sampling point
River Exe At Trews Weir Exeter

Description	RIVER EXE AT TREWS WEIR EXETER
Sampling point ID	SW-70540110
Type	Freshwater – Rivers
Status	open
Location	easting northing: 292546 91506 lat lon: 50.71322, -3.523332
Area	Devon And Cornwall
Sub-Area	East Devon And Cornwall
Summary	288 samples taken between 2000 and 2024 Note: a maximum of 10,000 sample measurements are included in this view. Older measurements have been omitted. Please see the API to access the complete data set.

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.

179 determinands have been measured at this site

1,1,1-TCA
12-DCA
1234678HpCDD
1234678HpCDF
123478-HxCDD
1234789HpCDF
123478HxCDF
123678-HxCDD
123678HxCDF
123789-HxCDD
123789HxCDF
12378PeCDD
12378PeCDF
2,4-D
2-CHLORO-4-N
2-CHLORO-6-N
234678HxCDF
23478PeCDF
2378-TCDD
2378-TCDF
2Cl5NToluene
4Cl2Ntoluene
4Cl3NToluene
Aclonifen
Ag- Filtered
Alachlor
Aldrin
Alky pH 4.5
Ammonia(N)
Arsenic - As
As-Filtered
B - Filtered
B-[a]-pyrene
B-[b]-fluora
B-[ghi]-pery
B-[k]-fluora
BOD ATU
Benzene
Bifenox
Boron - as B
C - Org Filt
CHLOROPHYLL
CN Free
COD as O2
Ca Filtered
Cadmium - Cd
Carbon Tet
Cd Filtered
Chloride Ion
Chloroform
Chlorothalnl
Chromium -Cr
Cond @ 25C
Copper - Cu
Cr Hexavalnt
Cr- Filtered
Cu Filtered
DDE (PP')
DDT (PP)
DiClBenzPhWW
DiClMe
Diazinon
Dichlorvos
Dieldrin
Dimethoate
Dry Matter %
Dtrgt NncSyn
DtrgtAncSyn
EndosulphanB
Endrin
Fe- Filt
Flow MeanDly
Flow m3/s
Fluoranthene
Fluoride - F
HBCDD
HBCDD TOT WW
HCH Alpha
HCH Beta
HCH Delta
HCH Gamma
HEXACHLORO 1
Heptachlor
Hexachlorbnz
Hg - Dry Wt
Hg - wet wt
Hg Filtered
ICP-MS Semiq
Ind123pyrene
Irgarol 1051
Iron - as Fe
K- Filtered
Lead - as Pb
Lipid tot ww
MR Screen
Manganse-Mn
Mercury - Hg
Mn- Filtered
N Oxidised
NH3 un-ion
Na- Filtered
Ni- Filtered
Nickel - Ni
Nitrate-N
Nitrite-N
Nitrogen - N
Nonyl Phenol
O Diss %sat
OCDD
OCDF WW
Octyl Phenol
Oil & Grs Vs
Orthophospht
Oxygen Diss
PBDE
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
PCB Con 028
PCB Con 052
PCB Con 101
PCB Con 118
PCB Con 138
PCB Con 153
PCB Con 180
PCBs
PClBenzene
PFOA WW
PFOS
PFOS WW
Pb Filtered
Pendimethaln
Phenol Odour
Phenols Mono
Phosphate
Phosphorus-P
Potassium- K
Quinoxyfen
SO4dis
Sample Prep
Se- Filtered
Selenium -Se
SiO2 Rv
Sld NV@500C
Sld Sus@105C
Sodium - Na
Sulphate SO4
TDE (PP)
Temp Water
Terbutryne
TetClEthene
TriBT Cation
TriPT Cation
Trichloroeth
Trifluralin
TurbidityNTU
Type of Flow
V - Filtered
Vanadium - V
WHOTEQ Low B
WethPresPrec
Zinc - as Zn
Zn- Filtered
a -HBCDD WW
b -HBCDD WW
c-Hept Epox
g -HBCDD WW
pFoctanoate
pH
t-Hept Epox

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

Samples from 25 Aug 2023 to 8 May 2024

Notation	Determinand	Units	25 Aug 2023 11:12	20 Sep 2023 11:36	9 Oct 2023 11:43	3 Nov 2023 10:36	1 Dec 2023 13:44	3 Jan 2024 13:58	14 Feb 2024 13:27	6 Mar 2024 09:32	5 Apr 2024 15:23	8 May 2024 14:21
0050	Lead	μg/l	0.21	1.1	0.28	2.5	1.2	1.7	0.7	0.68	4	0.7
0052	Lead, Dissolved	μg/l	< 0.1	0.25	0.1	0.25	< 0.1	0.16	0.19	0.12
0061	pH		8	7.94	7.73	7.22	7.74	7.56	7.7	7.74
0076	Temperature of Water	°C	17.7	15.9	14.4	10.2	5.5	9.5	10.8	6.7
0077	Conductivity at 25 C	μs/cm	257	231	226	163	234	145	182	210
0103	Mercury, Dissolved	μg/l	< 0.01	< 0.01		< 0.01	< 0.01	< 0.01	< 0.01	< 0.01
0105	Mercury	μg/l	< 0.01	< 0.01		0.011	< 0.01	< 0.01	< 0.01	< 0.01	0.011	< 0.01
0106	Cadmium, Dissolved	μg/l	< 0.01	< 0.01	< 0.01	0.014	< 0.01	0.01	< 0.01	0.011
0108	Cadmium	μg/l	< 0.01	0.022	< 0.01	0.056	0.025	0.036	0.019	0.022	0.087	0.026
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	0.042	< 0.03	< 0.03	0.047	0.031	0.033	0.044
0116	Nitrogen, Total Oxidised as N	mg/l	3.1	2.8	2.5	2.2	3.2	1.7	2.6	2.5
0117	Nitrate as N	mg/l	3.09	2.78	2.49	2.19	3.18	1.69	2.59	2.49
0118	Nitrite as N	mg/l	0.012	0.017	0.0082	0.0091	0.02	0.0087	0.012	0.014
0119	Ammonia un-ionised as N	mg/l	< 0.00096	0.00103	< 0.00041	< 9.0e-05	0.00034	0.0002	0.00032	0.00035
0135	Solids, Suspended at 105 C	mg/l	3.5	15	< 3	45	5.4	35	13	12	85	4.2
0172	Chloride	mg/l	19	16	17	14	17	12	15	15
0180	Orthophosphate, reactive as P	mg/l	0.089	0.091	0.063	0.088	0.058	0.049	0.05	0.054
0182	Silica, reactive as SiO2	mg/l	5.1	6.7	6.4	6	7.6	4.9	5.7	6.2
0205	Sodium, Dissolved	mg/l	13	10	11	8.6	11	7.9	9	10
0209	Potassium, Dissolved	mg/l	2.7	3.1	2.4	3.5	2.5	2.4	2.2	2.6
0348	Phosphorus, Total as P	mg/l	0.11	0.11	0.078	0.2	0.076	0.11	0.084	0.087
0499	HCH -gamma :- {Lindane}	μg/l	< 0.003	< 0.003	< 0.003	< 0.003	< 0.003	< 0.003	< 0.003		< 0.003	< 0.003
0753	PCB : Total	μg/l	< 0.008	< 0.008	< 0.008	< 0.008	< 0.008	< 0.008	< 0.008		< 0.008	< 0.008
3408	Zinc, Dissolved	μg/l	1.9	3.4	1.8	2.9	3	2	13	2
3409	Chromium, Dissolved	μg/l	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5
3410	Nickel, Dissolved	μg/l	0.96	1.3	0.85	2	1.1	1.3	1.2	1.2
4994	GCMS Screen : Target Based multi-residue screening : Semi Quantitative	text			1	1	1	1	1	1
6045	Arsenic, Dissolved	μg/l	1.5	1.4	1.1	1.1	< 1	< 1	< 1	< 1
6396	Turbidity	ntu	1.5	12	2.2	48	4.6	31	9.8	8.6
6450	Copper, Dissolved	μg/l	1.1	2	0.82	2.6	0.94	1.9	1.2	1.2
6452	Copper	μg/l	1.2	2.7	0.99	4.4	1.6	2.5	1.5	1.7	4.5	1.8
6455	Zinc	μg/l	2.7	7.1	2.2	13	8.2	8.3	3.9	4	16	7.3
6458	Manganese, Dissolved	μg/l	24	17	25	20	27	11	12	20
6460	Iron, Dissolved	μg/l	110	120	130	160	100	100	120	93
6462	Nickel	μg/l							1.6	1.8	5.1	1.4
7859	Sulphate, Dissolved as SO4	mg/l	15	12	11	< 10	12	< 10	< 10	< 10
7887	Chlorophyll : Acetone Extract	μg/l	2.6	4.5	1.3	6.1	0.76	1.9	1.6	1.8
9447	Boron, Dissolved	μg/l	< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100
9686	Nitrogen, Total as N	mg/l	3.3	3.3	2.7	3.3	3.6	2.3	2.9	3
9768	PCB - 028	μg/l	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
9769	PCB - 052	μg/l	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001		< 0.001	< 0.001
9770	PCB - 101	μg/l	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
9771	PCB - 118	μg/l	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
9772	PCB - 138	μg/l	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
9773	PCB - 153	μg/l	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
9774	PCB - 180	μg/l	< 0.002	< 0.002	< 0.002	< 0.002	< 0.002	< 0.002	< 0.002	< 0.002	< 0.002	< 0.002
9901	Oxygen, Dissolved, % Saturation	%	106	100.2	100.3	98.9	101.8	101.1	104.7	101.3
9924	Oxygen, Dissolved as O2	mg/l	10.1	9.88	10.2	11.1	12.8	11.5	11.6	12.4

Samples from 18 Feb 2020 to 14 Jun 2023

Notation	Determinand	Units	18 Feb 2020 10:11	2 Mar 2020 13:26	26 Jan 2022 11:21	2 Feb 2022 11:31	3 Mar 2022 11:30	21 Apr 2022 12:47	17 May 2022 10:26	3 Apr 2023 09:40	11 May 2023 16:11	14 Jun 2023 12:38
0050	Lead	μg/l	1.4	1.3	0.39	0.31	2.1	0.25	0.81	1.7	1	0.38
0052	Lead, Dissolved	μg/l	0.14	0.14	0.18	0.2	0.18	< 0.1	0.19	0.17	0.15	< 0.1
0061	pH		7.62	7.69	7.96	7.41	7.64	8.29	8.67	7.98	7.72	8.28
0076	Temperature of Water	°C	7.4	7.2	6.2	9	8.9	14	17.3	9	12.9	21.8
0077	Conductivity at 25 C	μs/cm	182	178	277	452	217	318	308	181	223	333
0103	Mercury, Dissolved	μg/l	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01
0105	Mercury	μg/l	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	0.03	< 0.01
0106	Cadmium, Dissolved	μg/l	< 0.01	0.012	< 0.01	< 0.01	0.013	0.011	0.013	0.013	0.011	0.013
0108	Cadmium	μg/l	0.04	0.033	0.011	< 0.01	0.036	0.014	0.022	0.029	0.031	0.015
0111	Ammoniacal Nitrogen as N	mg/l	0.35	0.1	0.052	0.053	0.051	< 0.03	0.075	< 0.03	0.037	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	2.3	2.2	4.2	4.1	2.6	4.1	3.3	2.4	2.2	< 0.2
0117	Nitrate as N	mg/l	2.29	2.19	4.17	4.07	2.58	4.07	3.26	2.39	2.18	0.152
0118	Nitrite as N	mg/l	0.012	0.012	0.029	0.03	0.018	0.029	0.044	0.0089	0.018	0.048
0119	Ammonia un-ionised as N	mg/l	0.00222	0.00073	0.00066	0.00023	0.00038	< 0.00073	0.00233	< 0.00049	0.00044	< 0.00129
0135	Solids, Suspended at 105 C	mg/l	42	33	7.7	6.8		< 3	12	44	16	4.8
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	45	47
0172	Chloride	mg/l	17	17	19	22	21	22	23	16	15	23
0180	Orthophosphate, reactive as P	mg/l	0.073	0.061	0.074	0.08	0.061	0.071	0.11	0.042	0.078	0.11
0182	Silica, reactive as SiO2	mg/l	5.2	4.8	8.2	7.9	6	2.1	3.9	5.4	6.5	6.3
0205	Sodium, Dissolved	mg/l	10		12	13	12	15	15	9.3	10	15
0209	Potassium, Dissolved	mg/l	2.8		2.7	2.7	3.2	3.1	3.4	1.9	2.9	3.4
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	3.2	3	0.79	2.2	4.2	2.7	3	2.4
0348	Phosphorus, Total as P	mg/l	0.16	0.12	0.098	0.096	0.12	0.11	0.18	0.09	0.13	0.14
0499	HCH -gamma :- {Lindane}	μg/l	< 0.003	< 0.003	< 0.003	< 0.003	< 0.003	< 0.003	< 0.003	< 0.003	< 0.003	< 0.003
0753	PCB : Total	μg/l	< 0.008	< 0.008	< 0.008		< 0.008		< 0.008	< 0.008	< 0.008	< 0.008
3408	Zinc, Dissolved	μg/l	6.3	7.5	3.7	3.7	3.4	2.2	4.3	6.3	2.2	2.2
3409	Chromium, Dissolved	μg/l	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5	< 0.5
3410	Nickel, Dissolved	μg/l	1.3	1.2	0.95	0.99	1.5	1.1	1.3	1.2	1.6	1.1
4994	GCMS Screen : Target Based multi-residue screening : Semi Quantitative	text	1	1						1
6045	Arsenic, Dissolved	μg/l	< 1	< 1	< 1	1.3	< 1	1.5	1.6	< 1	1	1.7
6396	Turbidity	ntu	33	33	2.3	3.2	5.9	3.3	9.1		12	2.3
6450	Copper, Dissolved	μg/l	1.4	1.3	1	1.9	1.7	1.3	2.1	1.3	2.1	1.1
6452	Copper	μg/l	3.1	2.4	1.2	2.1	3	1.5	2.6	2.1	3	1.8
6455	Zinc	μg/l	17	9.5	3.5	4.4	10	3.4	4.3	11	6.4	11
6458	Manganese, Dissolved	μg/l	14		22	17	15	18	17	15	17	19
6460	Iron, Dissolved	μg/l	76		93	160	120	93	75	60	120	62
7859	Sulphate, Dissolved as SO4	mg/l	< 10		13	14	10	14	15	< 10	10	16
7887	Chlorophyll : Acetone Extract	μg/l	6.3	3.3	2.6	5	4.5	17	11	2.4	6.8	4.2
9447	Boron, Dissolved	μg/l	< 100		< 100	< 100	< 100	< 100	< 100	< 100	< 100	< 100
9686	Nitrogen, Total as N	mg/l	3.4	2.7	4.6	4.2	3.3	4.4	4.2	2.7	3	5.1
9768	PCB - 028	μg/l	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
9769	PCB - 052	μg/l	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
9770	PCB - 101	μg/l	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
9771	PCB - 118	μg/l	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
9772	PCB - 138	μg/l	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
9773	PCB - 153	μg/l	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
9774	PCB - 180	μg/l	< 0.002	< 0.002	< 0.002		< 0.002		< 0.002	< 0.002	< 0.002	< 0.002
9901	Oxygen, Dissolved, % Saturation	%	84.8	101.7	97.1	94.5	97.1	101.7	140.5	100	101.5	108.4
9924	Oxygen, Dissolved as O2	mg/l	10.2	12.3	12	10.9	11.2	10.5	13.5	11.5	10.7	9.49

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sampling point River Exe At Trews Weir Exeter

Determinands

Sampling results

Samples from 25 Aug 2023 to 8 May 2024

Samples from 18 Feb 2020 to 14 Jun 2023

sampling point
River Exe At Trews Weir Exeter