Hereafter the Department of Public Works shall not do any sewer
or water pipe construction work or make any sewer or water pipe connections,
replacements, reconnections or repairs which are for the special advantage
of or required by private individuals, and chargeable to them, either
inside or outside the City, unless either:
A. The estimated cost thereof, as determined by the Director of Public
Works, has been paid in advance by such private party; or
B. A bond in such amount and with such sureties as may be approved by
the Director of Public Works has been given to secure the payment
of the work when completed.
The provisions of this part shall apply even though their effect
shall be to deprive parties of water supply or sewage service. However,
the provisions hereof shall not apply when, in the opinion of the
Director of Public Works, their enforcement will unreasonably delay
work or repairs, the prompt completion of which is necessary for the
safety or convenience of the public generally.