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sampling point
Birkin Brook U/S Knutsford Etw

Description BIRKIN BROOK U/S KNUTSFORD ETW
Sampling point ID NW-88002574
Type Freshwater – Rivers
Status open
Location easting northing: 376799 379701
lat lon: 53.313718, -2.349688
Area Greater Manchester Merseyside And Cheshire
Sub-Area Manchester
Summary 200 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.

45 determinands have been measured at this site
  • Alky pH 4.5
  • Ammonia(N)
  • BOD ATU
  • CHLOROPHYLL
  • COD as O2
  • Cadmium - Cd
  • Calcium - Ca
  • Cd Filtered
  • Chloride Ion
  • Chromium -Cr
  • Cond @ 20C
  • Cond @ 25C
  • Copper - Cu
  • Cr- Filtered
  • Cu Filtered
  • Hardness
  • Lead - as Pb
  • Magnesium-Mg
  • N Oxidised
  • NH3 un-ion
  • Ni- Filtered
  • Nickel - Ni
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • OMR Smpl Num
  • Oil & Grs Vs
  • Orthophospht
  • Oxygen Diss
  • Pb Filtered
  • Phenol Odour
  • PhenolicOdor
  • SiO2 Rv
  • Sld NV@500C
  • Sld Sus@105C
  • Temp Water
  • Weth-Visibty
  • Weth7Dy-Prec
  • Weth7Dy-Temp
  • Weth7Dy-Vsy
  • WethPresPrec
  • WethPresTemp
  • Zinc - as Zn
  • Zn- Filtered
  • pH

Sampling results

Displaying the twenty most recent samples. You can see all 200 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 26 Jul 2023 to 16 Apr 2024

NotationDeterminandUnits26 Jul
2023
10:31
9 Aug
2023
10:52
5 Sep
2023
11:22
20 Oct
2023
08:43
21 Nov
2023
10:35
5 Dec
2023
10:33
17 Jan
2024
11:57
22 Feb
2024
09:08
20 Mar
2024
09:28
16 Apr
2024
11:06
0061pH7.888.027.847.37.747.48.117.57.777.65
0076Temperature of Water°C14131412.89.55.44.47.89.99.2
0077Conductivity at 25 Cμs/cm510566660296388265559248459361
0085BOD : 5 Day ATUmg/l1.4< 43.52.82.2
0111Ammoniacal Nitrogen as Nmg/l0.0410.220.120.170.0710.210.320.130.0930.12
0116Nitrogen, Total Oxidised as Nmg/l2.11.92.22.11.71.82.31.31.71.3
0117Nitrate as Nmg/l2.081.882.182.081.681.782.271.291.681.28
0118Nitrite as Nmg/l0.0240.0250.020.0240.020.0180.0330.0140.0210.021
0119Ammonia un-ionised as Nmg/l0.000760.0050.002040.000770.000690.000690.003870.000640.0010.00093
0162Alkalinity to pH 4.5 as CaCO3mg/l150180210991408317086160130
0180Orthophosphate, reactive as Pmg/l0.0770.0840.060.0830.0380.0670.0530.0460.0370.04
9901Oxygen, Dissolved, % Saturation%9494.693.188.992.790.895.994.792.593.7
9924Oxygen, Dissolved as O2mg/l9.669.949.579.3910.611.512.411.310.410.8

Samples from 8 Jan 2020 to 18 Jul 2023

NotationDeterminandUnits 8 Jan
2020
12:39
10 Feb
2020
12:12
5 Mar
2020
11:23
6 May
2021
11:16
2 Jun
2021
12:53
5 Jul
2021
11:32
4 Aug
2021
13:22
18 Apr
2023
13:01
22 Jun
2023
12:04
18 Jul
2023
11:47
0061pH7.947.687.848.098.027.648.147.958.237.95
0076Temperature of Water°C8.46.15.48.315.314.71411.115.313.8
0077Conductivity at 25 Cμs/cm546333445530633382680513651591
0085BOD : 5 Day ATUmg/l1.52.51.421.33.51.1
0111Ammoniacal Nitrogen as Nmg/l0.110.110.510.0590.0830.170.0730.0570.110.068
0116Nitrogen, Total Oxidised as Nmg/l2.11.81.82.73.12.82.422.51.9
0117Nitrate as Nmg/l2.081.781.782.683.072.732.371.982.461.88
0118Nitrite as Nmg/l0.0220.0180.0190.0240.0340.0710.0320.0180.0410.022
0119Ammonia un-ionised as Nmg/l0.001560.000730.004610.000950.002230.001940.001780.001010.002950.00146
0135Solids, Suspended at 105 Cmg/l1810020146.1594.4
0162Alkalinity to pH 4.5 as CaCO3mg/l180110140160200110200170190180
0172Chloridemg/l34222738402645
0180Orthophosphate, reactive as Pmg/l0.0580.0350.0290.0510.0520.0660.0720.0490.0670.071
9901Oxygen, Dissolved, % Saturation%90.687.696.5102.9101.593.495.1101.388.990.8
9924Oxygen, Dissolved as O2mg/l10.610.912.212.110.19.459.7711.18.889.38