Blasting Schedule White Rock Quarry Permit No. 14900301 April 1, 2026 through April 1, 2027 Notice is hereby given that Glenn O. Hawbaker, Inc. of 1952 Waddle Road, State College, PA proposes to continue to conduct blasting in compliance with all State and federal laws at its' White Rock Quarry Operation, Permit No. 14900301. The quarry is located in Spring Township, Centre County on lands owned by Centre Lime and Stone company, Inc. The permit area is 288 acres and can be found on the Mingoville & Centre Hall PA 7.5 Minute Quadrangles near the intersection of State Route 26/64 and Gilltown Road next to the town of Pleasant Gap. Blasting will be conducted between the hours of sunrise to 8am, 8am to 12 noon, 12 noon to 4pm, and 4pm to sunset Monday through Saturday. Warning signs will be placed at every entrance to the quarry. Three warning signals, with duration of 5 seconds each will be sounded at least one minute but not more than 2 minutes prior to each blast. An all-clear signal of 10-second duration will be sounded after each detonation has been deemed safe by the blaster in charge. Prior to blast detonation access will be control to the immediate area. The above time schedule may vary on occasion, depending on emergency conditions and safety issues such as electrical storms, technical problems and/or equipment breakdown. IPL0324556 Mar 25 2026