76 | An investigation to determine the source of high levels of gamma-HCH in the Newlyn River during summer 1989 |
77 | An assessment of the causes of non-compliance with river quality standards within the River Tiddy catchment (1989-1991) |
78 | Quality audit of biological samples for the 1991 river quality survey |
79 | Lakes, Ponds and Reservoirs in the Southern Region (NRA) |
80 | Identification of water quality problems in the Strat and Neet catchments |
81 | Second annual review of the Sid/Otter catchment management plan 1999 |
82 | Second annual review of the Seaton, Looe and Fowey catchment management plan |
83 | The Yarrow catchment : recommendations for statutory water quality objectives |
84 | The Adur and Ouse catchment abstraction management strategy : consultation document |
85 | Environmental protection and pollution control : in the North West |
86 | Investigation of mercury contamination in the Red River catchment, West Cornwall |
87 | Macroinvertebrates of the River Nar : Great Ouse catchment : draft report |
88 | Report on the quality of bathing waters 1990 |
89 | Reduction in aldrin and dieldrin concentrations in the Newlyn River |
90 | Historic changes in the Upper River Ehen Catchment- Summary |
91 | Quality audit of biological samples for the 1990 river quality survey |
92 | The Tame catchment management plan : consultation report summary : January 1996 |
93 | The Ribble Estuary 1992 surveys : summary of results |
94 | Impact assessment of acidic and metalliferous pollution in the Fowley Stream |
95 | Second annual review of the River Taw catchment management plan |
96 | Second annual review of the River Torridge catchment management plan |
97 | Second annual review of the Taw / Torridge Estuary catchment management plan |
98 | Making an impact on the ground key achievements in 2002 - Somerset area |
99 | An investigation into the bathing water quality at Porthallow |
100 | An investigation of the water quality in three Plymouth catchment streams |