Outdoor watering fell by more than 48%, accounting for a major share of the savings. The district’s reduction was more than three times the 9% cut reported by Denver Water customers, who had been asked to reduce their use by 20%. Many other Colorado water districts saw reductions of 10% to 20%.

District officials credited a public outreach campaign, enforcement that included fines and reduced lawn watering. Staff took conservation messages to community events and festivals, in part because many Vail-area residents are seasonal and may not be aware of restrictions.

The district’s position near the headwaters may also have helped make the drought’s effects visible to residents, said Deputy General Manager David Norris. He praised customers’ response while warning that conservation has not resolved the supply problem.

Restrictions will remain in place through winter as the district monitors snowpack and snow-water levels to assess whether reservoirs can refill in spring. Norris said cooler, wetter weather does not eliminate the risk to the district’s water supply.

Dillon Reservoir is about 30 feet below its typical level and could fall below 65% of capacity by spring, according to the district. The summer savings offer some relief, but officials say the coming snow season will be critical to determining how long drought measures are needed.