Officials are urging Greenwich residents to conserve water or face restrictions as a shortage looms.

Both the town and Aquarion Water Company warn that the Rockwood Lake Reservoir is 15 feet below normal. That water could run out in just a few days, according to Aquarion.

In addition to Rockwood, Greenwich's two other reservoirs are currently at 27 percent capacity. The water company says the level should be 75 percent.

Aquarion manager David Medd blames the low levels on a lack of adequate rainfall. He urges residents to fix any leaking pipes or faucets, make sure dishwashers and washing machines are full before use and to take short showers.

Medd says the average four-person household uses about 200 gallons of water daily.

The last time Greenwich faced a water crisis was in the 1980s.