PHOENIX (AP) -- The state of Arizona will finish adding a chemical stabilizer to a farm that's caused several dust storms that shut down Interstate 10.
The Arizona Department of Environmental Quality says it'll likely complete layering one half of the farm -- that's 320 acres -- on Saturday.
The department is spending about $200,000 on the treatment.
Officials have shut the highway down at least seven times in the past few weeks as dust storms have created low visibility on I-10 near the New Mexico border.
Spokeswoman Caroline Oppleman said the landowner will take over applying the stabilizer to the other half of the farm on Sunday.
The department said last week that it would likely seek fines against the landowner because he didn't act fast enough in controlling the situation.