New positions

* Maryland Department of the Environment appointed Robin D. Grove deputy director, waste management administration.

* Mather & Strohl Administrative Services has chosen Donna Barnham Welsh as vice president. She will oversee the firm's pension division.

* Associated Administrators named Laura L. Brookhart vice president of operations and Craig M. Barnes director of finance.

* Columbus Center Development appointed Paula A. Dozier a media relations specialist.

* MICROS Systems announced the appointments of Gary C. Kaufman as vice president and chief financial officer, Carroll H. Johnson to the board and Donny N. Anderson vice president, dealer sales.

* Black & Decker Corp., the Towson-based international tool and home products manufacturer, has chosen Chris De Bleser vice president, marketing for consumer products.

* The White House Inc., the women's clothing chain based in Linthicum, named Sylvia Seidler an assistant buyer.

Advertising and PR

* Marketing Solutions Unlimited announced that Gretchen Rankin has joined its staff as a graphics designer/production artist.

* AC&R; Advertising, an independent operating member of Saatchi & Saatchi PLC, named Eva Tashiro an assistant media director and Dow Holley media planner.

Financial services

* York Federal Savings & Loan Association appointed Robert H. Boyer senior vice president, mortgage origination.

* Chase Manhattan Bank of Maryland named Charles B. Sillery Jr. senior manager of operations system and distributions executive.

Legal and insurance

* Weinberg & Green added Dana N. Pescosolido, Joseph McM. Fairbanks and Catherine B. Mabry to its litigation and corporate practice section.

Professional

* C. W. Jackson Construction & Development named Karen Alker as business development coordinator.

* Kann & Associates, architects, named Cassandra Gottlieb an associate principal.

Health care

* Total Health Care announced the selection of Lawrence Peaco as its chief operating officer.

* Union Memorial Hospital named Dr. Victoria L. Thornton medical director and head of emergency medicine.