MASON CITY | A local ethanol production company and its property insurer are suing two out-of-state corporations for their alleged role in a water tank collapse in Mason City in October 2015.

Golden Grain Energy, LLC and Lexington Insurance Co. allege that ICM Inc. and Glass King Manufacturing Co., Inc. were negligent in the events leading up to a 30,000-gallon tank's collapse on Oct. 21, 2015, according to a civil suit filed in federal court. 

The suit also claims ICM and Glass King were responsible for design defects in the the tank.

Golden Grain Energy, located in Mason City, produces about 115 million gallons of ethanol annually, according to its website.

ICM, based in Colwich, Kansas, produces wastewater tank systems, and Glass King Manufacturing, based in Great Bend, Kansas, produces parts for those systems, according to the lawsuit.

Daniel Kresowik, one of the attorneys representing Golden Grain, deferred comment to Ben Lesnick, the main attorney handling the case. Lesnick declined to comment when contacted by phone Wednesday.

Debbie Harding, a spokesman for ICM, also declined comment. No attorneys have been listed for either ICM or Glass King, according to court documents.

Golden Grain suffered damages worth $748,752.45, court documents said, a value the company expects to increase. 

The ethanol production company claims ICM and Glass King were negligent for "failing to design the tank in a careful, safe and proper manner" and "failing to comply with all applicable statutes, ordinances, regulations and industry standards," along with several other allegations. 

The tank, one of four at Golden Grain, was constructed and installed by ICM and Glass King in 2003, according to the suit. Before the collapse, ICM issued a "service bulletin" detailing three other times Glass King-manufactured tanks had failed, the lawsuit states.

It's unclear how much money Golden Grain and Lexington are seeking in the suit. That amount will be determined at trial, court documents say. 

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