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sampling point
River Lew At Lewer Bridge

Description RIVER LEW (TORRIDGE) AT LEWER BRIDGE
Sampling point ID SW-72930805
Type Freshwater – Rivers
Status open
Location easting northing: 253130 105250
lat lon: 50.828102, -4.086769
Area Devon And Cornwall
Sub-Area East Devon And Cornwall
Summary 205 samples taken between 2024 and 2000

Determinands

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.

34 determinands have been measured at this site
  • Action taken
  • Alky pH 4.5
  • Ammonia(N)
  • BOD ATU
  • Calcium - Ca
  • Cond @ 20C
  • Cond @ 25C
  • Cu Filtered
  • E.coli C-MF
  • Hardness
  • Hdnss Ca
  • Hdnss Mg
  • IE Conf
  • IE Pres
  • Magnesium-Mg
  • Mineral Oils
  • N Inorganic
  • N Oxidised
  • NH3 un-ion
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • Oil & Grs Vs
  • Orthophospht
  • Oxygen Diss
  • Phenol Odour
  • PhenolicOdor
  • Potassium- K
  • Sld Sus@105C
  • Temp Water
  • Type of Flow
  • WethPresPrec
  • Zinc - as Zn
  • pH

Sampling results

Displaying the twenty most recent samples. You can see all 205 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 29 Aug 2023 to 2 Jul 2024

NotationDeterminandUnits29 Aug
2023
09:57
22 Sep
2023
09:26
13 Oct
2023
09:31
10 Nov
2023
14:26
5 Dec
2023
07:13
11 Jan
2024
10:05
1 Feb
2024
11:58
8 Mar
2024
12:54
4 Jun
2024
10:07
2 Jul
2024
10:36
0061pH7.477.846.947.357.797.187.487.477.77.45
0076Temperature of Water°C14.112.315.99.673.57.97.314.615.5
0077Conductivity at 25 Cμs/cm181146143137113154167150204261
0111Ammoniacal Nitrogen as Nmg/l< 0.030.040.230.110.130.0380.0350.07< 0.030.049
0116Nitrogen, Total Oxidised as Nmg/l0.991.41.10.890.641.81.51.71.42
0117Nitrate as Nmg/l0.9861.391.090.8840.6341.791.491.681.391.98
0118Nitrite as Nmg/l< 0.0040.00840.0130.00610.00560.00970.0140.0160.0110.02
0119Ammonia un-ionised as Nmg/l< 0.000220.00060.000580.000440.001187.0e-050.000170.00031< 0.000390.00038
0162Alkalinity to pH 4.5 as CaCO3mg/l42263030262932314756
0180Orthophosphate, reactive as Pmg/l0.0750.070.0610.0330.0390.0350.0450.0430.0770.2
2348Escherichia coli : Confirmed : MFno/100ml36043005500042006400
3722Enterococci: Intestinal: Presumptive: MFcfu/0.1l13026003000052009800
3723Enterococci: Intestinal: Confirmed: MFcfu/0.1l11023003000052007900
9901Oxygen, Dissolved, % Saturation%9596.492.397.397.598.397.4100.595.892.2
9924Oxygen, Dissolved as O2mg/l9.7410.39.1111.111.81311.512.19.729.17

Samples from 26 Oct 2022 to 21 Jul 2023

NotationDeterminandUnits26 Oct
2022
11:30
15 Nov
2022
11:07
2 Dec
2022
10:34
19 Jan
2023
13:45
23 Feb
2023
12:47
21 Mar
2023
11:28
10 May
2023
14:30
6 Jun
2023
11:02
28 Jun
2023
12:14
21 Jul
2023
11:10
0061pH7.67.37.67.57.627.587.287.677.897.4
0076Temperature of Water°C13.711.95.95.47.110.312.31417.314.5
0077Conductivity at 25 Cμs/cm173153156152184144129174213250
0111Ammoniacal Nitrogen as Nmg/l< 0.030.120.0310.0530.14< 0.030.04< 0.030.11< 0.03
0116Nitrogen, Total Oxidised as Nmg/l1.40.861.91.61.11.11.30.872.51.9
0117Nitrate as Nmg/l1.40.8511.891.591.081.091.290.8662.441.89
0118Nitrite as Nmg/l< 0.0040.00940.00580.00640.0160.00960.00790.0040.0570.014
0119Ammonia un-ionised as Nmg/l< 0.000290.000510.000170.000220.00087< 0.000220.00017< 0.000350.00267< 0.00019
0162Alkalinity to pH 4.5 as CaCO3mg/l26342523413426456543
0180Orthophosphate, reactive as Pmg/l0.0270.0480.0330.0320.060.0440.0370.0260.220.13
2348Escherichia coli : Confirmed : MFno/100ml780270008101400580970
3722Enterococci: Intestinal: Presumptive: MFcfu/0.1l71014000220350350140
3723Enterococci: Intestinal: Confirmed: MFcfu/0.1l71013000200350350130
9901Oxygen, Dissolved, % Saturation%96.1959898.599.498.697.996.796.693
9924Oxygen, Dissolved as O2mg/l9.9410.212.212.4121110.59.949.259.46