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sampling point
Downstream Lydd Stw

Description DOWNSTREAM LYDD SEWAGE TREATMENT WORKS
Sampling point ID SO-E0001524
Type Freshwater – Rivers
Status open
Location easting northing: 602800 120300
lat lon: 50.946452, 0.88562
Area Kent And South London
Sub-Area L&W East Kent And Stour Ksl
Summary 194 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.

33 determinands have been measured at this site
  • Alky pH 4.5
  • Ammonia(N)
  • B-[a]-pyrene
  • B-[b]-fluora
  • B-[ghi]-pery
  • B-[k]-fluora
  • BOD ATU
  • COPA
  • Calcium - Ca
  • Chloride Ion
  • Cond @ 20C
  • Cond @ 25C
  • Copper - Cu
  • Cu Filtered
  • Fluoranthene
  • Hardness
  • Ind123pyrene
  • Iron - as Fe
  • Magnesium-Mg
  • N Oxidised
  • NH3 un-ion
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • Orthophospht
  • Oxygen Diss
  • PFOS
  • River Flow
  • Temp Water
  • Zinc - as Zn
  • Zn- Filtered
  • pFoctanoate
  • pH

Sampling results

Displaying the twenty most recent samples. You can see all 194 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 16 Jul 2021 to 27 Jun 2024

NotationDeterminandUnits16 Jul
2021
09:37
23 Aug
2021
13:02
23 Sep
2021
10:12
18 Oct
2021
11:16
10 Nov
2021
14:45
16 Dec
2021
14:22
20 Jan
2022
15:35
23 Feb
2022
12:07
17 Mar
2022
12:05
27 Jun
2024
11:22
0061pH6.897.137.157.327.387.277.297.628.087.93
0076Temperature of Water°C16.617.314.713.112.810.65.91012.619.9
0077Conductivity at 25 Cμs/cm97963365873394910221036735825690
0085BOD : 5 Day ATUmg/l< 6
0111Ammoniacal Nitrogen as Nmg/l0.130.350.140.20.120.540.370.077< 0.030.073
0116Nitrogen, Total Oxidised as Nmg/l1.55.19.843.845.1181612
0117Nitrate as Nmg/l1.314.999.623.93.733.955.07181611.9
0118Nitrite as Nmg/l0.190.110.180.10.070.0530.0330.0280.0120.061
0119Ammonia un-ionised as Nmg/l0.000310.001510.000520.000970.000660.001950.000980.00059< 0.000660.00234
0162Alkalinity to pH 4.5 as CaCO3mg/l150170130190140170150120120140
0180Orthophosphate, reactive as Pmg/l1.62.82.81.30.990.970.943.63.42.2
9901Oxygen, Dissolved, % Saturation%7.632.154.749.575.647.166.697.5128.2107.7
9924Oxygen, Dissolved as O2mg/l0.7393.085.545.197.985.238.31113.69.79

Samples from 29 Aug 2019 to 9 Jun 2021

NotationDeterminandUnits29 Aug
2019
09:12
20 Sep
2019
13:43
16 Oct
2019
13:19
11 Nov
2019
13:41
16 Dec
2019
12:57
8 Jan
2020
12:25
7 Feb
2020
10:26
9 Mar
2020
10:05
14 May
2021
11:54
9 Jun
2021
12:13
0061pH7.097.247.397.347.77.777.477.57.517.15
0076Temperature of Water°C18.614.214.610.38.510.36.58.613.317.3
0077Conductivity at 25 Cμs/cm131611121522103084091098729581140912
0111Ammoniacal Nitrogen as Nmg/l0.270.0810.0510.0880.180.220.150.150.140.15
0116Nitrogen, Total Oxidised as Nmg/l0.457.61.13.1544.25.53.41.61.7
0117Nitrate as Nmg/l0.3817.531.083.133.974.175.483.381.541.62
0118Nitrite as Nmg/l0.0690.0670.0220.01970.0260.0350.0210.0240.0590.081
0119Ammonia un-ionised as Nmg/l0.001170.000360.000330.000360.001490.002430.000630.000790.001070.00068
0162Alkalinity to pH 4.5 as CaCO3mg/l15017083114140140170120160180
0180Orthophosphate, reactive as Pmg/l1.52.40.460.5090.730.921.10.521.11.8
9901Oxygen, Dissolved, % Saturation%9.219.468.163.76676.163.585.341.929.8
9924Oxygen, Dissolved as O2mg/l0.8581.996.917.137.718.517.799.944.372.85