UPDATE: Hathaway Fire Cost to Date Estimated $9.3 Million, 73 Percent Contained

Update 7:45 p.m. The 3,800-acre Hathaway Fire in mountains northeast of Banning was estimated to be 73 percent contained as of 7 p.m. Monday June 17, according to updates from incident commanders in Beaumont.

There was no increase in the burned area's size, which remained at 3,807 acres. There were 749 personnel assigned to the fire Monday evening.

Earlier in the day, Forest Service spokesman Bob Poole told Banning-Beaumont Patch the total estimated cost to date for fighting the Hathaway Fire since June 9, including firefighters, aircraft, retardant, fuel, logistics, support, and incident command, was $9,312,000.

Posted 12:45 p.m. The Hathaway Fire in mountains northeast of Banning was calculated at 3,807 acres and 67 percent contained as of Monday morning, and estimated costs of fighting the blaze had grown to more than $9 million, according to updates from incident commanders in Beaumont.

There was no increase in estimated acreage over the course of 24 hours since Sunday morning, Forest Service and other agency officials said.

The total estimated cost to date for fighting the Hathaway Fire since June 9, including firefighters, aircraft, retardant, fuel, logistics, support, and incident command as of noon Monday was $9,312,000, Forest Service spokesman Bob Poole said in a phone interview.

"The word estimate is in capital letters," Poole said, speaking from incident command at Noble Creek Park. "These numbers are in the ballpark. I suspect once it is all said and done, I'm sure it will be substantially different. Calculating this on a daily basis is virtually impossible. This is a rough, rough estimate."

There were 967 personnel, 12 helicopters and nine tanker planes assigned to the fire as of 8 a.m. June 17, according to incident commanders.

"Firefighters will continue to build fireline as we move towards full containment of the fire," incident commanders at Noble Creek Park said. "The night flying Air Attack aircraft was able to map the remaining hot spots within the fire perimeter, which firefighters will focus on today. The Hathaway Fire is the first use of this technology on the San Bernardino National Forest.

In the San Gorgonio Wilderness, crews are using "Minimal Impact Suppression Tactics" to manage the fire with the least impact to natural and cultural resources, according to incident commanders.

The Hathaway Fire was reported just before noon Sunday June 9 on the north edge of the Morongo Indian Reservation and burned north into the mountains. The cause of the fire was said to be under investigation.

A target date for full containment of the Hathaway Fire has been set for June 25, but incident commander Don Garwood released a letter addressed to the public on Thursday stating "There is no way of knowing exactly when we will finish our work."

To read previous Banning-Beaumont Patch coverage of the Hathaway Fire click the following links:

Hathaway Fire NE of Banning Remains at 3,807 Acres, Now 63 Percent Contained

UPDATE: Hathaway Fire NE of Banning Now Estimated 3,816 Acres, 52 Percent Contained

UPDATE: Hathaway Fire Burns Fuel Near Whitewater River, Now Estimated 3,596 Acres

Hathaway Fire Camp Prompts Venue Change for 4th Annual Ho'olaule'a to Beaumont Sports Park

UPDATE: Hathaway Fire NE of Banning Estimated 3,520 Acres, 43 Percent Contained

PHOTO GALLERY: Hathaway Fire Helicopter Pilots Take on Retardant, H20 at Sundown

UPDATE: Hathaway Fire NE of Banning Grows to 3,130 Acres, Estimated 40 Percent Contained

UPDATE: Fire NE of Banning Grows to 2,372 Acres, Estimate 30 Percent Contained

UPDATE: Mountain Blaze NE of Banning Estimated 1650 Acres, 25 Pct Contained

Beaumont's 'Movies Under the Stars' Canceled Due to Hathaway Fire Near Banning

UPDATE: Fire NE of Banning Grows to 1,500 Acres, Concern for 'Significant Growth Potential'

Banning Woman with Family on Morongo Reservation: 'My Rez is on Fire'

Fire NE of Banning Grows to 1,300 Acres, Smoke and Aircraft Visible in Redlands

Agencies on the fire include the U.S. Forest Service, Cal-Fire Riverside County, California Department of Corrections and Rehabilitation, the Morongo Band of Mission Indians, and Morongo Tribal Bureau of Indian Affairs. Fire camp remained at Noble Creek Park in Beaumont.