The Pella City Council approved changes to the Clark Street Substation Project at their meeting last week. The contractor discovered a few unforeseen hurdles in the construction. Some metal piping was discovered that needs to be removed from the site. They also need to move some connections to the other side of the Power Plant to ease construction during the deconstruction of the Power Plant. The change orders total $68,000, Nardini says that they usually budget %3-5 of the total project cost for unforeseen costs.