By Ray Sanchez, Isabel Rosales, CNN (CNN) — Milagros Pica Quiñones’ small concrete home is an untamed menagerie of bottles, paint buckets, bleach and laundry detergent jugs. The 96-year-old grandmother in the impoverished oceanfront town of Loiza, in Puerto Rico’s northeast, sees “the thinnest thread of water” trickling from her faucet most days before service is shut off from 10 p.m. until dawn. “I drag the buckets away with whatever strength I…