We understand our environment as a complex network of single subsystems being protected best by sustainable handling of the central environmental protection goods water, air and soil. For the preservation of these protection goods, the emissions into and the impacts of the environmental media have to be analyzed and limited to standards being reasonable with respect to both, managerial and national economics.

In this context, differentiated databases, exact diagnoses and reliable projections of the transport and effects of relevant hazardous substances need to be drawn up at short notice and in accordance with the requirements of the specific case concerned.

We determine the amounts of hazardous material and their transports in air, water and soil as well as in the biosphere by model calculations and validate them by measurements if possible. With the analyses of the respective site specific exposure situation we are able to limit extensive and costly investigations to the really unavoidable measure. The results then lead to optimized solutions for the successive phases of planning, licensing and realization.

• Water Resources Management
• concepts for water extraction taking environmental aspects into account
• investigations of sustainable water supply for cities
• planning aids for sustainable land use
• investigations of impacts of planning and building projects on water and soil

• Security Measures for Water-Supply Catchments
• hydrogeological investigations in water resource development
• planning regarding water rights and water management for water extraction plants
• strategies to protect water-supply catchments of groundwater extraction plants and dams
• advice on agricultural land use taking a sustainable water use into account
• water management plans to control extraction
• monitoring and development of water information systems

• Decentralized Stormwater Management
• planning maps for “stormwater infiltration” for urban areas
• drainage concepts for potential building areas
• comprehensive planning concerning the use of stormwater on industrial and building areas

• Model-based analyses of pollutant transport in water and soil
• Surface and groundwater flow - even under complex geological conditions and in mining areas
• Dynamics and geochemistry of organic and inorganic pollutant transport in water and soil

• Model-based emission and impact analyses of air pollutants
• Dispersion meteorology
• Atmospheric dispersion of air polluntants - even in complex terrain
• Dry and wet deposition and resuspension
• Investigations on urban and regional climates
• Dynamics and chemistry of the atmosphere

• Monitoring of emissions and impacts

• Ecological analyses of exposure pathways

• Investigations and assessments of potentially polluted sites,including on-site examinations and sampling for water, air and soil

• Planing of concepts and licensing for
• Water treatment plants
• Chemical plants
• Landfills
• Intermediate and final repositories
• Thermal, biological and physico-chemical waste treatment plants

• Development and assessment of cost-optimal and sustainable remediation concepts

• Tendering and contract negociations

• Supervision and progress control of remediation work

• Development of utilization concepts for contaminated sites

• Legally binding expertises in compliance with
• Federal atomic energy act
• Federal water economy act
• Federal recycling and waste management act
• Federal mining act

• Performance of licensing procedures in compliance with
• Federal impact protection act
• Federal atomic energy act
• Federal water economy act
• Federal recycling and waste management act
• Federal mining act

• Risk and safety analyses incl. development of methodologies

• Incident and accident analyses

• Damage analyses

• Emergency preparedness planning

• Development of process engineering procedures

• Public relations

• Personnel training

• Project management

Analyses of Incidental Pollutant Releases in Complex Terrain
(German Federal Ministry of Research and Technology, Bonn/Berlin)

Development of a Remote Air Monitoring System for the Surveillance of Complex Navy Sites in France
(French Navy, Paris)

Taking CAIRE - An Advanced Emergency Guidance System for Nuclear Facilities
(Publication in: Nuclear Engineering International 39, No. 484, p. 43, 1994)

COMPAS - Development and Realization of an Emergency Management System for Unexpected Releases of Chemicals
(German Federal Ministry of Research and Technology, Bonn/Berlin)

Methods for Emission Determination of Diffuse Sources
(Publication in: VDI-Reports No. 1443, ISBN 3-18-091443-2, VDI-Publishing Company, Düsseldorf)

Evaluation of Mathematical Methods for the Near Source Dispersion of Air-Born Emissions

Projection of the Long-Term Hazard Releases from the Ronneburg Uranium Underground Mine based on Hydrological and Hydrochemical Model Calculations
(Legally binding expertise for the Regional Mines Inspectorate of Thuringia, Gera)

Assessment of the Flooding Concept of the Königstein Underground Mine in Saxony
(Legally binding expertise for the Federal German Ministry for the Environment, Nature Conservation and Reactor Safety, Bonn/Berlin)

Assessment of Pollutant Impacts on Soil and Water in the Vicinity of the Elbasan Metallurgical plant
(G. Deißmann, in Albania, for the German Association of Technical Cooperation)

Cost-Benefit Analyses as Basis for Decision-Making in Environmental Restoration
(Federal Ministry for the Environment, Nature Conservation and Reactor Safety, Bonn/Berlin)

Evaluation of an Integrated Assessment Method for Radiological and Non-Radiological Risks at Contaminated Sites
(Federal German Ministry for the Environment, Nature Conservation and Reactor Safety, Bonn/Berlin)

Geological-Geotechnical Expertise with Respect to the Consolidation and Dewatering Behavior of Red Mud
(R. Stollenwerk)

Development of a Water Vapor Extraction Plant for Organically Contaminated Soils
(Federal German Ministry of Research and Technology, Bonn/Berlin)

Technical and Environmental Assessment for the Construction and Operation of a Waste Water Processing Plant for the Underground Uranium Mine of Ronneburg
(Legally binding expertise for the Regional Mine Inspectorate of Thuringia, Gera)

Investigations on the Consequences of Anthropogenic and Geogenic Heavy Metal Impacts on Soils and Waters of the Aachen Forest
(G. Deißmann, Municipality of Aachen)

Investigations on the Influence of the Deposition of Heavy Metals and Acids on the Forest Ecosystems of the Northern Eifel and their Potential Long-Term Consequences for Ground and Surface Waters

Investigations on Heavy Metal Contaminated Potential Brown Fields in the Area of Aachen
(G. Deißmann, Municipality of Aachen)

Execution of a Geotechnical Suitability Test for the Geological Barrier of the Construction Phase II of the County Landfill of Werl
(R. Stollenwerk)

Suitability Tests on Cover Measures for Power Plant Ash Landfills
(R. Stollenwerk, Rheinbraun AG, Cologne)

Dipl.-Ing. M. Holli
Tel.: (+49) 2405-4651-15
Fax: (+49) 2405-4651-50
E-mail:m.holli@brenk.com

Dipl.-Phys. S. Kistinger
Tel.: (+49) 2405-4651-27
Fax: (+49) 2405-4651-50
E-mail:s.kistinger@brenk.com

Dipl.-Phys. G. Hoppe
Tel.: (+49) 2405-4651-22
Fax: (+49) 2405-4651-50
E-mail:g.hoppe@brenk.com