We would welcome your feedback to help us make future improvements.

sampling point
Derwent At Howsham Bridge

Description DERWENT AT HOWSHAM BRIDGE
Sampling point ID NE-49600139
Type Freshwater – Rivers
Status open
Location easting northing: 473225 462512
lat lon: 54.05336, -0.882971
Area Yorkshire
Sub-Area Esk, Derwent, Hull
Summary 176 samples taken between 2021 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.

39 determinands have been measured at this site
  • Action taken
  • Alky pH 4.5
  • Ammonia(N)
  • BOD ATU
  • Calcium - Ca
  • Chloride Ion
  • Cond @ 20C
  • Cond @ 25C
  • Cu Filtered
  • Foam Visible
  • Hardness
  • Liqcolour-mn
  • Liqcolour-se
  • Liqcolour-st
  • Magnesium-Mg
  • N Oxidised
  • NH3 un-ion
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • Obs Flow ROC
  • Oil & Grs Vs
  • Orthophospht
  • Oxygen Diss
  • Phenol Odour
  • Potassium- K
  • Sample Depth
  • Sld Sus@105C
  • Solid quanty
  • Temp Water
  • Type of Flow
  • Water Depth
  • Weth7Dy-Prec
  • Weth7Dy-Temp
  • WethPresPrec
  • WethPresTemp
  • Zinc - as Zn
  • pH
  • pH in-situ

Sampling results

Displaying the twenty most recent samples. You can see all 176 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 10 Oct 2019 to 9 Aug 2021

NotationDeterminandUnits10 Oct
2019
13:32
14 Nov
2019
13:16
11 Dec
2019
11:46
13 Jan
2020
12:32
19 Feb
2020
14:38
4 Mar
2020
12:52
11 May
2021
13:00
23 Jun
2021
10:08
12 Jul
2021
13:18
9 Aug
2021
12:03
0061pH8.017.828.198.258.138.087.98.128.088
0076Temperature of Water°C10.66.46.26.55.15.911.813.717.415.8
0077Conductivity at 25 Cμs/cm444442566541234535393556512476
0111Ammoniacal Nitrogen as Nmg/l0.0380.0340.0570.0670.0720.0690.0410.0380.0310.096
0116Nitrogen, Total Oxidised as Nmg/l43.774.64.54.44.845.14.44.2
0117Nitrate as Nmg/l3.983.754.584.484.384.783.975.074.374.16
0118Nitrite as Nmg/l0.020.0220.0230.0250.0190.0160.0290.0260.0290.038
0119Ammonia un-ionised as Nmg/l0.000720.000320.000790.000950.000920.000930.000680.000910.000970.00267
0162Alkalinity to pH 4.5 as CaCO3mg/l130137170170130170110180160160
0180Orthophosphate, reactive as Pmg/l0.0380.0280.0280.0150.020.0110.020.0390.0450.067
9901Oxygen, Dissolved, % Saturation%9396.198.399.192.896.392.595.693.6104.2
9924Oxygen, Dissolved as O2mg/l10.311.812.212.211.8129.999.898.9510.3

Samples from 5 Dec 2018 to 17 Sep 2019

NotationDeterminandUnits 5 Dec
2018
11:35
14 Dec
2018
13:10
14 Jan
2019
12:45
21 Feb
2019
14:01
12 Mar
2019
13:12
8 May
2019
12:08
4 Jun
2019
11:28
18 Jul
2019
13:04
12 Aug
2019
12:31
17 Sep
2019
11:42
0061pH7.998.058.28.177.917.998.058.247.918.12
0076Temperature of Water°C5.75.17.18.15.79.415.717.815.713.4
0077Conductivity at 25 Cμs/cm462550584578499576621578473568
0085BOD : 5 Day ATUmg/l1.281.321.381.321.36
0111Ammoniacal Nitrogen as Nmg/l0.0880.0860.0620.1990.0760.0460.0640.045< 0.03< 0.03
0116Nitrogen, Total Oxidised as Nmg/l5.124.824.825.394.74.764.474.23.34.1
0117Nitrate as Nmg/l5.094.794.795.364.684.734.434.183.284.09
0118Nitrite as Nmg/l0.02850.02970.03090.02820.01780.02670.04140.0250.0240.015
0119Ammonia un-ionised as Nmg/l0.001140.001090.000910.003160.000820.000780.001770.00145< 0.00068< 0.0007
0135Solids, Suspended at 105 Cmg/l14.586.59.877.73
0162Alkalinity to pH 4.5 as CaCO3mg/l128155178168149172171170150180
0180Orthophosphate, reactive as Pmg/l0.0310.0260.0360.0530.030.0290.0550.0470.0610.051
9901Oxygen, Dissolved, % Saturation%91.1106.396.8104.192.9102.477.193.389.793.7
9924Oxygen, Dissolved as O2mg/l11.413.511.712.311.611.77.648.858.899.76