sampling point
R.Chelmer Sandford Mill
| Description | R.CHELMER SANDFORD MILL |
|---|---|
| Sampling point ID | AN-CH04 |
| Type | Freshwater – Rivers |
| Status | open |
| Location |
easting northing: 574000 206040 lat lon: 51.726072, 0.517949 |
| Area | Essex Norfolk And Suffolk |
| Sub-Area | Essex Team Sub Area |
| Summary | 180 samples taken between 2017 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.
28 determinands have been measured at this site
- Alky pH 4.5
- Ammonia(N)
- BOD ATU
- CHLOR A
- CHLOROPHYLL
- COD as O2
- Chloride Ion
- Cond @ 20C
- Cond @ 25C
- Fluoroxypyr
- GCMS S-Vol
- ICP-MS Semiq
- N Inorganic
- N Oxidised
- NATGRIDREF
- NH3 un-ion
- Nitrate-N
- Nitrite-N
- O Diss %sat
- Orthophospht
- Oxygen Diss
- SiO2 Rv
- Sld Sus@105C
- Temp Water
- Turbidity
- TurbidityNTU
- pH
- pH Inst unit
Sampling results
Displaying the twenty most recent samples. You can see all 180 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).
Samples from 19 Nov 2013 to 12 May 2017
| Notation | Determinand | Units | 19 Nov 2013 11:52 | 2 Jan 2014 13:05 | 6 Feb 2014 09:25 | 3 Mar 2014 11:49 | 1 Apr 2014 12:39 | 9 May 2014 15:09 | 4 Jun 2014 09:36 | 22 Jul 2014 11:25 | 8 Aug 2014 10:19 | 12 May 2017 13:15 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0076 | Temperature of Water | °C | 7.6 | 7.2 | 6.2 | 7.2 | 11.7 | 14.2 | 15.3 | 19.7 | 19.4 | 15.1 |
| 0077 | Conductivity at 25 C | μs/cm | 896 | 583 | 681 | 646 | 864 | 894 | 839 | 474 | 778 | |
| 0085 | BOD : 5 Day ATU | mg/l | < 1 | 2.44 | 1.55 | 1.48 | 2.01 | 1.37 | 1.25 | 1.86 | < 1 | 1.42 |
| 0092 | Chemical Oxygen Demand :- {COD} | mg/l | 18 | 51 | 30 | 31 | 16 | 25 | 17 | 37 | 19 | |
| 0111 | Ammoniacal Nitrogen as N | mg/l | 0.603 | 0.073 | 0.072 | 0.053 | < 0.03 | < 0.03 | 0.064 | 0.074 | < 0.03 | |
| 0116 | Nitrogen, Total Oxidised as N | mg/l | 8.16 | 7.83 | 5.89 | 4.6 | 6.02 | 6.17 | 6.95 | 3.48 | 3.11 | |
| 0117 | Nitrate as N | mg/l | 8.11 | 7.8 | 5.85 | 4.56 | 5.99 | 6.13 | 6.9 | 3.4 | 3.07 | |
| 0118 | Nitrite as N | mg/l | 0.0458 | 0.0294 | 0.0358 | 0.0371 | 0.0327 | 0.0368 | 0.0532 | 0.083 | 0.0359 | |
| 0135 | Solids, Suspended at 105 C | mg/l | < 3 | 121 | 38.1 | 76.9 | 6.2 | 6.28 | 4.73 | 15.3 | < 3 | 5.03 |
| 0172 | Chloride | mg/l | 62.9 | 29.1 | 38 | 35.2 | 67 | 72.7 | 59.9 | 32.6 | 76.4 | |
| 0180 | Orthophosphate, reactive as P | mg/l | 0.217 | 0.13 | 0.113 | 0.1 | 0.1 | 0.252 | 0.301 | 0.383 | 0.283 | |
| 0182 | Silica, reactive as SiO2 | mg/l | 11.4 | 8.5 | 8.75 | 8.18 | 2.08 | 2.13 | 9.1 | 10.3 | 6.72 | |
| 3106 | GCMS Screen : Semi-Volatile Screen: Semi Quantitative | 1 | ||||||||||
| 3401 | ICP-MS : Metals screen : Semi-quantitative | 1 | ||||||||||
| 7434 | National Grid Reference : Whole : Field report | 1 | ||||||||||
| 7887 | Chlorophyll : Acetone Extract | μg/l | 0.93 | 5.1 | 1.7 | 3.8 | 18 | 6.2 | 3.3 | 4.5 | 6.1 | |
| 9901 | Oxygen, Dissolved, % Saturation | % | 98.4 | 87 | 97.1 | 101.5 | 111.1 | 108.2 | 89 | 83.2 | 93.4 | 115.6 |
| 9924 | Oxygen, Dissolved as O2 | mg/l | 11.7 | 10.5 | 12 | 12.2 | 12 | 11.1 | 8.89 | 7.59 | 8.57 |