sampling point
Childrey Brook At Mill Road Marcham
| Description | CHILDREY BROOK AT MILL ROAD MARCHAM |
|---|---|
| Sampling point ID | TH-POCR0001 |
| Type | Freshwater – Rivers |
| Status | open |
| Location |
easting northing: 445647 195318 lat lon: 51.654799, -1.341552 |
| Area | West Thames |
| Sub-Area | L&W North Wt |
| Summary | 117 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)
- Anions
- B - Filtered
- BOD ATU
- C - Organic
- CHLOR A
- Ca Filtered
- Cations
- Chloride Ion
- Cond @ 20C
- Cond @ 25C
- Fe- Filt
- Fluoride - F
- Hardness
- IonicBalance
- K- Filtered
- Mg Filtered
- Mn- Filtered
- N Oxidised
- NH3 un-ion
- Na- Filtered
- Nitrate-N
- Nitrite-N
- O Diss %sat
- Orthophospht
- Oxygen Diss
- SI-G2
- SI-GQA
- Sulphate SO4
- Temp Water
- Type of Flow
- pH
- pH in-situ
Sampling results
Displaying the twenty most recent samples. You can see all 117 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).
Samples from 6 Aug 2019 to 8 Jul 2024
Samples from 22 Aug 2016 to 1 Jul 2019
| Notation | Determinand | Units | 22 Aug 2016 12:49 | 3 Nov 2016 11:45 | 18 Nov 2016 12:23 | 5 Dec 2016 14:12 | 14 Feb 2017 13:55 | 6 Mar 2017 10:34 | 3 Apr 2019 08:17 | 10 May 2019 10:30 | 14 Jun 2019 14:13 | 1 Jul 2019 11:02 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0061 | pH | 8.12 | 8.16 | 8.01 | 8.29 | 8.17 | 8.03 | 8.14 | 7.98 | 7.92 | 8.03 | |
| 0076 | Temperature of Water | °C | 17.1 | 7.8 | 7.3 | 4.5 | 6 | 6.9 | 6.8 | 11.2 | 14.1 | 16.5 |
| 0077 | Conductivity at 25 C | μs/cm | 647 | 740 | 700 | 598 | 724 | 667 | 694 | 596 | 761 | 685 |
| 0111 | Ammoniacal Nitrogen as N | mg/l | 0.041 | 0.098 | 0.205 | 0.091 | 0.08 | 0.318 | 0.533 | 0.403 | 0.038 | |
| 0116 | Nitrogen, Total Oxidised as N | mg/l | 8.74 | 12.6 | 11.5 | 9.93 | 7.9 | 10.3 | 8.03 | 6.98 | 9.9 | |
| 0117 | Nitrate as N | mg/l | 8.66 | 12.5 | 11.3 | 9.87 | 7.84 | 10.2 | 7.83 | 6.82 | 9.81 | |
| 0118 | Nitrite as N | mg/l | 0.0791 | 0.113 | 0.233 | 0.0603 | 0.0605 | 0.131 | 0.199 | 0.16 | 0.093 | |
| 0119 | Ammonia un-ionised as N | mg/l | 0.00125 | 0.00152 | 0.00307 | 0.00124 | 0.00116 | 0.00459 | 0.0101 | 0.00828 | 0.00111 | |
| 0162 | Alkalinity to pH 4.5 as CaCO3 | mg/l | 203 | 223 | 198 | 254 | 221 | 209 | 187 | 224 | 200 | |
| 0180 | Orthophosphate, reactive as P | mg/l | 0.196 | 0.286 | 0.281 | 0.158 | 0.191 | 0.192 | 0.22 | 0.735 | 0.34 | |
| 9901 | Oxygen, Dissolved, % Saturation | % | 88.2 | 86.2 | 74.2 | 100.7 | 88.7 | 89.2 | 74.5 | 102.8 | 94.8 | 80.5 |
| 9924 | Oxygen, Dissolved as O2 | mg/l | 8.48 | 10.2 | 8.93 | 13 | 11 | 10.8 | 9.08 | 11.3 | 9.72 | 7.84 |