As the combined Calf Canyon and Hermit's Peak fire gets closer to Las Vegas, people who live and work in the north-central New Mexico city are worrying about what could happen to their water supply. 

According to KOB 4, the fire is a few mountain ridges way, but is moving closer to the region's water treatment plant and reservoirs. Already the fire has hit one of the reservoirs. 

"There has been small spot fires within the reservoirs that are crawling fires, burning mostly ground fuel," Las Vegas Mayor Louie Trujillo told KOB 4. "There was a small portion that burned higher up in the Gallinas canyon that we're going to have to worry about and of course constantly we are worried that this fire will grow into those canyons that would cause to eventually have an emergency on our hands."

Trujillo added that officials always have been concerned about the possibility of fires affecting water sources because the reservoirs are in wooded areas that are especially susceptible to a fire's spread, KOB 4 reported. 

The station noted that officials didn't believe the fire was a direct threat to Las Vegas yet, but preparations and planning for alternate water supplies are under way should the fire threaten the area. 

Trujillo said the city has a three-day emergency supply of water should the treatment plant and reservoirs take a direct hit, KOB 4 reported.