Solutions

Models

Waterborne staff have experience with internationally recognized environmental-fate models used by regulatory agencies in the U.S. (PRZM/EXAMS), Europe (FOCUS models), Canada (LEACHM), Latin America (Colombian Exposure Model Calculator) and Asia (PCPF). These models are used to predict chemical leaching, runoff, and spray drift; characterize exposure concentrations in receiving water; and evaluate the effectiveness of agricultural best management practices (BMPs) and other mitigation measures.

Our staff are knowledgeable about the underlying governing equations behind the models which provides us with a knowledge of model limitation, parameter sensitivity, and uncertainty. This allows us to not only recommend appropriate models, but also advance model technology to more accurately represent physicochemical processes.

We have performed modeling studies at the field scale, watershed scale, and national scale. For watershed-scale modeling, we typically use SWAT or link PRZM (and RICEWQ) with RIVWQ. These studies involve the use of GIS to spatially intersect soils, land use, and weather data. We’ve developed programs and databases to automate thousands of simulations for watershed, regional, and national analysis.

We are also experienced with other traditional hydrologic and water quality models including AgDRIFT, REMM, FSCBG, PELMO, PEARL, RZWQM, MACRO, LEACHM, GLEAMS, SWRRBWQ, SWMM, EFDC, MAM-PEC, REMA, WASP5, HEC-1, HEC-2, DAMBRK, and QUAL2E.

For more information on some of the models/tools that Waterborne helped to develop, see model development page or the specific model pages:

• PRZM
• RIVWQ
• RICEWQ
• Spatial Drift Model

For more information regarding our software development please contact us.