sampling point
Kennet At Marsh Benham

Description	KENNET AT MARSH BENHAM
Sampling point ID	TH-PKER0050
Type	Freshwater – Unspecified
Status	open
Location	easting northing: 442300 167000 lat lon: 51.400456, -1.393322
Area	West Thames
Sub-Area	L&W South Wt
Summary	63 samples taken between 2024 and 2008

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.

18 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
BOD ATU
CHLOROPHYLL
Chloride Ion
Cond @ 25C
N Oxidised
NATGRIDREF
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Sld Sus@105C
Temp Water
TurbidityNTU
pH

Displaying the twenty most recent samples. You can see all 63 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 7 Aug 2023 to 19 Jul 2024

Notation	Determinand	Units	7 Aug 2023 14:07	1 Sep 2023 10:42	25 Oct 2023 10:17	15 Nov 2023 09:31	5 Dec 2023 08:51	23 Jan 2024 10:37	6 Feb 2024 09:53	8 Mar 2024 13:27	26 Jun 2024 09:11	19 Jul 2024 08:47
0061	pH		8.07	7.85	7.94	7.88	7.88	8.04	7.94	8.16	7.9	7.96
0076	Temperature of Water	°C	15.3	14.3	10.7	9	7.6	7.8	9.8	8.4	16.5	16.1
0077	Conductivity at 25 C	μs/cm	571	590	585	584	582	600	617	613	601	597
0085	BOD : 5 Day ATU	mg/l	< 1	1.2	1.3	1.1	1.3	< 1	< 1	1.4	1.7	1.8
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	0.031	0.031	< 0.03	< 0.03	0.039	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	4.8	5.3	5.5	5.2	5.9	6.4	7.4	6.4	6.2	6
0117	Nitrate as N	mg/l	4.78	5.28	5.48	5.19	5.88	6.38	7.38	6.39	6.18	5.98
0118	Nitrite as N	mg/l	0.019	0.022	0.017	0.012	0.017	0.017	0.016	0.0095	0.024	0.022
0119	Ammonia un-ionised as N	mg/l	< 0.00081	< 0.00053	0.00052	0.0004	< 0.00035	< 0.00047	0.00061	< 0.00049	< 0.0007	< 0.00078
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	240	250	250	250	250	250	270	260	250	250
0180	Orthophosphate, reactive as P	mg/l	0.022	0.017	0.073	0.1	0.09			0.052	0.022	< 0.01
9901	Oxygen, Dissolved, % Saturation	%	115	86.7	86.3	40.1	93.2	93.6	92.6	108.1	83.4	87
9924	Oxygen, Dissolved as O2	mg/l	11.5	8.85	9.56	4.63	11.1	11.1	10.5	12.7	8.12	8.55

Samples from 4 May 2021 to 14 Jul 2023

Notation	Determinand	Units	4 May 2021 08:50	8 Jun 2021 10:41	12 Jul 2021 11:48	12 Aug 2021 14:35	7 Oct 2021 14:03	11 Jan 2022 13:51	10 May 2023 11:41	9 Jun 2023 10:44	28 Jun 2023 12:42	14 Jul 2023 14:15
0061	pH		8.04	8.06	8.06	8.11	8.02	8.07	8.14	8.04	7.94	7.97
0076	Temperature of Water	°C	9.4	15.1	14.6	16.5	12.9	8.6	13.2	15	16	14.9
0077	Conductivity at 25 C	μs/cm	588	590	591	579	578	600	577	599	601	592
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	0.038	< 0.03	< 0.03	0.079	< 0.03	< 0.03	0.044	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	6	5.8	5.6	5.4	5.4	6.2	5.2	6.1	5.6	5.9
0117	Nitrate as N	mg/l	5.98	5.78	5.58	5.38	5.38	6.18	5.19	6.08	5.58	5.88
0118	Nitrite as N	mg/l	0.018	0.021	0.021	0.017	0.016	0.018	0.012	0.019	0.022	0.018
0119	Ammonia un-ionised as N	mg/l	< 0.00052	< 0.00079	0.00097	< 0.00088	< 0.00068	0.0013	< 0.00069	< 0.00079	0.00109	< 0.00073
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	240	250	250	250	250	260	240	260	260	250
0180	Orthophosphate, reactive as P	mg/l	< 0.01	< 0.01	0.027	< 0.01	0.028	0.052	< 0.01	< 0.01	0.017	0.017
9901	Oxygen, Dissolved, % Saturation	%	82.7	104.9	96.5	113.4	95.8	95.1	109.4	99.1	92.2	91
9924	Oxygen, Dissolved as O2	mg/l	9.45	10.5	9.79	11	10.1	11.1	11.4	9.97	9.08	9.17

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sampling point Kennet At Marsh Benham

Determinands

Sampling results

Samples from 7 Aug 2023 to 19 Jul 2024

Samples from 4 May 2021 to 14 Jul 2023

sampling point
Kennet At Marsh Benham