1 | Biological assessment of the effects of Ivybridge Sewage Treatment Works on the River Erme |
2 | Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon |
3 | Biological investigation into the impact of the storm overflow at Middle Marwood Sewage Treatment Works |
4 | Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991 |
5 | Quantification of the relationship between effluent quality and biological quality : final report |
6 | Monitoring the effects of a combined sewer overflow discharge to a small watercourse in South Wales |
7 | Quantification of the relationship between effluent quality and biological quality : interim report for stage 1 |