1 | An investigation into the bacteriological levels in the River Seaton |
2 | Bacterial quality of the bathing waters at Seaton, Cornwall, and of the River Seaton |
3 | An investigation of sewage on the beach at Porthcothan |
4 | A macroinvertebrate survey of the Releath stream and associated tributaries within the vicinity of Trevethan Farm : final draft report - Water Quality section, Cornwall area |
5 | Investigation of the effects of sewage treatment works discharges on receiving waters in the Lowermoor Water Treatment Works supply area November 1989 |