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sampling point
Ingrebourne At A12 Bridge

Description INGREBOURNE AT A12 BRIDGE
Sampling point ID TH-PRGR0017
Type Freshwater – Rivers
Status open
Location easting northing: 556467 192158
lat lon: 51.606517, 0.258103
Area Hertfordshire And North London
Sub-Area L&W Herts & North London
Summary 218 samples taken between 2024 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.

66 determinands have been measured at this site
  • ACENAPTHEN
  • Acenapthylen
  • Action taken
  • Alky pH 4.5
  • Ammonia(N)
  • Anthracene
  • B-(a)-anthra
  • B-[a]-pyrene
  • B-[b]-fluora
  • B-[e]-pyrene
  • B-[ghi]-pery
  • B-[k]-fluora
  • BOD ATU
  • C - Org Filt
  • CHLOROPHYLL
  • COD as O2
  • Ca Filtered
  • Cadmium - Cd
  • Cd Filtered
  • Chloride Ion
  • Chromium -Cr
  • Chrysene
  • Cond @ 20C
  • Cond @ 25C
  • Copper - Cu
  • Cu BLM Bio
  • Cu Filtered
  • Dibenz[ah]an
  • DrySolids30C
  • FLUORENE
  • Fluoranthene
  • Ind123pyrene
  • Lead - as Pb
  • Mercury - Hg
  • N Oxidised
  • NATGRIDREF
  • NH3 un-ion
  • Naphthalene
  • Ni- Filtered
  • Nickel - Ni
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • Oil & Grs Vs
  • Orthophospht
  • Oxygen Diss
  • PYRENE
  • Pb Filtered
  • Perylene
  • Phenanthrene
  • SALinsitu
  • SI-GQA
  • SI-M
  • Sample Prep
  • SiO2 Rv
  • Sld Sus@105C
  • TBTCationDWT
  • Temp Water
  • TriBT Cation
  • TurbidityNTU
  • Type of Flow
  • Zinc - as Zn
  • Zn BLM Bio
  • Zn- Filtered
  • pH
  • pH in-situ

Sampling results

Displaying the twenty most recent samples. You can see all 218 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 30 Sep 2022 to 1 May 2024

NotationDeterminandUnits30 Sep
2022
09:41		24 Oct
2022
12:33		15 Nov
2022
09:54		15 Dec
2022
12:26		 3 Feb
2023
10:53		28 Feb
2023
09:39		28 Feb
2023
09:48		13 Mar
2023
13:30		 8 Apr
2024
12:03		 1 May
2024
09:16
0052Lead, Dissolvedμg/l0.180.380.140.16< 0.10.120.160.290.13
0061pH8.17.957.817.918.198.168.168.248.48.07
0076Temperature of Water°C10.813.911.23.37.34.54.510.4
0077Conductivity at 25 Cμs/cm8408399441442893963962976
0085BOD : 5 Day ATUmg/l1.7
0106Cadmium, Dissolvedμg/l< 0.010.0190.0140.0170.0150.0120.0170.0140.012
0111Ammoniacal Nitrogen as Nmg/l< 0.030.038< 0.030.160.0910.260.098
0116Nitrogen, Total Oxidised as Nmg/l3.37.93.63.43.52.93.3
0117Nitrate as Nmg/l3.297.863.583.353.453.26
0118Nitrite as Nmg/l0.00640.0450.0250.0470.0530.039
0119Ammonia un-ionised as Nmg/l< 0.000580.00082< 0.000390.001450.001360.003170.00184
0162Alkalinity to pH 4.5 as CaCO3mg/l120130170160160170
0172Chloridemg/l100
0180Orthophosphate, reactive as Pmg/l0.180.0990.0840.120.0980.120.058
0239Calcium, Dissolvedmg/l7994110120100100969593
0301Carbon, Organic, Dissolved as C :- {DOC}mg/l4.1129.77.68.49.59.210
0664Visible oil or grease, significant trace: Present/Not found (1/0)pres/nf0
0714Benzo(g,h,i)Peryleneμg/l< 0.010.013< 0.01< 0.01< 0.01< 0.010.013< 0.01< 0.01
0731Benzo(b)Fluorantheneμg/l< 0.010.017< 0.01< 0.01< 0.010.022< 0.01< 0.01
0733Benzo(k)Fluorantheneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01
0736Fluorantheneμg/l< 0.010.023< 0.01< 0.01< 0.01< 0.010.012
0746Indeno(1,2,3-cd)pyreneμg/l< 0.010.014< 0.01< 0.01< 0.01< 0.01< 0.01
0772Benzo(a)Anthraceneμg/l< 0.01< 0.01< 0.010.011< 0.01< 0.010.012< 0.01
3408Zinc, Dissolvedμg/l7.57.96.48.25.15.4544.3
3410Nickel, Dissolvedμg/l444.74.34.34.74.24.84.5
4821Copper : BLM Bioavailableμg/l0.140.160.10.10.140.20.180.1
4822Zinc : BLM Bioavailableμg/l3.21.61.62.31.31.20.980.99
6396Turbidityntu2.6
6399Benzo(a)Pyreneμg/l< 0.010.012< 0.01< 0.01< 0.01< 0.010.013< 0.01< 0.01
6450Copper, Dissolvedμg/l1.553.62.52.92.342.82.6
6753Anthraceneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01
7325Pyreneμg/l< 0.010.024< 0.01< 0.010.015< 0.010.013
7395Acenaphtheneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.03< 0.01< 0.01< 0.01
7434National Grid Reference : Whole : Field report1
7608Salinity : In Situppt0.47
7864Fluoreneμg/l< 0.01< 0.01< 0.01< 0.01< 0.010.026< 0.01< 0.01< 0.01
8310Chryseneμg/l< 0.010.014< 0.01< 0.01< 0.01< 0.01< 0.01
8311Acenaphthyleneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01
8360Dibenzo(a,h)Anthraceneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01
8940Benzo(e)Pyreneμg/l< 0.010.011< 0.01< 0.01< 0.01< 0.010.011< 0.01< 0.01
9003Peryleneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01
9669Naphthaleneμg/l< 0.01< 0.01< 0.01< 0.010.055< 0.01< 0.01< 0.01
9671Phenanthreneμg/l< 0.01< 0.01< 0.01< 0.010.016< 0.01< 0.01
9901Oxygen, Dissolved, % Saturation%9588.482.697.3102.6104.5104.485.6
9924Oxygen, Dissolved as O2mg/l10.59.119.051312.313.59.55

Samples from 7 Oct 2021 to 31 Aug 2022

NotationDeterminandUnits 7 Oct
2021
09:49		21 Dec
2021
09:49		28 Jan
2022
10:13		22 Feb
2022
12:47		14 Mar
2022
11:20		27 Apr
2022
10:06		27 May
2022
11:44		22 Jun
2022
10:28		25 Jul
2022
09:21		31 Aug
2022
11:51
0052Lead, Dissolvedμg/l0.130.110.170.160.140.210.160.160.210.27
0061pH7.977.988.137.997.978.077.867.997.828.35
0076Temperature of Water°C12.56.44.67.98.69.114.114.217.217.7
0077Conductivity at 25 Cμs/cm729955944774921100610009219091105
0106Cadmium, Dissolvedμg/l< 0.01< 0.010.0180.0170.019< 0.010.012< 0.01< 0.010.097
0111Ammoniacal Nitrogen as Nmg/l0.0430.0820.20.0520.520.0980.0770.084< 0.030.038
0116Nitrogen, Total Oxidised as Nmg/l3.81.83.33.52.53.23.53.32.2
0117Nitrate as Nmg/l3.781.773.253.482.423.173.473.282.19
0118Nitrite as Nmg/l0.0230.030.0550.0230.0850.0310.030.0240.00940.011
0119Ammonia un-ionised as Nmg/l0.000880.00110.002450.000790.0080.001670.001380.00204< 0.000620.00121
0162Alkalinity to pH 4.5 as CaCO3mg/l180240190190190170160130130130
0180Orthophosphate, reactive as Pmg/l0.120.120.160.0840.120.140.190.220.210.2
0239Calcium, Dissolvedmg/l901301109710010091898589
0301Carbon, Organic, Dissolved as C :- {DOC}mg/l109.27.1107.76.66.54.64.85.1
0714Benzo(g,h,i)Peryleneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.010.0120.02
0731Benzo(b)Fluorantheneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.010.0190.033
0733Benzo(k)Fluorantheneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.010.012
0736Fluorantheneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.010.0220.043
0746Indeno(1,2,3-cd)pyreneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.010.0120.019
0772Benzo(a)Anthraceneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.010.010.018
3408Zinc, Dissolvedμg/l3.63.36.1159.15.46.34.53.95.6
3410Nickel, Dissolvedμg/l3.53.25.13.95.45.35.34.53.94.4
4821Copper : BLM Bioavailableμg/l0.120.070.10.120.10.190.120.140.120.19
4822Zinc : BLM Bioavailableμg/l0.830.821.83.52.61.72.11.81.52.1
6399Benzo(a)Pyreneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.010.0130.024
6450Copper, Dissolvedμg/l3.8223.52.63.72.81.91.81.9
6753Anthraceneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01
7325Pyreneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.010.0240.044
7395Acenaphtheneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01
7864Fluoreneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01
8310Chryseneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.010.0130.025
8311Acenaphthyleneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01
8360Dibenzo(a,h)Anthraceneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01
8940Benzo(e)Pyreneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.010.0110.02
9003Peryleneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01
9669Naphthaleneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01
9671Phenanthreneμg/l< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.01< 0.010.015
9901Oxygen, Dissolved, % Saturation%93.484.496.398.487.291.286.291.183.783.4
9924Oxygen, Dissolved as O2mg/l9.9310.412.411.710.210.58.849.328.037.92