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1The effect of the voluntary initiative on water quality
2Hydrometry : the science of measuring the water cycle
3A report on the investigation of the Taff litter problem
4A litter assessment of two major tributaries of the Taff, the Cynon and the Rhondda : surveyed March - April 1990
5Project record for the review and statistical analysis of the baseline coastal waters survey
6The quality of rivers, canals and estuaries in England and Wales : report of the 1990 survey
7Identification of Blue Green Algae of the British Isles Guide to the Genera and Use of the Interactive CD-ROM for Identification of Species
8A survey of ferruginous minewater impacts in the Welsh coalfields
9The 1990 river and estuary classification survey of England and Wales
10Results of the NRA Welsh regional marine bioaccumulation programme 1991-1995 : SE/EAU/95/9
11Results of the NRA Welsh regional marine bioaccumulation programme 1991-1993 : SE/EAU/94/8
12A survey of ferruginous minewater impacts in the Welsh coalfields
13The quality of rivers and canals in England and Wales (1990 to 1992) : as assessed by a new general quality assessment scheme : report of the National Rivers Authority
14The results of Tawe barrage post-impoundment salmon and sea trout telemetry study 1992
15Bathing water quality in England and Wales in 1993 : report of the National Rivers Authority
16Bathing water quality in England and Wales in 1995 : report of the National Rivers Authority
17Monitoring the effects of a combined sewer overflow discharge to a small watercourse in South Wales
18River corridor strategic overview feasibility study : a report to the National Rivers Authority
19Remote sensing and baseline monitoring of the coastal waters of England and Wales 1992-1993 : a survey report [external version]
20An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2001 : Environment Agency CEH Report Ref: COO 15 8/24