The court determined that the non-participating insurer must reimburse the insurer who defended. Steadfast Ins. Co. v. Greenwich Ins. Co., 2019 Wisc. LEXIS 9 (Wis. Jan. 25, 2019).
Historic rains hit Milwaukee in June 2008, overwhelming the Milwaukee Metropolitan Sewage District's (MMSD) sewage system. Raw sewage backed up into 8,000 homes. Lawsuits were filed against MMSD and two companies who MMSD contracted with the operate and maintain the sewage system, Veolia Water Milwaukee and United Water Services Milwaukee.