With a few exceptions, most of the pressing needs in Keller school district facilities detailed in the recent comprehensive review by the SHW Group involve aging mechanical, plumbing and electrical systems.KISD maintenance crews are beginning to work their way through a few of the more manageable projects listed in the assessment but many of them will need to wait for available funds, said Hudson Huff, director of construction and planning.The bulk of approximately $36 million in upgrades and repairs SHW recommends in the next year are to replace HVAC-related equipment between 15 and 30 years old.“Some of it is just going to be a function of the amount of growth that has taken place and the period of time,” Huff said. “A lot of campuses opened in the mid to late ‘90s and those systems are aging out.”For items that should be addressed in the next year, several campuses stood out.Fossil Ridge High School has current needs estimated at $5.7 million. While most of that would go to replace mechanical systems dating back to the 1995 opening of the campus, some is needed to address water damage issues.The report noted a roof drain leak and water damage in the adjacent ceiling, standing water in exterior vents and grates, leaks around a large window wall in the library and drainage, plumbing, and water damage issues in the field house.Keller High School also had a hefty amount of current needs at $5.2 million.“Keller High has had so many additions that the average age of the overall facility looks pretty good, but the core of the building has high needs,” Huff said.The oldest part of the school opened in 1984 with significant additions in 1997, 2003 and 2006. According to the SHW report, Keller High needs about $261,000 to keep up with technology demands and could use thousands of dollars in electrical and plumbing upgrades in the oldest part of the building. Improvements to older bathrooms also made the list.Again, however, most of the money would go to replace mechanical systems dating back to 1984 and 1997.Some issues at the high school are more difficult to address. The size of original classrooms and hallways are smaller than current standards from the Texas Education Agency.The report looked at the cost of replacing a school compared to the amount needed in repairs or upgrades. If a school was below 5 percent of the cost of replacement value for fixes it was graded as “good.” Schools at 5 to 10 percent earned a “serviceable” grade. Beyond 10 percent put them in “repair/replace” condition.For $102 million, the district could address all the needs. To get all campuses back into an acceptable range, according to SHW officials, would cost $68 million.While Fossil Ridge had the highest amount of current needs at 9 percent to Keller’s 8 percent, Keller High surpassed it looking at one to five years from now with nearly 30 percent in repairs or replacements needed compared to 13.5 percent at Ridge.Other campuses that need attention, according to the report, in the next five years are Parkview, Willis Lane, Whitley Road, Florence, North Riverside and Keller-Harvel elementary schools, along with Bear Creek Intermediate School.In the next few months, district officials will look at a possible bond election. In the past, mechanical system upgrades have been handled with long-term funding, but Keller has not had a bond since 2008.