sampling point
Twyford Brook At Twyford Mill, Twyford
| Description | TWYFORD BROOK AT TWYFORD MILL, TWYFORD |
|---|---|
| Sampling point ID | TH-PLDR0079 |
| Type | Freshwater – Unspecified |
| Status | open |
| Location |
easting northing: 478550 175950 lat lon: 51.477061, -0.870332 |
| Area | West Thames |
| Sub-Area | L&W South Wt |
| Summary | 86 samples taken between 2024 and 2010 |
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.
28 determinands have been measured at this site
- Alky pH 4.5
- Ammonia(N)
- BOD ATU
- C - Org Filt
- Ca Filtered
- Calcium - Ca
- Cd Filtered
- Cond @ 25C
- Cr- Filtered
- Cu Filtered
- Fe- Filt
- Hardness
- Magnesium-Mg
- Mn- Filtered
- N Oxidised
- NH3 un-ion
- NO FLOW/SAMP
- Ni- Filtered
- Nitrate-N
- Nitrite-N
- O Diss %sat
- Orthophospht
- Oxygen Diss
- Pb Filtered
- Sld Sus@105C
- Temp Water
- Zn- Filtered
- pH
Sampling results
Displaying the twenty most recent samples. You can see all 86 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).
Samples from 2 Jun 2016 to 4 Jul 2024
Samples from 21 Jul 2015 to 17 May 2016
| Notation | Determinand | Units | 21 Jul 2015 15:11 | 11 Aug 2015 10:38 | 1 Sep 2015 12:35 | 5 Oct 2015 14:52 | 4 Nov 2015 16:31 | 23 Nov 2015 14:59 | 6 Jan 2016 11:54 | 4 Feb 2016 11:22 | 8 Mar 2016 12:42 | 17 May 2016 14:24 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0061 | pH | 7.36 | 7.84 | 7.44 | 7.67 | 7.39 | 7.75 | 7.88 | 7.6 | |||
| 0076 | Temperature of Water | °C | 15.2 | 15.9 | 12.2 | 5.1 | 7.8 | 7.5 | 4.5 | 13 | ||
| 0077 | Conductivity at 25 C | μs/cm | 531 | 139 | 743 | 780 | 552 | 733 | 832 | 793 | ||
| 0111 | Ammoniacal Nitrogen as N | mg/l | 0.068 | < 0.03 | 0.032 | < 0.03 | 0.08 | 0.032 | 0.05 | 0.08 | ||
| 0116 | Nitrogen, Total Oxidised as N | mg/l | 0.93 | < 0.2 | 0.44 | 10.4 | 7.97 | 5.34 | 3.82 | 1.93 | ||
| 0117 | Nitrate as N | mg/l | 0.894 | 0.189 | 0.429 | 10.4 | 7.91 | 5.32 | 3.8 | 1.87 | ||
| 0118 | Nitrite as N | mg/l | 0.0364 | 0.0111 | 0.0106 | 0.0431 | 0.0566 | 0.0247 | 0.0186 | 0.0637 | ||
| 0119 | Ammonia un-ionised as N | mg/l | 0.00042 | < 0.00059 | 0.00019 | < 0.00018 | 0.00031 | 0.00028 | 0.00046 | 0.00073 | ||
| 0162 | Alkalinity to pH 4.5 as CaCO3 | mg/l | 126 | 35 | 189 | 195 | 143 | 213 | 238 | 232 | ||
| 0180 | Orthophosphate, reactive as P | mg/l | 0.159 | 0.047 | 0.17 | 0.125 | 0.182 | 0.114 | 0.069 | 0.157 | ||
| 7668 | No flow /No sample | 0 | 0 | |||||||||
| 9901 | Oxygen, Dissolved, % Saturation | % | 47.9 | 78.1 | 41.2 | 58.2 | 62.2 | 69 | 93.2 | 64.6 | ||
| 9924 | Oxygen, Dissolved as O2 | mg/l | 4.8 | 7.7 | 4.41 | 7.4 | 7.39 | 8.26 | 12 | 6.79 |