It is unlawful for the owner of a building on which any part of the eave thereof is situated within 75 feet of a storm sewer to permit water from the roof of such building to drain onto a street or alley adjacent thereto; and it is also unlawful for any such owner to fail to collect all of such water in eave troughs, or other conductors, and discharge the same by pipe into a storm sewer. Provided, however, that all such connections shall be made at the expense of the owner of such building and with the approval of the City Engineering Department.
('69 Code, § 3.06, Subd. 11) Penalty, see § 10.99