sampling point
Porthleven Stream D/S Wheal Fortune
| Description | PORTHLEVEN STREAM DOWNSTREAM WHEAL FORTUNE |
|---|---|
| Sampling point ID | SW-82110170 |
| Type | Freshwater – Rivers |
| Status | open |
| Location |
easting northing: 162735 28466 lat lon: 50.108771, -5.319716 |
| Area | Devon And Cornwall |
| Sub-Area | West Devon And Cornwall |
| Summary | 32 samples taken between 2024 and 2017 |
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.
54 determinands have been measured at this site
- Al- Filtered
- Alky pH 4.5
- Aluminium-Al
- Ammonia(N)
- B - Filtered
- 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
- Fluoride - F
- Hardness
- IonicBalance
- Iron - as Fe
- K- Filtered
- Lead - as Pb
- Lithium - Li
- Lithium Filt
- Magnesium-Mg
- Manganse-Mn
- Mg Filtered
- Mn- Filtered
- N Oxidised
- NATGRIDREF
- Na- Filtered
- Ni- Filtered
- Nickel - Ni
- Nitrite-N
- O Diss %sat
- Orthophospht
- Pb Filtered
- Potassium- K
- SO4dis
- SiO2 Rv
- Sld Sus@105C
- Sodium - Na
- Strontium-Sr
- StrontumFilt
- Sulphate SO4
- Temp Water
- Zinc - as Zn
- Zn- Filtered
- pH
- pH in-situ
Sampling results
Displaying the twenty most recent samples. You can see all 32 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).
Samples from 20 Apr 2022 to 2 Apr 2024
| Notation | Determinand | Units | 20 Apr 2022 12:26 | 16 May 2022 12:30 | 21 Jun 2022 12:19 | 20 Dec 2023 13:40 | 10 Jan 2024 12:20 | 25 Jan 2024 12:37 | 8 Feb 2024 11:27 | 15 Feb 2024 12:34 | 13 Mar 2024 12:24 | 2 Apr 2024 12:28 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0050 | Lead | μg/l | < 2 | < 2 | 6.8 | |||||||
| 0052 | Lead, Dissolved | μg/l | < 2 | < 2 | 2.1 | 0.82 | 0.81 | 1.3 | 1.1 | 0.76 | 0.94 | 0.88 |
| 0061 | pH | 6.35 | 6.34 | 6.13 | 6.42 | 6.29 | 6.28 | 6.32 | 6.56 | 6.48 | 6.56 | |
| 0076 | Temperature of Water | °C | 12.3 | 13.5 | 14.1 | |||||||
| 0077 | Conductivity at 25 C | μs/cm | 274 | 271 | 278 | |||||||
| 0106 | Cadmium, Dissolved | μg/l | 2.6 | 2.6 | 2.7 | 1.8 | 1.8 | 2.1 | 2 | 1.8 | 1.8 | 1.8 |
| 0108 | Cadmium | μg/l | 2.6 | 2.7 | 2.8 | |||||||
| 0135 | Solids, Suspended at 105 C | mg/l | < 3 | < 3 | 7.9 | |||||||
| 0235 | Magnesium, Dissolved | mg/l | 7.2 | 7.4 | 7.6 | 6.2 | 6.4 | 6.6 | 6.5 | 6.4 | 6.3 | 6.1 |
| 0239 | Calcium, Dissolved | mg/l | 13 | 13 | 12 | 13 | 14 | 13 | 13 | 14 | 14 | 14 |
| 0301 | Carbon, Organic, Dissolved as C :- {DOC} | mg/l | 0.66 | 1 | 0.64 | 1 | 0.96 | 0.72 | 1.1 | 1.1 | 1.1 | 0.99 |
| 3408 | Zinc, Dissolved | μg/l | 890 | 900 | 960 | 640 | 630 | 720 | 690 | 630 | 640 | 600 |
| 3409 | Chromium, Dissolved | μg/l | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | |||
| 3410 | Nickel, Dissolved | μg/l | 47 | 50 | 56 | 32 | 31 | 37 | 36 | 31 | 31 | 30 |
| 6037 | Aluminium, Dissolved | μg/l | 47 | 48 | 53 | 52 | 40 | 58 | 50 | |||
| 6450 | Copper, Dissolved | μg/l | 84 | 87 | 98 | 61 | 62 | 73 | 69 | 55 | 73 | 68 |
| 6452 | Copper | μg/l | 85 | 87 | 120 | |||||||
| 6455 | Zinc | μg/l | 890 | 920 | 970 | |||||||
| 6460 | Iron, Dissolved | μg/l | < 30 | < 30 | < 30 | |||||||
| 6462 | Nickel | μg/l | 47 | 49 | 56 | |||||||
| 7434 | National Grid Reference : Whole : Field report | 1 | ||||||||||
| 9901 | Oxygen, Dissolved, % Saturation | % | 96.8 | 92 | 94.2 |
Samples from 24 May 2018 to 7 Mar 2022
| Notation | Determinand | Units | 24 May 2018 12:10 | 9 Jul 2021 12:23 | 13 Aug 2021 11:15 | 3 Sep 2021 11:52 | 26 Oct 2021 12:22 | 8 Nov 2021 13:12 | 14 Dec 2021 12:18 | 19 Jan 2022 11:45 | 14 Feb 2022 11:54 | 7 Mar 2022 12:59 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0050 | Lead | μg/l | 2.02 | 2.3 | 2.3 | 2.8 | < 2 | < 2 | < 2 | < 2 | < 2 | < 2 |
| 0052 | Lead, Dissolved | μg/l | 1.6 | < 2 | < 2 | 2.1 | < 2 | < 2 | < 2 | < 2 | < 2 | < 2 |
| 0061 | pH | 6.75 | 6.43 | 6.8 | 6.43 | 6.42 | 6.56 | 6.6 | 6.55 | 6.9 | 6.56 | |
| 0076 | Temperature of Water | °C | 13.5 | 14.1 | 14.8 | 13.9 | 13.1 | 13 | 12.3 | 11.5 | 10.5 | 10.7 |
| 0077 | Conductivity at 25 C | μs/cm | 288 | 278 | 232 | 292 | 273 | 265 | 265 | 264 | 266 | 270 |
| 0106 | Cadmium, Dissolved | μg/l | 2.63 | 2.9 | 2.9 | 3.1 | 2.1 | 1.8 | 1.9 | 2 | 2.2 | 1.8 |
| 0108 | Cadmium | μg/l | 2.57 | 2.9 | 2.8 | 3.1 | 2.1 | 1.8 | 1.8 | 2 | 2.2 | 1.8 |
| 0111 | Ammoniacal Nitrogen as N | mg/l | < 0.03 | |||||||||
| 0116 | Nitrogen, Total Oxidised as N | mg/l | 5.41 | |||||||||
| 0118 | Nitrite as N | mg/l | < 0.004 | |||||||||
| 0135 | Solids, Suspended at 105 C | mg/l | < 3 | < 3 | < 3 | < 3 | < 3 | 3.7 | < 3 | < 3 | < 3 | |
| 0158 | Hardness, Total as CaCO3 | mg/l | 64 | |||||||||
| 0162 | Alkalinity to pH 4.5 as CaCO3 | mg/l | 11 | |||||||||
| 0172 | Chloride | mg/l | 41.5 | |||||||||
| 0177 | Fluoride | mg/l | 0.099 | |||||||||
| 0180 | Orthophosphate, reactive as P | mg/l | < 0.01 | |||||||||
| 0182 | Silica, reactive as SiO2 | mg/l | 7.38 | |||||||||
| 0183 | Sulphate as SO4 | mg/l | 32.7 | |||||||||
| 0205 | Sodium, Dissolved | mg/l | 21.9 | |||||||||
| 0207 | Sodium | mg/l | 21.7 | |||||||||
| 0209 | Potassium, Dissolved | mg/l | 3.58 | |||||||||
| 0211 | Potassium | mg/l | 3.68 | |||||||||
| 0235 | Magnesium, Dissolved | mg/l | 7.36 | 7.4 | 7.6 | 7.5 | 6.8 | 6.5 | 6.6 | 6.7 | 6.9 | 6.5 |
| 0237 | Magnesium | mg/l | 7.39 | |||||||||
| 0239 | Calcium, Dissolved | mg/l | 13.5 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 |
| 0241 | Calcium | mg/l | 13.4 | |||||||||
| 0301 | Carbon, Organic, Dissolved as C :- {DOC} | mg/l | 0.88 | 0.6 | 0.66 | 0.61 | 1.1 | 1.1 | 1.2 | 0.88 | 1.2 | 1.1 |
| 3164 | Chromium | μg/l | < 0.5 | |||||||||
| 3169 | pH : In Situ | 6.4 | ||||||||||
| 3408 | Zinc, Dissolved | μg/l | 868 | 900 | 970 | > 500 | 720 | 630 | 640 | 710 | 770 | 630 |
| 3409 | Chromium, Dissolved | μg/l | < 0.5 | |||||||||
| 3410 | Nickel, Dissolved | μg/l | 46.4 | 51 | 53 | 58 | 41 | 30 | 32 | 33 | 39 | 29 |
| 4201 | Lithium, Dissolved | μg/l | < 100 | |||||||||
| 6037 | Aluminium, Dissolved | μg/l | 59.8 | |||||||||
| 6050 | Manganese | μg/l | 84.7 | |||||||||
| 6051 | Iron | μg/l | 64.2 | |||||||||
| 6057 | Aluminium | μg/l | 81.1 | |||||||||
| 6059 | Boron | μg/l | < 100 | |||||||||
| 6062 | Barium | μg/l | 13.6 | |||||||||
| 6063 | Strontium | μg/l | 78.5 | |||||||||
| 6064 | Lithium | μg/l | < 100 | |||||||||
| 6450 | Copper, Dissolved | μg/l | 84.3 | 96 | 96 | 100 | 61 | 37 | 45 | 58 | 71 | 50 |
| 6452 | Copper | μg/l | 83.4 | 100 | 99 | 110 | 62 | 42 | 50 | 64 | 72 | 55 |
| 6455 | Zinc | μg/l | 853 | 910 | 890 | 940 | 750 | 650 | 650 | 700 | 760 | 630 |
| 6458 | Manganese, Dissolved | μg/l | 84.2 | |||||||||
| 6460 | Iron, Dissolved | μg/l | < 30 | < 30 | < 30 | < 30 | < 30 | < 30 | < 30 | < 30 | < 30 | < 30 |
| 6462 | Nickel | μg/l | 44.7 | 52 | 53 | 59 | 40 | 29 | 32 | 34 | 40 | 29 |
| 6693 | Strontium, Filtered | μg/l | 78.1 | |||||||||
| 7044 | Ionic Balance | % | -2.97 | |||||||||
| 7859 | Sulphate, Dissolved as SO4 | mg/l | 32.7 | |||||||||
| 9446 | Barium, Dissolved | μg/l | 13.5 | |||||||||
| 9447 | Boron, Dissolved | μg/l | < 100 | |||||||||
| 9901 | Oxygen, Dissolved, % Saturation | % | 93 | 93.2 | 91.6 | 93.9 | 95.2 | 94.5 | 94 | 96.5 | 99 |