In October 2022, American Pipeline Solutions was hired by a New York City medical facility to address water quality issues. The facility had experienced water discoloration and taste problems in eleven locations on its upper floors due to stagnant water in pipelines during a year-long shutdown caused by the COVID-19 pandemic. Traditional flushing methods were ineffective, leading to the decision to use Ice Pigging™ technology. APS conducted a pre-project study and used Ice Pigging™ to clean the affected pipelines, ranging from 0.5" to 8" in diameter. Four 10-ton loads of ice slurry were used for the job. The process successfully removed biofilm, iron, and sediment buildup, reducing the risk of contamination and improving future maintenance efficiency.