The Sierra Club says Kansas environmental regulators are not enforcing an odor control provision in a permit for Seaboard Food Inc.’s hog feeding operation in Greeley County.

At issue is the way Seaboard calculates water levels in lagoons used to treat manure for odor control. Its Ladder Creek facility has a capacity for 132,000 mature hogs.

The environmental group on Tuesday criticized the Kansas Department of Health and Environment for finding after an investigation that Seaboard met requirements based on head counts. The complaint filed in August is the third one it has filed.

KDHE says its secretary determined it would be a poor use of scarce fresh water to maintain full pools when the facility was not operating at full capacity.