Quantification and Modeling of Perchlorate Impacts from Fireworks on Drinking Water Sources

We propose to evaluate the following hypotheses regarding the impact of fireworks on drinking water sources: 1) Fireworks will have a variable impact on surface water dependent on the mass of consumed fireworks, the dilution potential (rate and magnitude) of the water source, and the rate of biological perchlorate attenuation; 2) Impact will also depend on the magnitude of both direct deposition onto the water surface and the magnitude of subsequent inputs due to runoff or infiltration; 3) ClO4- concentrations in drinking water sources can be predicted based on fireworks consumption, hydraulic and ecological properties of the drinking water source, and hydrology of the region.