sampling point
Thames At Marlow Weir

Description	THAMES AT MARLOW WEIR
Sampling point ID	TH-PTHR0091
Type	Freshwater – Unspecified
Status	open
Location	easting northing: 485210 186172 lat lon: 51.567987, -0.771988
Area	West Thames
Sub-Area	L&W North Wt
Summary	241 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.

97 determinands have been measured at this site

1234678HpCDD
1234678HpCDF
123478-HxCDD
1234789HpCDF
123478HxCDF
123678-HxCDD
123678HxCDF
123789-HxCDD
123789HxCDF
12378PeCDD
12378PeCDF
234678HxCDF
23478PeCDF
2378-TCDD
2378-TCDF
Action taken
Alky pH 4.5
Ammonia(N)
BOD ATU
C - Org Filt
CHLOR A
CHLOROPHYLL
Ca Filtered
Cadmium - Cd
Cd Filtered
Chloride Ion
Chlorophyl-A
Chromium -Cr
ColfmF Conf
ColformsPre
Copper - Cu
Cr- Filtered
Cu Filtered
Dry Matter %
F Coli Pre
GCMS Semi-Q
HBCDD
HBCDD TOT WW
Hg - Dry Wt
Hg - wet wt
Hg Filtered
Lead - as Pb
Lipid tot ww
N Oxidised
NH3 un-ion
Ni- Filtered
Nickel - Ni
Nitrate-N
Nitrite-N
O Diss %sat
OCDD
OCDF WW
Orthophospht
Oxygen Diss
PBDE 100
PBDE 100 WW
PBDE 153
PBDE 153 WW
PBDE 154
PBDE 154 WW
PBDE 28
PBDE 28 WW
PBDE 47
PBDE 47 WW
PBDE 99
PBDE 99 WW
PCB 081
PCB 105 WWt
PCB 114
PCB 118 WWt
PCB 123
PCB 126 WW
PCB 156 WWt
PCB 157 WW
PCB 167 WW
PCB 169 WW
PCB 189 WW
PCB 77 WW
PFOA WW
PFOS
PFOS WW
Pb Filtered
SI-GQA
Sample Prep
StrepF PMF
Temp Water
Tot Coli CMF
Type of Flow
WHOTEQ Low B
Zinc - as Zn
Zn- Filtered
a -HBCDD WW
b -HBCDD WW
g -HBCDD WW
pFoctanoate
pH
pH in-situ

Displaying the twenty most recent samples. You can see all 241 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 10 Mar 2020 to 6 Mar 2024

Notation	Determinand	Units	10 Mar 2020 14:59	10 Jul 2023 09:22	1 Aug 2023 08:53	5 Sep 2023 08:38	2 Oct 2023 09:12	3 Nov 2023 11:50	1 Dec 2023 12:04	17 Jan 2024 10:48	1 Feb 2024 10:47	6 Mar 2024 11:29
0061	pH		8.18
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	4.3
9248	Hexabromocyclododecane Total: (Sum of a, b, g)	μg/l	< 0.0002
9274	Perfluorooctanoate anion	μg/l			0.0025	0.0022	0.0034	0.0023	0.0017	0.0013	0.0013	0.0015
9276	Perfluorooctylsulphonate anion	μg/l		0.006	0.0058	0.0044	0.0061	0.0077	0.0043	0.0035	0.0034	0.0036

Samples from 12 Sep 2019 to 10 Feb 2020

Notation	Determinand	Units	12 Sep 2019 05:05	12 Sep 2019 05:15	12 Sep 2019 05:30	12 Sep 2019 05:40	12 Sep 2019 05:50	28 Oct 2019 13:12	27 Nov 2019 11:53	12 Dec 2019 12:14	16 Jan 2020 13:52	10 Feb 2020 12:28
0061	pH							8.09	8.13	8.27	7.93	8.28
0103	Mercury, Dissolved	μg/l						< 0.01	< 0.01	< 0.01	0.01	< 0.01
0239	Calcium, Dissolved	mg/l						110	100	110	87	110
0270	Mercury : Dry Wt	mg/kg	0.053	0.06	0.079	0.075	0.077
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l						4.6	5.7	8.6	6.6	3.4
3153	PCB - 118 : Wet Wt	μg/kg	4.37	6.55	6.62	6.15	5.43
3182	PCB - 189 : Wet Wt	μg/kg	0.0305	0.0456	0.0585	0.045	0.0435
3183	PCB - 167 : Wet Wt	μg/kg	0.221	0.36	0.414	0.342	0.343
3185	PCB - 157 : Wet Wt	μg/kg	0.122	0.173	0.202	0.172	0.174
3186	2,3,4,6,7,8-Hexachlorodibenzofuran : Wet Wt	μg/kg	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001
3188	PCB - 123 : Wet Wt	μg/kg	0.071	0.0897	0.13	0.125	0.118
3189	PCB - 114 : Wet Wt	μg/kg	0.0731	0.105	0.112	0.103	0.0948
3190	PCB - 081 : Wet Wt	μg/kg	0.0115	0.0121	0.0113	0.0119	0.0146
3191	Octachlorodibenzo-p-dioxin : Wet Wt	μg/kg	< 0.0001	0.00083	< 0.0001	0.00058	0.00075
3192	Octachlorodibenzofuran : Wet Wt	μg/kg	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001
3193	2,3,7,8-Tetrachlorodibenzo-p-dioxin : Wet Wt	μg/kg	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001
3194	2,3,7,8-Tetrachlorodibenzofuran : Wet Wt	μg/kg	0.003	0.003	0.00226	0.00343	0.00382
3195	2,3,4,7,8-Pentachlorodibenzofuran : Wet Wt	μg/kg	< 0.0001	0.00037	0.00023	0.00047	0.00026
3196	1,2,3,7,8-Pentachlorodibenzo-p-dioxin : Wet Wt	μg/kg	< 0.0001	< 0.0001	< 0.0001	< 0.0001	0.00013
3197	1,2,3,7,8-Pentachlorodibenzofuran : Wet Wt	μg/kg	< 0.0001	0.00017	0.00015	< 0.0001	0.00017
3198	1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin : Wet Wt	μg/kg	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001
3199	1,2,3,7,8,9-Hexachlorodibenzofuran : Wet Wt	μg/kg	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001
3200	1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin : Wet Wt	μg/kg	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001
3202	1,2,3,6,7,8-Hexachlorodibenzofuran : Wet Wt	μg/kg	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001
3205	1,2,3,4,7,8-Hexachlorodibenzo-p-dioxin : Wet Wt	μg/kg	0.0002	< 0.0001	< 0.0001	< 0.0001	< 0.0001
3246	1,2,3,4,7,8-Hexachlorodibenzofuran : Wet Wt	μg/kg	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001
3254	1,2,3,4,7,8,9-Heptachlorodibenzofuran : Wet Wt	μg/kg	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001
3255	1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin : Wet Wt	μg/kg	0.00011	< 0.0001	0.00021	< 0.0001	0.0003
3256	1,2,3,4,6,7,8-Heptachlorodibenzofuran : Wet Wt	μg/kg	< 0.0001	0.00024	< 0.0001	0.00016	0.00014
3375	Perfluorooctylsulphonate anion : Wet Wt	μg/kg	12	11	13	12	14
3376	Perfluorooctanoic acid : Wet Wt	μg/kg	< 1	< 1	< 1	< 1	< 1
3378	Hexabromocyclododecane TOTAL : (Sum of a, b, g) : Wet Wt	μg/kg	< 5	< 5	< 5	< 5	< 5
3379	Hexabromocyclododecane -gamma : Wet Wt	μg/kg	< 5	< 5	< 5	< 5	< 5
3383	Hexabromocyclododecane -beta : Wet Wt	μg/kg	< 5	< 5	< 5	< 5	< 5
3384	Hexabromocyclododecane -alpha : Wet Wt	μg/kg	< 5	< 5	< 5	< 5	< 5
3385	Dioxins and Furans - WHOTEQ Lower Bound	μg/kg	0.00218	0.00256	0.00237	0.00269	0.00325
3398	2,4,4 Tribromodiphenyl ether : Wet Wt	μg/kg	0.076	0.099	0.16	0.031	0.029
3407	2,2,4,4,6 Pentabromodiphenyl Ether: Wet Wt	μg/kg	0.21	0.36	0.43	0.077	0.075
3412	2,2,4,4,5,6 Hexabromodiphenyl Ether: Wet Wt	μg/kg	0.21	0.35	0.46	0.076	0.074
3414	2,2,4,4,5,5 Hexabromodiphenyl Ether: Wet Wt	μg/kg	0.07	0.061	0.25	< 0.02	< 0.02
3415	2,2,4,4,5 Pentabromodiphenyl Ether: Wet Wt	μg/kg	0.024	< 0.02	0.071	< 0.02	< 0.02
3419	2,2,4,4 Tetrabromodiphenyl ether : Wet Wt	μg/kg	1.4	2.1	3.3	0.54	0.5
3740	PCB - 156 : Wet Wt	μg/kg	0.464	0.705	0.807	0.654	0.727
3744	PCB - 105 : Wet Wt	μg/kg	1.55	2.03	1.94	1.86	1.5
4621	2,4,4-TriBromoDiphenylEther	μg/l						< 6.0e-05	< 6.0e-05	< 6.0e-05	< 6.0e-05
8394	Sample Preparation	text	1	1	1	1	1
8648	Mercury : Wet Wt	μg/kg	16.2	18.3	21.6	20	23
8680	Lipids : Total : Wet Wt	%	2.92	5.14	2.97	2.75	2.88
8905	PCB - 077 : Wet Wt	μg/kg	0.262	0.308	0.262	0.304	0.367
8906	PCB - 126 : Wet Wt	μg/kg	0.0159	0.0174	0.0171	0.0185	0.0229
8907	PCB - 169 : Wet Wt	μg/kg	0.00103	0.00111	0.00051	0.00126	0.00155
9011	2,2,4,4,5,5-Hexabromodiphenyl ether :- {PBDE 153}	μg/l						< 6.0e-05	< 6.0e-05	< 6.0e-05	< 6.0e-05
9013	2,2,4,4,5,6-Hexabromodiphenyl ether :- {PBDE 154}	μg/l						< 6.0e-05	< 6.0e-05	< 6.0e-05	< 6.0e-05
9015	2,2,4,4,5-Pentabromodiphenyl ether :- {PBDE 99}	μg/l						< 6.0e-05	< 6.0e-05	< 6.0e-05	< 6.0e-05
9017	2,2,4,4,6-Pentabromodiphenyl ether :- {PBDE 100}	μg/l						< 6.0e-05	< 6.0e-05	< 6.0e-05	< 6.0e-05
9019	2,2,4,4-Tetrabromodiphenyl ether :- {PBDE 47}	μg/l						< 6.0e-05	< 6.0e-05	< 6.0e-05	< 6.0e-05
9248	Hexabromocyclododecane Total: (Sum of a, b, g)	μg/l						< 0.0002	< 0.0002	< 0.0002	< 0.0002	< 0.0002
9274	Perfluorooctanoate anion	μg/l						0.0025	0.0027	0.0027	0.0023	0.0018
9276	Perfluorooctylsulphonate anion	μg/l						0.0077	0.0062	0.012	0.006	0.007
9905	Dry Matter : %	%	30.5	30.5	27.3	26.7	29.9

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sampling point Thames At Marlow Weir

Determinands

Sampling results

Samples from 10 Mar 2020 to 6 Mar 2024

Samples from 12 Sep 2019 to 10 Feb 2020

sampling point
Thames At Marlow Weir