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sampling point
Downstream Coldwaltham Stw Eqsd

Description DOWNSTREAM OF COLDWALTHAM STW EQSD, WEST SUSSEX
Sampling point ID SO-G0006533
Type Freshwater – Unspecified
Status open
Location easting northing: 502185 115382
lat lon: 50.928847, -0.547341
Area Solent And South Downs
Sub-Area L&W East Ssd
Summary 32 samples taken between 2019 and 2012

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.

19 determinands have been measured at this site
  • Alky pH 4.5
  • Ammonia(N)
  • CHLOROPHYLL
  • Chloride Ion
  • Cond @ 25C
  • Fe- Filt
  • N Oxidised
  • NH3 un-ion
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • Orthophospht
  • Oxygen Diss
  • Phosphorus-P
  • SiO2 Rv
  • Sld Sus@105C
  • Temp Water
  • TurbidityNTU
  • pH

Sampling results

Displaying the twenty most recent samples. You can see all 32 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 20 Mar 2018 to 25 Feb 2019

NotationDeterminandUnits20 Mar
2018
14:02
18 Apr
2018
14:14
5 Jun
2018
14:59
31 Jul
2018
15:31
30 Aug
2018
12:02
30 Oct
2018
15:21
29 Nov
2018
14:43
17 Dec
2018
14:55
28 Jan
2019
14:39
25 Feb
2019
13:01
0061pH7.937.987.827.657.737.887.57.577.857.9
0076Temperature of Water°C514.216.720.216.2810.26.65.29.1
0077Conductivity at 25 Cμs/cm410401405445445451352271421442
0111Ammoniacal Nitrogen as Nmg/l0.078< 0.030.080.2110.0450.0770.0940.0750.0770.056
0116Nitrogen, Total Oxidised as Nmg/l3.654.094.655.095.065.476.133.895.286.05
0117Nitrate as Nmg/l3.634.074.65.035.035.446.093.875.246.02
0118Nitrite as Nmg/l0.02210.02150.05430.06120.0340.03480.04310.02220.03760.0305
0119Ammonia un-ionised as Nmg/l0.00084< 0.000710.001590.003680.00070.000920.000560.00040.00070.00076
0135Solids, Suspended at 105 Cmg/l22.426.59.0710.71814.945.244.317.311.7
0162Alkalinity to pH 4.5 as CaCO3mg/l1101411261171141226859102108
0172Chloridemg/l36.925.325.833.636.6323022.331.331.6
0180Orthophosphate, reactive as Pmg/l0.060.0790.1740.1860.2740.2140.1040.0770.1320.146
0182Silica, reactive as SiO2mg/l10.112.111.612.811.712.4109.2312.311.6
0348Phosphorus, Total as Pmg/l0.1550.1660.2540.2660.3470.2550.2850.2290.1860.198
6396Turbidityntu24.521.112.26.218.812.736.960.819.411.9
7887Chlorophyll : Acetone Extractμg/l711.610.517.9858.33.73.25.1
9901Oxygen, Dissolved, % Saturation%96.888.957.392.156.777.470.871.677.981.1
9924Oxygen, Dissolved as O2mg/l12.39.15.568.325.569.157.948.779.889.33

Samples from 12 Feb 2016 to 14 Feb 2018

NotationDeterminandUnits12 Feb
2016
11:07
17 Jun
2016
11:43
7 Jul
2016
15:01
5 Oct
2016
12:35
6 Jan
2017
10:08
31 Aug
2017
13:30
26 Oct
2017
13:41
9 Nov
2017
13:44
9 Jan
2018
14:21
14 Feb
2018
13:39
0061pH7.437.827.858.017.9
0076Temperature of Water°C15.813.98.56.84.8
0077Conductivity at 25 Cμs/cm551468486354365
0111Ammoniacal Nitrogen as Nmg/l0.0520.0650.1030.080.126
0116Nitrogen, Total Oxidised as Nmg/l5.84.446.523.463.48
0117Nitrate as Nmg/l5.784.46.483.443.45
0118Nitrite as Nmg/l0.01890.03950.04420.02420.0283
0119Ammonia un-ionised as Nmg/l0.00040.001050.00120.001150.00125
0135Solids, Suspended at 105 Cmg/l1920.910.218.456.3
0162Alkalinity to pH 4.5 as CaCO3mg/l16011512610795
0172Chloridemg/l32.929.73824.831.9
0180Orthophosphate, reactive as Pmg/l0.1560.1780.180.1060.143
0182Silica, reactive as SiO2mg/l11.112.81312.19.79
6396Turbidityntu15.215.59.620.363.4
6460Iron, Dissolvedμg/l101< 100< 100122186
9901Oxygen, Dissolved, % Saturation%67.471.283.281.292.4
9924Oxygen, Dissolved as O2mg/l6.667.339.719.8911.8