http://www.cdc.gov/mmwr/preview/mmwrhtml/00024866.htm

This report summarizes two cases (Tutu Well Field, St. Thomas, Virgin Islands, and Arden Hills, Minnesota) in which contaminated drinking water wells were being used even though health advisories had been issued to discontinue use of the wells.MMWR 43(05);89-91Publication date: 02/11/1994.