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sampling point
Benny Stream At Trewerry Mill

Description BENNY STREAM AT TREWERRY MILL
Sampling point ID SW-82410610
Type Freshwater – Rivers
Status open
Location easting northing: 183723 58023
lat lon: 50.382232, -5.043511
Area Devon And Cornwall
Sub-Area West Devon And Cornwall
Summary 172 samples taken between 2023 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.

76 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
  • ColformsPre
  • Cond @ 20C
  • Cond @ 25C
  • Copper - Cu
  • Cr- Filtered
  • Cu BLM Bio
  • Cu Filtered
  • F Coli Pre
  • Fe- Filt
  • Hardness
  • Hdnss Ca
  • Hdnss Mg
  • Hexachlorbnz
  • IonicBalance
  • Iron - as Fe
  • K- Filtered
  • Lead - as Pb
  • Lithium - Li
  • Lithium Filt
  • Magnesium-Mg
  • Manganse-Mn
  • Mg Filtered
  • Mn BLM Bio
  • Mn- Filtered
  • N Inorganic
  • N Oxidised
  • NH3 un-ion
  • Na- Filtered
  • Ni BLM Bio
  • Ni- Filtered
  • Nickel - Ni
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • Oil & Grs Vs
  • Orthophospht
  • Oxygen Diss
  • Pb BLM Bio
  • Pb Filtered
  • Potassium- K
  • SO4dis
  • SiO2 Rv
  • Sld NV@500C
  • Sld Sus@105C
  • Sodium - Na
  • StrepF PMF
  • Strontium-Sr
  • StrontumFilt
  • Sulphate SO4
  • Temp Water
  • TurbidityNTU
  • Type of Flow
  • WethPresPrec
  • Zinc - as Zn
  • Zn BLM Bio
  • Zn- Filtered
  • pH

Sampling results

Displaying the twenty most recent samples. You can see all 172 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 3 Mar 2020 to 9 Mar 2023

NotationDeterminandUnits 3 Mar
2020
13:50
11 Aug
2021
15:31
29 Oct
2021
14:04
30 Nov
2021
15:40
25 Jan
2022
16:38
31 Jan
2022
15:22
10 Feb
2022
15:53
23 Mar
2022
13:47
29 Mar
2022
14:50
9 Mar
2023
16:00
0050Leadμg/l2057252829282323
0052Lead, Dissolvedμg/l1410109.78.711151212
0061pH7.57.817.227.357.567.537.537.67.787.3
0076Temperature of Water°C16.312.810.7998.91212.110
0077Conductivity at 25 Cμs/cm313224314308311307311308415
0085BOD : 5 Day ATUmg/l1.3
0106Cadmium, Dissolvedμg/l0.440.460.310.490.480.520.530.40.41
0108Cadmiumμg/l0.480.60.510.550.580.580.460.48
0111Ammoniacal Nitrogen as Nmg/l0.16
0116Nitrogen, Total Oxidised as Nmg/l4.3
0119Ammonia un-ionised as Nmg/l0.00059
0135Solids, Suspended at 105 Cmg/l22985.25.83.65.3< 33.425
0172Chloridemg/l38
0180Orthophosphate, reactive as Pmg/l0.011
0235Magnesium, Dissolvedmg/l958.48.28.58.58.28.5
0239Calcium, Dissolvedmg/l2217242424232524
0301Carbon, Organic, Dissolved as C :- {DOC}mg/l1.8152.91.51.52.11.51.8
0664Visible oil or grease, significant trace: Present/Not found (1/0)pres/nf0
3377Lead : BLM Bioavailableμg/l7.4
3408Zinc, Dissolvedμg/l10014078130140150160110120
3410Nickel, Dissolvedμg/l1169.28.69.3107.48.4
6396Turbidityntu26
6450Copper, Dissolvedμg/l27.62.11.41.431.51.4
6452Copperμg/l2.2132.92.11.93.12.11.7
6455Zincμg/l150140140150160160120130
6460Iron, Dissolvedμg/l160340160110150230140150
6462Nickelμg/l11119.19.29.5107.88.5
9901Oxygen, Dissolved, % Saturation%93.596.896.190.698.797.6101.1106.8100

Samples from 23 Nov 2018 to 10 Feb 2020

NotationDeterminandUnits23 Nov
2018
11:11
18 Jan
2019
09:14
7 Feb
2019
09:44
1 Mar
2019
10:34
16 Sep
2019
10:04
3 Oct
2019
10:36
6 Nov
2019
12:41
4 Dec
2019
11:13
20 Jan
2020
11:06
10 Feb
2020
10:06
0052Lead, Dissolvedμg/l9.0910.48.6514.24.89.210109.515
0061pH7.337.317.57.57.57.847.47.317.77.58
0106Cadmium, Dissolvedμg/l0.6060.6570.4260.5850.380.410.370.460.460.48
0235Magnesium, Dissolvedmg/l8.538.267.498.539.38.17.697.887.7
0239Calcium, Dissolvedmg/l22.222.72324.1212225262523
0301Carbon, Organic, Dissolved as C :- {DOC}mg/l2.271.732.51.461.82.92.771.81.52.7
3377Lead : BLM Bioavailableμg/l46.013.469.732.673.1745.66.35.6
3408Zinc, Dissolvedμg/l17017411015414011090110110120
3409Chromium, Dissolvedμg/l< 0.5< 0.5< 0.5< 0.5< 0.5< 0.5< 0.5< 0.5< 0.5< 0.5
3410Nickel, Dissolvedμg/l9.3613.55.889.259.67.85.366.67.1
3878Nickel : BLM Bioavailableμg/l4.466.932.995.655.724.792.42.94.73.7
4820Manganese : BLM Bioavailableμg/l50.862.645.375.93711328368576
4821Copper : BLM Bioavailableμg/l0.250.370.250.360.180.220.220.250.30.23
4822Zinc : BLM Bioavailableμg/l11212768.611810262.353778472
6450Copper, Dissolvedμg/l2.362.622.482.041.32.22.51.81.62.5
6458Manganese, Dissolvedμg/l1902441202019815092.4140150170
6460Iron, Dissolvedμg/l13914913816282160132130170240