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sampling point
Eastern Avon At Swan Bridge Pewsey

Description EASTERN AVON AT SWAN BRIDGE PEWSEY
Sampling point ID SW-50211468
Type Freshwater – Rivers
Status open
Location easting northing: 416286 159628
lat lon: 51.335509, -1.767601
Area Wessex
Sub-Area East Wessex
Summary 182 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.

35 determinands have been measured at this site
  • Action taken
  • Alky pH 4.5
  • Ammonia(N)
  • BOD ATU
  • COD as O2
  • Calcium - Ca
  • Chlorophyl-A
  • Cond @ 25C
  • Cu Filtered
  • Fe- Filt
  • Hardness
  • Hdnss Ca
  • Hdnss Mg
  • Iron - as Fe
  • Magnesium-Mg
  • N Inorganic
  • N Oxidised
  • N-Kjeldahl
  • NH3 un-ion
  • NO FLOW/SAMP
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • Orthophospht
  • Oxygen Diss
  • Phosphate
  • Potassium- K
  • SiO2 Rv
  • Sld Sus@105C
  • Temp Water
  • TurbidityNTU
  • Type of Flow
  • WethPresPrec
  • Zinc - as Zn
  • pH

Sampling results

Displaying the twenty most recent samples. You can see all 182 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 16 Aug 2023 to 24 Jun 2024

NotationDeterminandUnits16 Aug
2023
11:06
26 Sep
2023
11:14
20 Oct
2023
11:08
21 Nov
2023
11:50
7 Dec
2023
10:13
15 Jan
2024
12:46
27 Feb
2024
11:34
17 Apr
2024
11:44
30 May
2024
13:45
24 Jun
2024
13:30
0061pH8.027.937.927.747.757.857.828.057.998.12
0076Temperature of Water°C13.413.212.310.68.36.87.610.112.813.5
0077Conductivity at 25 Cμs/cm643631561585577599547610625640
0085BOD : 5 Day ATUmg/l< 11.41.1< 1
0111Ammoniacal Nitrogen as Nmg/l< 0.030.0310.410.034< 0.03< 0.030.041< 0.03< 0.03< 0.03
0116Nitrogen, Total Oxidised as Nmg/l7.375.56.7776.56.76.87.5
0117Nitrate as Nmg/l7.296.985.476.696.996.996.496.696.787.49
0118Nitrite as Nmg/l0.0120.0160.0270.0150.0140.010.0130.0110.0170.014
0119Ammonia un-ionised as Nmg/l< 0.00070.000610.007390.00036< 0.00027< 0.000310.00042< 0.00055< 0.00066< 0.00071
0162Alkalinity to pH 4.5 as CaCO3mg/l260250220230210240210250260260
0180Orthophosphate, reactive as Pmg/l0.170.190.370.260.280.250.290.240.240.2
9901Oxygen, Dissolved, % Saturation%94.892.882.491.291.592.589.696.895.495.2
9924Oxygen, Dissolved as O2mg/l9.889.718.810.110.711.310.710.910.19.9

Samples from 17 Aug 2022 to 28 Jul 2023

NotationDeterminandUnits17 Aug
2022
13:45
30 Sep
2022
11:26
24 Oct
2022
12:06
21 Nov
2022
11:28
8 Dec
2022
11:32
31 Jan
2023
10:15
23 Feb
2023
12:03
13 Mar
2023
10:42
28 Jun
2023
13:01
28 Jul
2023
11:44
0061pH7.878.077.737.828.117.97.977.97.847.9
0076Temperature of Water°C14.810.112.18.95.78.18.510.114.113.9
0077Conductivity at 25 Cμs/cm641657642579650620625615642639
0085BOD : 5 Day ATUmg/l< 1
0111Ammoniacal Nitrogen as Nmg/l< 0.03< 0.03< 0.03< 0.03< 0.03< 0.030.06< 0.03< 0.03< 0.03
0116Nitrogen, Total Oxidised as Nmg/l7.37.766.57.57.26.76.47.16.9
0117Nitrate as Nmg/l7.297.695.996.497.497.196.696.397.096.89
0118Nitrite as Nmg/l0.0130.00850.0110.0150.0140.0120.00930.00990.010.011
0119Ammonia un-ionised as Nmg/l< 0.00058< 0.00055< 0.00035< 0.00034< 0.0004< 0.000380.00092< 0.00044< 0.00051< 0.00058
0162Alkalinity to pH 4.5 as CaCO3mg/l250260220220260240240240260250
0180Orthophosphate, reactive as Pmg/l0.160.110.160.160.140.190.160.170.170.18
9901Oxygen, Dissolved, % Saturation%97.5103.790.190.494.292.393.696.193.193.5
9924Oxygen, Dissolved as O2mg/l9.8511.79.6710.511.810.910.910.89.559.63