1028                             LAWS OF MARYLAND                       [CH. 411

represented county shall be assessed at a rate calculated from a cost
sharing formula which is based on a projected ten-year average daily
withdrawal within the county during the month of maximum with-
drawal divided by the total projected ten-year average daily with-
drawal during the month of maximum withdrawal of all the
represented counties.

(b)    The Authority shall assess non-Maryland users who are sub-
ject to the appropriation requirements in Section 11 of Article 96A
based on a rate to be calculated by the same means as that used for
the assessment of represented counties. The Authority shall collect
the assessed charges from the non-Maryland users in a manner to be
prescribed by the Authority.

(c)    The Authority may enter into contracts or agreements with
the Commissioner of the District of Columbia relating to payments
by the District of Columbia to the Authority of the District's equit-
able share of the initial cost of the project. Such contracts shall
contain such provisions as may be agreed upon by the Authority and
the Commissioner, and may include provisions for the ascertainment
of the District's equitable share of the costs, the periodic revision of
the amount of that share, and other payments by the District of
Columbia with respect to the cost. Any contract or agreement so
entered into shall have the full force and effect of a contract between
the District of Columbia and the State of Maryland.

97.

Any permit for the appropriation of water from the Potomac River
issued by the Department to any non-Maryland user shall include a
provision for payment for such use based on the provisions of Section
96. The Department shall transfer the payment to the Authority,
which shall credit it to the assessment of that non-Maryland user
established under Section 96.

98.

The Authority may issue rules and regulations to carry out its
functions under this subtitle and shall be subject to the Maryland
Administrative Procedure Act.

99.

For the purpose of satisfying any assessment established under
Section 96, each represented county may impose through just and
reasonable rates determined after public hearing, assessments of
charges on users located within its county and/or may employ any
other means for assessment and collection authorized by law for the
collection of taxes or assessments, including the imposition of liens
upon real or personal property.

100.

The determination of assessments shall be made at the time the first
payment is due. The projections of water withdrawals in deter-
mining assessments shall begin with the most recent year for which
data are available. Thereafter, the Authority, in consultation with
the Department, shall recalculate assessments triennially based on a
revised ten-year projection of water withdrawals beginning with the
most recent year for which dat