KINGMAN — The Mohave County Planning and Zoning Commission on Wednesday approved changing hazardous materials requirements set for a Kingman gas company.
The commission approved the change sought by Praxair Distribution Inc. for the Griffith Industrial area off Interstate 40. The property is zoned heavy manufacturing. Praxair received a permit in 1989 to allow storage of flammable gases and liquids.
A condition on the permit set the maximum amount of arsine and phosphine gases stored at the site at the limits set for a California research facility. Praxair is seeking to comply with federal and state regulations instead of the requirement not to exceed the California research facility’s limits.
Kathy Tackett-Hicks, speaking on behalf of Praxair, said the 1989 condition is outdated, inappropriate and onerous to a new business product at the plant. Since the terrorist attacks of Sept. 11, 2001, additional federal regulations have been implemented on businesses, she said. The company also works with the county’s emergency management department.
The plant has been inspected by the Department of Homeland Security, the federal Environmental Protection Agency and the Arizona Department of Environmental Quality. The plant also has 180 air sensors to protect its 54 employees, and room to expand by up to 100 employees, Tackett-Hicks said.
Arsine is a colorless, flammable toxic gas commonly used in the semiconductor and metal refining industries. Phosphine is also a colorless gas used in the semiconductor industry.
In other action, the commissioners approved a special permit for an accessory residence greater than 50 percent of the primary residence for a Mohave Valley lot zoned agricultural residential. The 1.12-acre property is east of Highway 95 and north of Laguna Road. The proposed accessory residence is about 1,620 square feet while the current residence is 1,144 square feet.
The planning and zoning issues will go before the county supervisors for approval at their Oct. 2 meeting.