 1	2.29	3.66	1.1	1.29	1.36	1.2
0111	Ammoniacal Nitrogen as N	mg/l	0.043	< 0.03	0.042	< 0.03	0.077	0.036	< 0.03	< 0.03	0.043	0.209
0116	Nitrogen, Total Oxidised as N	mg/l	1.82	1.75	1.66	1.91	1.56	1.5	2.11	2.96	1.57	1.87
0117	Nitrate as N	mg/l	1.81	1.74	1.65	1.91	1.55	1.48	2.11	2.96	1.56	1.86
0118	Nitrite as N	mg/l	0.0087	0.006	0.0076	< 0.004	0.0108	0.0157	< 0.004	< 0.004	0.0053	0.0143
0119	Ammonia un-ionised as N	mg/l	9.0e-05	< 6.0e-05	0.00046	< 0.00037	0.00019	0.00023	< 0.00012	< 3.0e-05	0.00033	0.0006
0180	Orthophosphate, reactive as P	mg/l	0.024	< 0.02	0.044	0.031	0.069	0.084	< 0.02	< 0.02	< 0.02	< 0.02
0211	Potassium	mg/l	2.22	1.78	2.82	2.7	4.52	5.15	2.37	1.9	2.57	2.5
1183	Weather : Precipitation		2	1	1	1	16	2	6	13	2	1
3267	Type of flow as description		3	3	3	2	2	2	4	4	3	3
3683	Nitrogen, Total Inorganic : (Calculated)	mg/l	1.86	1.78	1.7	1.94	1.64	1.54	2.14	2.99	1.61	2.08
9901	Oxygen, Dissolved, % Saturation	%	107	95	103	98	89	101	86	94	97	100
9924	Oxygen, Dissolved as O2	mg/l	12.3	11.4	10.3	10.1	9.15	11.1	9.46	12	11.6	12.2

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sampling point Crooked Oak At Ashmill

Determinands

Sampling results

Samples from 3 Mar 2006 to 19 Jul 2024

Samples from 14 Apr 2005 to 13 Feb 2006

sampling point
Crooked Oak At Ashmill