sampling point
Thames At Somerford Keynes Roadbridge

Description	THAMES AT SOMERFORD KEYNES ROADBRIDGE
Sampling point ID	TH-PUTR0104
Type	Freshwater – Rivers
Status	open
Location	easting northing: 401857 194765 lat lon: 51.651668, -1.974549
Area	West Thames
Sub-Area	L&W North Wt
Summary	266 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.

40 determinands have been measured at this site

Action taken
Alky pH 4.5
Ammonia(N)
B-[a]-pyrene
B-[b]-fluora
B-[ghi]-pery
B-[k]-fluora
BOD ATU
CHLOR A
CHLOROPHYLL
COD as O2
Chloride Ion
Cond @ 20C
Cond @ 25C
Fluoranthene
Ind123pyrene
N Oxidised
NH3 un-ion
NO FLOW/SAMP
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
OrthophsFilt
Oxygen Diss
PBDE 100
PBDE 153
PBDE 154
PBDE 28
PBDE 47
PBDE 99
Phosphorus-P
SI-GQA
SiO2 Rv
Sld Sus@105C
Temp Water
TurbidityNTU
Type of Flow
pH
pH in-situ

Displaying the twenty most recent samples. You can see all 266 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 4 Sep 2023 to 1 Aug 2024

Notation	Determinand	Units	4 Sep 2023 11:09	20 Oct 2023 15:49	27 Nov 2023 10:49	14 Dec 2023 08:01	15 Jan 2024 09:03	23 Feb 2024 12:15	16 Apr 2024 10:59	13 May 2024 15:04	18 Jul 2024 09:04	1 Aug 2024 10:42
0061	pH		7.86	7.69	7.7	7.71	7.76	7.87	7.81	7.99	7.95	7.93
0076	Temperature of Water	°C	14.4	12.9	9.9	8.2	7.3	8.4	10.2	12.3	14.1	16.8
0077	Conductivity at 25 C	μs/cm	581	547	599	592	597	575	596	596	585	570
0085	BOD : 5 Day ATU	mg/l						< 1	< 1	< 1	1.3	< 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	3.9	5.3	9.4	9.3	9.9	8.5	8.4	6.9	5	5
0117	Nitrate as N	mg/l	3.89	5.29	9.39	9.29	9.89	8.5	8.4	6.9	4.99	4.99
0118	Nitrite as N	mg/l	0.0094	0.014	0.007	0.0059	0.0069	< 0.004	< 0.004	0.0048	0.011	0.013
0119	Ammonia un-ionised as N	mg/l	< 0.00055	< 0.00034	< 0.00027	< 0.00025	0.00026	< 0.00036	< 0.00036	< 0.00063	< 0.00066	< 0.00077
0135	Solids, Suspended at 105 C	mg/l	< 3	13	< 3	5.6	6.6	5.5			< 3	< 3
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	250	230	250	240	250	180	240	250	260	260
0180	Orthophosphate, reactive as P	mg/l	< 0.01	0.081	0.011	0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01
6396	Turbidity	ntu	< 1	12	< 1	1.3	2	2.6			< 1	< 1
7887	Chlorophyll : Acetone Extract	μg/l	2.3	2.6	0.7	1	0.66	< 0.5			1.1	1.9
9901	Oxygen, Dissolved, % Saturation	%	81.5	81.6	93.4	90.2	95.1	98.4	103.1	100.7	88.4	89.2
9924	Oxygen, Dissolved as O2	mg/l	8.3	8.6	10.5	10.6	11.4	11.5	11.6	10.8	9.07	8.63

Samples from 25 Nov 2022 to 11 Aug 2023

Notation	Determinand	Units	25 Nov 2022 14:14	9 Dec 2022 09:19	26 Jan 2023 10:01	16 Feb 2023 11:28	14 Mar 2023 10:02	5 Apr 2023 10:24	22 May 2023 11:37	19 Jun 2023 12:31	28 Jul 2023 13:21	11 Aug 2023 10:31
0061	pH		7.96	7.87	7.92	8.09	8.04	7.85	7.9	7.88	7.86	7.76
0076	Temperature of Water	°C	10.2	6.9	7.9	9.7	7.4	9.3	11.3	14.3	15.3	15.3
0077	Conductivity at 25 C	μs/cm	616	606	589	584	568	582	586	584	577	580
0085	BOD : 5 Day ATU	mg/l								< 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	9.2	11	10	8.9	6.4	9.1	7.6	5.7	4.2	4.2
0117	Nitrate as N	mg/l	9.2	11	10	8.9	6.4	9.1	7.59	5.68	4.18	4.18
0118	Nitrite as N	mg/l	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	0.0048	0.01	0.016	0.021	0.018
0119	Ammonia un-ionised as N	mg/l	< 0.00051	< 0.00032	< 0.00039	< 0.00054	< 0.00045	< 0.00037	< 0.00048	< 0.00057	< 0.00059	< 0.00047
0135	Solids, Suspended at 105 C	mg/l	3.1	< 3	4.1	5	6.1	6.6	5	< 3	3.5	< 3
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	240	240	230	230	240	230	240	240	250	250
0180	Orthophosphate, reactive as P	mg/l	0.014	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01
6396	Turbidity	ntu					3.2		< 1	< 1		< 1
7887	Chlorophyll : Acetone Extract	μg/l	0.56	< 0.5	< 0.5	1.6	1.8	1.9	5.7	1.8	3.1	2.8
9901	Oxygen, Dissolved, % Saturation	%	94.4	91.8	97	106.7	100.2	98.3	107.1	97.6	98.7	76.8
9924	Oxygen, Dissolved as O2	mg/l	10.6	11.2	11.5	12.1	12	11.3	11.7	9.97	9.86	7.67

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sampling point Thames At Somerford Keynes Roadbridge

Determinands

Sampling results

Samples from 4 Sep 2023 to 1 Aug 2024

Samples from 25 Nov 2022 to 11 Aug 2023

sampling point
Thames At Somerford Keynes Roadbridge