1736 LAWS OF MARYLAND. [CH. 991

in which the systems are purchased or acquired. The said
Commission for the purpose of assessing benefits shall divide
all properties 'binding upon a street, road, lane, alley or
right-of-way, in which a water pipe or sanitary sewer is to be
laid, into four classes, namely: Agricultural, small acreage,
industrial or business, and sub-division property, and the Com-
mission may subdivide each of said classes in such manner as
it may deem to be in the public interest. Whenever any water
supply or sewerage project in said district or districts shall
have been completed by March 31, in any one year, regardless
of when said construction was commenced, then the said Com-
mission shall fix and levy a benefit charge as of the first day
of January in which the project was completed upon all prop-
erty in said sub-district abutting upon said water main or
sewer, in accordance with the classification or subdivision
thereof, and shall in writing, notify all owners of said prop-
erties into which class and subdivision their respective prop-
erties fall and the charge determined upon, naming also in
said notice a time and place, when and at which time said
owner 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 case of* a vacant or un-
improved property posted upon the premises. The classifica-
tion of and the benefit assessed against any property as made
by the Commission shall be final, subject only to revision at
said hearing. The Commission may change the classification
of property from time to time as said properties change in the
uses to which they are put. Said benefits shall be levied for
both water supply and sewerage construction and shall be
based for each class of property upon the number of front feet
abutting upon the street, lane, road, alley or right-of-way in
which the water pipes or sewer is placed; provided, however,
that in the case of any irregular shaped lot abutting upon a
road, street, lane, alley or right-of-way in which there is or is
being constructed a water main or sewer at any point, said lot
shall be assessed for such frontage as the Commission may
determine to be reasonable and fair; and provided further,
that no lot in a subdivision property shall be assessed 011 more
than one side, unless said lot abuts upon two parallel streets,
that corner lots may be averaged and assessed upon such
frontage as the Commission may deem reasonable and fair,
and that all lots in this class shall be assessed even though a
water main or sewer may not extend along the full length of
. any boundary; and provided further, that no land so classified
as agricultural by this Commission shall be assessed a front
foot benefit when said agricultural land has constructed
through it or in front of it a sewer or water main, until such
time as the water or sewer connection is made, and when so
made and for every connection such land shall become liable