1330 LAWS OF MARYLAND. [CH. 539

nection therewith, within such parts or portions of said Metro-
politan District as have been supplied with sewerage or water
systems under the provisions of this Act, whether upon private
premises or otherwise, shall be constructed by any person or
persons, firm, corporation, institution or community without
the written consent of and under rules prescribed by the Com-
missioners, and any violation of this Section shall be punish-
able in the same manner and subject to the same penalties as
provided under Section. 18 of this Act. The provisions of this
Section shall not apply to the properties, plants, franchises
and/or rights of the Mayor and City Council of Baltimore or
to any properties, plants, franchises and rights that may be
hereafter acquired by the Mayor and City Council of Balti-
more for the protection or enlargement of its water supply,
sewerage, storm-water drainage or refuse disposal systems or
any other of its utility properties.

SEC. 13. And be it further enacted, That all individuals,
firms and corporations lawfully having buildings, structures,
works, conduits, mains, pipes or other physical obstructions in,
over or under the public lanes, avenues, streets, alleys or high-
ways of the Metropolitan District, which shall block or impede
the progress of the Commissioners' water mains, sewers or
drains, when in process of construction and establishment,
shall, upon reasonable notice from said Commissioners, prompt-
ly so shift, adjust, accommodate or remove the same, as to
fully meet the exigencies occasioning such notice; pro-
vided, however, that the cost of such changes shall be
borne and paid for by the Commissioners out of the Metro-
politan District Funds. No water supply, sewerage or drain-
age system which may have been laid out, constructed or oper-
ated, before the passage of this Act, under the rules and regu-
lations and authority of the State Board of Health and the
Baltimore County Commissioners, shall be disturbed except
by consent of the owner thereof or by condemnation proceed-
ings as herein provided. The provisions of this Section shall
not apply to any property owned by the Anne Arundel County
Sanitary Commission, or its successors, or by the Anne Arun-
del County Commissioners, into which the water supply, sew-
erage or drainage systems established by the Commission-
ers shall extend. The provisions of this Section shall not
apply to the properties, plants, franchises and/or rights of the
Mayor and City Council of Baltimore or to any properties,
plants, franchises and rights that may be hereafter acquired