sampling point
River Carey At Halwill Bridge Quoditch
Description | RIVER CAREY AT HALWILL BRIDGE - QUODITCH |
---|---|
Sampling point ID | SW-81281177 |
Type | Freshwater – Rivers |
Status | open |
Location |
easting northing: 242031 98482 lat lon: 50.764364, -4.241326 |
Area | Devon And Cornwall |
Sub-Area | Central Devon And Cornwall |
Summary | 17 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 5 May 2021 to 17 Jul 2024
Samples from 28 Oct 2020 to 12 Apr 2021
Notation | Determinand | Units | 28 Oct 2020 13:27 | 11 Nov 2020 07:52 | 11 Dec 2020 11:03 | 13 Jan 2021 10:02 | 2 Feb 2021 08:29 | 5 Mar 2021 11:40 | 12 Apr 2021 12:32 |
---|---|---|---|---|---|---|---|---|---|
0061 | pH | 7.3 | 7.16 | 7.24 | 7.89 | 7.13 | 7.55 | 7.59 | |
0076 | Temperature of Water | °C | 9.6 | 10.7 | 8 | 7.6 | 8 | 5.7 | 7.2 |
0077 | Conductivity at 25 C | μs/cm | 151 | 164 | 152 | 132 | 116 | 164 | 187 |
0111 | Ammoniacal Nitrogen as N | mg/l | 0.073 | 0.03 | 0.068 | 0.089 | 0.086 | 0.042 | 0.031 |
0116 | Nitrogen, Total Oxidised as N | mg/l | 0.57 | 0.93 | 0.61 | 0.49 | 0.62 | 1.2 | 1.1 |
0117 | Nitrate as N | mg/l | 0.563 | 0.924 | 0.605 | 0.486 | 0.616 | 1.19 | 1.09 |
0118 | Nitrite as N | mg/l | 0.007 | 0.0065 | 0.0049 | < 0.004 | 0.0041 | 0.0081 | 0.012 |
0119 | Ammonia un-ionised as N | mg/l | 0.00026 | 8.0e-05 | 0.00019 | 0.00106 | 0.00019 | 0.0002 | 0.00018 |
0162 | Alkalinity to pH 4.5 as CaCO3 | mg/l | 35 | 28 | 28 | 26 | 24 | 34 | 47 |
0180 | Orthophosphate, reactive as P | mg/l | 0.037 | 0.027 | 0.015 | 0.016 | 0.017 | 0.015 | 0.017 |
9901 | Oxygen, Dissolved, % Saturation | % | 98.8 | 94.5 | 95.4 | 97 | 95.6 | 99.2 | 103.2 |
9924 | Oxygen, Dissolved as O2 | mg/l | 11.2 | 10.5 | 11.3 | 11.6 | 11.3 | 12.4 | 12.4 |