51 | Interim guidelines on the ranges of enteric organism decay rates (T90s) under different marine conditions |
52 | Discharge monitoring in the Kennet catchment. Part 1 : ecological effects of sewage and trade effluents |
53 | Discharge consents and compliance : the NRA's approach to control of discharges to water |
54 | Quantification of the relationship between effluent quality and biological quality : interim report for stage 1 |
55 | Water pollution incidents in England and Wales - 1992 : report of the National Rivers Authority |
56 | Water pollution incidents in England and Wales - 1993 : report of the National Rivers Authority |
57 | Monitoring of the River Burn upstream and downstream of Burnham Market sewage treatment works 1999 |
58 | Investigation into the frequency of storm overflow operation at Bradworthy sewage treatment works (1996) |
59 | River Avon, Bath : aesthetic study of riverbanks through the urban area of Bath : final report |
60 | Impact assessment of Helston Sewage Treatment Works on water quality of the River Cober Loe Pool |
61 | Visits to Cley-next-to-the-sea and Salthouse sea defences, King's Lynn sewage treatment works |
62 | Assessing the impact of sewage effluent disposal on groundwater (phase 2): final report |
63 | Investigation into the storm overflow discharge regime of Hill Barton Seawage Treatment Works Okehampton |
64 | An investigation to determine if Deep Moor Landfill Site is causing an impact downstream in the Peagham Stream |
65 | Light scattering in sewage effluent: a study of the effects of angle of scatter an common light sources |
66 | Environmental Impacts of Alkylphenol Ethoxylates and Carboxylates. Part 1 Proposals for the Development of Environmental Quality Standards |
67 | An investigation into possible causes of poor water quality at Nymphayes Bridge (R30D009) on the Gissage Lake |
68 | Investigation into failures of the River Dalch from Canns Mill Bridge to below Lapford sewage treatment works (2001) |
69 | Report on US study tour of engineered wetlands for the treatment of waste water and mine drainage, March 1992 |