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sampling point
River Irt At Holmrook

Description RIVER IRT AT HOLMROOK
Sampling point ID NW-88005090
Type Freshwater – Rivers
Status open
Location easting northing: 308010 499523
lat lon: 54.382845, -3.417897
Area Cumbria And Lancashire
Sub-Area Morecombe Bay
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.

45 determinands have been measured at this site
  • ALK.0.45um
  • Alky pH 4.5
  • Ammonia(N)
  • BOD ATU
  • CHLORIDE GFC
  • Calcium - Ca
  • Chloride Ion
  • ColfmF Conf
  • Cond @ 20C
  • Cond @ 25C
  • Cu Filtered
  • E.coli C-MF
  • F Coli Pre
  • Hardness
  • IE Conf
  • Magnesium-Mg
  • N Oxid Filt
  • N Oxidised
  • NH3 filt N
  • NH3 un-ion
  • Nitrate-N
  • Nitrite Filt
  • Nitrite-N
  • O Diss %sat
  • OMR Smpl Num
  • Oil & Grs Vs
  • Orthophospht
  • OrthophsFilt
  • Oxygen Diss
  • Phenol Odour
  • PhenolicOdor
  • Phosphorus-P
  • SiO2 Filt
  • SiO2 Rv
  • Sld NV@500C
  • Sld Sus@105C
  • Temp Water
  • Weth-Visibty
  • Weth7Dy-Prec
  • Weth7Dy-Temp
  • Weth7Dy-Vsy
  • WethPresPrec
  • WethPresTemp
  • Zinc - as Zn
  • pH

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 21 Nov 2023 to 15 Jul 2024

NotationDeterminandUnits21 Nov
2023
12:43
13 Dec
2023
11:32
29 Jan
2024
12:53
26 Feb
2024
11:10
27 Mar
2024
11:26
24 Apr
2024
08:13
24 Apr
2024
08:15
15 May
2024
14:02
26 Jun
2024
09:44
15 Jul
2024
11:58
0061pH7.426.767.627.336.777.447.447.37.787.62
0076Temperature of Water°C9.37.56.167.68813.516.615.6
0077Conductivity at 25 Cμs/cm51589566637575808166
0085BOD : 5 Day ATUmg/l1.3< 11.2< 11.3< 1
0111Ammoniacal Nitrogen as Nmg/l0.00390.00650.0460.0280.00750.00480.00490.0170.0110.0079
0116Nitrogen, Total Oxidised as Nmg/l0.420.510.590.570.590.570.560.590.560.45
0117Nitrate as Nmg/l0.4190.5090.5880.5690.5870.5650.5550.5870.5530.446
0118Nitrite as Nmg/l0.00130.00150.00240.00120.00260.00460.00460.00330.0070.0044
0119Ammonia un-ionised as Nmg/l2.0e-05< 1.0e-050.000268.0e-05< 1.0e-052.0e-052.0e-058.0e-050.00029.0e-05
0162Alkalinity to pH 4.5 as CaCO3mg/l10102010121413181814
0180Orthophosphate, reactive as Pmg/l0.0020.00260.00880.00270.00470.00230.00250.00580.00410.004
9901Oxygen, Dissolved, % Saturation%98.598.6100.1101.5101.698.598.5104.7101.2104.7
9924Oxygen, Dissolved as O2mg/l11.311.812.412.612.111.611.610.99.8410.4

Samples from 11 Dec 2019 to 30 Oct 2023

NotationDeterminandUnits11 Dec
2019
13:34
20 Jan
2020
12:10
26 Feb
2020
13:20
17 Mar
2020
15:12
28 Apr
2021
11:43
28 Jun
2023
14:24
20 Jul
2023
09:20
3 Aug
2023
12:49
8 Sep
2023
11:14
30 Oct
2023
13:54
0061pH7.277.588.047.718.057.068.027.577.47.38
0076Temperature of Water°C6.95.76.27.89.916.114.315.417.210.4
0077Conductivity at 25 Cμs/cm5263586013069504888120
0085BOD : 5 Day ATUmg/l< 1
0111Ammoniacal Nitrogen as Nmg/l0.00470.00380.00920.0050.0040.0260.00280.00520.00480.0083
0116Nitrogen, Total Oxidised as Nmg/l0.480.50.510.481.20.460.370.340.620.61
0117Nitrate as Nmg/l0.4790.4990.5090.4791.20.4570.3690.3380.6170.607
0118Nitrite as Nmg/l< 0.0010.0012< 0.001< 0.0010.00450.00320.00150.00160.00340.003
0119Ammonia un-ionised as Nmg/l1.0e-052.0e-050.000134.0e-057.0e-059.0e-057.0e-055.0e-054.0e-054.0e-05
0162Alkalinity to pH 4.5 as CaCO3mg/l810883010962320
0180Orthophosphate, reactive as Pmg/l0.00250.00270.00250.00230.00750.00890.0011< 0.0010.0060.0075
9901Oxygen, Dissolved, % Saturation%95.7100.596.6102102.599.1100.199.4103.5102.6
9924Oxygen, Dissolved as O2mg/l11.612.611.912.111.69.7410.29.919.9411.5