Sediment
The question it answers
Where the sediment in a river comes from, and how much each practice would keep on the land.
The study delivers
Sediment loads for each sub-basin and channel, checked against measured suspended sediment where a gauge has it.
Request a proposalNutrients and water quality
The question it answers
How much nitrogen and phosphorus each sub-basin delivers, and what each practice would cut.
The study delivers
Nitrogen and phosphorus loads for each sub-basin, checked against measured water-quality samples where they exist, and the reduction scenarios the plan asks for.
Request a proposalReservoirs
The question it answers
How a reservoir’s releases change the flow downstream, in wet years and dry.
The study delivers
Each reservoir with a release rule taken from operating data where the data exist, and the flow downstream under the scenarios you ask for.
Request a proposalWetlands
The question it answers
How much water the wetlands of a watershed hold back, and what restoring or losing them would change.
The study delivers
The wetlands with their functions and parameters checked and stated, and the change in flow under the scenarios you ask for.
Request a proposalWater temperature
The question it answers
How warm each stream runs, day by day, and how flow and weather change it.
The study delivers
Daily water temperature for every channel, checked against measured stream temperature.
Request a proposalCrops and management
The question it answers
How crops, fertilizer and tile drainage shape the water and nutrients leaving farmland.
The study delivers
Crops from the USDA Cropland Data Layer, nitrogen fertilizer and tile drainage in the model, and the practice scenarios you ask for.
Request a proposalPFAS
The question it answers
How long PFAS takes to reach groundwater, and how much arrives.
The study delivers
Arrival times and mass at the water table from your site’s data, by the method of our Journal of Contaminant Hydrology paper.
Request a proposalSalt and chloride
The question it answers
Where the chloride in a stream comes from, road salt included, and how much each source adds.
The study delivers
Chloride carried through the model from its sources, set against measured chloride where a station has it.
Request a proposalBacteria (E. coli)
The question it answers
Where the E. coli in a stream comes from, and which sources add the most.
The study delivers
E. coli carried from its sources through the streams, set against measured E. coli where samples exist.
Request a proposalClimate change
The question it answers
How a changing climate changes the flow of your river.
The study delivers
Your calibrated model run under an ensemble of climate models, and the change in flow it shows.
Request a proposal