EMERSON C. HARRINGTON, GOVERNOR, 259

and Sinking Fund" from the whole amount necessary to be
raised in any one year for interest and sinking fund on out-
standing bonds, and the balance remaining to be raised shall
be the amount to be certified to the County Commissioners of
Montgomery and Prince George's Counties for collection by
taxation, as provided under Section 6.

SEC. 13. And be it further enacted, That for the purpose
of providing funds for maintaining, repairing and operating its
water supply, sewerage and drainage systems, including over-
head expense and proper depreciation allowance, together with
funds for making such payments as may be made to the Com-
missioners of the District of Columbia as hereinafter speci-
fied, said Commission shall be empowered and directed to
make such service rates as it may deem necessary chargeable
against all properties having a connection with any water
pipe under its ownership. Said rates shall be uniform through-
out the Sanitary District, but subject to change from time to
time, as necessary. The rates for service shall consist of a
minimum or ready-to-serve charge, which shall be based upon
the size of the meter on the water connection leading to the
property, and of a charge for water used, which shall be based
upon the amount of water passing the meter during the period
between the last two readings, said meter being required to be
placed on each water connection by, and at the sole expense of,
the Commission. Bills for the amount of the charges as above
specified shall be sent quarterly or semi-annually, as the Com-
mission may determine, to each property served, and shall be
thereupon payable at the office of the Commission; and if any
bill shall remain unpaid after 30 days from date of sending,
the Commission shall, after written notice, to be left upon the
premises or mailed to the last known address of the owner,
turn on the water from the property in question, and it shall
not be turned on again until said bill shall have been paid.
If any bill shall remain unpaid for 60 days after being sent
out by the Commission, it shall be collectible against the owner
of the property served, in the same manner as other debts are
collectible in the respective Counties.

SEC. 14. And be it further enacted, That said Commission
shall have full power and authority to enter into any contracts
or agreements with the Commissioners of the District of Co-
lumbia or any other Federal authority for the connection of
its water supply, sewerage and drainage systems with those of
the District of Columbia, for the purchase of water from the