Officials from the Indian Hill General Improvement District are awaiting the results of a second test before then can lift a boil-water order.
District Manager John Lufrano said the district should hear from the lab late this afternoon.
He said he will use the reverse 911 system to contact residents as well as posting the news on the district's web site at indianhillsnevada.com.
The order was issued after portions of the water system went dry on Wednesday morning after the computer that controls the pumps fried its central processing unit and failed to alert district employees to the problem.
It's standard procedure to issue a boil-water order after a water system runs dry in case contaminants are drawn back into the system through leaky portions.
Lufrano said the first testing came back clean on Thursday.