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sampling point
Pinn Above Frays

Description PINN ABOVE FRAYS
Sampling point ID TH-PCNR0075
Type Freshwater – Rivers
Status open
Location easting northing: 505767 180939
lat lon: 51.517475, -0.477067
Area Hertfordshire And North London
Sub-Area L&W Herts & North London
Summary 268 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.

28 determinands have been measured at this site
  • 4-nonPhenol
  • Action taken
  • Alky pH 4.5
  • Ammonia(N)
  • AmoniaTotYSI
  • B-[a]-pyrene
  • B-[b]-fluora
  • B-[ghi]-pery
  • B-[k]-fluora
  • BOD ATU
  • Chloride Ion
  • Cond @ 25C
  • Fluoranthene
  • Ind123pyrene
  • N Oxidised
  • NH3 un-ion
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • Orthophospht
  • Oxygen Diss
  • SI-GQA
  • Temp Water
  • Triclosan
  • Type of Flow
  • pH
  • pH in-situ
  • ptOctylPheno

Sampling results

Displaying the twenty most recent samples. You can see all 268 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 3 Aug 2023 to 2 Jul 2024

NotationDeterminandUnits 3 Aug
2023
09:29
4 Sep
2023
09:26
10 Oct
2023
09:47
22 Nov
2023
10:33
7 Dec
2023
11:33
15 Jan
2024
12:35
12 Feb
2024
12:35
6 Mar
2024
13:29
6 Jun
2024
10:08
2 Jul
2024
13:52
0061pH7.917.787.747.827.967.917.937.758.078.28
0076Temperature of Water°C16.217149.37.13.27.78.513.315.1
0077Conductivity at 25 Cμs/cm571756911673684793668694597872
0111Ammoniacal Nitrogen as Nmg/l0.0480.0470.049< 0.030.0480.0690.0460.0640.030.036
0116Nitrogen, Total Oxidised as Nmg/l2.53.54.22.52.342.83.32.63.3
0117Nitrate as Nmg/l2.473.484.182.482.283.972.783.272.593.29
0118Nitrite as Nmg/l0.0270.0180.0160.0160.0250.0260.0210.0270.0130.01
0119Ammonia un-ionised as Nmg/l0.001120.000870.00067< 0.000350.000650.000620.00060.000590.00070.00095
0162Alkalinity to pH 4.5 as CaCO3mg/l130200210180160220180190160230
0180Orthophosphate, reactive as Pmg/l0.190.280.270.140.130.150.130.0970.140.19
9901Oxygen, Dissolved, % Saturation%79.173.378.587.887.790.39292.389.288.7
9924Oxygen, Dissolved as O2mg/l7.757.078.0710.110.612.11110.89.318.9

Samples from 21 Oct 2022 to 10 Jul 2023

NotationDeterminandUnits21 Oct
2022
12:44
1 Nov
2022
13:06
22 Dec
2022
13:11
23 Jan
2023
11:56
10 Feb
2023
09:32
3 Mar
2023
13:13
25 Apr
2023
12:58
3 May
2023
10:07
7 Jun
2023
10:47
10 Jul
2023
10:48
0061pH7.567.687.868.088.118.598.157.888.097.98
0076Temperature of Water°C15.213.882.74.3710.710.91316.8
0077Conductivity at 25 Cμs/cm4284591160807729852639855914851
0111Ammoniacal Nitrogen as Nmg/l< 0.03< 0.030.0990.220.093< 0.03< 0.030.0480.0580.057
0116Nitrogen, Total Oxidised as Nmg/l3.21.93.94.73.45.22.43.84.73.8
0117Nitrate as Nmg/l3.181.883.834.673.375.182.383.774.673.78
0118Nitrite as Nmg/l0.0230.0170.0690.0290.0310.0180.0230.0270.0280.025
0119Ammonia un-ionised as Nmg/l< 0.0003< 0.000350.001130.002350.00112< 0.00044< 0.000580.000710.001320.00163
0162Alkalinity to pH 4.5 as CaCO3mg/l110110170190180230150220230210
0180Orthophosphate, reactive as Pmg/l0.150.140.150.170.160.230.120.140.260.28
9901Oxygen, Dissolved, % Saturation%81.775.386.895.193.381.771.594.985.376.8
9924Oxygen, Dissolved as O2mg/l8.187.7810.312.912.19.97.9210.58.977.43