126 | St Austell River and south Cornwall coastal streams catchment river water quality classification 1990 |
127 | Macroinvertebrates in the Kennet catchment : Part 1 - water quality monitoring |
128 | Continuous estimation of river flows |
129 | River Cober : catchment action plan |
130 | Mersey sub-catchment report : February 1996 |
131 | Impact assessment of acidic and metalliferous pollution in the Fowley Stream |
132 | Attenuation of nitrate in the sub-surface environment |
133 | River Sid : catchment action plan |
134 | The Hull catchment (river factfiles) |