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sampling point
River Taw At Newnham Bridge

Description RIVER TAW AT NEWNHAM BRIDGE
Sampling point ID SW-73020255
Type Freshwater – Rivers
Status closed
Location easting northing: 266030 117320
lat lon: 50.939712, -3.908143
Area Devon And Cornwall
Sub-Area East Devon And Cornwall
Summary 141 samples taken between 2017 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.

45 determinands have been measured at this site
  • Action taken
  • Alky pH 4.5
  • Ammonia(N)
  • Avian Mito
  • BOD ATU
  • Bac All
  • Bac Ruminant
  • BacHF183
  • Calcium - Ca
  • Canine Mito
  • Cond @ 20C
  • Cond @ 25C
  • Cu Filtered
  • Dtrgt NncSyn
  • DtrgtAncSyn
  • F Coli Pre
  • GCMS S-Vol
  • Hardness
  • Hdnss Ca
  • Hdnss Mg
  • Human Mito
  • MST Filter
  • MST Report
  • Magnesium-Mg
  • Mineral Oils
  • N Inorganic
  • N Oxidised
  • NH3 un-ion
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • Oil & Grs Vs
  • Orthophospht
  • Oxygen Diss
  • Phenol Odour
  • PhenolicOdor
  • Potassium- K
  • Prep: DNA
  • Sld Sus@105C
  • StrepF PMF
  • Temp Water
  • Type of Flow
  • WethPresPrec
  • Zinc - as Zn
  • pH

Sampling results

Displaying the twenty most recent samples. You can see all 141 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 20 Nov 2014 to 24 Jan 2017

NotationDeterminandUnits20 Nov
2014
11:15
18 Mar
2015
11:31
16 Jun
2015
11:52
9 Sep
2015
12:39
25 Nov
2015
11:24
12 Jan
2016
09:21
21 Apr
2016
09:35
28 Jul
2016
12:18
13 Oct
2016
13:43
24 Jan
2017
12:07
0061pH7.67.77.97.87.87.568.4787.87.8
0076Temperature of Water°C10.56.416.213.19.46.91017.510.12.5
0077Conductivity at 25 Cμs/cm191213265247178180241407330223
0111Ammoniacal Nitrogen as Nmg/l< 0.03< 0.030.043< 0.03< 0.030.068< 0.03< 0.03< 0.03< 0.03
0116Nitrogen, Total Oxidised as Nmg/l3.392.821.482.222.283.071.921.281.343.28
0117Nitrate as Nmg/l3.382.811.472.212.273.061.911.271.343.27
0118Nitrite as Nmg/l0.00820.00790.01180.00560.00960.01080.01060.0064< 0.0040.0105
0119Ammonia un-ionised as Nmg/l< 0.00023< 0.000210.00098< 0.00044< 0.000330.00036< 0.00055< 0.00094< 0.00035< 0.0002
0162Alkalinity to pH 4.5 as CaCO3mg/l34446147373654776437
0180Orthophosphate, reactive as Pmg/l0.0390.0410.1080.0860.0420.0430.0220.0920.1010.039
9901Oxygen, Dissolved, % Saturation%9999951049992.386.993104101
9924Oxygen, Dissolved as O2mg/l1112.29.3110.911.311.29.798.8711.713.8

Samples from 18 Jan 2010 to 28 Aug 2014

NotationDeterminandUnits18 Jan
2010
09:30
16 Feb
2010
09:30
17 Mar
2010
13:10
4 Jan
2013
11:47
16 May
2013
08:33
16 Jul
2013
09:31
9 Oct
2013
10:14
10 Feb
2014
09:35
1 May
2014
11:08
28 Aug
2014
13:20
0061pH7.57.47.67.57.787.77.417.727.6
0076Temperature of Water°C6.34.86.997.920.213.15.912.215.8
0077Conductivity at 25 Cμs/cm187224214181167433233172194223
0111Ammoniacal Nitrogen as Nmg/l0.0390.063< 0.030.0430.118< 0.03< 0.030.031< 0.030.032
0116Nitrogen, Total Oxidised as Nmg/l4.213.292.853.13.460.822.852.691.82.83
0117Nitrate as Nmg/l4.23.272.843.093.440.8112.842.681.792.82
0118Nitrite as Nmg/l0.01350.01680.0120.01430.0240.00880.00710.00690.00870.0128
0119Ammonia un-ionised as Nmg/l0.000170.0002< 0.000180.000230.00093< 0.00115< 0.000350.00011< 0.000340.00036
0135Solids, Suspended at 105 Cmg/l19.715.7< 3
0162Alkalinity to pH 4.5 as CaCO3mg/l29394839298938264341
0180Orthophosphate, reactive as Pmg/l0.0290.0380.0410.0280.0440.0830.1220.030.0430.095
0664Visible oil or grease, significant trace: Present/Not found (1/0)pres/nf000
6450Copper, Dissolvedμg/l1.71.311.5
6455Zincμg/l7.6< 5< 5
6841Phenolic Odourpres/nf000
9901Oxygen, Dissolved, % Saturation%1119294.310292.7949597.497.6100
9924Oxygen, Dissolved as O2mg/l13.711.811.511.8118.499.9612.110.49.89