1.   And by the time it closed the wells, a week had passed since the spill, allowing for contaminants like Cryptosporidium to slip into the public water supply.

2.   But the well was closed anyway.

3.   Hamill said corrective steps include closing contaminated wells and drilling new ones.

4.   Several wells were closed until the mess was cleaned up.

5.   South Tahoe Public Utility District ordered wells closed as soon as MTBE was detected rather than waiting for the concentration to reach the federal health advisory level.

6.   After testing water in the aquifer, the planning department and EPA asked area residents to close their wells.

7.   Nurlan Kapparov told the Interfax news agency in Kazakstan that it would not be profitable to close wells, because reopening them would entail huge expenses.