(Greenville, OH)--Greenville leaders are looking into how to pay for mandated lead water line replacement that comes with a massive price tag.  Greenville has about 2000 lead water lines that need to be replaced.  The federal government has given the city 11 years to get that done.  This week, a consultant hired to examine the issue said that the total cost will run somewhere between $23 and $41 million.  If the city covers the cost through a loan, interest alone would cost more than a million dollars per year.  If the work is done through rate increases, that increase would be close to 20 percent.