sampling point
R.Blackwater Straits Mill
| Description | R.BLACKWATER STRAITS MILL |
|---|---|
| Sampling point ID | AN-BL0675 |
| Type | Freshwater – Rivers |
| Status | open |
| Location |
easting northing: 576979 224328 lat lon: 51.889402, 0.570367 |
| Area | Essex Norfolk And Suffolk |
| Sub-Area | Essex Team Sub Area |
| Summary | 243 samples taken between 2019 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.
22 determinands have been measured at this site
- Alky pH 4.5
- Ammonia(N)
- BOD ATU
- Chloride Ion
- Cond @ 20C
- Cond @ 25C
- N Inorganic
- N Oxidised
- NH3 un-ion
- NO FLOW/SAMP
- Nitrate-N
- Nitrite-N
- O Diss %sat
- Orthophospht
- Oxygen Diss
- TBTCationWWT
- Temp Water
- TriBT Cation
- Turbidity
- TurbidityNTU
- pH
- pH Inst unit
Sampling results
Displaying the twenty most recent samples. You can see all 243 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).
Samples from 6 Sep 2017 to 13 May 2019
Samples from 13 May 2015 to 9 Nov 2016
| Notation | Determinand | Units | 13 May 2015 13:46 | 1 Jun 2015 12:47 | 14 Jul 2015 10:10 | 5 Aug 2015 13:43 | 10 Sep 2015 09:50 | 13 Oct 2015 14:35 | 9 Feb 2016 09:05 | 12 May 2016 09:18 | 31 Aug 2016 13:43 | 9 Nov 2016 13:38 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0061 | pH | 8.01 | 8.14 | 8.31 | 8.33 | 7.91 | 8.15 | |||||
| 0076 | Temperature of Water | °C | 17.5 | 10.7 | 5.8 | 15.7 | 18.8 | 7.3 | ||||
| 0077 | Conductivity at 25 C | μs/cm | 819 | 889 | 981 | 893 | 823 | 883 | 770 | 851 | 913 | 852 |
| 0111 | Ammoniacal Nitrogen as N | mg/l | 0.091 | < 0.03 | 0.071 | 0.096 | 0.044 | < 0.03 | ||||
| 0116 | Nitrogen, Total Oxidised as N | mg/l | 6.01 | 9.04 | 7.58 | 7.26 | 6.48 | 6.66 | ||||
| 0117 | Nitrate as N | mg/l | 5.94 | 9.01 | 7.54 | 7.18 | 6.42 | 6.64 | ||||
| 0118 | Nitrite as N | mg/l | 0.0737 | 0.0252 | 0.0351 | 0.0819 | 0.0561 | 0.0156 | ||||
| 0119 | Ammonia un-ionised as N | mg/l | 0.00287 | < 0.00058 | 0.00095 | 0.00265 | 0.00124 | < 0.00045 | ||||
| 0162 | Alkalinity to pH 4.5 as CaCO3 | mg/l | 267 | 256 | 263 | 262 | 264 | 239 | ||||
| 0172 | Chloride | mg/l | 49.7 | 68 | 85.6 | 69.5 | 54.1 | 62 | ||||
| 0180 | Orthophosphate, reactive as P | mg/l | 0.424 | 0.396 | 0.193 | 0.219 | 0.401 | 0.162 | ||||
| 6396 | Turbidity | ntu | 3.8 | 2.6 | 3.5 | 1.9 | 2 | 2.8 | ||||
| 9901 | Oxygen, Dissolved, % Saturation | % | 85.1 | 89.6 | 98.7 | 96 | 89.6 | 89.8 | ||||
| 9924 | Oxygen, Dissolved as O2 | mg/l | 8.11 | 9.92 | 12.3 | 9.51 | 8.32 | 10.8 |