sampling point
West Okement D/S Meldon Dam
| Description | WEST OKEMENT RIVER BELOW MELDON DAM |
|---|---|
| Sampling point ID | SW-72940381 |
| Type | Freshwater – Rivers |
| Status | open |
| Location |
easting northing: 256358 91671 lat lon: 50.70688, -4.03566 |
| Area | Devon And Cornwall |
| Sub-Area | East Devon And Cornwall |
| Summary | 92 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.
64 determinands have been measured at this site
- Action taken
- Al- Filtered
- Alky pH 4.5
- Aluminium-Al
- Ammonia(N)
- Arsenic - As
- As-Filtered
- B - Filtered
- BOD ATU
- Ba- Filtered
- Barium - Ba
- Boron - as B
- C - Org Filt
- Ca Filtered
- Cadmium - Cd
- Calcium - Ca
- Cd Filtered
- Chloride Ion
- Chromium -Cr
- Cond @ 25C
- Copper - Cu
- Cr- Filtered
- Cu Filtered
- Fe- Filt
- Hardness
- Hdnss Ca
- Hdnss Mg
- IonicBalance
- Iron - as Fe
- K- Filtered
- Lead - as Pb
- Lithium - Li
- Lithium Filt
- Magnesium-Mg
- Manganse-Mn
- Mg Filtered
- Mn- Filtered
- N Inorganic
- N Oxidised
- NATGRIDREF
- NH3 un-ion
- Na- Filtered
- Ni- Filtered
- Nickel - Ni
- Nitrate-N
- Nitrite-N
- O Diss %sat
- Orthophospht
- Oxygen Diss
- Pb Filtered
- Potassium- K
- SO4dis
- SiO2 Rv
- Sld Sus@105C
- Sodium - Na
- Strontium-Sr
- StrontumFilt
- Sulphate SO4
- Temp Water
- Type of Flow
- WethPresPrec
- Zinc - as Zn
- Zn- Filtered
- pH
Sampling results
Displaying the twenty most recent samples. You can see all 92 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).
Samples from 2 Dec 2019 to 17 Jul 2024
Samples from 5 Oct 2006 to 6 Nov 2019
| Notation | Determinand | Units | 5 Oct 2006 13:40 | 7 Dec 2006 10:25 | 10 Sep 2013 13:51 | 13 May 2019 12:50 | 18 Jun 2019 11:20 | 5 Jul 2019 11:18 | 6 Aug 2019 12:56 | 10 Sep 2019 12:16 | 14 Oct 2019 11:17 | 6 Nov 2019 09:26 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0050 | Lead | μg/l | < 2 | |||||||||
| 0052 | Lead, Dissolved | μg/l | < 2 | |||||||||
| 0061 | pH | 6.8 | 6.63 | 6.5 | 6.4 | 6.07 | 6.3 | 6.2 | 6.8 | 5.94 | ||
| 0076 | Temperature of Water | °C | 13.9 | 12.7 | 10.9 | 11.1 | 10.9 | 14.3 | 14.2 | 12 | 9.3 | |
| 0077 | Conductivity at 25 C | μs/cm | 39.7 | 44 | 24 | 42 | 24 | 38 | 36 | 34 | ||
| 0085 | BOD : 5 Day ATU | mg/l | < 1 | < 1 | ||||||||
| 0106 | Cadmium, Dissolved | μg/l | < 0.1 | |||||||||
| 0108 | Cadmium | μg/l | < 0.1 | |||||||||
| 0111 | Ammoniacal Nitrogen as N | mg/l | 0.059 | < 0.03 | 0.102 | < 0.03 | 0.037 | 0.055 | 0.079 | 0.033 | < 0.03 | < 0.03 |
| 0116 | Nitrogen, Total Oxidised as N | mg/l | < 0.2 | < 0.2 | < 0.2 | < 0.2 | < 0.2 | < 0.2 | < 0.2 | < 0.2 | < 0.2 | < 0.2 |
| 0117 | Nitrate as N | mg/l | < 0.196 | < 0.196 | < 0.196 | < 0.196 | < 0.196 | < 0.196 | < 0.196 | < 0.196 | < 0.196 | |
| 0118 | Nitrite as N | mg/l | < 0.004 | < 0.004 | < 0.004 | < 0.004 | < 0.004 | < 0.004 | < 0.004 | < 0.004 | < 0.004 | < 0.004 |
| 0119 | Ammonia un-ionised as N | mg/l | 9.0e-05 | < 2.0e-05 | 2.0e-05 | 1.0e-05 | 4.0e-05 | 1.0e-05 | < 4.0e-05 | < 1.0e-05 | ||
| 0135 | Solids, Suspended at 105 C | mg/l | 17.5 | |||||||||
| 0158 | Hardness, Total as CaCO3 | mg/l | 5.38 | |||||||||
| 0162 | Alkalinity to pH 4.5 as CaCO3 | mg/l | < 5 | < 5 | < 5 | < 5 | < 5 | 5 | < 5 | < 5 | ||
| 0172 | Chloride | mg/l | 6.8 | |||||||||
| 0180 | Orthophosphate, reactive as P | mg/l | < 0.02 | < 0.02 | < 0.01 | < 0.01 | < 0.01 | < 0.01 | < 0.01 | < 0.01 | < 0.01 | |
| 0182 | Silica, reactive as SiO2 | mg/l | 3.08 | |||||||||
| 0183 | Sulphate as SO4 | mg/l | < 10 | |||||||||
| 0205 | Sodium, Dissolved | mg/l | 4.4 | |||||||||
| 0207 | Sodium | mg/l | 4.63 | |||||||||
| 0209 | Potassium, Dissolved | mg/l | 0.93 | |||||||||
| 0211 | Potassium | mg/l | 1.02 | |||||||||
| 0235 | Magnesium, Dissolved | mg/l | 0.683 | |||||||||
| 0237 | Magnesium | mg/l | 0.752 | |||||||||
| 0239 | Calcium, Dissolved | mg/l | 1.03 | |||||||||
| 0241 | Calcium | mg/l | 1.05 | |||||||||
| 0301 | Carbon, Organic, Dissolved as C :- {DOC} | mg/l | 2.97 | |||||||||
| 1183 | Weather : Precipitation | 5 | ||||||||||
| 3164 | Chromium | μg/l | < 0.5 | |||||||||
| 3267 | Type of flow as description | 3 | ||||||||||
| 3408 | Zinc, Dissolved | μg/l | 10.2 | |||||||||
| 3409 | Chromium, Dissolved | μg/l | < 0.5 | |||||||||
| 3410 | Nickel, Dissolved | μg/l | < 1 | |||||||||
| 4201 | Lithium, Dissolved | μg/l | < 100 | |||||||||
| 6037 | Aluminium, Dissolved | μg/l | 69.1 | |||||||||
| 6045 | Arsenic, Dissolved | μg/l | 5.09 | |||||||||
| 6046 | Arsenic | μg/l | 16.5 | |||||||||
| 6050 | Manganese | μg/l | 293 | |||||||||
| 6051 | Iron | μg/l | 1640 | |||||||||
| 6057 | Aluminium | μg/l | 171 | |||||||||
| 6059 | Boron | μg/l | < 100 | |||||||||
| 6062 | Barium | μg/l | < 10 | |||||||||
| 6063 | Strontium | μg/l | < 20 | |||||||||
| 6064 | Lithium | μg/l | < 100 | |||||||||
| 6450 | Copper, Dissolved | μg/l | 1.4 | 1.1 | 1.24 | |||||||
| 6452 | Copper | μg/l | 1.44 | |||||||||
| 6455 | Zinc | μg/l | < 5 | 7.9 | 9.88 | |||||||
| 6458 | Manganese, Dissolved | μg/l | 190 | |||||||||
| 6460 | Iron, Dissolved | μg/l | 352 | |||||||||
| 6462 | Nickel | μg/l | < 1 | |||||||||
| 6693 | Strontium, Filtered | μg/l | < 20 | |||||||||
| 7044 | Ionic Balance | % | -20.1 | |||||||||
| 7434 | National Grid Reference : Whole : Field report | 1 | ||||||||||
| 7859 | Sulphate, Dissolved as SO4 | mg/l | < 10 | |||||||||
| 9446 | Barium, Dissolved | μg/l | < 10 | |||||||||
| 9447 | Boron, Dissolved | μg/l | < 100 | |||||||||
| 9901 | Oxygen, Dissolved, % Saturation | % | 92 | 75 | 105 | 95 | 82.8 | 89 | 97 | 94 | 96.6 | |
| 9924 | Oxygen, Dissolved as O2 | mg/l | 9.48 | 11.6 | 10.4 | 9.13 | 9.09 | 9.93 | 10.1 | 11.1 |