Maryland Code, Public Utilities § 17-403

(i) limit or regulate the use and supply of water service and sanitary sewer service on a temporary basis in any area or to any premises served by the Commission's facilities, as the needs of the occasion and the protection of the Commission's systems require;

(ii) adopt regulations that the Commission considers necessary for the public safety, health, comfort, or convenience in the construction, operation, maintenance, expansion, relocation, replacement, renovation, and repair of the Commission's water system and sanitary sewer system; and

(iii) establish the forms of permits and specify the nature, type, and amount of information, detail, and engineering data that a person must submit to the Commission for any permit authorized or required by this division.