sampling point
River Lerryn At Lerryn
| Description | LERRYN RIVER AT LERRYN |
|---|---|
| Sampling point ID | SW-81511737 |
| Type | Freshwater – Rivers |
| Status | open |
| Location |
easting northing: 214267 57302 lat lon: 50.3862, -4.614035 |
| Area | Devon And Cornwall |
| Sub-Area | West Devon And Cornwall |
| Summary | 316 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.
53 determinands have been measured at this site
- Action taken
- Alky pH 4.5
- Ammonia(N)
- BOD ATU
- Bac All
- Bac Ruminant
- BacHF183
- Bact All CN
- BactHumanCN
- BactRumnt CN
- Calcium - Ca
- Chlorophyl-A
- ColformsPre
- Cond @ 20C
- Cond @ 25C
- Cu Filtered
- E.coli C-MF
- F Coli Pre
- Hardness
- Hdnss Ca
- Hdnss Mg
- IE Pres
- MST Filter
- MST Report
- Magnesium-Mg
- N Inorganic
- N Organic
- N Oxidised
- N-Kjeldahl
- NH3 un-ion
- Nitrate-N
- Nitrite-N
- Nitrogen - N
- O Diss %sat
- Oil & Grs Vs
- Orthophospht
- OrthophsFilt
- OrthophsFilt
- Oxygen Diss
- Phenol Odour
- Phosphate
- Phosphorus-P
- Potassium- K
- Prep: DNA
- Salinity
- SiO2 Rv
- Sld Sus@105C
- StrepF PMF
- Temp Water
- Type of Flow
- WethPresPrec
- Zinc - as Zn
- pH
Sampling results
Displaying the twenty most recent samples. You can see all 316 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).
Samples from 26 Mar 2024 to 4 Jun 2024
| Notation | Determinand | Units | 26 Mar 2024 11:44 | 3 Apr 2024 10:07 | 8 Apr 2024 11:18 | 17 Apr 2024 11:22 | 17 Apr 2024 11:23 | 24 Apr 2024 12:46 | 15 May 2024 12:17 | 20 May 2024 09:49 | 29 May 2024 12:15 | 4 Jun 2024 13:05 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0061 | pH | 7.41 | 7.57 | |||||||||
| 0076 | Temperature of Water | °C | 11.1 | 10.8 | 11.3 | 10.6 | 10.6 | 10.3 | 13 | 12.2 | 13.1 | 13.6 |
| 0077 | Conductivity at 25 C | μs/cm | 196 | 194 | ||||||||
| 0085 | BOD : 5 Day ATU | mg/l | < 1 | < 1 | ||||||||
| 0111 | Ammoniacal Nitrogen as N | mg/l | < 0.03 | < 0.03 | < 0.03 | < 0.03 | < 0.03 | < 0.03 | < 0.03 | < 0.03 | < 0.03 | |
| 0113 | Nitrogen, Organic as N | mg/l | 0.17 | |||||||||
| 0114 | Nitrogen, Kjeldahl as N | mg/l | 0.2 | |||||||||
| 0116 | Nitrogen, Total Oxidised as N | mg/l | 3.6 | 3.9 | 4.1 | 4 | 4 | 3.8 | 3.9 | 3.5 | 3.7 | |
| 0117 | Nitrate as N | mg/l | 3.6 | 3.9 | 4.1 | 4 | 4 | 3.8 | 3.9 | 3.5 | 3.7 | |
| 0118 | Nitrite as N | mg/l | < 0.004 | 0.0042 | < 0.004 | < 0.004 | < 0.004 | 0.005 | < 0.004 | 0.005 | 0.0042 | |
| 0119 | Ammonia un-ionised as N | mg/l | < 0.00015 | < 0.00026 | ||||||||
| 0135 | Solids, Suspended at 105 C | mg/l | 10 | 11 | 6.7 | 3.7 | 3.5 | < 3 | < 3 | < 3 | < 3 | |
| 0162 | Alkalinity to pH 4.5 as CaCO3 | mg/l | 32 | 32 | ||||||||
| 0180 | Orthophosphate, reactive as P | mg/l | 0.019 | 0.017 | 0.016 | 0.017 | 0.013 | 0.03 | 0.014 | 0.014 | 0.013 | |
| 0192 | Phosphate :- {TIP} | mg/l | 0.03 | 0.03 | 0.026 | < 0.02 | < 0.02 | < 0.02 | < 0.02 | 0.033 | < 0.02 | |
| 0348 | Phosphorus, Total as P | mg/l | 0.047 | 0.028 | 0.026 | 0.015 | 0.025 | 0.019 | 0.021 | 0.033 | 0.022 | |
| 9686 | Nitrogen, Total as N | mg/l | 3.7 | 3.9 | 3.8 | 4.1 | 4 | 0.69 | 4 | 3.7 | 3.9 | |
| 9901 | Oxygen, Dissolved, % Saturation | % | 101.8 | 101.8 | ||||||||
| 9924 | Oxygen, Dissolved as O2 | mg/l | 11.3 | 10.7 |
Samples from 17 Jan 2024 to 22 Mar 2024
| Notation | Determinand | Units | 17 Jan 2024 11:44 | 22 Jan 2024 09:56 | 29 Jan 2024 14:16 | 7 Feb 2024 12:20 | 13 Feb 2024 10:27 | 19 Feb 2024 12:32 | 26 Feb 2024 11:55 | 1 Mar 2024 14:02 | 11 Mar 2024 12:01 | 22 Mar 2024 10:54 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0061 | pH | 7.33 | 7.27 | 7.28 | ||||||||
| 0076 | Temperature of Water | °C | 7.9 | 9.4 | 11.3 | 10.9 | 10.2 | 11.6 | 9.7 | 9.9 | 10.6 | 11 |
| 0077 | Conductivity at 25 C | μs/cm | 226 | 188 | 197 | |||||||
| 0085 | BOD : 5 Day ATU | mg/l | 1 | < 1 | ||||||||
| 0111 | Ammoniacal Nitrogen as N | mg/l | < 0.03 | < 0.03 | < 0.03 | |||||||
| 0116 | Nitrogen, Total Oxidised as N | mg/l | 4.3 | 3.8 | 4.1 | |||||||
| 0117 | Nitrate as N | mg/l | 4.29 | 3.8 | 4.1 | |||||||
| 0118 | Nitrite as N | mg/l | 0.0051 | < 0.004 | < 0.004 | |||||||
| 0119 | Ammonia un-ionised as N | mg/l | < 0.0001 | < 0.00012 | < 0.00011 | |||||||
| 0135 | Solids, Suspended at 105 C | mg/l | 4.5 | 8.5 | 7.3 | 17 | 28 | 12 | 7.6 | 17 | 7 | 6.3 |
| 0162 | Alkalinity to pH 4.5 as CaCO3 | mg/l | 34 | 31 | 32 | |||||||
| 0180 | Orthophosphate, reactive as P | mg/l | 0.018 | 0.022 | 0.015 | |||||||
| 0192 | Phosphate :- {TIP} | mg/l | 0.026 | 0.041 | 0.026 | 0.074 | 0.048 | 0.035 | 0.03 | 0.047 | < 0.02 | < 0.02 |
| 0348 | Phosphorus, Total as P | mg/l | 0.026 | 0.057 | 0.028 | 0.098 | 0.069 | 0.043 | 0.043 | 0.058 | 0.029 | 0.031 |
| 9686 | Nitrogen, Total as N | mg/l | 4.5 | 3.9 | 4.3 | 3.7 | 4.3 | 4.2 | 4.2 | 3.8 | 4.2 | 4.2 |
| 9901 | Oxygen, Dissolved, % Saturation | % | 98.8 | 98.6 | 99.1 | |||||||
| 9924 | Oxygen, Dissolved as O2 | mg/l | 11.7 | 10.7 | 10.9 |