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76The River Cam catchment management plan : annual monitoring report
77Conservation in the Severn-Trent Region (NRA Severn-Trent 57)
78Second Coniston OS map related to the Seismic Survey 1983
79Coniston OS map related to the Seismic Survey 1983
80Quality audit of biological samples for the 1990 river quality survey
81The quality of rivers in England and Wales (1990 to 1995)
82River water quality in the Midlands 1994/95 : water quality summary data
83Pesticides in the aquatic environment 1997 : executive summary
84A guide to sustainable urban drainage : protecting the quality of our environment
85Policy and practice for the protection of groundwater
86The Wandle, Beverley Brook, Hogsmill catchment management plan : action plan : July 1995
87The National Groundwater and Contaminated Land Centre (NGWCLC)
88Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report
89Snapshots of the environment : a new environmental approach
90Proposals for statutory water quality objectives : report of the National Rivers Authority
91Water resources development strategy : the Resplan Model. Supplementary report no. 7
92Report on monitoring of environmental quality in the Severn Estuary
93The NRA in business : annual review and summary accounts 1993-94
94River quality in England and Wales : a report of the 1990 survey
95Water quality 2000 : a strategy for the water quality function
96Improving the environment in Midlands region : Midlands local contribution 2006/11
97The River Dee catchment management plan : consultation report : June 1994
98Policy and practice for the protection of groundwater : draft for consultation
99Charging for discharges scheme : guidance to the agricultural industry
100Landfill and the water environment : NRA position statement