sampling point
Filchampstead Brook Above Thames
| Description | FILCHAMPSTEAD BROOK ABOVE THAMES |
|---|---|
| Sampling point ID | TH-PTHR0026 |
| Type | Freshwater – Rivers |
| Status | open |
| Location |
easting northing: 444567 207126 lat lon: 51.761046, -1.355656 |
| Area | West Thames |
| Sub-Area | L&W North Wt |
| Summary | 220 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.
40 determinands have been measured at this site
- Action taken
- Alky pH 4.5
- Ammonia(N)
- BOD ATU
- C - Org Filt
- CHLOR A
- CHLOROPHYLL
- Ca Filtered
- Calcium - Ca
- Cd Filtered
- Chloride Ion
- Cond @ 25C
- Cr- Filtered
- Cu BLM Bio
- Cu Filtered
- Fe- Filt
- Hardness
- Magnesium-Mg
- Mn BLM Bio
- Mn- Filtered
- N Oxidised
- NH3 un-ion
- NO FLOW/SAMP
- Ni BLM Bio
- Ni- Filtered
- Nitrate-N
- Nitrite-N
- O Diss %sat
- Orthophospht
- Oxygen Diss
- Pb BLM Bio
- Pb Filtered
- SI-GQA
- Sld Sus@105C
- Temp Water
- Type of Flow
- Zn BLM Bio
- Zn- Filtered
- pH
- pH in-situ
Sampling results
Displaying the twenty most recent samples. You can see all 220 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).
Samples from 11 Aug 2023 to 2 Jul 2024
Samples from 8 Aug 2016 to 15 May 2017
| Notation | Determinand | Units | 8 Aug 2016 13:46 | 30 Sep 2016 13:38 | 19 Oct 2016 12:56 | 11 Nov 2016 12:38 | 2 Dec 2016 14:12 | 19 Jan 2017 14:40 | 8 Feb 2017 11:28 | 10 Mar 2017 16:10 | 19 Apr 2017 15:39 | 15 May 2017 09:29 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0061 | pH | 7.77 | 7.72 | 7.84 | 7.62 | 7.83 | 7.81 | 7.9 | 7.63 | |||
| 0076 | Temperature of Water | °C | 18.3 | 11.5 | 7.4 | 6.1 | 5.2 | 5.8 | 8.9 | 11.9 | ||
| 0077 | Conductivity at 25 C | μs/cm | 583 | 738 | 804 | 806 | 847 | 820 | 809 | 691 | ||
| 0111 | Ammoniacal Nitrogen as N | mg/l | < 0.03 | < 0.03 | 0.047 | 0.052 | 0.031 | 0.039 | < 0.03 | 0.044 | ||
| 0116 | Nitrogen, Total Oxidised as N | mg/l | 2.81 | 3.33 | 2.67 | 3.84 | 4.2 | 11.1 | 12.2 | 7.76 | 3.78 | 2.55 |
| 0117 | Nitrate as N | mg/l | 2.81 | 3.33 | 2.66 | 3.83 | 4.19 | 11.1 | 12.2 | 7.75 | 3.77 | 2.54 |
| 0118 | Nitrite as N | mg/l | < 0.004 | < 0.004 | 0.0078 | 0.013 | 0.0093 | 0.0104 | 0.0129 | 0.0084 | 0.0089 | 0.0145 |
| 0119 | Ammonia un-ionised as N | mg/l | < 0.0006 | < 0.00032 | 0.00049 | 0.0003 | 0.00027 | 0.00034 | < 0.0004 | 0.0004 | ||
| 0162 | Alkalinity to pH 4.5 as CaCO3 | mg/l | 161 | 207 | 227 | 251 | 240 | 226 | 230 | 222 | ||
| 0180 | Orthophosphate, reactive as P | mg/l | 0.161 | 0.164 | 0.166 | 0.166 | 0.113 | 0.099 | 0.1 | 0.137 | ||
| 9901 | Oxygen, Dissolved, % Saturation | % | 82.3 | 67.8 | 70.1 | 76.8 | 88.4 | 84.7 | 104.9 | 55.6 | ||
| 9924 | Oxygen, Dissolved as O2 | mg/l | 7.72 | 7.37 | 8.41 | 9.52 | 11.2 | 10.6 | 12.1 | 5.99 |