We would welcome your feedback to help us make future improvements.

sampling point
Lee Above Lea Bridge Weir

Description LEE ABOVE LEA BRIDGE WEIR
Sampling point ID TH-PLER0049
Type Freshwater – Rivers
Status open
Location easting northing: 535700 186600
lat lon: 51.561955, -0.043731
Area Hertfordshire And North London
Sub-Area L&W Herts & North London
Summary 347 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.

186 determinands have been measured at this site
  • 1,2,3-TCB
  • 1,2,3-TCB
  • 1,2,4-TCB
  • 1,2,4-TCB
  • 1,3,5-TCB
  • 1,3,5TCB D
  • 12-DCA
  • 4-nonPhenol
  • Action taken
  • Al - Dry Wt
  • Al- Filtered
  • Aldrin
  • Aldrin DWt
  • Alky pH 4.5
  • Ammonia(N)
  • AmoniaTotYSI
  • As - DWt
  • As < 63
  • B-[a]-pyrene
  • B-[b]-fluora
  • B-[ghi]-pery
  • B-[k]-fluora
  • BOD ATU
  • C - Org Filt
  • C Organic DW
  • CHLOR A
  • CHLOROPHYLL
  • COD as O2
  • Cadmium - Cd
  • Carbon Tet
  • Cd - Dry Wt
  • Cd Filtered
  • Chloride Ion
  • Chloroform
  • Chromium -Cr
  • ColformsPre
  • Cond @ 20C
  • Cond @ 25C
  • Copper - Cu
  • Cr DW <63
  • Cr - Dry Wt
  • Cr- Filtered
  • Cu - Dry Wt
  • Cu DW <63
  • Cu Filtered
  • DDE (PP')
  • DDE (PP')DWt
  • DDT (OP')
  • DDT (OP')DWt
  • DDT (PP')DWt
  • DDT (PP)
  • DDT Derived
  • DEHP
  • Dieldrin
  • Dieldrin DWt
  • Drins Drvd
  • Drins Dry Wt
  • DrySolids30C
  • Endrin
  • Endrin DryWt
  • F Coli Pre
  • Fe- Filt
  • GCMS LL sVol
  • GCMS S-Vol
  • GCMS Vol Scn
  • GS Kurtosis
  • GS Mean
  • GS Median
  • GSF 160-112
  • GSF 11.4-9.1
  • GSF 112-84
  • GSF 125-249
  • GSF 1k- 2k
  • GSF 2000-500
  • GSF 250-499
  • GSF 261-160
  • GSF 2k-4k
  • GSF 39-30.3
  • GSF 50.2-39
  • GSF 500-999
  • GSF 564-261
  • GSF 62.5-124
  • GSF 64-50
  • GSF 7.2-5.8
  • GSF 84-64
  • GSF 9.1-7.2
  • GSF <20
  • GSF <2000um
  • GSF <5.8 um
  • GSF >2000um
  • GSF >8000
  • GSF14.5-11.4
  • GSF18.5-14.5
  • GSF23.7-18.5
  • GSF30.3-23.7
  • GSF4000-7999
  • GraphSkewn
  • HCB DRY WT
  • HCBD DRY
  • HCH Alpha
  • HCH Beta
  • HCH Beta DWt
  • HCH Delta
  • HCH Drvd
  • HCH Gamma
  • HCHAlpha DWt
  • HCHDelta DWt
  • HCHGamma DWt
  • HCHs ABG dw
  • HEXACHLORO 1
  • Hexachlorbnz
  • Hg - Dry Wt
  • Hg Filtered
  • ICP-MS Semiq
  • Ind123pyrene
  • Isodrin
  • Isodrin DWt
  • LCMS
  • Lead - as Pb
  • MR Screen
  • Mean dia
  • Median dia
  • Mercury - Hg
  • Mn- Filtered
  • N Oxidised
  • NH3 un-ion
  • Ni - Dry Wt
  • Ni DW <63
  • Ni- Filtered
  • Nickel - Ni
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • Oil & Grs Vs
  • Orthophospht
  • Oxygen Diss
  • PBDE 100
  • PBDE 153
  • PBDE 154
  • PBDE 28
  • PBDE 47
  • PBDE 99
  • PCB 101 DW
  • PCB 118 DW
  • PCB 138 DW
  • PCB 153 DW
  • PCB 180 DW
  • PCB 28 DW
  • PCB 52 DW
  • Pb - Dry Wt
  • Pb DW <63
  • Pb Filtered
  • Pentachlrphl
  • PentchlrpDWt
  • SI-GQA
  • SI-LIST1
  • Sample Prep
  • SiO2 Rv
  • Sieved < 63
  • Sieved < 63
  • Sld Sus@105C
  • Sld V @400C
  • Sld V @480C
  • Solids <63um
  • Sort Coeff
  • StrepF PMF
  • TCB Tot
  • TCB tot dw
  • TDE (PP')DWt
  • TDE (PP)
  • Temp Water
  • TetClEthene
  • Tot DDTs dw
  • Tot Drins(4)
  • Tot HCHs ABG
  • TriBT Cation
  • Trichloroeth
  • TurbidityNTU
  • Type of Flow
  • Zinc - as Zn
  • Zn - Dry Wt
  • Zn DW < 63
  • Zn- Filtered
  • pH
  • pH in-situ
  • ptOctylPheno

Sampling results

Displaying the twenty most recent samples. You can see all 347 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 2 Jun 2023 to 4 Mar 2024

NotationDeterminandUnits 2 Jun
2023
12:58		 6 Jul
2023
12:30		 8 Aug
2023
12:52		13 Sep
2023
09:59		 9 Oct
2023
11:12		 1 Nov
2023
11:31		 7 Dec
2023
11:19		 4 Jan
2024
10:27		13 Feb
2024
10:27		 4 Mar
2024
12:39
0061pH7.467.257.427.467.417.297.347.547.677.48
0076Temperature of Water°C18.519.319.121.119.315.410.2109.99.6
0077Conductivity at 25 Cμs/cm10437479311019993826893690845751
0111Ammoniacal Nitrogen as Nmg/l0.230.140.160.140.240.20.130.180.17
0116Nitrogen, Total Oxidised as Nmg/l2315151713179.91312
0117Nitrate as Nmg/l22.914.814.916.912.916.99.8512.911.9
0118Nitrite as Nmg/l0.0990.170.110.0790.0880.0710.0480.060.065
0119Ammonia un-ionised as Nmg/l0.00230.000920.001940.001330.001290.000820.000830.001540.00092
0162Alkalinity to pH 4.5 as CaCO3mg/l160130190170160170170200180
0180Orthophosphate, reactive as Pmg/l0.650.590.740.610.610.60.330.510.38
9901Oxygen, Dissolved, % Saturation%110.640.573.963.57366.177.28581.482.1
9924Oxygen, Dissolved as O2mg/l10.33.726.825.646.716.598.669.589.199.34

Samples from 22 Aug 2022 to 31 May 2023

NotationDeterminandUnits22 Aug
2022
11:21		 5 Oct
2022
11:27		28 Oct
2022
13:37		16 Nov
2022
13:50		16 Dec
2022
13:39		23 Jan
2023
14:07		27 Feb
2023
12:08		 6 Mar
2023
11:38		21 Apr
2023
12:28		31 May
2023
10:52
0061pH7.427.267.167.377.217.467.387.47.417.42
0076Temperature of Water°C22.218.617.714.68.98.410.612.113.517.5
0077Conductivity at 25 Cμs/cm105310679868141138966107110759621048
0111Ammoniacal Nitrogen as Nmg/l0.10.180.180.180.340.30.340.230.350.28
0116Nitrogen, Total Oxidised as Nmg/l16241914241926262022
0117Nitrate as Nmg/l15.923.918.913.923.918.925.725.919.921.9
0118Nitrite as Nmg/l0.0940.0870.110.10.0770.0860.30.120.10.092
0119Ammonia un-ionised as Nmg/l0.00120.001150.000850.00110.000940.001420.001580.001250.002160.00237
0162Alkalinity to pH 4.5 as CaCO3mg/l180150150150160170180170190170
0180Orthophosphate, reactive as Pmg/l0.540.810.590.550.630.570.610.690.680.56
9901Oxygen, Dissolved, % Saturation%59.769.755.167.673.678.883.9886982.3
9924Oxygen, Dissolved as O2mg/l5.196.55.236.868.519.239.329.447.177.85