51 | Analogue (nutrient), YSI, turbidity and stage data for the Wensum Demontration Test Catchment's monitoring kiosk E in 2011 |
52 | An audit of performance in the analysis of biological samples in 2000. Environment Agency : AQC audit : C00158/11 |
53 | An audit of performance in the analysis of biological samples in 2000. Environment Agency : primary audit : C00158/10 |