My project is underway!
I selected a local pond rather than using many different water sources as I originally planned. I realized that managing all of these water samples would overcomplicate the data I was attempting to collect. It would also be too difficult to travel to different sources due to the pandemic.
I collected a water sample from a nearby pond that collects drainage from the streets. The pond is stocked with fish so it should have plenty of micro-organisms to observe. There is also the potential for chemical runoff that will not be removed by the filters.
Here are some photos of the pond and of my equipment.