Lancaster School Superintendent Edward J. Myszka will retire at the end of the school year after 46 years as a teacher and administrator with the district, the last six as superintendent.

Myszka, 69, a Lancaster native and the first district alumnus to serve as superintendent, will retire effective June 30, saying in a statement posted on the district website that he looks forward to “new adventures and writing new pages in my life.”

District officials have not yet announced plans for the search for Myszka’s successor.

“I have always loved Lancaster schools and will continue to be a staunch supporter and fan,” Myszka said in his statement to the community.

The Lancaster High School graduate served the district as a business teacher at the high school, chairman of the business department and, for 27 years, assistant superintendent of business and support services.

Myszka has served as superintendent since July 2007, when he was named to replace Thomas J. Markle by a School Board that valued Myszka’s long history with – and detailed knowledge of – the district.

As superintendent, Myszka confronted the same central challenge as his peers in other area school districts: how to craft a budget that accounts for rising costs for employee health care and retirement benefits, flat-lining enrollment and declining state aid – without raising taxes to the point that voters would reject the spending plan.

Myszka announced his retirement at Monday night’s School Board meeting, after informing senior district staff of his plans that afternoon, said Patricia M. Burgio, the district’s communications director.

His decision came six months after the School Board granted him a new contract that replaced the final two years of his agreement, which was set to expire at the end of 2014, and extended the deal through June 2015.

Myszka was earning $170,000 per year as of last summer but was granted a raise under his new contract.

School Board members in the coming weeks will begin to decide how to proceed with the superintendent search.

“As we finish this school year,” Myszka wrote, “and there is still plenty to be done in the next few months, I would like to thank all who have blessed my professional life. It’s been a great journey.”