sampling point
Fiddlers Brook At Fiddlers Bridge
| Description | FIDDLERS BROOK AT FIDDLERS BRIDGE |
|---|---|
| Sampling point ID | TH-PLER0308 |
| Type | Freshwater – Unspecified |
| Status | open |
| Location |
easting northing: 544890 211950 lat lon: 51.787445, 0.099262 |
| Area | Hertfordshire And North London |
| Sub-Area | L&W Herts & North London |
| Summary | 107 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.
13 determinands have been measured at this site
- Alky pH 4.5
- Ammonia(N)
- Cond @ 25C
- N Oxidised
- NH3 un-ion
- NO FLOW/SAMP
- Nitrate-N
- Nitrite-N
- O Diss %sat
- Orthophospht
- Oxygen Diss
- Temp Water
- pH
Sampling results
Displaying the twenty most recent samples. You can see all 107 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).
Samples from 11 Jul 2022 to 3 Jul 2024
| Notation | Determinand | Units | 11 Jul 2022 10:29 | 9 Aug 2022 14:38 | 26 Sep 2022 12:58 | 11 Oct 2022 10:05 | 2 Nov 2022 12:32 | 25 Jan 2023 11:53 | 9 Feb 2023 12:39 | 7 Mar 2023 11:37 | 4 Jun 2024 12:00 | 3 Jul 2024 09:24 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0061 | pH | 7.68 | 7.66 | 7.65 | 7.43 | 8.03 | 8.01 | 7.72 | 7.5 | 7.38 | ||
| 0076 | Temperature of Water | °C | 16.7 | 12.2 | 9.8 | 11.2 | 3.3 | 4.6 | 5.2 | 15.4 | 13.5 | |
| 0077 | Conductivity at 25 C | μs/cm | 1051 | 1031 | 1002 | 868 | 847 | 803 | 798 | 683 | 876 | |
| 0111 | Ammoniacal Nitrogen as N | mg/l | 0.24 | < 0.03 | < 0.03 | < 0.03 | < 0.03 | < 0.03 | < 0.03 | 0.12 | 0.15 | |
| 0116 | Nitrogen, Total Oxidised as N | mg/l | < 0.2 | 1.6 | 0.85 | 9 | 20 | 18 | 12 | 7.1 | 7.7 | |
| 0117 | Nitrate as N | mg/l | 0.195 | 1.56 | 0.814 | 8.89 | 20 | 18 | 12 | 6.89 | 7.61 | |
| 0118 | Nitrite as N | mg/l | 0.0052 | 0.042 | 0.036 | 0.11 | 0.027 | 0.035 | 0.048 | 0.21 | 0.091 | |
| 0119 | Ammonia un-ionised as N | mg/l | 0.00347 | < 0.0003 | < 0.00024 | < 0.00016 | < 0.00033 | < 0.00037 | < 0.0002 | 0.00105 | 0.00086 | |
| 0162 | Alkalinity to pH 4.5 as CaCO3 | mg/l | 410 | 380 | 370 | 270 | 260 | 260 | 250 | 250 | 310 | |
| 0180 | Orthophosphate, reactive as P | mg/l | 0.25 | 0.11 | 0.09 | 0.041 | 0.048 | 0.028 | < 0.01 | 0.12 | 0.19 | |
| 7668 | No flow /No sample | 0 | ||||||||||
| 9901 | Oxygen, Dissolved, % Saturation | % | 31.9 | 44.7 | 34.7 | 47.1 | 95.1 | 98.6 | 92.5 | 63.7 | 56.8 | |
| 9924 | Oxygen, Dissolved as O2 | mg/l | 3.09 | 4.78 | 3.93 | 5.16 | 12.7 | 12.7 | 11.7 | 6.35 | 5.9 |