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sampling point
U/S Ashurst Weir

Description RIVER MEDWAY UPSTREAM OF ASHURST WEIR
Sampling point ID SO-E0000411
Type Freshwater – Rivers
Status open
Location easting northing: 550669 138754
lat lon: 51.12825, 0.151825
Area Kent And South London
Sub-Area L&W Kent And East Sussex Ksl
Summary 225 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.

33 determinands have been measured at this site
  • 17alpha EE2
  • 17beta E2
  • Alky pH 4.5
  • Ammonia(N)
  • BOD ATU
  • COD as O2
  • COPA
  • Calcium - Ca
  • Chloride Ion
  • Cond @ 20C
  • Cond @ 25C
  • Copper - Cu
  • Cu Filtered
  • Hardness
  • MR Screen
  • Magnesium-Mg
  • N Oxidised
  • NATGRIDREF
  • NH3 un-ion
  • NO FLOW/SAMP
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • OestroneE1
  • Oil & Grs Vs
  • Orthophospht
  • Oxygen Diss
  • Phenol Odour
  • Sld Sus@105C
  • Temp Water
  • Zinc - as Zn
  • Zn- Filtered
  • pH

Sampling results

Displaying the twenty most recent samples. You can see all 225 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 14 Sep 2023 to 25 Jul 2024

NotationDeterminandUnits14 Sep
2023
11:25
30 Oct
2023
13:22
28 Nov
2023
12:15
14 Dec
2023
11:25
24 Jan
2024
13:00
21 Feb
2024
13:50
20 Mar
2024
12:16
16 Apr
2024
12:45
30 May
2024
13:53
25 Jul
2024
11:21
0061pH7.447.117.297.267.387.297.377.417.377.62
0076Temperature of Water°C16.512.17.77.38.69.311.310.214.716.9
0077Conductivity at 25 Cμs/cm422211231202261225229241278393
0085BOD : 5 Day ATUmg/l1.41.11.2< 1< 4
0111Ammoniacal Nitrogen as Nmg/l< 0.030.0510.0390.0750.260.0470.046< 0.03< 0.03< 0.03
0116Nitrogen, Total Oxidised as Nmg/l5.92.12.21.92.42.32.535.1
0117Nitrate as Nmg/l5.892.092.191.882.392.282.492.995.09
0118Nitrite as Nmg/l0.00920.0110.0150.0170.170.0150.0190.0140.0150.0077
0119Ammonia un-ionised as Nmg/l< 0.000250.000140.000120.000210.001040.000160.00022< 0.00014< 0.00018< 0.00038
0162Alkalinity to pH 4.5 as CaCO3mg/l69424543464546475363
0180Orthophosphate, reactive as Pmg/l0.470.0920.0730.0470.110.090.0890.110.170.39
9901Oxygen, Dissolved, % Saturation%80.790.192.494.696.596.698.397.291.693.8
9924Oxygen, Dissolved as O2mg/l7.869.671111.411.211.110.710.99.279.06

Samples from 11 Nov 2019 to 10 Aug 2023

NotationDeterminandUnits11 Nov
2019
11:13
12 Dec
2019
13:27
20 Jan
2020
11:43
6 Feb
2020
11:46
10 Mar
2020
12:03
24 Apr
2023
14:23
24 May
2023
13:53
23 Jun
2023
14:33
17 Jul
2023
12:45
10 Aug
2023
10:24
0061pH8.157.717.547.837.67.127.857.417.527.74
0076Temperature of Water°C8.76.35.45.6910.915.318.716.515.6
0077Conductivity at 25 Cμs/cm242242242247194205314311346377
0085BOD : 5 Day ATUmg/l< 1
0111Ammoniacal Nitrogen as Nmg/l0.050.0460.0610.050.12< 0.03< 0.030.048< 0.03< 0.03
0116Nitrogen, Total Oxidised as Nmg/l2.662.53.22.91.61.73.73.34.85.8
0117Nitrate as Nmg/l2.642.493.182.881.591.663.693.284.795.79
0118Nitrite as Nmg/l0.02050.0140.0170.0180.0130.0440.0130.0220.0140.0091
0119Ammonia un-ionised as Nmg/l0.000830.000330.000280.000450.00082< 8.0e-05< 0.000570.00043< 0.0003< 0.00046
0162Alkalinity to pH 4.5 as CaCO3mg/l48484546444249595963
0180Orthophosphate, reactive as Pmg/l0.1120.110.0970.120.0920.0920.20.250.320.26
9901Oxygen, Dissolved, % Saturation%9894.7100.696.195.596.798.68882.782.6
9924Oxygen, Dissolved as O2mg/l11.411.712.712.11110.79.858.198.068.2