Emily UR: A Rainy Day in the Field is better than a Sunny Day in the Office

The NOAA Hi-Def Radar app

As previously discussed, my IRP will be focusing on the concentration of nutrients in stormwater runoff into stormwater management ponds in two different environments. After reading some previously conducted research about atmospheric deposition and stormwater runoff I've decided to take a similar 'before and after' approach to measuring the concentrations of nutrients, before and after a rain event. First and foremost, I'm going to need additional information from those who lay down the fertilizers from each location. The Halifax Plantation homeowners association should have this information for their golf course care and I can personally ask the people who live in the surrounding houses how much, if any, fertilizers they use and and how often. For the Tuscawilla Park location, I will have to contact the City of Daytona Beach who care for all the landscaping of the park and ask about their fertilizer application, if any, and how often.
It's important to note that Tuscawilla Park was once a marsh wetland that was drained to become a public park. When speaking with the City of Daytona Beach, I plan to ask them how long ago the conversion from park to wetland occurred and for what reason, if any.
My scientific question is, "After a rain event, which retention pond is more heavily polluted by nutrients?" & "Is the pollution of nutrients due to stormwater runoff of atmospheric deposition?"
The quickest route between the two ponds takes approximately 30 minutes and is approximately 24.5 miles (google maps) so I'm not certain that I'll be able to collect rainwater from the same storm over the two areas on the same day as I would like to but regardless, my materials and methods are as follows:
Materials

• 4 2-Gallon Pails w/ handle from the Home Depot (Model #2GL WHITE PAIL)
• Hach DR/890 Colorimeter (Method 8048 for Phosphate & Method 10021 for Nitrogen)
• VWR Clinical 20 Centrifuge 
• Fisher Scientific MaximaDry filter pump
• 500ml Bottles for Water Samples
• NOAA Hi-Def Radar app for iPhone 
• NOAA HYSPLIT computer model

Methods 

1. Collect two samples of water from each pond before a storm. Each sample will be brought into the lab immediately for analysis.
2. Tracking a storm using the NOAA Hi-Def Radar app for iPhone, I will place two buckets around each pond during a storm to collect the rainwater associated with the later runoff. The water from each location will be properly stored and brought into the lab as soon as possible for analysis.
3. Once the storm has passed, I will take two samples from each location to compare the concentrations of nutrients from before to after the storm. 

An example of a NOAA HYSPLIT model

The methods extend far beyond "to the lab for analysis" but as far as testing for nitrogen is concerned, I am inexperienced. What's important is that the water collected will all be testing for total phosphate and total nitrogen present and my chemical spreadsheet can help me determine sources of pollution. Using NOAA's HYSPLIT (Hybrid Single Particle Lagrangian Integrated Trajectory), a computer model used to compute air parcel trajectories and dispersion or deposition of atmospheric pollutants,
I should be able to determine what kind of aerosols are present in the atmosphere during the rain event which will help to give a source of pollution for each location.