The Butler county Parks and Recreation Department will close the Alameda Waterpark for the season Aug. 25.The park, 183 Alameda Park Road, will be open from 12:15 p.m. to 7 p.m., weather permitting, Aug. 25.BHS Class of ’74 reunion slatedAug. 24 is the deadline to make reservations for the Sept. 14 Butler High School Class of 1974 reunion.The event starts at 6 p.m. in the upstairs party room of the Lyndora Hotel, 1 Main St. Lyndora.For more information, visit www.classcreator.com/Butler-Pennsylvania-Butler-Area-Senior-1974/.Pushing Limits series at libraryZELIENOPLE — The “Pushing the Limits” discussion series featuring books, video and special guest speakers will begin the 2019 session Aug. 24 at the Zelienople Area Public Library, 227. S. High St.The 4-part series is open to all adults and teens in the community and has been developed with funding from the National Science Foundation.The 2019 themes are Transformation, Tradition, Heritage and Motion. To participate, register at the library or on the library website www.zelienoplelibrary.org.Children’s fest, trunk sale plannedOak Hills Christian Church, 100 Township Line Road, will have a children’s festival and trunk sale from 9 a.m. to 1 p.m. Aug. 24.Children will have a blast while adults get to clean out unwanted items from their attic, basement or garage. There is a seller fee. Shoppers are admitted free.Proceeds will go toward restoring the fellowship hall. For more information, call Lisa Fusca-Barron 724-996-1188.Ritts reunion set for EmlentonEMLENTON — The 32nd annual reunion of the Al and Maggie Ritts family will begin at 1 p.m. Sunday at Hughes Park in Emlenton.