A one-time grant from Los Angeles County Supervisor Kathryn Barger will extend recreational and fitness programs at the Loma Alta Park pool in Altadena beyond the summer season. The extended season will run from Aug. 24 through Sept. 30 and will include recreational swimming, lap swimming, water exercise classes, swim lessons and other aquatic programs, according to Barger’s office. Free morning lap swimming for adults 65 and older and people wi…