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Environmental impact assessments

Watersheds, lakes and reservoirs are widely affected by human interventions.

Urbanization, channelization of streams, construction of reservoirs, and intensified land uses, for example, will influence surface runoff intensities, as well as the quality of surface waters. Excessive nutrient inputs to aquatic ecosystems, often resulting in harmful algal blooms and oxygen depletion, is now a widespread global issue.

Understanding how land cover, agricultural management, point sources, etc. impact nutrient transports is therefore essential for water managers, so that decisions that reverse the trend of degrading water quality can be made effectively and based on data.

Our clients and partners typically include national and regional water managers that are responsible for a sustainable use and management of water resources and the research sector that continues to work towards a better understanding of how human interventions and nature-based solutions can influence water systems and their ecosystems.


At WaterITech, we have many years of expertise in the use of advanced hydrological and water quality models for assessing how land cover, agricultural management and climate impacts water quantity and quality.

We can design and simulate a wide range of land use change and best management practices (BMPs), which can be used as decision support in assisting water managers to make decisions that may result in improved water quality for future generations.

We can also simulate a range of lake or reservoir restoration options, and assess the efficacy of these restorations, before they are potentially implemented in the real world.



  • Design and simulation of land use change and BMP scenarios

  • Design and simulation of lake and reservoir restoration options

  • Quantification of critical nutrient load target (total maximum daily load, TMDL) to an individual lake or reservoir

  • Assessment of the combined effects of climate change and management interventions on water resources


  • Leading model experts with many years of experience

  • Impact assessments based highly advanced models and tailored to your area of interest

  • Application of open-source model solutions that you may share at your own discretion

  • Highly recognized, science-based and well-documented solutions

Want to know more?

Contact Dr. Dennis Trolle to learn more about how we may be able to assist you.

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Dennis Trolle, Ph.D.

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