More than 180,000 households in Puerto Rico are facing severe water rationing as a persistent drought leaves the island's reservoirs dangerously depleted.
leave + object + adjective= （目的語）を〜な状態のままにする
Under the new 48-hour water rationing schedule, residents across affected areas, including parts of San Juan, lose access to running tap water for two full days at a time. To cope with the shortages, families are relying heavily on municipal water tankers and home storage tanks to collect enough water for drinking, cooking, and cleaning.
at a time= 一度に、一回につき（連続した期間を表す）cope with= （困難な状況などに）対処する、切り抜ける
Dry conditions continue to affect the territory, leaving thousands of households carefully managing every drop of water while waiting for rainfall to restore reservoir levels.