On Halloween night, shadows stretch long and the air chills to the bone. Ghosts may haunt the woods, but an even deadlier spirit lurks closer than you think: dirty water.

If you eat food (hi, that’s all of us), you’re already connected to farming. But here’s the thing most people don’t think about: farming lives or dies by water quality.

Without clean water, our health hangs in the balance. Waterborne diseases, stealthy and vicious, can wreak havoc on communities.