sampling point
River Inny At St. Clether Bridge

Description	RIVER INNY AT ST. CLETHER BRIDGE
Sampling point ID	SW-91241162
Type	Freshwater – Rivers
Status	open
Location	easting northing: 220578 84143 lat lon: 50.629305, -4.538257
Area	Devon And Cornwall
Sub-Area	Central Devon And Cornwall
Summary	232 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.

35 determinands have been measured at this site

Action taken
Alky pH 4.5
Ammonia(N)
BOD ATU
Calcium - Ca
Chloride Ion
Cond @ 20C
Cond @ 25C
Cu Filtered
Hardness
Hdnss Ca
Hdnss Mg
K- Filtered
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
SALinsitu
Sld Sus@105C
Sodium - Na
Temp Water
TurbidityNTU
Type of Flow
WethPresPrec
Zinc - as Zn
pH

Displaying the twenty most recent samples. You can see all 232 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 19 Oct 2023 to 1 Jul 2024

Notation	Determinand	Units	19 Oct 2023 12:21	1 Nov 2023 10:53	8 Dec 2023 10:03	12 Jan 2024 11:59	13 Feb 2024 12:09	11 Mar 2024 10:57	9 Apr 2024 11:41	14 May 2024 12:15	5 Jun 2024 14:26	1 Jul 2024 12:32
0061	pH		7.81	7.72	7.39	7.78	7.57	7.87	7.46	8.12	8.41	8.18
0076	Temperature of Water	°C	13.7	11.9	10.2	8.2	10	9.7	9.5	12.4	14.7	14.4
0077	Conductivity at 25 C	μs/cm	640	470	350	570	450	560	350	890	1600	2000
0085	BOD : 5 Day ATU	mg/l	1.2	1	< 1	< 1	1.1	< 1	1.8	< 1	< 1	< 1
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	2.3	1.9	2.3	2.4	2.4	2.2	1.8	2.1	2.5	2.6
0117	Nitrate as N	mg/l	2.3	1.9	2.3	2.4	2.4	2.2	1.8	2.1	2.5	2.59
0118	Nitrite as N	mg/l	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	0.0047	0.0052
0119	Ammonia un-ionised as N	mg/l	< 0.00047	< 0.00033	< 0.00014	< 0.00029	< 0.00021	< 0.0004	< 0.00015	< 0.00065	< 0.00077	< 0.00075
0135	Solids, Suspended at 105 C	mg/l	4.7	25	6.5	10	7.4	4.5	15	6	4.8	5.1
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	56	40	48	63	53	73	42	74	140	160
0172	Chloride	mg/l	120	77	55	96	78	97	56	170	320	410
0180	Orthophosphate, reactive as P	mg/l	0.019	0.031	0.014	0.018	0.017	0.02	0.019	0.011	0.021	0.03
0192	Phosphate :- {TIP}	mg/l	0.03	0.075	0.029	0.03	0.029	0.021	0.05	0.024	0.03	0.035
0207	Sodium	mg/l	75	59	39	68	52	71	38	120	230	280
0209	Potassium, Dissolved	mg/l	24	17	11	22	16	20	12	40	79	100
0211	Potassium	mg/l	24	17	11	20	16	19	12	41	79	100
0348	Phosphorus, Total as P	mg/l	0.04	0.09	0.038	0.036	0.038	0.035	0.041	0.024	0.042	0.042
1183	Weather : Precipitation		2	3	6	1	5	1	6	3	1	1
3683	Nitrogen, Total Inorganic : (Calculated)	mg/l	2.33	1.93	2.33	2.43	2.43	2.23	1.83	2.13	2.53	2.63
6396	Turbidity	ntu	2	9.3	3.3	3	2.5	< 1	4.8	1.5	1.8	1
9901	Oxygen, Dissolved, % Saturation	%	98.6	98.6	97.7	99.6	99.3	102	101.7	104.6	101.2	100.1
9924	Oxygen, Dissolved as O2	mg/l	10.2	10.6	10.9	11.7	11.2	11.6	11.6	11.1	10.2	10.2

Samples from 24 Jan 2023 to 26 Sep 2023

Notation	Determinand	Units	24 Jan 2023 13:05	7 Feb 2023 12:12	14 Mar 2023 14:27	3 Apr 2023 12:09	22 May 2023 11:51	22 May 2023 11:54	8 Jun 2023 15:14	5 Jul 2023 10:56	30 Aug 2023 15:27	26 Sep 2023 15:16
0061	pH		7.91	8.17	7.71		8.43		8.55	8.18	7.74	7.95
0076	Temperature of Water	°C	7.7	6.7	9.6		12.8		17.5	14	14.5	15.4
0077	Conductivity at 25 C	μs/cm			440		1400		1900	2300	440	590
0085	BOD : 5 Day ATU	mg/l	1.1	1.4	< 1		1.2		< 1	1.2	< 1	< 3
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03		< 0.03		< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	2.4	2.3	2.2		2.1		1.9	2	2.2	2.4
0117	Nitrate as N	mg/l	2.4	2.3	2.2		2.08		1.9	1.94	2.13	2.4
0118	Nitrite as N	mg/l	< 0.004	< 0.004	< 0.004		0.019		0.0041	0.062	0.069	< 0.004
0119	Ammonia un-ionised as N	mg/l	< 0.00038	< 0.00043	< 0.00027		< 0.00067		< 0.00094	< 0.00073	< 0.00042	< 0.00073
0135	Solids, Suspended at 105 C	mg/l	6.3	12	6.7		7.6		9	3.3	3.1	3.6
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	79	120	50		160		220	250	63	67
0172	Chloride	mg/l	120	200	75		260		390	460	72	100
0180	Orthophosphate, reactive as P	mg/l	0.015	0.015	< 0.01		0.014		0.038	0.025	0.022	0.023
0192	Phosphate :- {TIP}	mg/l	0.029	0.021	0.029		0.025		0.058	0.067	0.027	0.031
0207	Sodium	mg/l	89	140	53	59		190	290	370	51	72
0209	Potassium, Dissolved	mg/l	25	50	15	17		59	85	97	13	22
0211	Potassium	mg/l	26	50	15	17		59	84	94	13	23
0348	Phosphorus, Total as P	mg/l	0.028	0.03	0.036		0.042		0.071	0.11	0.036	0.032
1183	Weather : Precipitation		13	1	1		1		1	4	1	1
3683	Nitrogen, Total Inorganic : (Calculated)	mg/l	2.43	2.33	2.23		2.13		1.93	2.03	2.23	2.43
6396	Turbidity	ntu			2.1		1.8		1.2	2.7	1	2.2
9901	Oxygen, Dissolved, % Saturation	%	99.8	103.2	100.5		106.8		104.8	101.4	100	99
9924	Oxygen, Dissolved as O2	mg/l	11.9	12.6	11.4		11.2		9.96	10.4	10.2	9.86

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sampling point River Inny At St. Clether Bridge

Determinands

Sampling results

Samples from 19 Oct 2023 to 1 Jul 2024

Samples from 24 Jan 2023 to 26 Sep 2023

sampling point
River Inny At St. Clether Bridge