A nursery in the mid-Atlantic region studied runoff water quality from their production area. They collected samples during storms and irrigation, testing for sediment, nitrogen, and phosphorus levels. The runoff had higher levels of these pollutants compared to background levels. The nursery used a model to simulate runoff behavior and found that sediment levels peaked after runoff, while nitrogen and phosphorus levels decreased. The model accurately characterized the runoff from the production area and could help assess water treatment options in the future.