PRINCE GEORGE'S COUNTY. 4069

tion, transportation and final disposition of storm, surface or underground
water.

(f) Drainage District: All the territory forming the water shed of a
particular stream.

(g) Sewerage or Drainage Areas : Subdivision of sewerage or drainage
districts made necessary by topographic or economic conditions.

(h) Public Nuisance: Any matter, whether solid, liquid or gaseous,
which of itself is injurious to health or which may become so, on contact
with other substances, whether the latter may be in themselves harmful
or not, further, any matter which, though not demonstrably poisonous, is
offensive to the senses or which on being allowed to run into a stream will
render the water therein unfit for such purposes as it was used before pol-
lution. Also such disposition of any matter, that it may, while in condition
above described, approach within effective distance of any distance of any
dwelling or occupied land shall be held a public nuisance.

1914, ch. 793, sec. 529E.

916. Upon the passage of this Act, the said Commission shall cause to
be shown on a map of said Prince George's County the various drainage
districts therein, as shown by the topography in the different parts of said
county. It may thereupon determine which of the districts or parts thereof
is in most immediate need of sewerage or drainage facilities, and proceed
to have accurate surveys of said districts made and maps prepared, show-
ing the outlines thereof, and the various sewerage and drainage areas there-
in, together with such topographic detail as will be necessary for the proper
design of sewerage or drainage systems or parts thereof.

Upon these maps shall be projected a proposed plan of main sewerage
and drainage for each district and the various sewerage areas therein and
they shall constitute and be designated, on the approval of the State Board
of Health, to which duplicate copies shall be sent proposed main sewerage
and drainage plants for the several districts represented.

1914, ch. 793, sec. 529F.

917. When, after thorough investigation of the sanitary conditions in
any district or area, the said Commission is convinced that the public
health and welfare demand that all or a portion of the proposed main
sewerage or drainage plan for any district or area be constructed and
established, they shall pass a resolution to that effect and shall at once
have prepared the necessary detail plans, specifications and estimates.
When such plans and estimates are completed, the said Commission shall
immediately publish, once a week for three consecutive weeks, in all Coun-
ty newspapers published within or near such district or areas, notices of
said resolutions and the estimated cost of the improvement, together with
the fact that said Commission had decided that a vote be taken on a date
given, to determine whether bonds shall be issued for the construction and
establishment of all or a part of the main sewerage or drainage systems,
in the districts or areas under consideration.