601 | River Gannel catchment river water quality classification 1990 |
602 | River Fal catchment river water quality classification 1990 |
603 | River Erme catchment river water quality classification 1990 |
604 | Fishery survey of the River Yeo catchment |
605 | Uses of the water environment: factsheet number six |
606 | River water quality 1992 classification by determinand : environmental protection draft final report |
607 | River Lim : catchment action plan |
608 | Annual classification of river water quality 1991 : identification of possible causes of non-compliance with river quality objectives |
609 | Fishery survey of the River Axe catchment |
610 | River Taw : catchment action plan |
611 | An investigation to determine the water quality of Churchstanton Stream |
612 | Fishery survey of the Bridgwater and Taunton Canal |
613 | River Taw catchment river water quality classification 1990 |
614 | River Tamar (not Tavy and Lynher) : catchment action plan |
615 | Fishery survey of the Horner Water catchment |
616 | River Thames (Benson to Hurley) Pang and Wye catchment review |