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sampling point
Wey ( North ) At Hatch Mill, Farnham

Description WEY ( NORTH ) AT HATCH MILL, FARNHAM
Sampling point ID TH-PWER0022
Type Freshwater – Rivers
Status open
Location easting northing: 484560 147030
lat lon: 51.216215, -0.790675
Area West Thames
Sub-Area L&W South Wt
Summary 193 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.

37 determinands have been measured at this site
  • Action taken
  • Alky pH 4.5
  • Ammonia(N)
  • AmoniaTotYSI
  • BOD ATU
  • CHLOR A
  • CHLOROPHYLL
  • COD as O2
  • Calcium - Ca
  • Chloride Ion
  • Chlorophyl-A
  • Cond @ 20C
  • Cond @ 25C
  • Copper - Cu
  • Cu Filtered
  • Hardness
  • Magnesium-Mg
  • N Oxidised
  • NATGRIDREF
  • NH3 un-ion
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • Oil & Grs Vs
  • Orthophospht
  • Oxygen Diss
  • Phenol Odour
  • SI-EC-F
  • SI-GQA
  • SiO2 Rv
  • Sld Sus@105C
  • Temp Water
  • TurbidityNTU
  • Type of Flow
  • Zinc - as Zn
  • pH
  • pH in-situ

Sampling results

Displaying the twenty most recent samples. You can see all 193 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 15 Aug 2023 to 4 Jul 2024

NotationDeterminandUnits15 Aug
2023
12:14
20 Sep
2023
09:55
4 Oct
2023
10:11
8 Nov
2023
12:23
6 Dec
2023
11:20
3 Jan
2024
13:08
7 Feb
2024
11:34
5 Mar
2024
11:47
6 Jun
2024
10:23
4 Jul
2024
10:32
0061pH8.158.088.178.038.027.828.238.188.288.41
0076Temperature of Water°C16.515.513.710.57.499.38.71314.9
0077Conductivity at 25 Cμs/cm691684721539519432599570659689
0085BOD : 5 Day ATUmg/l1.9< 11.1< 31.31.81.71.61.1< 2
0111Ammoniacal Nitrogen as Nmg/l0.032< 0.03< 0.03< 0.03< 0.030.0450.036< 0.03< 0.03< 0.03
0116Nitrogen, Total Oxidised as Nmg/l9.69.19.95.55.74.26.25.37.58
0117Nitrate as Nmg/l9.589.099.895.485.684.186.185.287.477.98
0118Nitrite as Nmg/l0.0180.0150.0130.0210.0170.0190.0250.0220.0270.016
0119Ammonia un-ionised as Nmg/l0.00094< 0.00082< 0.00072< 0.00057< 0.000450.000510.00062< 0.0005< 0.00068< 0.00078
0162Alkalinity to pH 4.5 as CaCO3mg/l230220230200180170220220250250
0180Orthophosphate, reactive as Pmg/l0.410.490.490.270.250.270.180.270.33
9901Oxygen, Dissolved, % Saturation%102.392.195.895.697.589.698100100103.2
9924Oxygen, Dissolved as O2mg/l9.969.169.9110.611.710.311.211.610.510.4

Samples from 6 Nov 2014 to 1 Feb 2017

NotationDeterminandUnits 6 Nov
2014
09:58
2 Mar
2015
14:22
8 Jun
2015
13:22
4 Sep
2015
13:18
30 Nov
2015
11:19
5 Jan
2016
13:53
6 Apr
2016
13:39
6 Jul
2016
12:07
3 Oct
2016
12:58
1 Feb
2017
12:52
0061pH8.058.38.258.098.137.928.688.368.257.95
0076Temperature of Water°C7.97.515.714.19.88.810.416.211.38.4
0077Conductivity at 25 Cμs/cm552572689672659497615652695539
0111Ammoniacal Nitrogen as Nmg/l< 0.03< 0.03< 0.03< 0.030.120.052< 0.03< 0.03< 0.03< 0.03
0116Nitrogen, Total Oxidised as Nmg/l6.465.817.067.887.665.736.016.738.516.68
0117Nitrate as Nmg/l6.455.797.037.877.645.7166.718.56.66
0118Nitrite as Nmg/l0.01370.01730.02750.01160.01770.0210.00940.01520.00880.0222
0119Ammonia un-ionised as Nmg/l< 0.00047< 0.00046< 0.00083< 0.000740.002160.00072< 0.00056< 0.00086< 0.0006< 0.00043
0162Alkalinity to pH 4.5 as CaCO3mg/l173205246217217168239242235188
0180Orthophosphate, reactive as Pmg/l0.3840.2660.3670.3750.3850.2460.1310.2670.4330.27
9901Oxygen, Dissolved, % Saturation%86.4112.692.4100.688.789.2121.197.69195.5
9924Oxygen, Dissolved as O2mg/l10.213.59.1510.31010.313.59.579.9411.2