sampling point
New Denham Stream At Lime Walk, New Denh
| Description | NEW DENHAM STREAM AT LIME WALK, NEW DENHAM |
|---|---|
| Sampling point ID | TH-PCNR0206 |
| Type | Freshwater – Rivers |
| Status | closed |
| Location |
easting northing: 505220 185570 lat lon: 51.559202, -0.483564 |
| Area | Hertfordshire And North London |
| Sub-Area | L&W Herts & North London |
| Summary | 159 samples taken between 2014 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.
35 determinands have been measured at this site
- Action taken
- Alky pH 4.5
- Ammonia(N)
- BOD ATU
- Cadmium - Cd
- Chloride Ion
- Chromium -Cr
- Cond @ 25C
- Copper - Cu
- Lead - as Pb
- N Oxidised
- NH3 un-ion
- Nickel - Ni
- Nitrate-N
- Nitrite-N
- O Diss %sat
- Orthophospht
- Oxygen Diss
- PFOS
- PFdecncAcid
- PFdodencAcid
- PFheptncAcid
- PFhexncAcid
- PFnonncAcid
- PFoctncAcid
- PFpentncAcid
- PFtetdncAcid
- PFundencAcid
- SI-GQA
- Temp Water
- Type of Flow
- Zinc - as Zn
- pFoctanoate
- pH
- pH in-situ
Sampling results
Displaying the twenty most recent samples. You can see all 159 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).
Samples from 4 Apr 2013 to 10 Jan 2014
| Notation | Determinand | Units | 4 Apr 2013 10:22 | 16 Apr 2013 11:24 | 7 Jun 2013 13:04 | 18 Jul 2013 14:09 | 31 Jul 2013 14:26 | 13 Sep 2013 12:03 | 30 Sep 2013 11:59 | 29 Oct 2013 12:48 | 21 Nov 2013 12:59 | 10 Jan 2014 09:43 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0061 | pH | 7.84 | 7.96 | 8.01 | 7.73 | 7.75 | 7.78 | 7.8 | 7.68 | 7.74 | 7.69 | |
| 0076 | Temperature of Water | °C | 6.1 | 11.9 | 16.2 | 22.3 | 18 | 16.5 | 15.8 | 12.3 | 8.8 | 7.4 |
| 0111 | Ammoniacal Nitrogen as N | mg/l | < 0.03 | 0.096 | 0.05 | < 0.03 | 0.267 | 0.044 | 0.112 | 0.075 | 0.077 | 0.11 |
| 0116 | Nitrogen, Total Oxidised as N | mg/l | 8.35 | 6.5 | 8.19 | 11.8 | 8.7 | 12.3 | 12.9 | 6.73 | 13.6 | 6.07 |
| 0117 | Nitrate as N | mg/l | 8.33 | 6.43 | 8.13 | 11.7 | 8.56 | 12.3 | 12.8 | 6.68 | 13.5 | 6.02 |
| 0118 | Nitrite as N | mg/l | 0.0189 | 0.0666 | 0.0606 | 0.109 | 0.141 | 0.0373 | 0.0966 | 0.0519 | 0.0663 | 0.0451 |
| 0119 | Ammonia un-ionised as N | mg/l | < 0.00029 | 0.00184 | 0.00143 | < 0.00073 | 0.00497 | 0.00079 | 0.00199 | 0.00078 | 0.00071 | 0.00082 |
| 0180 | Orthophosphate, reactive as P | mg/l | 0.257 | 0.183 | 0.233 | 0.207 | 0.413 | 0.423 | 0.578 | 0.426 | 0.376 | 0.247 |
| 9901 | Oxygen, Dissolved, % Saturation | % | 100.6 | 102.7 | 98 | 96.2 | 82.4 | 93 | 95 | 84 | 85.3 | 88.8 |
| 9924 | Oxygen, Dissolved as O2 | mg/l | 12.5 | 11.1 | 9.61 | 8.34 | 7.78 | 9.06 | 9.39 | 8.97 | 9.89 | 10.7 |