8 Ill. Adm. Code 256.90
Connections to the Water Supply
Section 256
Section 256.90 Connections
to the Water Supply
a) Water service lines that connect a containment area to a
community public water supply shall include either a reduced pressure principle
backflow preventer or a fixed proper air gap, in accordance with the Illinois
Environmental Protection Act [415 ILCS 5] and Agency Technical Policy Statement
(35 Ill. Adm. Code 653.803(c)(4)).
b) Water service lines that connect a containment area to a water
supply other than a community public water supply shall include either a
reduced pressure principle backflow preventer or a fixed proper air gap, in
accordance with the Illinois Plumbing Code (77 Ill. Adm. Code 890).
c) A fixed proper air gap with a minimum of 6 inches above the
flood level rim of the receptacle is required for water distribution points
which are pesticide product pipe connections and tank filling operations. A
reduced pressure principle backflow preventer is adequate for water
distribution points that wash vehicles, rinsate pads, containers or other uses
that are not directly connected to product lines or tanks.
d) Installation, maintenance and inspection of such backflow
prevention devices shall be carried out in accordance with Illinois
Environmental Protection Agency Technical Policy Statement (35 Ill. Adm. Code
651 and 653) or the Illinois Plumbing Code (77 Ill. Adm. Code 890), whichever
is applicable.