sampling point
Foss At Castle Mill Lock
| Description | FOSS AT CASTLE MILL LOCK |
|---|---|
| Sampling point ID | NE-49100394 |
| Type | Freshwater – Rivers |
| Status | open |
| Location |
easting northing: 460600 451300 lat lon: 53.95424, -1.078016 |
| Area | Yorkshire |
| Sub-Area | Swale, Ure, Nidd, Ouse |
| Summary | 216 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.
38 determinands have been measured at this site
- Action taken
- Alky pH 4.5
- Ammonia(N)
- BOD ATU
- CHLOROPHYLL
- Calcium - Ca
- Chloride Ion
- Cond @ 20C
- Cond @ 25C
- Cu Filtered
- Foam Visible
- Hardness
- Liqcolour-mn
- Liqcolour-se
- Liqcolour-st
- Magnesium-Mg
- N Oxidised
- NH3 un-ion
- Nitrate-N
- Nitrite-N
- O Diss %sat
- Obs Flow ROC
- Oil & Grs Vs
- Orthophospht
- Oxygen Diss
- Phenol Odour
- Potassium- K
- Sld Sus@105C
- Solid quanty
- Temp Water
- Type of Flow
- Weth7Dy-Prec
- Weth7Dy-Temp
- WethPresPrec
- WethPresTemp
- Zinc - as Zn
- pH
- pH in-situ
Sampling results
Displaying the twenty most recent samples. You can see all 216 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).
Samples from 31 Jul 2023 to 19 Jun 2024
Samples from 6 Aug 2019 to 19 Jun 2023
| Notation | Determinand | Units | 6 Aug 2019 11:42 | 27 Sep 2019 11:40 | 15 Oct 2019 15:15 | 11 Nov 2019 13:12 | 11 Dec 2019 14:41 | 8 Jan 2020 12:36 | 28 Jan 2020 09:29 | 4 Feb 2020 16:06 | 3 Mar 2020 11:34 | 19 Jun 2023 11:38 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0061 | pH | 7.42 | 7.68 | 7.84 | 7.89 | 7.63 | 8.22 | 8.02 | 7.98 | 8.43 | ||
| 0076 | Temperature of Water | °C | 19 | 15.1 | 11.9 | 7.4 | 5.7 | 7.6 | 5.8 | 4.6 | 19.1 | |
| 0077 | Conductivity at 25 C | μs/cm | 530 | 189 | 667 | 754 | 675 | 847 | 875 | 703 | 843 | |
| 0111 | Ammoniacal Nitrogen as N | mg/l | 0.12 | 0.26 | 0.078 | 0.157 | 0.18 | 0.66 | 0.13 | 0.31 | < 0.03 | |
| 0116 | Nitrogen, Total Oxidised as N | mg/l | 3.5 | 6 | 13 | 10.4 | 8.4 | 10 | 10 | 7.5 | 8.1 | |
| 0117 | Nitrate as N | mg/l | 3.39 | 5.84 | 12.9 | 10.3 | 8.34 | 9.87 | 9.93 | 7.45 | 8.02 | |
| 0118 | Nitrite as N | mg/l | 0.11 | 0.16 | 0.064 | 0.0604 | 0.064 | 0.13 | 0.066 | 0.046 | 0.084 | |
| 0119 | Ammonia un-ionised as N | mg/l | 0.00114 | 0.00334 | 0.00114 | 0.00184 | 0.00103 | 0.0101 | 0.00174 | 0.00363 | < 0.00106 | |
| 0135 | Solids, Suspended at 105 C | mg/l | < 3 | 25 | 150 | 12 | 12 | |||||
| 0162 | Alkalinity to pH 4.5 as CaCO3 | mg/l | 140 | 100 | 180 | 198 | 200 | 240 | 240 | 230 | 210 | 160 |
| 0180 | Orthophosphate, reactive as P | mg/l | 0.34 | 0.29 | 0.12 | 0.077 | 0.072 | 0.14 | 0.17 | 0.1 | < 0.01 | |
| 9901 | Oxygen, Dissolved, % Saturation | % | 40.2 | 87.1 | 82.7 | 89.7 | 88.3 | 92.1 | 88.2 | 92.1 | 99.7 | |
| 9924 | Oxygen, Dissolved as O2 | mg/l | 3.72 | 8.74 | 8.91 | 10.8 | 11.1 | 11 | 11 | 11.9 | 9.21 |