sampling point
River Yealm D/S Yealmpton Stw
| Description | RIVER YEALM BELOW YEALMPTON STW |
|---|---|
| Sampling point ID | SW-81020109 |
| Type | Freshwater – Rivers |
| Status | closed |
| Location |
easting northing: 257610 51281 lat lon: 50.344188, -4.00251 |
| Area | Devon And Cornwall |
| Sub-Area | Central Devon And Cornwall |
| Summary | 97 samples taken between 2006 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.
41 determinands have been measured at this site
- Action taken
- Alky pH 4.5
- Ammonia(N)
- As-Filtered
- BOD ATU
- Ca Filtered
- Cadmium - Cd
- Calcium - Ca
- Cd DW <63
- Cd - Dry Wt
- ColformsPre
- Cond @ 20C
- Cr- Filtered
- Cu Filtered
- F Coli Pre
- Hardness
- Hdnss Ca
- Hdnss Mg
- Magnesium-Mg
- Mg Filtered
- N Inorganic
- N Oxidised
- NH3 un-ion
- Ni- Filtered
- Nitrate-N
- Nitrite-N
- O Diss %sat
- Orthophospht
- Oxygen Diss
- Pb Filtered
- Potassium- K
- Sld NV@500C
- Sld Sus@105C
- StrepF PMF
- Temp Water
- TurbidityNTU
- Type of Flow
- WethPresPrec
- WethPresTemp
- Zinc - as Zn
- pH
Sampling results
Displaying the twenty most recent samples. You can see all 97 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).
Samples from 2 May 2006 to 12 Dec 2006
Samples from 27 Jul 2005 to 30 Mar 2006
| Notation | Determinand | Units | 27 Jul 2005 13:34 | 24 Aug 2005 09:40 | 6 Sep 2005 14:45 | 11 Oct 2005 09:05 | 27 Oct 2005 09:25 | 22 Nov 2005 12:20 | 14 Dec 2005 13:00 | 31 Jan 2006 09:20 | 23 Feb 2006 09:20 | 30 Mar 2006 12:15 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0061 | pH | 7.7 | 7.68 | 7.7 | 7.63 | 7.56 | 7.74 | 7.77 | 7.69 | 7.44 | 7.78 | |
| 0062 | Conductivity at 20 C | μs/cm | 124 | 184 | ||||||||
| 0076 | Temperature of Water | °C | 15.4 | 15.2 | 16.2 | 13.9 | 13.5 | 8.6 | 8.45 | 5.9 | 5.5 | 10.1 |
| 0085 | BOD : 5 Day ATU | mg/l | 3.56 | 1.72 | < 1 | < 1 | < 1 | 1.13 | 1.27 | 1.01 | 1.3 | |
| 0111 | Ammoniacal Nitrogen as N | mg/l | 0.147 | 0.122 | 0.053 | 0.051 | 0.044 | < 0.03 | < 0.03 | 0.157 | 0.031 | 0.075 |
| 0116 | Nitrogen, Total Oxidised as N | mg/l | 1.95 | 2.02 | 3.31 | 3.25 | 3.32 | 3.41 | 3.13 | 2.12 | ||
| 0117 | Nitrate as N | mg/l | 1.9 | 2.01 | 3.3 | 3.25 | 3.32 | 3.4 | 3.13 | 2.11 | ||
| 0118 | Nitrite as N | mg/l | 0.0476 | 0.0087 | 0.008 | 0.0045 | < 0.004 | 0.0071 | < 0.004 | 0.0059 | ||
| 0119 | Ammonia un-ionised as N | mg/l | 0.00202 | 0.00158 | 0.00077 | 0.00053 | 0.00038 | < 0.00027 | < 0.00029 | 0.00105 | 0.00011 | 0.00084 |
| 0135 | Solids, Suspended at 105 C | mg/l | 39.3 | < 3 | ||||||||
| 0143 | Solids, non-volatile at 500 C | mg/l | 29.7 | < 20 | ||||||||
| 0180 | Orthophosphate, reactive as P | mg/l | 0.171 | 0.105 | 0.036 | 0.041 | 0.03 | 0.145 | 0.029 | 0.035 | ||
| 0211 | Potassium | mg/l | 2.89 | 2.3 | 1.86 | 1.9 | 1.73 | 2.06 | 1.77 | 1.85 | ||
| 1183 | Weather : Precipitation | 2 | 2 | 1 | 1 | 2 | 1 | 2 | 2 | |||
| 3267 | Type of flow as description | 3 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | |||
| 3461 | Coliforms, Faecal : Presumptive : MF | no/100ml | 62000 | 14000 | ||||||||
| 3683 | Nitrogen, Total Inorganic : (Calculated) | mg/l | 2.07 | 2.07 | 3.35 | 3.28 | 3.35 | 3.57 | 3.16 | 2.2 | ||
| 6396 | Turbidity | ntu | 23.2 | 1.2 | ||||||||
| 6423 | Streptococci : Faecal : Presumptive : MF | no/100ml | 32000 | 920 | ||||||||
| 9901 | Oxygen, Dissolved, % Saturation | % | 90.7 | 94 | 94 | 90 | 91 | 96 | 97.5 | 93 | 93 | 90 |
| 9924 | Oxygen, Dissolved as O2 | mg/l | 9.41 | 9.27 | 9.46 | 11.2 | 11.4 | 11.6 | 11.7 | 10.1 | ||
| 9933 | Coliforms, Total : Presumptive : MF | no/100ml | 840000 | 17000 |