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sampling point
Ock At Lyford Bridge, Lyford

Description OCK AT LYFORD BRIDGE, LYFORD
Sampling point ID TH-POCR0015
Type Freshwater – Unspecified
Status open
Location easting northing: 439200 194700
lat lon: 51.649728, -1.434808
Area West Thames
Sub-Area L&W North Wt
Summary 122 samples taken between 2024 and 2010

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.

27 determinands have been measured at this site
  • Alky pH 4.5
  • Ammonia(N)
  • BOD ATU
  • C - Org Filt
  • Ca Filtered
  • Calcium - Ca
  • Cd Filtered
  • Cond @ 25C
  • Cr- Filtered
  • Cu Filtered
  • Fe- Filt
  • Hardness
  • Magnesium-Mg
  • Mn- Filtered
  • N Oxidised
  • NH3 un-ion
  • Ni- Filtered
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • Orthophospht
  • Oxygen Diss
  • Pb Filtered
  • Sld Sus@105C
  • Temp Water
  • Zn- Filtered
  • pH

Sampling results

Displaying the twenty most recent samples. You can see all 122 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 15 Aug 2023 to 1 Jul 2024

NotationDeterminandUnits15 Aug
2023
11:27
1 Sep
2023
13:21
6 Oct
2023
11:24
3 Nov
2023
09:27
1 Dec
2023
11:18
10 Jan
2024
11:14
2 Feb
2024
10:19
8 Mar
2024
09:54
3 Jun
2024
10:18
1 Jul
2024
13:11
0061pH7.977.997.997.4688.068.088.178.338.09
0076Temperature of Water°C16.715.513.78.24.347.77.114.515
0077Conductivity at 25 Cμs/cm753747772374725696710709716706
0085BOD : 5 Day ATUmg/l< 1< 112.31.21.31.211.2< 1
0111Ammoniacal Nitrogen as Nmg/l< 0.03< 0.030.045< 0.03< 0.030.0810.059< 0.03< 0.03< 0.03
0116Nitrogen, Total Oxidised as Nmg/l2.1333.165.86.15.24.54.1
0117Nitrate as Nmg/l2.092.992.993.095.995.786.075.184.494.09
0118Nitrite as Nmg/l0.00590.0070.0060.0130.0120.0230.0260.0180.00920.012
0119Ammonia un-ionised as Nmg/l< 0.00083< 0.00080.00105< 0.00014< 0.000360.000950.00091< 0.00044< 0.00076< 0.00079
0162Alkalinity to pH 4.5 as CaCO3mg/l210240280130280260290260280260
0180Orthophosphate, reactive as Pmg/l0.160.20.180.260.120.130.140.0980.170.25
9901Oxygen, Dissolved, % Saturation%87.490.383.675.292.694.294.394.395.792.8
9924Oxygen, Dissolved as O2mg/l8.488.988.658.851212.311.211.49.739.33

Samples from 27 Oct 2022 to 19 Jul 2023

NotationDeterminandUnits27 Oct
2022
13:53
11 Nov
2022
08:54
2 Dec
2022
14:40
17 Jan
2023
12:30
2 Feb
2023
12:06
2 Mar
2023
09:30
2 May
2023
11:02
2 Jun
2023
09:28
3 Jul
2023
10:22
19 Jul
2023
09:05
0061pH7.867.918.197.948.138.268.228.0787.94
0076Temperature of Water°C14.6126.63.77.35.511.2121415.4
0077Conductivity at 25 Cμs/cm888849823647735747631708713725
0111Ammoniacal Nitrogen as Nmg/l< 0.03< 0.03< 0.03< 0.03< 0.03< 0.03< 0.03< 0.03< 0.03< 0.03
0116Nitrogen, Total Oxidised as Nmg/l4.6128.68.47.25.85.14.53.13.9
0117Nitrate as Nmg/l4.58128.598.387.195.795.094.493.093.89
0118Nitrite as Nmg/l0.0210.0360.00930.0180.0120.00540.00940.0110.0130.011
0119Ammonia un-ionised as Nmg/l< 0.00056< 0.00052< 0.00043< 0.0003< 0.00045< 0.00039< 0.0006< 0.00063< 0.00073< 0.00071
0162Alkalinity to pH 4.5 as CaCO3mg/l210220250210250270270260270260
0180Orthophosphate, reactive as Pmg/l0.180.150.130.140.110.130.0880.190.350.25
9901Oxygen, Dissolved, % Saturation%80.780.190.386.597.6106.810185.783.984.3
9924Oxygen, Dissolved as O2mg/l8.198.6111.111.411.713.411.19.228.628.41