660 LAWS OF MARYLAND. [CH. 289
hereafter owned or controlled by the flavor and City Council

of Baltimore a sufficient supply of water, equal in purity to the
water served to the public in the City of Baltimore, for all
public, private, domestic, manufacturing or other needs for
which the system of water mains installed by said County
Commissioners were designed or intended to supply.

Section 2. And be it further enacted, That each and every
connection of the water mains installed by said County Com-

missioners with said water mains of the Mayor and City Coun-
cil of Baltimore shall be at the expense of said County Com-
missioners and under the supervision of the Water Engineer of
Baltimore City or such other person or persons as the Water
Engineer of Baltimore City, the Water Board of said city
may appoint or such other body or officials as may for the time
being have charge of the water system of said city, and said
County Commissioners to bear the expense of said supervision.
Every connection shall include a meter of a make and design
approved by the Water Engineer of said city, to the end that all
water flowing into each and every water system constructed
by said County Commissioners may be measured, and said
County Commissioners shall pay the said Mayor and City
Council the actual cost of delivering said water at the points
of connection and meter, with five per cent, added, and the
actual cost of purifying said water, with five per cent, added,
the cost of delivering and of purification to be determined by
the Public Service Commission of Maryland and to be subject
to review and revision by the said Public Service Commission
once only in every five years on application of the County Com-
missioners of Baltimore County or the Mayor and City Coun-
cil of Baltimore. In determining cost of delivering and of
purification, the value or cost of impounding water at any
source of supply and the value of cost of pipe lines and nitra-
tion plants shall be disregarded, it being the intention hereof
that the sales price of water by the Mayor and City Council
of Baltimore to the County Commissioners of Baltimore
County through the connections and meters aforesaid shall be
the cost of pumping the water to the points of connection and
meter, and the cost of purifying¹ such water, and in addition,
a sum equal to five per centum of said cost of pumping and
purification, without any allowance for interest on investment
or for amortization.

Section 3. And be it further enacted, That said County
Commissioners shall not lav any main as part of any water sys-