sampling point
Seventy Acres Lake :Fishers Green
| Description | SEVENTY ACRES LAKE :FISHERS GREEN |
|---|---|
| Sampling point ID | TH-PGWL0173 |
| Type | Freshwater – Lakes/Ponds/Reservoirs |
| Status | open |
| Location |
easting northing: 537410 202690 lat lon: 51.706124, -0.012768 |
| Area | Hertfordshire And North London |
| Sub-Area | L&W Herts & North London |
| Summary | 169 samples taken between 2022 and 2007 |
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.
11 determinands have been measured at this site
- Alky pH 4.5
- CHLOROPHYLL
- Colour Filt
- Cond @ 20C
- Cond @ 25C
- N Oxid Filt
- Nitrogen - N
- OrthophsFilt
- Phosphorus-P
- Phytoplankto
- Type of Flow
Sampling results
Displaying the twenty most recent samples. You can see all 169 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).
Samples from 24 Oct 2019 to 28 Jan 2022
| Notation | Determinand | Units | 24 Oct 2019 13:12 | 20 Nov 2019 12:24 | 11 Dec 2019 13:05 | 22 Jan 2020 13:48 | 5 Feb 2020 12:16 | 4 Mar 2020 12:41 | 27 Apr 2021 14:45 | 16 Sep 2021 11:04 | 18 Nov 2021 14:06 | 28 Jan 2022 13:47 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0072 | Colour, Filtered | hazen | 9.3 | 8.4 | 6.5 | 9.1 | 8.5 | 9.2 | 8.3 | 12 | ||
| 0077 | Conductivity at 25 C | μs/cm | 801 | 816 | 817 | 702 | 787 | 751 | 786 | 632 | 801 | 764 |
| 0162 | Alkalinity to pH 4.5 as CaCO3 | mg/l | 200 | 209 | 200 | 210 | 210 | 210 | 200 | 190 | 230 | 240 |
| 0348 | Phosphorus, Total as P | mg/l | 0.15 | 0.18 | 0.18 | 0.16 | 0.12 | 0.091 | 0.084 | 0.21 | 0.24 | 0.17 |
| 7887 | Chlorophyll : Acetone Extract | μg/l | 8 | 3.8 | 8.1 | 8.1 | 8.6 | 47 | 1.4 | 31 | 70 | |
| 9686 | Nitrogen, Total as N | mg/l | 1.8 | 1.94 | 3.3 | 3.4 | 3.7 | 2.5 | 3 | 2 | 7.1 | 5.7 |
| 9856 | Orthophosphate, Filtered as P | mg/l | 0.14 | 0.149 | 0.15 | 0.13 | 0.11 | 0.023 | 0.051 | 0.12 | 0.21 | 0.089 |
| 9943 | Nitrogen, Total Oxidised, Filtered as N | mg/l | 1 | 1.27 | 2.8 | 2.9 | 3.2 | 1.7 | 2.2 | 0.82 | 6.4 | 4.7 |
Samples from 12 Dec 2018 to 25 Sep 2019
| Notation | Determinand | Units | 12 Dec 2018 13:10 | 22 Jan 2019 14:30 | 6 Feb 2019 12:04 | 18 Mar 2019 12:33 | 3 Apr 2019 13:01 | 15 May 2019 11:34 | 26 Jun 2019 12:38 | 30 Jul 2019 12:58 | 19 Aug 2019 14:27 | 25 Sep 2019 12:21 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0072 | Colour, Filtered | hazen | 9.8 | 9 | 7.3 | 9.4 | 8.7 | 11 | 9.6 | 11 | 8.5 | 9.7 |
| 0077 | Conductivity at 25 C | μs/cm | 792 | 814 | 805 | 729 | 753 | 736 | 753 | 789 | 811 | 840 |
| 0162 | Alkalinity to pH 4.5 as CaCO3 | mg/l | 226 | 224 | 220 | 152 | 176 | 158 | 184 | 200 | 200 | 200 |
| 0348 | Phosphorus, Total as P | mg/l | 0.202 | 0.174 | 0.218 | 0.114 | 0.111 | 0.207 | 0.208 | 0.26 | 0.2 | 0.2 |
| 7887 | Chlorophyll : Acetone Extract | μg/l | 10.3 | 10.3 | 32.3 | 168 | 18.8 | 4.6 | 5.7 | 60 | 46 | 28 |
| 9686 | Nitrogen, Total as N | mg/l | 2.55 | 2.94 | 3.12 | 2.2 | 3.04 | 3.26 | 1.91 | 1.4 | 1.4 | 2.1 |
| 9856 | Orthophosphate, Filtered as P | mg/l | 0.176 | 0.147 | 0.115 | 0.0207 | 0.0509 | 0.156 | 0.173 | 0.2 | 0.14 | 0.19 |
| 9943 | Nitrogen, Total Oxidised, Filtered as N | mg/l | 1.77 | 2.25 | 2.15 | 0.571 | 1.84 | 1.41 | 1.1 | 0.51 | 0.62 | 1.3 |