sampling point
River Dun Above Froxfield Stream

Description	RIVER DUN ABOVE FROXFIELD STREAM
Sampling point ID	TH-PKER0280
Type	Freshwater – Unspecified
Status	open
Location	easting northing: 429925 167199 lat lon: 51.403031, -1.571189
Area	West Thames
Sub-Area	L&W South Wt
Summary	79 samples taken between 2024 and 2011

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.

13 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
BOD ATU
Cond @ 25C
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Temp Water
pH

Displaying the twenty most recent samples. You can see all 79 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 10 Aug 2023 to 5 Jul 2024

Notation	Determinand	Units	10 Aug 2023 08:05	6 Sep 2023 07:40	20 Oct 2023 09:11	6 Nov 2023 16:23	5 Dec 2023 11:33	24 Jan 2024 09:16	15 Feb 2024 08:03	4 Mar 2024 08:21	7 Jun 2024 08:02	5 Jul 2024 08:12
0061	pH		7.67	7.55	7.63	7.72	7.74	7.59	7.79	7.89	7.84	7.74
0076	Temperature of Water	°C	13	12.8	12.2	9.6	8.3	9.3	10.6	7.2	11.2	12.3
0077	Conductivity at 25 C	μs/cm	596	591	552	575	593	613	605	584	603	592
0085	BOD : 5 Day ATU	mg/l	1.1	1	1.5	< 1	1.1	1.8	1.5	1.1	1.4	< 3
0111	Ammoniacal Nitrogen as N	mg/l	0.042	< 0.03	0.24	< 0.03	< 0.03	0.058	< 0.03	0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	5	4.8	4.6	4.6	5.4	5.7	6	5.7	5.4	5.2
0117	Nitrate as N	mg/l	4.98	4.79	4.56	4.59	5.38	5.68	5.99	5.69	5.38	5.18
0118	Nitrite as N	mg/l	0.017	0.011	0.041	0.014	0.016	0.022	0.01	0.0078	0.016	0.017
0119	Ammonia un-ionised as N	mg/l	0.00045	< 0.00024	0.00222	< 0.00028	< 0.00027	0.0004	< 0.00036	0.00035	< 0.00042	< 0.00036
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	250	260	230	220	250	260	260	250	260	260
0180	Orthophosphate, reactive as P	mg/l	0.053	0.031	0.1	0.21	0.14	0.096	0.11	0.14	0.053	0.04
9901	Oxygen, Dissolved, % Saturation	%	82.1	76.9	78.8	84.7	88.8	94.1	90.3	94.7	89.4	84.5
9924	Oxygen, Dissolved as O2	mg/l	8.63	8.12	8.43	9.63	10.4	10.8	10	11.4	9.79	9.02

Samples from 12 Oct 2016 to 20 Jul 2023

Notation	Determinand	Units	12 Oct 2016 12:06	8 Dec 2016 11:06	13 Dec 2016 16:31	31 Jan 2017 09:59	3 Mar 2017 10:00	3 Apr 2017 11:45	10 May 2023 12:43	9 Jun 2023 11:25	3 Jul 2023 12:02	20 Jul 2023 12:38
0061	pH		7.95	7.94	7.98	7.78	7.85	7.94	8.06	7.36	7.74	7.78
0076	Temperature of Water	°C	10.8	10.3	7.6	8.6	8.1	9.6	13.2	13.8	13	13.5
0077	Conductivity at 25 C	μs/cm	601	613	358	603	610	600	601	597	599	597
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	0.033	0.087	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	5.24	5.97	6.34	5.75	5.81	5.46	4.7	4.9	4.9	4.6
0117	Nitrate as N	mg/l	5.23	5.95	6.29	5.74	5.8	5.45	4.69	4.89	4.87	4.58
0118	Nitrite as N	mg/l	0.0127	0.018	0.0482	0.0112	0.0053	0.006	0.01	0.015	0.027	0.023
0119	Ammonia un-ionised as N	mg/l	< 0.00052	0.00054	0.00127	< 0.0003	< 0.00034	< 0.00046	< 0.00069	< 0.00017	< 0.00038	< 0.00043
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	250	256	256	256	259	262	250	250	270	250
0180	Orthophosphate, reactive as P	mg/l	0.04	0.05	0.087	0.049	0.056	0.04	0.045	0.036	0.051	0.057
9901	Oxygen, Dissolved, % Saturation	%	80.8	83.6	76.4	87.8	92.1	104.3	109.2	96.8	91.2	88.2
9924	Oxygen, Dissolved as O2	mg/l	8.93	9.35	9.12	10.2	10.9	11.9	11.4	10	9.59	9.17

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sampling point River Dun Above Froxfield Stream

Determinands

Sampling results

Samples from 10 Aug 2023 to 5 Jul 2024

Samples from 12 Oct 2016 to 20 Jul 2023

sampling point
River Dun Above Froxfield Stream