1 | An investigation to determine if Great Torrington STW is the cause of elevated copper and zinc concentrations in the River Torridge |
2 | River quality in England and Wales : a report of the 1990 survey |
3 | Alternative Methods For The Biological Classification Of Rivers |
4 | Development of an Estuarine Classification Scheme for the Water Framework Directive |
5 | Regional river quality monitoring and surveillance : results of the 1990/1991 biological survey : draft report |
6 | An investigation to determine if Deep Moor Landfill Site is causing an impact downstream in the Peagham Stream |