sampling point
Ray At Tadpole Bridge, Purton
| Description | RAY AT TADPOLE BRIDGE, PURTON |
|---|---|
| Sampling point ID | TH-PUTR0072 |
| Type | Freshwater – Rivers |
| Status | open |
| Location |
easting northing: 411100 189800 lat lon: 51.606923, -1.841105 |
| Area | West Thames |
| Sub-Area | L&W North Wt |
| Summary | 197 samples taken between 2021 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.
40 determinands have been measured at this site
- Action taken
- Alky pH 4.5
- Ammonia(N)
- BOD ATU
- Calcium - Ca
- Chloride Ion
- Cond @ 20C
- Cond @ 25C
- Copper - Cu
- Cu Filtered
- GCMS Semi-Q
- Hardness
- Magnesium-Mg
- N Oxidised
- NH3 un-ion
- Nitrate-N
- Nitrite-N
- O Diss %sat
- Oil & Grs Vs
- Orthophospht
- Oxygen Diss
- PFOS DW
- PFdecncAcDW
- PFdodencAcDW
- PFheptncAcDW
- PFhexncAcDW
- PFnonncAcDW
- PFoctncAcDW
- PFpentncAcDW
- PFtetdncAcDW
- PFundencAcDW
- Phenol Odour
- SI-EC-F
- SI-GQA
- Sld Sus@105C
- Temp Water
- Type of Flow
- Zinc - as Zn
- pH
- pH in-situ
Sampling results
Displaying the twenty most recent samples. You can see all 197 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).
Samples from 31 Oct 2019 to 13 Aug 2021
| Notation | Determinand | Units | 31 Oct 2019 09:44 | 26 Nov 2019 10:48 | 10 Dec 2019 10:10 | 18 Dec 2019 11:41 | 21 Jan 2020 09:40 | 26 Feb 2020 13:02 | 18 May 2021 10:07 | 10 Jun 2021 08:33 | 13 Jul 2021 08:31 | 13 Aug 2021 09:15 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0061 | pH | 7.77 | 7.75 | 7.89 | 7.77 | 8.11 | 7.79 | 7.69 | 7.72 | 7.6 | 7.65 | |
| 0076 | Temperature of Water | °C | 11.4 | 11.3 | 8.6 | 8.4 | 6.6 | 8.7 | 12.3 | 17.6 | 17.5 | 17.6 |
| 0077 | Conductivity at 25 C | μs/cm | 900 | 779 | 794 | 786 | 836 | 818 | 679 | 1016 | 760 | 925 |
| 0111 | Ammoniacal Nitrogen as N | mg/l | 0.062 | 0.08 | 0.082 | 0.092 | 0.12 | 0.085 | 0.14 | 0.053 | 0.058 | 0.047 |
| 0116 | Nitrogen, Total Oxidised as N | mg/l | 13 | 8.5 | 9.8 | 9.6 | 10 | 9.9 | 7 | 17 | 13 | 20 |
| 0117 | Nitrate as N | mg/l | 13 | 8.46 | 9.76 | 9.57 | 9.97 | 9.88 | 6.93 | 16.9 | 12.9 | 20 |
| 0118 | Nitrite as N | mg/l | 0.037 | 0.041 | 0.04 | 0.03 | 0.032 | 0.021 | 0.07 | 0.054 | 0.067 | 0.045 |
| 0119 | Ammonia un-ionised as N | mg/l | 0.00074 | 0.00091 | 0.00105 | 0.00088 | 0.00171 | 0.00087 | 0.0015 | 0.0009 | 0.00074 | 0.00068 |
| 0162 | Alkalinity to pH 4.5 as CaCO3 | mg/l | 240 | 240 | 240 | 240 | 250 | 240 | 180 | 200 | 160 | 150 |
| 0180 | Orthophosphate, reactive as P | mg/l | 0.29 | 0.2 | 0.2 | 0.32 | 0.28 | 0.22 | 0.28 | 0.53 | 0.54 | 0.32 |
| 9901 | Oxygen, Dissolved, % Saturation | % | 86.1 | 86.8 | 84.1 | 70.1 | 72.1 | 87.6 | 77.8 | 75.5 | 73.8 | 77.8 |
| 9924 | Oxygen, Dissolved as O2 | mg/l | 9.39 | 9.49 | 9.8 | 8.21 | 8.83 | 10.2 | 8.31 | 7.19 | 7.04 | 7.41 |