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sampling point
River Ruthern At Grogley Downs Bridge

Description RIVER RUTHERN AT GROGLEY DOWNS BRIDGE
Sampling point ID SW-82520705
Type Freshwater – Rivers
Status open
Location easting northing: 201587 67840
lat lon: 50.476713, -4.797763
Area Devon And Cornwall
Sub-Area West Devon And Cornwall
Summary 198 samples taken between 2020 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.

73 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
  • CHLOR A
  • Ca Filtered
  • Cadmium - Cd
  • Calcium - Ca
  • Cd Filtered
  • Chloride Ion
  • Chlorophyl-A
  • Chromium -Cr
  • ColformsPre
  • Cond @ 20C
  • Cond @ 25C
  • Copper - Cu
  • Cr- Filtered
  • Cu Filtered
  • F Coli Pre
  • 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
  • NH3 un-ion
  • Na- Filtered
  • Ni- Filtered
  • Nickel - Ni
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • Oil & Grs Vs
  • Orthophospht
  • Oxygen Diss
  • Pb Filtered
  • Phenol Odour
  • Potassium- K
  • SO4dis
  • SiO2 Rv
  • Sld Sus@105C
  • Sodium - Na
  • StrepF PMF
  • Strontium-Sr
  • StrontumFilt
  • Sulphate SO4
  • Temp Water
  • Type of Flow
  • WethPresPrec
  • WethPresTemp
  • Zinc - as Zn
  • Zn- Filtered
  • pH
  • pH in-situ

Sampling results

Displaying the twenty most recent samples. You can see all 198 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 3 Oct 2019 to 4 Mar 2020

NotationDeterminandUnits 3 Oct
2019
11:12
1 Nov
2019
10:43
3 Dec
2019
14:12
3 Dec
2019
14:13
8 Jan
2020
09:37
8 Jan
2020
09:38
5 Feb
2020
14:57
5 Feb
2020
14:58
3 Mar
2020
13:46
4 Mar
2020
13:13
0061pH7.387.277.497.497.327.327.757.757.467.5
0076Temperature of Water°C11.412.48.88.810.910.98.68.69.59.8
0077Conductivity at 25 Cμs/cm187186201201202202195195198210
0111Ammoniacal Nitrogen as Nmg/l0.0220.040.023< 0.03< 0.030.0190.012< 0.03< 0.030.53
0116Nitrogen, Total Oxidised as Nmg/l2.73.24.44.44.24444.23.8
0117Nitrate as Nmg/l2.73.194.394.44.193.99444.193.78
0118Nitrite as Nmg/l0.00380.00630.00570.0050.0120.0120.00470.00460.00650.019
0119Ammonia un-ionised as Nmg/l0.000110.000160.00012< 0.00016< 0.000128.0e-050.00011< 0.00028< 0.000150.00305
0162Alkalinity to pH 4.5 as CaCO3mg/l31333233343432333236
0180Orthophosphate, reactive as Pmg/l0.0160.0180.0150.0160.0180.0180.0160.0140.0180.034
9901Oxygen, Dissolved, % Saturation%9910099.299.298.498.499.299.297.294
9924Oxygen, Dissolved as O2mg/l10.810.711.511.510.910.911.611.611.110.6

Samples from 30 May 2019 to 3 Oct 2019

NotationDeterminandUnits30 May
2019
09:56
13 Jun
2019
09:58
24 Jun
2019
09:00
4 Jul
2019
10:27
16 Jul
2019
10:42
1 Aug
2019
15:38
1 Aug
2019
15:39
4 Sep
2019
11:34
4 Sep
2019
11:36
3 Oct
2019
11:11
0061pH7.47.57.647.457.547.827.817.57.497.38
0076Temperature of Water°C13.311.613.413.114.715.615.614.914.911.4
0077Conductivity at 25 Cμs/cm203196201203201201193193187
0111Ammoniacal Nitrogen as Nmg/l0.0190.0120.0076< 0.030.026< 0.030.0052< 0.03< 0.03
0116Nitrogen, Total Oxidised as Nmg/l2.82.9332.32.42.12.22.8
0117Nitrate as Nmg/l2.82.9332.32.42.12.22.8
0118Nitrite as Nmg/l0.0050.00470.0035< 0.0040.0045< 0.0040.0033< 0.004< 0.004
0119Ammonia un-ionised as Nmg/l0.000120.000125.0e-05< 0.000270.00048< 0.000544.0e-05< 0.00025< 0.00015
0162Alkalinity to pH 4.5 as CaCO3mg/l383639383839383730
0180Orthophosphate, reactive as Pmg/l0.0210.0220.0210.0210.0290.0290.0280.030.016
9901Oxygen, Dissolved, % Saturation%9695.697.888.6100.2100.292.691.899
9924Oxygen, Dissolved as O2mg/l1010.410.38.979.959.959.339.2510.8