Any item not covered in this article or the Technical Bulletin
for Building Sewer and Water Service shall be evaluated on a case
by case basis by the Engineer. The provisions of this article shall
apply to every water service pipe and building sewer installation
connected to County-owned systems, including alterations, repairs
and replacements.
The purpose is to preserve the health, sanitation, safety and
welfare by regulating installation and maintenance of plumbing in
its scope and to promote utilization of durable, standardized materials,
free from defects and sufficient to provide adequate service life.
Before any person, firm or corporation shall engage in the business
of installation, alteration or maintenance of any plumbing under the
scope of this article, he/she shall obtain a Master Plumber license
from the State of Delaware.
A backflow-prevention device shall be installed in the water
service pipe to every building served by a separate fire service.
The device shall be located within five feet of the exterior foundation
wall and shall be accessible for service. As a minimum requirement,
the backflow-prevention device shall consist of a manual shutoff valve
followed by a spring-loaded check valve and a pressure-relief valve
on the downstream side of the check valve. The pressure-relief valve
drain shall be piped full size with no valve or trap to a location
where emergency water spillage will create no problem.
Abandoned septic tanks and cesspools shall be made safe and
harmless in accordance with the regulations of the State of Delaware
Division of Environmental Control. The County defers all inspection
and enforcement action to the state.
Permanently abandoned wells shall be filled and sealed in accordance
with the regulations of the State of Delaware Division of Environmental
Control. The County defers all inspection and enforcement action to
the state.