sampling point
Derril Water North Of Derril
Description | DERRIL WATER NORTH OF DERRIL |
---|---|
Sampling point ID | SW-91211370 |
Type | Freshwater – Rivers |
Status | open |
Location |
easting northing: 230756 104072 lat lon: 50.811407, -4.403634 |
Area | Devon And Cornwall |
Sub-Area | Central Devon And Cornwall |
Summary | 16 samples taken between 2024 and 2020 |
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)
- BOD ATU
- Cond @ 25C
- N Oxidised
- NH3 un-ion
- Nitrate-N
- Nitrite-N
- O Diss %sat
- Orthophospht
- Oxygen Diss
- Temp Water
- pH
Sampling results
Samples from 15 Apr 2021 to 30 Jul 2024
Samples from 28 Oct 2020 to 5 Mar 2021
Notation | Determinand | Units | 28 Oct 2020 12:40 | 11 Nov 2020 08:24 | 15 Dec 2020 11:05 | 5 Jan 2021 11:15 | 3 Feb 2021 11:58 | 5 Mar 2021 12:43 |
---|---|---|---|---|---|---|---|---|
0061 | pH | 7.14 | 7.33 | 7.38 | 7.62 | 7.63 | 7.66 | |
0076 | Temperature of Water | °C | 10.9 | 11.4 | 7.9 | 5.2 | 8.4 | 6.4 |
0077 | Conductivity at 25 C | μs/cm | 131 | 147 | 141 | 149 | 125 | 147 |
0111 | Ammoniacal Nitrogen as N | mg/l | < 0.03 | < 0.03 | < 0.03 | < 0.03 | < 0.03 | < 0.03 |
0116 | Nitrogen, Total Oxidised as N | mg/l | 0.35 | 0.4 | 0.56 | 0.45 | 0.4 | 0.33 |
0117 | Nitrate as N | mg/l | 0.346 | 0.396 | 0.556 | 0.446 | 0.396 | 0.326 |
0118 | Nitrite as N | mg/l | < 0.004 | < 0.004 | < 0.004 | < 0.004 | < 0.004 | < 0.004 |
0119 | Ammonia un-ionised as N | mg/l | < 8.0e-05 | < 0.00013 | < 0.00011 | < 0.00016 | < 0.00021 | < 0.00019 |
0162 | Alkalinity to pH 4.5 as CaCO3 | mg/l | 28 | 31 | 29 | 30 | 28 | 30 |
0180 | Orthophosphate, reactive as P | mg/l | 0.017 | 0.012 | < 0.01 | < 0.01 | 0.012 | < 0.01 |
9901 | Oxygen, Dissolved, % Saturation | % | 94.6 | 93.5 | 96.7 | 97.2 | 98.1 | 97.5 |
9924 | Oxygen, Dissolved as O2 | mg/l | 10.4 | 10.2 | 11.5 | 12.3 | 11.5 | 12 |