sampling point
Lee At Rye House
| Description | LEE AT RYE HOUSE |
|---|---|
| Sampling point ID | TH-PLER0073 |
| Type | Freshwater – Rivers |
| Status | open |
| Location |
easting northing: 538504 209875 lat lon: 51.770416, 0.005912 |
| Area | Hertfordshire And North London |
| Sub-Area | L&W Herts & North London |
| Summary | 179 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.
87 determinands have been measured at this site
- 11Cl-PF3OUdS
- 3:3 FTCA
- 4:2 FTSA
- 5:3 FTCA
- 6:2 FTSA
- 7:3 FTCA
- 8:2 FTSA
- 9Cl-PF3ONS
- ADONA
- Action taken
- Al- Filtered
- Alky pH 4.5
- Aluminium-Al
- Ammonia(N)
- AmoniaTotYSI
- BOD ATU
- CHLOR A
- CHLOROPHYLL
- Cadmium - Cd
- Calcium - Ca
- Chloride Ion
- Chromium -Cr
- Cond @ 20C
- Cond @ 25C
- Copper - Cu
- Cu Filtered
- EtFOSA
- EtFOSAA-B
- EtFOSAA-L
- FBSA
- FOSA
- HFPO-DA
- Hardness
- Lead - as Pb
- Magnesium-Mg
- MeFOSAA-B
- MeFOSAA-L
- Mercury - Hg
- N Oxidised
- N-MeFOSA
- NFDHA
- NH3 un-ion
- Nickel - Ni
- Nitrate-N
- Nitrite-N
- O Diss %sat
- Oil & Grs Vs
- Orthophospht
- Oxygen Diss
- PFBA
- PFBS
- PFDS
- PFDoS
- PFEESA
- PFHpS
- PFHxS-B
- PFHxS-L
- PFHxSA
- PFMOBA
- PFMOPrA
- PFNS
- PFODA
- PFOS (B)
- PFOS (L)
- PFPeS
- PFTrDA
- PFUnDS
- PFdecncAcid
- PFdodencAcid
- PFecHS
- PFheptncAcid
- PFhexncAcid
- PFnonncAcid
- PFoctncAcid
- PFpentncAcid
- PFtetdncAcid
- PFundencAcid
- Phenol Odour
- SI-EC-F
- SI-GQA
- Sld Sus@105C
- Temp Water
- Triclosan
- Type of Flow
- Zinc - as Zn
- pH
- pH in-situ
Sampling results
Displaying the twenty most recent samples. You can see all 179 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).
Samples from 9 Oct 2019 to 15 Jul 2024
| Notation | Determinand | Units | 9 Oct 2019 11:16 | 15 Nov 2019 12:00 | 3 Dec 2019 15:25 | 15 Jan 2020 14:44 | 3 Feb 2020 13:55 | 3 Mar 2020 13:15 | 5 Jul 2023 09:26 | 1 Nov 2023 11:38 | 17 Jun 2024 09:07 | 15 Jul 2024 11:24 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0061 | pH | 7.84 | 7.99 | 7.89 | 8.04 | 8.11 | 7.93 | 7.91 | 7.89 | |||
| 0076 | Temperature of Water | °C | 12.9 | 7.3 | 5.5 | 9 | 8.6 | 7 | 14.9 | 15.9 | ||
| 0077 | Conductivity at 25 C | μs/cm | 625 | 725 | 756 | 715 | 787 | 702 | 750 | 726 | ||
| 0085 | BOD : 5 Day ATU | mg/l | 1.5 | < 1 | ||||||||
| 0111 | Ammoniacal Nitrogen as N | mg/l | 0.051 | < 0.03 | 0.052 | 0.034 | < 0.03 | < 0.03 | < 0.03 | < 0.03 | ||
| 0116 | Nitrogen, Total Oxidised as N | mg/l | 5 | 8.44 | 8.8 | 10 | 9 | 7.8 | 7.1 | 6.3 | ||
| 0117 | Nitrate as N | mg/l | 4.98 | 8.42 | 8.77 | 9.98 | 8.98 | 7.78 | 7.08 | 6.29 | ||
| 0118 | Nitrite as N | mg/l | 0.024 | 0.0173 | 0.03 | 0.025 | 0.025 | 0.016 | 0.019 | 0.015 | ||
| 0119 | Ammonia un-ionised as N | mg/l | 0.0008 | < 0.00044 | 0.00053 | 0.00058 | < 0.00049 | < 0.00037 | < 0.00064 | < 0.00066 | ||
| 0162 | Alkalinity to pH 4.5 as CaCO3 | mg/l | 210 | 212 | 230 | 220 | 250 | 220 | 250 | 250 | ||
| 0180 | Orthophosphate, reactive as P | mg/l | 0.17 | 0.194 | 0.23 | 0.16 | 0.15 | 0.11 | 0.14 | 0.15 | ||
| 2921 | Perfluoro-3-methoxypropanoic acid | μg/l | < 0.0005 | < 0.0005 | ||||||||
| 2922 | Perfluoro-3,6-dioxaheptanoic acid | μg/l | < 0.0005 | < 0.0005 | ||||||||
| 2923 | Perfluoro(4-methoxybutanoic) acid | μg/l | < 0.0005 | < 0.0005 | ||||||||
| 2924 | Perfluoro(2-ethoxyethane)sulfonic acid | μg/l | < 0.0005 | < 0.0005 | ||||||||
| 2925 | 3-Perfluoroheptylpropanoic acid | μg/l | < 0.0005 | < 0.0005 | ||||||||
| 2926 | 3:3 Fluorotelomer carboxylic acid | μg/l | < 0.004 | < 0.004 | ||||||||
| 2942 | 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) | μg/l | < 0.001 | < 0.001 | ||||||||
| 2943 | 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) | μg/l | < 0.002 | < 0.002 | ||||||||
| 2944 | Perfluorohexanesulfonic acid (B) | μg/l | 0.00056 | < 0.0005 | ||||||||
| 2953 | Perfluoroundecane sulfonic acid | μg/l | < 0.004 | < 0.004 | ||||||||
| 2955 | Perfluorotridecanoic acid | μg/l | < 0.005 | < 0.005 | ||||||||
| 2957 | Perfluoropentanesulfonic acid | μg/l | < 0.0005 | < 0.0005 | ||||||||
| 2959 | Perfluorooctanesulfonic acid (linear) | μg/l | 0.0037 | 0.0024 | ||||||||
| 2960 | Perfluorooctanesulfonic acid (branched) | μg/l | 0.0021 | 0.0021 | ||||||||
| 2961 | Perfluorooctanesulfonamide | μg/l | < 0.001 | < 0.001 | ||||||||
| 2962 | Perfluorooctadecanoic acid | μg/l | < 0.002 | < 0.002 | ||||||||
| 2963 | Perfluorononanesulfonic acid | μg/l | < 0.0005 | < 0.0005 | ||||||||
| 2964 | Perfluorohexanesulfonic acid (L) | μg/l | 0.0026 | 0.0018 | ||||||||
| 2965 | Perfluorohexanesulfonamide | μg/l | < 0.0005 | < 0.0005 | ||||||||
| 2967 | Perfluoroheptanesulfonic acid | μg/l | < 0.0005 | < 0.0005 | ||||||||
| 2968 | Perfluorododecane sulfonic acid | μg/l | < 0.005 | < 0.005 | ||||||||
| 2969 | Perfluorodecanesulfonic acid | μg/l | < 0.002 | < 0.002 | ||||||||
| 2970 | Perfluorobutylsulfonamide (perfluorobutane sulfonamide) | μg/l | 0.00054 | < 0.0005 | ||||||||
| 2972 | Perfluorobutanesulfonic acid | μg/l | 0.0021 | 0.0023 | ||||||||
| 2973 | Perfluoro-4-ethylcyclohexanesulfonic acid | μg/l | 0.00095 | 0.00053 | ||||||||
| 2975 | N-methylperfluorooctanesulfonamide | μg/l | < 0.002 | < 0.002 | ||||||||
| 2977 | N-Ethylperfluorooctanesulfonamide | μg/l | < 0.002 | < 0.002 | ||||||||
| 2981 | Hexafluoropropylene oxide dimer acid (Gen X) | μg/l | < 0.001 | < 0.001 | ||||||||
| 2982 | 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid | μg/l | < 0.0005 | < 0.0005 | ||||||||
| 2983 | 8:2 Fluorotelomer sulfonic acid | μg/l | < 0.001 | < 0.001 | ||||||||
| 2984 | 6:2 Fluorotelomer sulfonic acid | μg/l | < 0.001 | 0.0012 | ||||||||
| 2987 | 4:2 Fluorotelomer sulfonic acid | μg/l | < 0.0005 | < 0.0005 | ||||||||
| 2988 | 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | μg/l | < 0.005 | < 0.005 | ||||||||
| 2989 | 2H,2H,3H,3H-Perfluorooctanoic acid | μg/l | < 0.001 | < 0.001 | ||||||||
| 2990 | 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) | μg/l | < 0.0005 | < 0.0005 | ||||||||
| 2991 | 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) | μg/l | < 0.001 | < 0.001 | ||||||||
| 2993 | 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) | μg/l | < 0.001 | < 0.001 | ||||||||
| 2995 | Perfluorobutanoic acid | μg/l | 0.0032 | 0.0029 | ||||||||
| 8887 | Perfluoropentanoic acid | μg/l | 0.003 | 0.0025 | ||||||||
| 8888 | Perfluorohexanoic acid | μg/l | 0.0029 | 0.0023 | ||||||||
| 8889 | Perfluoroheptanoic acid | μg/l | 0.0013 | 0.0011 | ||||||||
| 8890 | Perfluorooctanoic acid | μg/l | 0.0023 | 0.0014 | ||||||||
| 8891 | Perfluorononanoic acid | μg/l | < 0.001 | < 0.001 | ||||||||
| 8892 | Perfluorodecanoic acid | μg/l | < 0.002 | < 0.002 | ||||||||
| 8893 | Perfluoroundecanoic acid | μg/l | < 0.002 | < 0.002 | ||||||||
| 8894 | Perfluorododecanoic acid | μg/l | < 0.002 | < 0.002 | ||||||||
| 8895 | Perfluorotetradecanoic acid | μg/l | < 0.006 | < 0.006 | ||||||||
| 9901 | Oxygen, Dissolved, % Saturation | % | 77.1 | 86.8 | 82.9 | 95.7 | 98.3 | 94.8 | 91.6 | 96.2 | ||
| 9924 | Oxygen, Dissolved as O2 | mg/l | 8.12 | 10.4 | 10.4 | 11 | 11.5 | 11.5 | 9.23 | 9.49 |