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sampling point
Old Bedford R. Welmore Lake Sluice

Description OLD BEDFORD R. WELMORE LAKE SLUICE
Sampling point ID AN-26M51
Type Freshwater – Rivers
Status open
Location easting northing: 557159 298693
lat lon: 52.563363, 0.317149
Area Cambridgeshire And Bedfordshire
Sub-Area Brampton Team Sub Area
Summary 399 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.

34 determinands have been measured at this site
  • Alky pH 4.5
  • Ammonia(N)
  • BOD ATU
  • CHLOROPHYLL
  • COD as O2
  • Chloride Ion
  • Cond - Field
  • Cond @ 20C
  • Cond @ 25C
  • Linuron
  • N Inorganic
  • N Oxidised
  • NATGRIDREF
  • NH3 un-ion
  • NO FLOW/SAMP
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • O Diss% Satn
  • O Dissolved
  • Oil & Grs Vs
  • Orthophospht
  • Oxygen Diss
  • P - Filtered
  • Phosphorus-P
  • SALinsitu
  • Salinity
  • SiO2 Rv
  • Sld Sus@105C
  • Temp Water
  • Turbidity
  • TurbidityNTU
  • pH
  • pH Inst unit

Sampling results

Displaying the twenty most recent samples. You can see all 399 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 11 Aug 2023 to 15 Jul 2024

NotationDeterminandUnits11 Aug
2023
12:17
18 Sep
2023
09:09
9 Oct
2023
12:01
6 Nov
2023
14:20
5 Dec
2023
14:27
2 Jan
2024
12:37
9 Feb
2024
13:53
8 Mar
2024
13:54
17 Jun
2024
11:44
15 Jul
2024
15:02
0061pH7.498.11
0076Temperature of Water°C21.818.717.49.13.47.17.27.717.119.2
0077Conductivity at 25 Cμs/cm92484111729809721109970763548898
0085BOD : 5 Day ATUmg/l3.71.941.8< 41.21.82.21.54.9
0092Chemical Oxygen Demand :- {COD}mg/l4734363724281921
0111Ammoniacal Nitrogen as Nmg/l0.0460.12< 0.03< 0.03< 0.030.190.057< 0.030.11< 0.03
0116Nitrogen, Total Oxidised as Nmg/l2.30.260.696.183.16.7< 0.24.7
0117Nitrate as Nmg/l2.220.2530.6475.947.983.066.680.1884.58
0118Nitrite as Nmg/l0.0830.00750.0430.160.020.0440.0260.0250.0120.12
0119Ammonia un-ionised as Nmg/l0.00106< 0.00107
0135Solids, Suspended at 105 Cmg/l69201574171618
0162Alkalinity to pH 4.5 as CaCO3mg/l170220
0172Chloridemg/l92861106656976338
0180Orthophosphate, reactive as Pmg/l< 0.010.280.080.170.0940.050.0770.260.095
0182Silica, reactive as SiO2mg/l0.711.110164.6115.46.9
0348Phosphorus, Total as Pmg/l0.190.380.160.220.110.090.160.14
7887Chlorophyll : Acetone Extractμg/l12031100212.17.31646
9901Oxygen, Dissolved, % Saturation%100.758.7155.179.287.793.389.8107.362.6129.3
9924Oxygen, Dissolved as O2mg/l8.815.4614.89.1111.711.310.812.86.0211.9

Samples from 6 Oct 2022 to 20 Jul 2023

NotationDeterminandUnits 6 Oct
2022
10:45
7 Nov
2022
09:06
14 Dec
2022
13:37
18 Jan
2023
10:08
8 Feb
2023
12:32
2 Mar
2023
12:00
24 May
2023
12:02
5 Jun
2023
11:27
30 Jun
2023
10:39
20 Jul
2023
13:36
0061pH7.98.118.178.34
0076Temperature of Water°C13.310.9124.56.118.116.320.921.1
0077Conductivity at 25 Cμs/cm10371034926849868932808803973931
0085BOD : 5 Day ATUmg/l31.31.51.22.134.73.23.62.5
0092Chemical Oxygen Demand :- {COD}mg/l3221292919254252
0111Ammoniacal Nitrogen as Nmg/l< 0.030.320.057< 0.03< 0.03< 0.030.0710.250.120.055
0116Nitrogen, Total Oxidised as Nmg/l< 0.21.412139.13.31.70.860.680.48
0117Nitrate as Nmg/l< 0.1961.311.9139.083.291.610.8320.6190.447
0118Nitrite as Nmg/l< 0.0040.0970.110.040.0250.010.0870.0280.0610.033
0135Solids, Suspended at 105 Cmg/l22148.43.665.34.213129.2
0172Chloridemg/l1201206250566957607482
0180Orthophosphate, reactive as Pmg/l0.310.170.230.140.0690.0130.260.620.60.42
0182Silica, reactive as SiO2mg/l3.57.5148.71.90.234.37.2117.4
0348Phosphorus, Total as Pmg/l0.420.230.270.160.10.0570.350.830.720.5
7887Chlorophyll : Acetone Extractμg/l62132.48.6232036
9901Oxygen, Dissolved, % Saturation%85.469.280.285.498.9103.274.151.367.5121.4
9924Oxygen, Dissolved as O2mg/l8.917.6211.411.812.812.86.985.026.0110.8