Since December, Waste Management and the California Department of Toxic Substances Control (DTSC) did not know whether PCB air monitoring would resume at a toxic landfill outside of Kettleman City.

(Read about the controversy over PCB air monitoring here.)

But during an interview with Jeffrey Callison Friday's Insight, Waste Management's Brian Bowen said, "As of last week, we resumed that sampling. So we resumed testing for PCBs."

After originally allowing the testing to stop, DTSC says they asked Waste Management to resume that testing. In a statement issued to Capital Public Radio, DTSC stressed the need to give the Kettleman City community peace of mind.

"We realize that there is a lot of sensitivity concerning this facility, including any emissions of PCBs…We want to give the community the extra reassurance that we taking all reasonable steps to ensure that there is no impact to the surrounding community from this facility.  As we explained to you previously, we have constantly monitored this facility for chemicals for years and have not found PCBs above ambient levels," the statement reads.

UPDATE: DTSC has shared with Capital Public Radio a letter indicating the agency asked Waste Management to resume testing last month.

Capital Public Radio was not told about the restarting of the testing during several interviews with DTSC and Waste Management. It's unclear why officials at DTSC and Waste Management did not know testing would resume.