EVERY morning of every day, Khoiriyah fills up her buckets with the filthy water of the Surabaya River. The 48-year-old mother then puts some purifier into the buckets and lets the unsavory brew sit for quite a while before using it for cooking, bathing and washing.

Khoiriyah has noticed the quality of the water from her well getting worse over the last year. It is located only about 10 feet away from the Surabaya River. The residents of Sa