sampling point
Blackwater At A30 Roadbridge, Blackwater
| Description | BLACKWATER AT A30 ROADBRIDGE, BLACKWATER |
|---|---|
| Sampling point ID | TH-PLDR0135 |
| Type | Freshwater – Rivers |
| Status | open |
| Location |
easting northing: 485410 159900 lat lon: 51.331786, -0.775436 |
| Area | West Thames |
| Sub-Area | L&W South Wt |
| Summary | 294 samples taken between 2024 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.
107 determinands have been measured at this site
- 12Propandiol
- 2,2' Oxybise
- Action taken
- Alky pH 4.5
- Ammonia in-s
- Ammonia(N)
- AmoniaTotYSI
- BOD ATU
- Butan1,3Diol
- Butan1,4Diol
- C - Org Filt
- C Organic DW
- CHLOROPHYLL
- COD as O2
- Ca Filtered
- Cadmium - Cd
- Calcium - Ca
- Cd - Dry Wt
- Cd Filtered
- Chloride Ion
- Chromium -Cr
- Cond @ 20C
- Cond @ 25C
- Copper - Cu
- Cr- Filtered
- Cu Filtered
- Cyanide - CN
- DrySolids30C
- Ethan1,2diol
- Fe- Filt
- GS Kurtosis
- GS Mean
- GS Median
- GSF 160-112
- GSF 11.4-9.1
- GSF 112-84
- GSF 125-249
- GSF 1k- 2k
- GSF 2000-500
- GSF 250-499
- GSF 261-160
- GSF 2k-4k
- GSF 39-30.3
- GSF 50.2-39
- GSF 500-999
- GSF 564-261
- GSF 62.5-124
- GSF 64-50
- GSF 7.2-5.8
- GSF 84-64
- GSF 9.1-7.2
- GSF <20
- GSF <2000um
- GSF <5.8 um
- GSF >2000um
- GSF >8000
- GSF14.5-11.4
- GSF18.5-14.5
- GSF23.7-18.5
- GSF30.3-23.7
- GSF4000-7999
- GraphSkewn
- Hardness
- Hg - Dry Wt
- Iron - as Fe
- Lead - as Pb
- Magnesium-Mg
- Mean dia
- Median dia
- Mercury - Hg
- Mg Filtered
- Mn BLM Bio
- Mn- Filtered
- N Oxidised
- NATGRIDREF
- NH3 un-ion
- Ni- Filtered
- Nickel - Ni
- Nitrate-N
- Nitrite-N
- O Diss %sat
- Oil & Grs Vs
- Orthophospht
- Oxygen Diss
- Pb Filtered
- Phenol Odour
- Propan13Diol
- SI-D
- SI-EC-CD
- SI-EC-F
- SI-EC-HG
- SI-GQA
- SI-M
- Sample Prep
- SiO2 Rv
- Sieved < 63
- Sld Sus@105C
- Sld V @400C
- Sld V @480C
- Solids <63um
- Sort Coeff
- Temp Water
- TriethylnGly
- Type of Flow
- Zinc - as Zn
- pH
- pH in-situ
Sampling results
Displaying the twenty most recent samples. You can see all 294 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).
Samples from 7 Nov 2023 to 15 Jul 2024
Samples from 12 Dec 2019 to 2 Oct 2023
| Notation | Determinand | Units | 12 Dec 2019 08:08 | 8 Jan 2020 08:44 | 7 Feb 2020 09:40 | 3 Mar 2020 11:31 | 19 Jun 2023 09:01 | 19 Jul 2023 10:02 | 4 Aug 2023 10:50 | 4 Sep 2023 14:19 | 18 Sep 2023 11:54 | 2 Oct 2023 09:13 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0061 | pH | 7.79 | 7.54 | 7.64 | 7.54 | 7.37 | 7.27 | 7.27 | 7.16 | 7.25 | 7.36 | |
| 0076 | Temperature of Water | °C | 17.4 | 21.6 | 17.5 | |||||||
| 0077 | Conductivity at 25 C | μs/cm | 684 | 833 | 767 | |||||||
| 0085 | BOD : 5 Day ATU | mg/l | < 2 | < 2 | 1.1 | |||||||
| 0106 | Cadmium, Dissolved | μg/l | 0.029 | 0.01 | 0.014 | 0.031 | 0.017 | 0.015 | 0.017 | 0.015 | 0.016 | 0.012 |
| 0111 | Ammoniacal Nitrogen as N | mg/l | 0.06 | 1.5 | 0.12 | |||||||
| 0116 | Nitrogen, Total Oxidised as N | mg/l | 9.4 | 11 | 8 | |||||||
| 0117 | Nitrate as N | mg/l | 9.38 | 10.8 | 7.94 | |||||||
| 0118 | Nitrite as N | mg/l | 0.021 | 0.2 | 0.064 | |||||||
| 0119 | Ammonia un-ionised as N | mg/l | 0.00036 | 0.00951 | 0.00089 | |||||||
| 0162 | Alkalinity to pH 4.5 as CaCO3 | mg/l | 120 | 160 | 130 | |||||||
| 0180 | Orthophosphate, reactive as P | mg/l | 0.075 | 0.057 | 0.059 | |||||||
| 0235 | Magnesium, Dissolved | mg/l | 6.4 | 7.1 | 6.4 | 7 | 6.7 | 5.8 | 6.9 | 5.1 | 6.8 | |
| 0239 | Calcium, Dissolved | mg/l | 69 | 71 | 83 | 78 | 79 | 69 | 80 | 62 | 72 | |
| 0301 | Carbon, Organic, Dissolved as C :- {DOC} | mg/l | 5.8 | 6.4 | 5.5 | 7.3 | 6.6 | 6 | 5.1 | 6.3 | 7.2 | 5.5 |
| 6460 | Iron, Dissolved | μg/l | 200 | 150 | 170 | |||||||
| 9901 | Oxygen, Dissolved, % Saturation | % | 76.9 | 75 | 71.3 | |||||||
| 9924 | Oxygen, Dissolved as O2 | mg/l | 7.35 | 6.59 | 6.8 |