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sampling point
Lee Navigation Subsidary B Above Enfield

Description LEE NAVIGATION SUBSIDARY B ABOVE ENFIELD LOCK
Sampling point ID TH-PLER0468
Type Freshwater – Unspecified
Status open
Location easting northing: 537170 198400
lat lon: 51.667634, -0.017923
Area Hertfordshire And North London
Sub-Area L&W Herts & North London
Summary 73 samples taken between 2020 and 2002

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.

20 determinands have been measured at this site
  • Alky pH 4.5
  • Ammonia(N)
  • Bromate
  • Bromide Ion
  • Chloride Ion
  • Cond @ 20C
  • Cond @ 25C
  • N Oxidised
  • NH3 un-ion
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • Orthophospht
  • Oxygen Diss
  • Sodium - Na
  • Temp Water
  • TriBT Cation
  • Triclosan
  • Type of Flow
  • pH

Sampling results

Displaying the twenty most recent samples. You can see all 73 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 14 Jun 2019 to 4 Mar 2020

NotationDeterminandUnits14 Jun
2019
11:46		10 Jul
2019
15:08		 6 Aug
2019
12:53		 6 Sep
2019
08:36		 9 Oct
2019
14:48		20 Nov
2019
14:17		12 Dec
2019
13:28		13 Jan
2020
12:11		 5 Feb
2020
11:30		 4 Mar
2020
13:34
0061pH8.48.728.388.248.267.978.168.158.268.53
0076Temperature of Water°C15.622.120.816.814.15.55.77.66.56.3
0077Conductivity at 25 Cμs/cm839824888886825839834795812697
0111Ammoniacal Nitrogen as Nmg/l0.043< 0.030.043< 0.03< 0.03< 0.03< 0.03< 0.03< 0.03< 0.03
0116Nitrogen, Total Oxidised as Nmg/l6.686.35.68.49.58.497.89.38.98.3
0117Nitrate as Nmg/l6.616.235.578.399.498.487.799.298.898.29
0118Nitrite as Nmg/l0.06910.070.0310.0140.0140.00860.00750.0140.0110.01
0119Ammonia un-ionised as Nmg/l0.00118< 0.001310.00172< 0.0009< 0.00074< 0.00037< 0.0004< 0.00046< 0.00042< 0.00042
0162Alkalinity to pH 4.5 as CaCO3mg/l219210210210190207200210220220
0180Orthophosphate, reactive as Pmg/l0.3060.180.290.230.280.2260.20.180.150.13
9901Oxygen, Dissolved, % Saturation%96.8149.3111.597.7113.781.69092.699.3108.4
9924Oxygen, Dissolved as O2mg/l9.61139.969.4611.710.311.311.112.213.4

Samples from 1 Aug 2017 to 7 May 2019

NotationDeterminandUnits 1 Aug
2017
08:28		21 Sep
2017
14:53		23 Oct
2017
09:53		 2 Nov
2017
11:55		 6 Dec
2017
13:48		 5 Jan
2018
12:20		 1 Feb
2018
14:32		12 Mar
2018
09:49		 3 Apr
2019
14:53		 7 May
2019
14:19
0061pH8.448.93
0076Temperature of Water°C10.713.5
0077Conductivity at 25 Cμs/cm813715
0111Ammoniacal Nitrogen as Nmg/l0.037< 0.03
0116Nitrogen, Total Oxidised as Nmg/l6.936.89
0117Nitrate as Nmg/l6.916.85
0118Nitrite as Nmg/l0.01790.037
0119Ammonia un-ionised as Nmg/l0.00071< 0.00071
0162Alkalinity to pH 4.5 as CaCO3mg/l18897
0180Orthophosphate, reactive as Pmg/l0.1690.012
8944Tributyl Tin as Cationμg/l0.00060.000330.000450.000420.000470.000310.001080.00073
9901Oxygen, Dissolved, % Saturation%116.8195.8
9924Oxygen, Dissolved as O2mg/l12.920.4