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sampling point
R.Witham Claypole Bridge

Description R.WITHAM CLAYPOLE BRIDGE
Sampling point ID AN-WITHA
Type Freshwater – Rivers
Status open
Location easting northing: 484246 348884
lat lon: 53.030606, -0.745229
Area Lincolnshire And Northamptonshire
Sub-Area North & South Team Sub Area
Summary 248 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.

27 determinands have been measured at this site
  • Alky pH 4.5
  • Ammonia(N)
  • BOD ATU
  • CHLOR A
  • CHLOROPHYLL
  • COD as O2
  • Chloride Ion
  • Cond @ 20C
  • Cond @ 25C
  • N Inorganic
  • N Oxidised
  • NH3 un-ion
  • NO FLOW/SAMP
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • O Diss% Satn
  • O Dissolved
  • Orthophospht
  • Oxygen Diss
  • 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 248 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 4 Sep 2023 to 17 Jun 2024

NotationDeterminandUnits 4 Sep
2023
11:23
23 Oct
2023
11:32
20 Nov
2023
13:30
11 Dec
2023
13:44
15 Jan
2024
11:19
19 Feb
2024
11:04
19 Mar
2024
11:09
16 Apr
2024
09:18
13 May
2024
11:45
17 Jun
2024
10:36
0061pH7.947.768.127.918.317.928.198.138.498.31
0076Temperature of Water°C17.511.110.184.89.710.79.216.315.2
0077Conductivity at 25 Cμs/cm954719746621806568760771835776
0085BOD : 5 Day ATUmg/l2.11.41.81.51.7
0111Ammoniacal Nitrogen as Nmg/l< 0.030.0560.0560.0610.10.110.076< 0.03< 0.03< 0.03
0116Nitrogen, Total Oxidised as Nmg/l5.810119.4137.81110118.4
0117Nitrate as Nmg/l5.769.9510.99.3612.97.77119.9710.98.33
0118Nitrite as Nmg/l0.0430.0460.0860.040.0510.0290.0430.0340.0520.067
0119Ammonia un-ionised as Nmg/l< 0.000830.000640.001030.000780.001240.001640.00146< 0.00052< 0.00087< 0.0008
0162Alkalinity to pH 4.5 as CaCO3mg/l240180210180220170210200220200
0180Orthophosphate, reactive as Pmg/l0.330.150.110.0860.0690.0930.10.0810.120.19
9901Oxygen, Dissolved, % Saturation%98.193.197.197.5100.595.8101.9102.7131.4106.8
9924Oxygen, Dissolved as O2mg/l9.3610.210.911.512.910.911.311.812.910.7

Samples from 8 Nov 2021 to 10 Aug 2023

NotationDeterminandUnits 8 Nov
2021
10:51
3 Dec
2021
10:51
17 Jan
2022
11:21
4 Feb
2022
11:26
2 Mar
2022
12:08
24 Apr
2023
11:40
17 May
2023
09:25
20 Jun
2023
12:22
20 Jul
2023
10:17
10 Aug
2023
11:09
0061pH8.268.278.228.278.248.168.347.97.798.16
0076Temperature of Water°C8.14.14.87.77.210.31317.715.917.4
0077Conductivity at 25 Cμs/cm938963896935865783836879860914
0085BOD : 5 Day ATUmg/l1.31.6< 31.71.91.41.5
0111Ammoniacal Nitrogen as Nmg/l0.0670.140.0580.1< 0.03< 0.03< 0.030.0750.04< 0.03
0116Nitrogen, Total Oxidised as Nmg/l8.69.913141210108.97.37.4
0117Nitrate as Nmg/l8.549.8312.913.9129.989.968.847.247.38
0118Nitrite as Nmg/l0.0570.0750.0510.10.0280.0250.0390.0610.0570.022
0119Ammonia un-ionised as Nmg/l0.001060.001660.000720.00154< 0.00045< 0.00056< 0.000680.001920.0007< 0.00094
0162Alkalinity to pH 4.5 as CaCO3mg/l230220230220210220210230220230
0180Orthophosphate, reactive as Pmg/l0.290.240.130.160.0920.120.150.220.250.25
9901Oxygen, Dissolved, % Saturation%99.1101.297.8103.3101.8102.1105.386.197.2108.1
9924Oxygen, Dissolved as O2mg/l11.713.212.512.312.311.411.18.189.5910.3