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sampling point
Wandle At Watermeads, Mitcham

Description WANDLE AT WATERMEADS, MITCHAM
Sampling point ID TH-PWAR0067
Type Freshwater – Unspecified
Status open
Location easting northing: 527520 167600
lat lon: 51.393112, -0.168524
Area Kent And South London
Sub-Area L&W South London Ksl
Summary 274 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.

92 determinands have been measured at this site
  • 4-nonPhenol
  • Action taken
  • Alky pH 4.5
  • Ammonia(N)
  • AmoniaTotYSI
  • BOD ATU
  • C - Org Filt
  • C Organic DW
  • CHLOROPHYLL
  • COD as O2
  • Ca Filtered
  • Cadmium - Cd
  • Calcium - Ca
  • Cd - Dry Wt
  • Cd Filtered
  • Chloride Ion
  • Cond @ 20C
  • Cond @ 25C
  • Cr- Filtered
  • Cu Filtered
  • DrySolids30C
  • Fe- Filt
  • 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
  • Hardness
  • Hg - Dry Wt
  • Hg Filtered
  • Magnesium-Mg
  • Mean dia
  • Median dia
  • Mercury - Hg
  • Mg Filtered
  • Mn- Filtered
  • N Oxidised
  • NH3 un-ion
  • Ni- Filtered
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • Orthophospht
  • Oxygen Diss
  • Pb Filtered
  • SI-EC-CD
  • SI-EC-HG
  • SI-GQA
  • Sample Prep
  • SiO2 Rv
  • Sieved < 63
  • Sld Sus@105C
  • Sld V @400C
  • Sld V @480C
  • Solids <63um
  • Sort Coeff
  • Temp Water
  • TriBT Cation
  • Triclosan
  • TurbidityNTU
  • Type of Flow
  • Zn- Filtered
  • pH
  • pH in-situ
  • ptOctylPheno

Sampling results

Displaying the twenty most recent samples. You can see all 274 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 12 Sep 2022 to 12 Jan 2024

NotationDeterminandUnits12 Sep
2022
14:40
27 Oct
2022
09:16
10 Nov
2022
09:35
14 Dec
2022
11:22
25 Jan
2023
11:03
10 Mar
2023
11:34
24 Apr
2023
10:29
27 Jul
2023
13:55
27 Oct
2023
11:09
12 Jan
2024
08:34
0061pH7.677.667.687.737.877.637.677.467.637.63
0076Temperature of Water°C22.316.513.79.49.310.5
0077Conductivity at 25 Cμs/cm904851735899830777
0103Mercury, Dissolvedμg/l< 0.01< 0.01< 0.01< 0.01
0106Cadmium, Dissolvedμg/l0.0170.0110.0140.02
0111Ammoniacal Nitrogen as Nmg/l0.10.10.140.0970.10.077
0116Nitrogen, Total Oxidised as Nmg/l2519272017
0117Nitrate as Nmg/l24.918.926.919.916.9
0118Nitrite as Nmg/l0.0810.120.110.0690.0830.11
0119Ammonia un-ionised as Nmg/l0.002130.001360.001620.000920.001290.00063
0162Alkalinity to pH 4.5 as CaCO3mg/l140130140140190130
0180Orthophosphate, reactive as Pmg/l0.740.270.240.380.290.2
0235Magnesium, Dissolvedmg/l4.83.65.55
0239Calcium, Dissolvedmg/l937998110
0301Carbon, Organic, Dissolved as C :- {DOC}mg/l4.3453.9
6396Turbidityntu2.23.37.3
9901Oxygen, Dissolved, % Saturation%86.37982.991.793.291.1
9924Oxygen, Dissolved as O2mg/l7.497.78.5810.510.710.1

Samples from 13 Dec 2021 to 17 Aug 2022

NotationDeterminandUnits13 Dec
2021
12:47
22 Dec
2021
10:19
13 Jan
2022
12:06
15 Feb
2022
08:07
10 Mar
2022
11:01
27 Apr
2022
12:30
11 May
2022
11:43
15 Jun
2022
09:39
27 Jul
2022
08:20
17 Aug
2022
09:34
0061pH7.657.967.77.867.627.687.587.627.487.55
0076Temperature of Water°C14.37.811.69.713.713.416.61719.520.5
0077Conductivity at 25 Cμs/cm835831844760860844853831476859
0111Ammoniacal Nitrogen as Nmg/l0.0770.110.10.0640.090.0680.0930.10.0970.066
0116Nitrogen, Total Oxidised as Nmg/l21192518232324243024
0117Nitrate as Nmg/l20.918.924.91822.922.923.923.929.923.9
0118Nitrite as Nmg/l0.0540.0870.0730.050.0710.0680.070.0850.0930.094
0119Ammonia un-ionised as Nmg/l0.000870.001560.001040.000830.000910.000770.001060.001290.001090.00094
0135Solids, Suspended at 105 Cmg/l5.756.74.94.2
0162Alkalinity to pH 4.5 as CaCO3mg/l170180150150160150150150140140
0180Orthophosphate, reactive as Pmg/l0.240.540.520.520.470.570.690.70.820.83
6396Turbidityntu2.71.21.61.3< 12.22.32.12.42
9901Oxygen, Dissolved, % Saturation%82.485.989.692.192.278.687.579.571.773.6
9924Oxygen, Dissolved as O2mg/l8.4110.29.7210.59.548.198.517.666.576.61