54 LAWS OF MARYLAND [CH. 17

and if the amount of estimated receipts from such benefit assess-
ments and special ad valorem taxes, together with other revenues
available for the payment of such interest and principal, shall
be insufficient to pay such interest and principal, the County
Commissioners shall levy or cause to be levied ad valorem taxes
upon all the assessable property within the corporate limits of
Anne Arundel County in rate and amount sufficient to provide
for such payments. In the event the proceeds from the benefit
assessments, special ad valorem taxes and ad valorem taxes upon
all the assessable property within Anne Arundel County levied
in any fiscal year, together with other revenues available for the
payment of the interest and principal of such bonds, prove in-
adequate for the above purpose, additional taxes shall be levied
in the succeeding fiscal year to make up any such deficiency. The
County Commissioners may apply to the payment of principal
and interest of any bonds issued hereunder any funds received by
the County from the State of Maryland, the United States of
America, any agency or instrumentality thereof, or from any other
source, if such funds are granted for the purpose of assisting the
County in construction of storm water or surface water drainage
systems and to the extent of any such funds received or receivable
in any fiscal year the taxes hereby required to be levied may be
reduced proportionately.

6A-10. For the purpose of providing for the payment of prin-
cipal and the interest on the bonds issued by the County Commis-
sioners under the terms and conditions of this Chapter for the
construction of storm water or surface water drainage systems,
there shall be levied by the County Commissioners a special as-
sessment to be known as a drainage system assessment against
all of the properties within said drainage area served by said
system, whether immediately or remotely, which the County Com-
missioners may determine to be specially benefited by said system,
based on the area or on the assessed value of all of the property
belonging to any owner within said drainage area and so bene-
fited, which special assessment shall be uniform throughout the
area affected. The special assessment aforesaid shall be made
on either an area basis or on an assessed valuation basis which-
ever is deemed more equitable and just by the County Commis-
sioners and such selection as made by the County Commissioners
shall be final and conclusive. Such special assessments shall be
levied annually in such amount as the County Commissioners shall
determine to be equitable and just to the end that the drainage
system assessments together with the special ad valorem taxes
to be levied pursuant to Section 6A-11 of this Chapter shall be
the primary source for the payment of the principal of and in-
terest on the bonds authorized to be issued by this Chapter. Be-
fore the special assessment as provided by this section of this
Chapter is levied, the County Commissioners shall mail to the
owners of all properties within said drainage area or part thereof
upon which it is proposed to levy a special assessment, at the
address of such owner as appears from the tax records of Anne
Arundel County, notice that such special assessment is to be levied
and giving said property owners an opportunity to be heard thereon
at a time and place fixed in said notice. At such hearing, the County
Commissioners may adjust such special assessment, maintaining