Chapter 27 UTILITIES*
Section 27-57 Cross connections.
(a) Cross-connections includeany physical connection between
a potable water supply and any
waste pipe, soil pipe, sewer, drain, or any unapproved source or system. Cross-connections
include any potable water supply outlet which is submerged or can be submerged in waste water
or any other source of contamination and any source or system that is, in the opinion of the
director, based on the standards of the Missouri Division of Health, nonpotable, and through
which backflow can occur to contaminate the department's system. Cross-connections include
bypass arrangements, jumper connections, removable sections, swivel or changeover devices,
and other temporary or permanent devices through which or because of which backflow can
occur. Cross-connections may be direct or indirect. A cross-connection is direct when the
department's water system is physically joined to a system containing unsafe water, sewage, or
other waste that could contaminate the safe water system. A cross-connection is indirect when a
source of contaminated water may be blown across, sucked, or diverted into the department's
(b) Unprotected cross-connections in the customer's water installation
are not permitted. If an
unprotected cross-connection is discovered, the department, after giving the customer no less
than fifteen (15) days' notice of its intention, will discontinue service, unless the condition is
corrected or an approved backflow prevention device is installed by and at the expense of the
customer. If, in the opinion of the director, a real and serious threat to public health is posed, the
department may discontinue service without notice.
(c) Service connections will not be made nor allowed to continue
where there is, in the opinion
of the director, a strong potential for hazardous cross-connections, unless the customer will
install and maintain, at the customers expense, a backflow prevention device approved by
(d) Those facilities classified as actual
or potential Class I backflow hazards (by the
Missouri Department of Natural Resources, the Director of Public Works or the Director of
Water and Light Department) shall be equipped, at a minimum, with an air gap separation or
reduced pressure principle backflow prevention assembly. Those facilities classified as actual
potential Class II backflow hazards shall be equipped, at a minimum, with a double-check valve
The director, at his discretion, may require a device at other
facilities dangerous to public
(e) Backflow prevention devices shall be approved by the director
before installation by the
customer and shall have been certified by a recognized testing laboratory acceptable to the
director. Installation and initial testing shall be approved by the department.
(f) The customer shall install and maintain all backflow prevention
devices in good working
order and to make no piping or other arrangements for bypassing the devices. The customer shall
permit access to the premises by the certified backflow prevention assembly tester, supplier of
water and DNR representatives, at reasonable times and upon presentation of identification, for
inspection of the customer water system or testing of backflow prevention assemblies installed in
accordance with this ordinance.
(g) Periodic testing and inspection schedules shall be established
by the department for all
backflow prevention devices. Inspection intervals will not exceed the minimum requirements set
out in the Rules of the Missouri Department of Natural Resources. As a courtesy only, the
Department may send a reminder notice to customers with known backflow prevention devices.
(h) It shall be the responsibility of the customer to have each
assembly inspected and tested by
a properly certified and listed tester at the time of construction or installation and each year
thereafter, no later than thirty (30) days after the anniversary of the original inspection test date.
Backflow prevention assembly testers shall be certified through a Department of Natural
Resource approved program and be listed with the department.
(i) Testers shall report to the supplier of water and the customer
the results of inspections or
tests conducted in compliance with applicable state regulations. Reports of tests shall contain
signature of the certified tester, attesting to the compliance or noncompliance of the assembly
with established operational requirements. Reports shall be submitted to the department within
thirty (30) days after performing the inspection or test.
(j) Testing, inspection, and overhaul of devices may be
performed by department personnel
when it is deemed in the interest of the department and other customers. The device owner will
be charged not less than the actual cost for the testing and inspection, plus any cost for
replacement or repair parts and other materials.
(k) A violation of any part of this section may cause the
customers water supply to be
disconnected by the department.
(Code 1964, § 15.331; Ord. No. 17835, § 1, 9-15-03)
(Ord. 17835, Amended, 09/15/2003, Prior Text)