sampling point
River Exe At Halfpenny Bridge

Description	RIVER EXE AT HALFPENNY BRIDGE
Sampling point ID	SW-70550265
Type	Freshwater – Rivers
Status	open
Location	easting northing: 295239 120538 lat lon: 50.974692, -3.493514
Area	Devon And Cornwall
Sub-Area	East Devon And Cornwall
Summary	154 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
C - Org Filt
Calcium - Ca
Colour Filt
Cond @ 25C
Cu Filtered
Cypermethrin
Diazinon
Hardness
Hdnss Ca
Hdnss Mg
Magnesium-Mg
N Inorganic
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
OrthophsFilt
Oxygen Diss
Phosphorus-P
Potassium- K
Temp Water
Type of Flow
WethPresPrec
Zinc - as Zn
pH

Displaying the twenty most recent samples. You can see all 154 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 29 Jun 2023 to 12 Mar 2024

Notation	Determinand	Units	29 Jun 2023 11:21	12 Jul 2023 09:37	11 Aug 2023 11:07	12 Sep 2023 12:33	3 Oct 2023 12:01	1 Nov 2023 09:22	5 Dec 2023 15:33	2 Jan 2024 10:12	2 Feb 2024 09:45	12 Mar 2024 11:19
0061	pH		8.22	7.72	7.55	7.68	7.34	7.72	7.41	7.29	7.57	7.5
0076	Temperature of Water	°C	17.4	15.5	16.4	16.9	13.3	11	7.6	10	7.3	8.8
0077	Conductivity at 25 C	μs/cm	129	120	97	107	96	98	105	93	105	84
0111	Ammoniacal Nitrogen as N	mg/l	0.06	0.044	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.059	0.033
0116	Nitrogen, Total Oxidised as N	mg/l	1.3	1.1	0.78	0.86	0.79	1	1.1	1.1	1.1	0.71
0117	Nitrate as N	mg/l	1.27	1.08	0.773	0.846	0.785	0.996	1.1	1.1	1.1	0.706
0118	Nitrite as N	mg/l	0.034	0.023	0.0067	0.014	0.0046	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004
0119	Ammonia un-ionised as N	mg/l	0.00188	0.00064	< 0.00032	< 0.00044	< 0.00016	< 0.00031	< 0.00012	< 0.00011	0.00033	0.00018
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	32	31	21	27	24	24	24	17	25	22
0180	Orthophosphate, reactive as P	mg/l	0.037	0.033	0.019	0.021	0.016	0.018	0.026	0.015	0.016	0.02
9901	Oxygen, Dissolved, % Saturation	%	99.4	98.1	100.1	103	99.2	98.5	98.5	99.6	97.2	98
9924	Oxygen, Dissolved as O2	mg/l	9.5	9.76	9.77	9.95	10.4	10.8	11.8	11.2	11.7	11.4

Samples from 26 Aug 2022 to 8 Jun 2023

Notation	Determinand	Units	26 Aug 2022 10:10	15 Sep 2022 13:23	18 Oct 2022 11:01	3 Nov 2022 12:07	6 Dec 2022 09:51	26 Jan 2023 11:19	13 Feb 2023 12:02	13 Mar 2023 08:45	12 May 2023 09:34	8 Jun 2023 15:42
0061	pH		7.98	7.91	7.48	7.47	7.48	7.46	7.7	7.4	7.43	8.2
0076	Temperature of Water	°C	16.1	15.5	10	11.2	7	5.5	6.5	9.3	10.5	18.1
0077	Conductivity at 25 C	μs/cm	128	125	115	106	108	108	110	94	103	119
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	0.042	< 0.03	0.041	< 0.03	< 0.03	0.035
0116	Nitrogen, Total Oxidised as N	mg/l	1	0.88	0.73	1.2	1.3	1.4	1.1	1.2	0.93	1.1
0117	Nitrate as N	mg/l	0.975	0.865	0.722	1.2	1.3	1.4	1.09	1.2	0.926	1.08
0118	Nitrite as N	mg/l	0.025	0.015	0.008	< 0.004	< 0.004	< 0.004	0.0063	< 0.004	0.0043	0.025
0119	Ammonia un-ionised as N	mg/l	< 0.00082	< 0.00067	< 0.00017	< 0.00018	0.00019	< 0.00011	0.00029	< 0.00013	< 0.00015	0.00115
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	33	31	29	14	24	21	23	16	22	31
0180	Orthophosphate, reactive as P	mg/l	0.038	0.028	0.021	0.016	0.017	0.012	0.015	< 0.01	0.013	0.022
9901	Oxygen, Dissolved, % Saturation	%	102.1	107.3	98.8	98.7	86	101	100	98	98.8	109.5
9924	Oxygen, Dissolved as O2	mg/l	10	10.7	11.1	10.8	10.4	12.7	12.3	11.2	11	10.3

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sampling point River Exe At Halfpenny Bridge

Determinands

Sampling results

Samples from 29 Jun 2023 to 12 Mar 2024

Samples from 26 Aug 2022 to 8 Jun 2023

sampling point
River Exe At Halfpenny Bridge