Cross-connections between the public water supply
and other systems or equipment containing water or other substances
of unknown or questionable quality are prohibited, except when and
where, as approved by the Director, suitable protective devices, such
as an approved physical connection installation as specified in New
Jersey Safe Drinking Water Act regulations, are installed, tested
and maintained to ensure proper operation on a continuing basis.
The Director may authorize installation of approved,
double-check valve assemblies with test cocks as protective devices
against backflow that present no significant health hazard in the
judgment of the Director. The Director shall require installation
of approved reduced-pressure-zone backflow preventer assemblies with
test cocks as protective devices against backflow that presents a
significant health hazard in the judgment of the Director.
No backflow preventer shall be put in use without
the prior approval of the State Department of Health.
[Amended 4-11-1989 by Ord. No. 1478]
Backflow preventers shall be subject to testing
for tightness under prevailing pressure conditions at least every
three months by the Plumbing Subcode Official, the Health Officer
and the Water Superintendent. An internal inspection shall be done
within six months prior to the application for permit renewal. After
reassembly, a test for tightness to assure the integrity of the device
shall be conducted.
Potable water connections to boilers shall be
made through an air gap or provided with an approved backflow preventer.
