Water Chemistry Data from the Wolf and Tamar catchment in South West England

The suite of chemical determinants in river water samples were collected from the Wolf/Tamar catchment in December 2013. The sampling sites were determined from maps and in field to provide good spatial coverage of the Wold River through to the Tamar River. A 5 litre bucket was filled with stream water. An Ultrameter multiprobe was used to measure water temperature, conductivity, Ph and organic reactive phosphorous (ORP) in the field. A 300 ml sample of water from the bucket was taken in a plastic bottle, constituting the 'unfiltered' sample. A second 300ml bottle was filled with water filtered through a syringe and filter (GFC 0.45­μm),constituting the 'filtered' sample. Samples were kept in the cold and removed to the laboratory for analyses. The standard chemistry methods were used for analyzing NH4, TDP and other chemical determinants.