930 LAWS OF MARYLAND. [CH. 494

owner of property may, at his option, within one year from
the time said front foot assessment or benefit charge is
levied, extinguish the same by the payment in cash
in one sum of the proportion of the estimated cost of the
project, of which the construction abutting upon his prop-
erty is a part, represented by the number of front feet
which he is assessed with interest at the rate of six per
cent per annum from the date of such levy, less any an-
nual payment that may have been made thereon. "The
Commissioners of Vienna, " in estimating the said cost for
the purpose of extinguishment, may add thereto a reason-
able margin to protect themselves against possible changes
in the cost of construction and loss of interest. All sums
received under such plan of extinguishment shall be pre-
served intact by "The Commissioners of Vienna" and ap-
plied toward the payment of the interest on said bonds and
toward the redemption of one bond in each and every year
beginning two years after date of said issue, as hereinbe-
fore provided; and provided further, that any property
owner whose property is classified under business or in-
dustrial, or sub-division, may, at his option, at any time
during the life of said assessment, extinguish the same by
payment in cash of an amount, which, if put at interest at
3 1/2 per cent, compounded annually, would yield an annuity
equal to the annual assessment for the period for which
said assessment has yet to run. "The Commissioners of
Vienna" shall at any time permit a connection with a water
main or sewer main by a property owner whose property
does not abut on said water or sewer mains and who has
not previously thereto paid an assessment for the con-
struction of said water or sewer mains, provided the said
"The Commissioners of Vienna" shall first determine the
classification of said property, and a front foot charge to
be paid by said property owner, as though his property
abutted on said water or sewer mains; and in the event of
such connection being made, said property owner and said
property, as to all charges, rates and assessment, shall in
every respect stand in the same position as if the said
property abutted upon said water or sewer mains. The
annual assessments as above specified shall be a first lien
upon the property against which they are assessed, sub-
ject only to prior State, County and Municipal charges, and
shall be enforced by a judgment upon complaint of the au-
thorities of Vienna before any justice of the peace or the
Circuit Court for Dorchester County, and usual execution
thereof. No such annual assessment shall continue as a
lien for a period longer than three years from the date