Proceedings of the Workshop on Land Application of Effluent Water from Uranium Mines in the Alligator Rivers Region
Akber RA (ed)
Jabiru 11-13 September 1991, Supervising Scientist for the Alligator Rivers Region, AGPS, Canberra
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Contents
- Preface vii
- Opening Address 1
- RM Fry
Introduction
- Alligator Rivers Region 5
- Land application for disposal of excess water: An overview 14
- GH Riley
Soil Characteristics and Hydrology
- Soils and hydrology of the Ranger Uranium Mine land application site 25
- IR Willett, CJ Chartres and WJ Bond
- General monitoring of soils at Nabarlek and Ranger Uranium Mines 43
- SR Wigston
- Hydrology of Ranger land application area 70
- CV McQuade
- Movement of water and major ions in the Jabiru land application experiment 79
- WJ Bond and IR Willett
Fate of Solutes
- Land application at Ranger Uranium Mine, northern Australia: six years' review
107
- BN Noller and JX Zhou
- Adsorption properties of the soils of the Ranger Uranium Mine land application area for solutes in water from Retention Pond 2 113
- IR Willett and WJ Bond
- Fate of radionuclides applied to soil in Ranger Uranium Mine land application area 139
- RA Akber and R Marten
- Fate of solutes applied to land application areas 166
- TP McBride
Radiological Impact
- Critical Groups - basic concepts 181
- MW Carter
- An Aboriginal perspective on future land use of the land application site of Ranger Uranium Mine
187
- FRJ Robotharn and D McLaughlin
- Pathway analysis concepts for radiological impact assessment 192
- JR Moroney
- Preliminary assessment of radiological conditions at the Ranger land application area 226
- J Kvasnicka and J Bywater
- Radiological impact of radiolnuclide uptake by plants in the land application area 241
- RA Akber and R Marten
- External gamma dose rate survey of the Ranger Uranium Mine land application plot 252
- R Marten
- Suspension of dust in the vicinity of Ranger Uranium Mine: An estimate for the land application area 267
- RA Akber
Ecological Impact
- Effects on native plants of the land application of excess mine water 289
- N Ashwath
- Description of research into irrigation affected vegetation at Nabarlek 299
- N Green, D Eamus and G Duff
- Ecological effects occurring outside the land application sites 316
- TP McBride
Regulatory Aspects
- Regulation and monitoring of land application 329
- RA McGill
- Introduction to the first workshop session on regulatory needs 338
- MW Carter
Workshop Sessions
- Implications for regulations MW Carter (Chair) 343
- Future information needs A Johnston (Chair) 349
- List of registered participants 355
Preface
The Workshop on Land Application of Effluent Water from Uranium Mines in the Alligator Rivers Region was held in Jabiru from 11-13 September 1991. It was organised by the Supervising Scientist for the Alligator Rivers Region.
The objectives of the Workshop were:
- to review our current knowledge of land application as a technique for the disposal of water from mine sites,
- to assess the implications for regulation of the use of land application in the Region, and
- to specify future information requirements on land application.
The Workshop was attended by forty registered participants, representing different organisations with direct interest in the land application of mine waters in the Alligator Rivers Region. Twenty-one papers were presented. These covered a broad range of topics in various disciplines including the historical perspective, soil characteristics, hydrology, fate of solutes, ecological and radiological impact, an Aboriginal perspective on future land use and mine regulation. An overall reading of these proceedings is, therefore, likely to provide its reader with a comprehensive view of land application as a practice for disposal of effluent water by the uranium mining companies in the Alligator Rivers Region. At the same time, the individual contributions also provide independent readings of specific topics. This has been achieved at the expense of tolerating some repetition, particularly in the introductory sections of the papers.
The paper sessions were followed by two workshop sessions on the implications for regulation and future information needs. The delegates broke into groups of 4-5 people and considered a series of questions related to these topics. A spokesperson for each group then presented the group's findings on each question. A summary of these sessions, which is also included in the proceedings, is based upon the information obtained through these presentations.
Many people contributed to the success of the Workshop and completion of these proceedings. I personally acknowledge their contributions.
Riaz Akber

