sampling point
River Torridge At Rockhay Bridge
| Description | RIVER TORRIDGE AT ROCKHAY BRIDGE |
|---|---|
| Sampling point ID | SW-72930136 |
| Type | Freshwater – Rivers |
| Status | open |
| Location |
easting northing: 250640 106990 lat lon: 50.843101, -4.122808 |
| Area | Devon And Cornwall |
| Sub-Area | East Devon And Cornwall |
| Summary | 109 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.
28 determinands have been measured at this site
- Action taken
- Alky pH 4.5
- Ammonia(N)
- BOD ATU
- Calcium - Ca
- Cond @ 25C
- Cu Filtered
- E.coli C-MF
- Hardness
- Hdnss Ca
- Hdnss Mg
- IE Conf
- IE Pres
- Magnesium-Mg
- N Inorganic
- N Oxidised
- NH3 un-ion
- Nitrate-N
- Nitrite-N
- O Diss %sat
- Orthophospht
- Oxygen Diss
- Potassium- K
- Temp Water
- Type of Flow
- WethPresPrec
- Zinc - as Zn
- pH
Sampling results
Displaying the twenty most recent samples. You can see all 109 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).
Samples from 1 Sep 2023 to 9 Jul 2024
| Notation | Determinand | Units | 1 Sep 2023 11:40 | 23 Oct 2023 11:18 | 10 Nov 2023 13:42 | 28 Nov 2023 11:50 | 13 Dec 2023 11:06 | 4 Jan 2024 13:47 | 5 Feb 2024 11:47 | 8 Mar 2024 11:50 | 5 Jun 2024 10:31 | 9 Jul 2024 10:59 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0061 | pH | 7.41 | 7.35 | 7.3 | 7.29 | 7.17 | 7.37 | 7.45 | 7.85 | 7.53 | ||
| 0076 | Temperature of Water | °C | 15.2 | 11.3 | 9.6 | 9.2 | 8.6 | 9.3 | 7.4 | 14.2 | 14.5 | |
| 0077 | Conductivity at 25 C | μs/cm | 185 | 184 | 161 | 168 | 169 | 175 | 170 | 200 | 167 | |
| 0111 | Ammoniacal Nitrogen as N | mg/l | 0.063 | < 0.03 | 0.14 | 0.1 | 0.16 | 0.034 | 0.079 | < 0.03 | 0.068 | |
| 0116 | Nitrogen, Total Oxidised as N | mg/l | 1.9 | 3 | 1.8 | 2.5 | 2.5 | 2.4 | 2.8 | 1.9 | 2.3 | |
| 0117 | Nitrate as N | mg/l | 1.89 | 2.99 | 1.79 | 2.47 | 2.48 | 2.38 | 2.77 | 1.89 | 2.28 | |
| 0118 | Nitrite as N | mg/l | 0.0087 | 0.0096 | 0.013 | 0.027 | 0.021 | 0.02 | 0.026 | 0.0064 | 0.019 | |
| 0119 | Ammonia un-ionised as N | mg/l | 0.00044 | < 0.00014 | 0.0005 | 0.00034 | 0.0004 | 0.00014 | 0.00034 | < 0.00053 | 0.00059 | |
| 0162 | Alkalinity to pH 4.5 as CaCO3 | mg/l | 41 | 36 | 33 | 36 | 30 | 34 | 34 | 46 | 30 | |
| 0180 | Orthophosphate, reactive as P | mg/l | 0.069 | 0.046 | 0.039 | 0.043 | 0.045 | 0.05 | 0.044 | 0.094 | 0.079 | |
| 2348 | Escherichia coli : Confirmed : MF | no/100ml | 3900 | |||||||||
| 3722 | Enterococci: Intestinal: Presumptive: MF | cfu/0.1l | 2100 | |||||||||
| 3723 | Enterococci: Intestinal: Confirmed: MF | cfu/0.1l | 2100 | |||||||||
| 9901 | Oxygen, Dissolved, % Saturation | % | 95.9 | 97 | 94 | 96.1 | 94 | 95.1 | 98.7 | 102 | 92.3 | |
| 9924 | Oxygen, Dissolved as O2 | mg/l | 9.6 | 10.6 | 10.7 | 11 | 11 | 10.9 | 11.8 | 10.4 | 9.38 |