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sampling point
River Stour At Longham

Description RIVER STOUR AT LONGHAM
Sampling point ID SW-50370369
Type Freshwater – Rivers
Status open
Location easting northing: 406383 97290
lat lon: 50.775154, -1.910833
Area Wessex
Sub-Area East Wessex
Summary 262 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.

51 determinands have been measured at this site
  • 4-nonPhenol
  • Action taken
  • Alky pH 4.5
  • Aluminium-Al
  • Ammonia(N)
  • BOD ATU
  • C - Org Filt
  • CHLOR A
  • CHLOROPHYLL
  • Cadmium - Cd
  • Calcium - Ca
  • Chlorophyl-A
  • Chromium -Cr
  • Cond @ 20C
  • Cond @ 25C
  • Copper - Cu
  • Cu Filtered
  • Dieldrin
  • Diuron
  • Fe- Filt
  • Hardness
  • Hdnss Ca
  • Hdnss Mg
  • Isoproturon
  • Lead - as Pb
  • MR Screen
  • Magnesium-Mg
  • Mercury - Hg
  • Mineral Oils
  • N Inorganic
  • N Oxidised
  • NH3 un-ion
  • Nickel - Ni
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • Oil & Grs Vs
  • Orthophospht
  • Oxygen Diss
  • Phenol Odour
  • PhenolicOdor
  • Potassium- K
  • SiO2 Rv
  • Sld Sus@105C
  • Temp Water
  • Type of Flow
  • WethPresPrec
  • Zinc - as Zn
  • pH
  • pH in-situ
  • ptOctylPheno

Sampling results

Displaying the twenty most recent samples. You can see all 262 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 9 Apr 2021 to 12 Jan 2024

NotationDeterminandUnits 9 Apr
2021
10:19
13 May
2021
11:19
8 Jun
2021
09:57
14 Jul
2021
09:59
10 Aug
2021
10:05
11 Oct
2021
11:13
5 Jan
2022
11:34
1 Apr
2022
12:33
1 Jul
2022
09:43
12 Jan
2024
11:45
0050Leadμg/l< 2< 2< 2< 2< 2< 2< 2
0061pH8.328.518.177.968.36
0076Temperature of Water°C9.713.416.316.916.7
0077Conductivity at 25 Cμs/cm609622602579606
0108Cadmiumμg/l< 0.1< 0.1< 0.1< 0.1< 0.1< 0.1< 0.1
0111Ammoniacal Nitrogen as Nmg/l< 0.030.046< 0.030.0350.031
0116Nitrogen, Total Oxidised as Nmg/l8.76.96.75.96.4
0117Nitrate as Nmg/l8.696.876.675.866.37
0118Nitrite as Nmg/l0.0140.0350.0290.0380.033
0119Ammonia un-ionised as Nmg/l< 0.000540.00108< 0.000870.000960.00092
0162Alkalinity to pH 4.5 as CaCO3mg/l240220230220220
0180Orthophosphate, reactive as Pmg/l0.0890.160.180.220.27
3164Chromiumμg/l< 0.5< 0.50.571.2< 0.5< 0.5< 0.5
6057Aluminiumμg/l26110190440571478
6452Copperμg/l1.72.23.741.11.41.2
6455Zincμg/l< 5< 5< 58.3< 5< 5< 5
6460Iron, Dissolvedμg/l< 304794780120< 30< 30
6462Nickelμg/l1.21.51.73.1< 11.32
9901Oxygen, Dissolved, % Saturation%94.697.198.191.493.9
9924Oxygen, Dissolved as O2mg/l10.710.19.68.839.11

Samples from 13 Dec 2019 to 8 Mar 2021

NotationDeterminandUnits13 Dec
2019
10:27
9 Jan
2020
09:56
5 Feb
2020
10:35
11 Mar
2020
10:04
22 Oct
2020
10:27
5 Nov
2020
10:42
2 Dec
2020
10:53
5 Jan
2021
12:05
5 Feb
2021
09:33
8 Mar
2021
09:43
0061pH7.888.087.927.757.787.267.928.077.938.05
0076Temperature of Water°C7.610.28.110.2139.17.85.88.47.1
0077Conductivity at 25 Cμs/cm482587541524585475591590534603
0111Ammoniacal Nitrogen as Nmg/l0.0560.0310.0350.0630.066< 0.030.034< 0.030.030.038
0116Nitrogen, Total Oxidised as Nmg/l5.487.35.96.64.87.38.26.58.6
0117Nitrate as Nmg/l5.377.987.275.876.564.777.288.186.488.58
0118Nitrite as Nmg/l0.0330.0220.0260.0350.0370.0260.0160.0170.0190.018
0119Ammonia un-ionised as Nmg/l0.000650.000570.000460.000660.00091< 9.0e-050.00044< 0.00040.000420.00056
0162Alkalinity to pH 4.5 as CaCO3mg/l180230220220220280220230210230
0180Orthophosphate, reactive as Pmg/l0.190.110.130.120.290.220.140.0950.110.089
9901Oxygen, Dissolved, % Saturation%89.494.591.291.591.688.590.494.991.795.2
9924Oxygen, Dissolved as O2mg/l10.710.610.810.39.6310.210.711.910.711.5