944 LAWS OF MARYLAND. [CH. 423

Commissioners of Vienna" are empowered and directed to
fix and levy an assessment upon all property abutting upon
said water main in accordance with the classification, and shall
in, writing notify all owners of said properties into which class
their respective properties fall and the assessment determined
upon, naming also in said notice a time and place when and
at which said owners will be heard. Such notice may be

mailed to the last known address of the owner, or served in
person upon any adult occupying the premises, or in the case
of vacant or unimproved property, posted upon the premises.
The classification of and assessment against any property as
made by "The Commissioners of Vienna" shall be final, sub-
ject only to revision at said hearing. "The Commissioners of
Vienna" may change the classification of properties from time
to, time, as said properties change in the uses to which they
are put. Said assessments shall be levied for both water
supply and construction and shall be based for each class of
property upon the number of front feet abutting upon the
street, lane, alley or right-of-way in which the water pipe is
placed; provided, however, that no lot in a sub-division prop-
erty shall be assessed on more than one side, that corner lots
in this class shall be assessed on that frontage towards which
the building shall naturally face, and that all lots in this class
shall be assessed for their full frontage even though a water
main may not extend along the full length of any boundary;
that in case of irregular shaped lots and shallow lots fronting
on more than one street in which a water main is placed, "The
Commissioners of Vienna" may assess such length of frontage
as they deem reasonable and fair; and provided; further, that
in the case of small acreage and agricultural property, where
a water main does not extend along the whole frontage, "The
Commissioners of Vienna" may assess such length of frontage
as they deem reasonable and fair. Front-foot assessments for

water supply and construction shall be uniform for each class
of property throughout the town. The amount of the assess-
ment per front foot for each class of property for water mains
shall be determined annually by "The Commissioners of Vi-
enna," as costs and conditions require. 'Said assessments shall
be paid annually beginning in the year such construction is
begun by all persons owning property located, as above speci-
fied, and the said annual assessment to continue for a period
of years co-extensive with the period of the latest maturity of
the said serial bonds, out of the proceeds of which such con-
struction was done; provided, however, that any owner of