sampling point
Chess At Chenies
| Description | CHESS AT CHENIES |
|---|---|
| Sampling point ID | TH-PCNR0015 |
| Type | Freshwater – Rivers |
| Status | closed |
| Location |
easting northing: 501474 198710 lat lon: 51.677994, -0.533781 |
| Area | Hertfordshire And North London |
| Sub-Area | L&W Herts & North London |
| Summary | 171 samples taken between 2013 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.
30 determinands have been measured at this site
- Action taken
- Alky pH 4.5
- Ammonia(N)
- AmoniaTotYSI
- BOD ATU
- Calcium - Ca
- Chloride Ion
- Cond @ 20C
- Cond @ 25C
- Copper - Cu
- Cu Filtered
- Hardness
- Magnesium-Mg
- N Oxidised
- NH3 un-ion
- Nitrate-N
- Nitrite-N
- O Diss %sat
- Oil & Grs Vs
- Orthophospht
- Oxygen Diss
- Phenol Odour
- SI-EC-F
- SI-GQA
- Sld Sus@105C
- Temp Water
- Type of Flow
- Zinc - as Zn
- pH
- pH in-situ
Sampling results
Displaying the twenty most recent samples. You can see all 171 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).
Samples from 5 Mar 2013 to 2 Dec 2013
| Notation | Determinand | Units | 5 Mar 2013 11:42 | 20 Mar 2013 12:34 | 2 May 2013 13:37 | 5 Jun 2013 12:01 | 18 Jul 2013 12:40 | 29 Jul 2013 11:25 | 3 Sep 2013 10:15 | 18 Oct 2013 12:01 | 13 Nov 2013 12:16 | 2 Dec 2013 11:04 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0061 | pH | 7.94 | 7.99 | 8.45 | 8.02 | 8.09 | 8.04 | 7.93 | 7.91 | 7.89 | 7.9 | |
| 0076 | Temperature of Water | °C | 8.4 | 7.8 | 13.6 | 15.1 | 19.2 | 17.8 | 15.8 | 12.6 | 8.8 | 8.6 |
| 0111 | Ammoniacal Nitrogen as N | mg/l | 0.073 | < 0.03 | < 0.03 | 0.12 | 0.034 | 0.052 | 0.087 | 0.05 | 0.045 | 0.06 |
| 0118 | Nitrite as N | mg/l | 0.123 | 0.0283 | 0.0378 | 0.106 | 0.0426 | 0.0372 | 0.0787 | 0.0298 | 0.0359 | 0.0351 |
| 0119 | Ammonia un-ionised as N | mg/l | 0.00103 | < 0.00046 | < 0.00071 | 0.00318 | 0.00121 | 0.00167 | 0.00207 | 0.0009 | 0.00059 | 0.00079 |
| 0135 | Solids, Suspended at 105 C | mg/l | 4.73 | 6.35 | 6.77 | 4.57 | 5.7 | 4.6 | 3.82 | 4.3 | < 3 | < 3 |
| 0664 | Visible oil or grease, significant trace: Present/Not found (1/0) | pres/nf | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 6450 | Copper, Dissolved | μg/l | 1.45 | 1.38 | 1.2 | 1.19 | 1.49 | 1.23 | 1.23 | 1.57 | 1.62 | 1.61 |
| 6455 | Zinc | μg/l | 8.09 | 6.51 | < 5 | 5.43 | 5.24 | 6.75 | 6.35 | 6.89 | 7.59 | 8.04 |
| 6841 | Phenolic Odour | pres/nf | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 9901 | Oxygen, Dissolved, % Saturation | % | 102 | 95.4 | 151.5 | 118.3 | 110.9 | 103.8 | 89.6 | 91.8 | 89.8 | 88.6 |
| 9924 | Oxygen, Dissolved as O2 | mg/l | 11.9 | 11.3 | 15.7 | 11.9 | 10.2 | 9.84 | 8.86 | 9.74 | 10.4 | 10.3 |