これさえ読めば安心! How to Treat a Well with Coliform Bacteriaの対策を順番に解説します。

First thing: confirm you’re not dealing with a false alarm. I sent a sample to a certified lab (cost me about $30 and a morning of my life). If the test comes back positive for total coliform—but negative for E. coli—you’ve got a fixable problem. If it’s positive for E. coli? That’s a boil water situation until you treat it. Pro tip: test your water after a heavy rainstorm, because that’s when runoff sneaks in like a thief in the night.