* The Johns Hopkins University announced that Steve H. Hanke, a professor of applied economics, has accepted the sub-Cabinet post of state councilor on monetary and financial issues for Lithuania.

* Chesapeake Ranch Water Co. has placed its Plant No. 4 on line to serve the Chesapeake Ranch Estates in Lusby, Calvert County.

Trade Organizations

* National Stone Association elected Bernard L. Grove, president of Genstar Stone Products of Hunt Valley, chairman.

* American Association of Occupational Health Nurses announced that Jane Johnson joined its staff as senior specialist, professional affairs.

New Accounts & Contracts

* The Bomstein Agency of Washington has received contracts for advertising and services from the National Safety Council, Capital Management and Development, and radio station WVAO-FM/AM.

On the Board

* Columbus Center announced the following newly seated members of the board: Jean S. Fugett, Wensley Haydon-Baillie, R. Christopher Hoehn-Saric, Edward J. Ludwig, James A. Purdue and Dr. J. Craig Venter.

* Western Maryland College appointed Richard Klitzberg, Diane Rehm and Ferenc Somogyi to its board of trustees.