344                              LAWS OF MARYLAND                     [CH. 195

sion, an ad valorem tax at a rate necessary to produce annually the
sum required to pay such principal and interest for the current year,
which tax shall be levied and collected as other Commission ad valorem
taxes are levied and collected and paid to said Commission. Said
bonds and any notes issued in anticipation thereof for the purpose
stated in this Section shall be guaranteed as to both principal and
interest by the County Council of Montgomery County, and the
County Council of Montgomery County is hereby authorized and
directed to guarantee said bonds and notes substantially in the
manner and form provided for guarantee of the construction bonds
of said Sanitary District. Such guarantee shall operate as a pledge
of the full faith and credit of the County Council of Montgomery
County to the payment of the maturing principal of and interest
on said bonds and notes and, to the extent that the taxes above
provided for in this Section and any other moneys available or to
become available therefor (either through the issuance of bonds
or notes authorized hereunder or otherwise) are inadequate to pro-
vide the funds necessary to pay such principal and interest in any
year, said County Council shall levy upon all property subject to
taxation within Montgomery County ad valorem taxes in rate and
amount sufficient to make up any such deficiency.

Sec. 3. And be it further enacted, That the bonds authorized
by the Commission to be issued hereunder at any one time for
payment of the cost of storm water or surface drainage systems
or flood control projects and, SURFACE DRAINAGE OR FLOOD
CONTROL PROJECTS OR SYSTEMS, INCLUDING the cost of any
engineering or other surveys in connection therewith, in the portion
of the Washington Suburban Sanitary District in Prince George's
County shall constitute a separate series. For the payment of the
principal of and the interest on the bonds of such series, and for the
payment of the interest on any notes issued under the provisions of
Section 1 above in anticipation of the issuance of any bonds of such
series, the County Commissioners of Prince George's County shall
levy annually upon all of the property assessed for county tax purposes
within the portion of said Sanitary District in Prince George's
County, upon the certification of the Washington Suburban Sanitary
Commission, an ad valorem tax at a rate necessary to produce
annually the sum required to pay such principal and interest for
the current year, which tax shall be levied and collected as other
Commission ad valorem taxes are levied and collected and paid
to said Commission. Said bonds and any notes issued in anticipa-
tion thereof for the purposes stated in this Section shall be guaran-
teed as to both principal and interest by the County Commissioners
of Prince George's County, and the County Commissioners of Prince
George's County are hereby authorized and directed to guarantee
said bonds and notes substantially in the manner and form pro-
vided for guarantee of the construction bonds of said Sanitary Dis-
trict. Such guarantee shall operate as a pledge of the full faith
and credit of the County Commissioners of Prince George's County
to the payment of the maturing principal of and interest on said
bonds and notes and, to the extent that the taxes above provided
for in this Section and any other moneys available or to become
available therefor (either through the issuance of bonds or notes
authorized hereunder or otherwise) are inadequate to provide the
funds necessary to pay such principal and interest in any year, said