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sampling point
Letcombe Brook At Weir Farm, East Hanney

Description LETCOMBE BROOK AT WEIR FARM, EAST HANNEY
Sampling point ID TH-POCR0006
Type Freshwater – Rivers
Status open
Location easting northing: 441310 192693
lat lon: 51.631533, -1.404549
Area West Thames
Sub-Area L&W North Wt
Summary 255 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.

58 determinands have been measured at this site
  • Action taken
  • Al - Dry Wt
  • Alky pH 4.5
  • Ammonia(N)
  • As < 63
  • B-[a]-pyrene
  • B-[b]-fluora
  • B-[ghi]-pery
  • B-[k]-fluora
  • BOD ATU
  • C - Org Filt
  • Ca Filtered
  • Carbendazim
  • Cd - Dry Wt
  • Cd Filtered
  • Chloride Ion
  • Cond @ 20C
  • Cond @ 25C
  • Cr DW <63
  • Cr- Filtered
  • Cu BLM Bio
  • Cu DW <63
  • Cu Filtered
  • Cypermethrin
  • Diuron
  • Fe- Filt
  • Fluoranthene
  • Flutriafol
  • HBCDD
  • Hg - Dry Wt
  • Ind123pyrene
  • Mg Filtered
  • Mn BLM Bio
  • Mn- Filtered
  • N Oxidised
  • NH3 un-ion
  • Ni BLM Bio
  • Ni DW <63
  • Ni- Filtered
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • Orthophospht
  • Oxygen Diss
  • PFOS
  • Pb BLM Bio
  • Pb DW <63
  • Pb Filtered
  • SI-GQA
  • Temp Water
  • TriBT Cation
  • Type of Flow
  • Zn BLM Bio
  • Zn DW < 63
  • Zn- Filtered
  • pFoctanoate
  • pH
  • pH in-situ

Sampling results

Displaying the twenty most recent samples. You can see all 255 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 30 Aug 2023 to 5 Jul 2024

NotationDeterminandUnits30 Aug
2023
11:24
1 Sep
2023
12:55
6 Oct
2023
11:47
13 Nov
2023
11:15
7 Dec
2023
11:47
10 Jan
2024
11:48
21 Feb
2024
10:42
12 Mar
2024
13:54
3 Jun
2024
09:45
5 Jul
2024
10:32
0061pH7.997.828.097.848.118.168.088.058.38.1
0076Temperature of Water°C15.21614.511.38.96.71010.313.914.3
0077Conductivity at 25 Cμs/cm736702750620693682673609665677
0085BOD : 5 Day ATUmg/l1.92.31.93.63.42.62.54.81.9< 4
0111Ammoniacal Nitrogen as Nmg/l0.390.550.170.880.690.490.580.990.140.28
0116Nitrogen, Total Oxidised as Nmg/l1312156.88.49.28.47.71012
0117Nitrate as Nmg/l12.811.814.96.718.329.118.317.629.9211.9
0118Nitrite as Nmg/l0.160.20.110.0870.0780.0950.0950.0780.080.12
0119Ammonia un-ionised as Nmg/l0.01020.01040.004310.01230.01160.007010.01060.01850.003390.00699
0162Alkalinity to pH 4.5 as CaCO3mg/l200200200240240260260230230210
0180Orthophosphate, reactive as Pmg/l0.130.150.170.250.150.130.160.20.120.1
9901Oxygen, Dissolved, % Saturation%85.987.696.191.193.297.6939694.692.9
9924Oxygen, Dissolved as O2mg/l8.68.629.779.9610.811.910.510.79.759.49

Samples from 2 Mar 2021 to 15 Aug 2023

NotationDeterminandUnits 2 Mar
2021
09:30
8 Apr
2021
12:11
5 May
2021
08:50
1 Jun
2021
10:32
2 Jul
2021
10:13
3 Aug
2021
08:17
24 Apr
2023
10:56
27 Jun
2023
09:13
12 Jul
2023
09:14
15 Aug
2023
11:55
0061pH8.28.328.217.967.878.048.267.878.048.06
0076Temperature of Water°C7.7991515.414.610.615.415.316.8
0077Conductivity at 25 Cμs/cm650666646659709630659638608686
0085BOD : 5 Day ATUmg/l2.14.61.41.42.11.21.7< 31.91.6
0111Ammoniacal Nitrogen as Nmg/l0.140.240.130.20.370.130.150.160.180.16
0116Nitrogen, Total Oxidised as Nmg/l9.7121010108.29.68.58.613
0117Nitrate as Nmg/l9.6511.99.939.879.878.129.528.328.5212.9
0118Nitrite as Nmg/l0.0550.110.0750.130.130.0770.0760.180.0820.089
0119Ammonia un-ionised as Nmg/l0.002160.004070.00220.00480.007470.003320.002860.003230.004830.00479
0162Alkalinity to pH 4.5 as CaCO3mg/l230230210220220220220220190190
0180Orthophosphate, reactive as Pmg/l0.140.610.160.140.260.170.0940.150.130.17
9901Oxygen, Dissolved, % Saturation%97.899.18995.190.485.9100.573.18695.8
9924Oxygen, Dissolved as O2mg/l11.711.410.39.569.018.7211.27.298.599.27