1505.4 Connections to Potable or Recycled Water

Supply Systems. Recycled water supply systems shall have no direct connection to a potable water supply or alternate water source system.

Exceptions:

(1) Potable water is permitted to be used as makeup water for a reclaimed (recycled) water storage tank provided the potable water supply inlet is protected by an air gap in accordance with this code.

(2) A potable water supply may be connected temporarily for initial testing of the recycled water supply system as provided in Section 1505.14.2.2. Prior to temporarily connecting the potable line to the recycled water supply system for the initial cross-connection test purposes, the potable line must have a reduced-pressure principle backflow preventer installed.

(3) Reclaimed (recycled) water is permitted to be used as makeup water for an alternate water source system pro- vided the recycled water supply system is protected by an air gap in accordance with this code.

(4) In order to use potable water as an auxiliary water sup- ply when there is an interruption to the reclaimed (recy- cled) water supply, a changeover device, swivel ell, or other assembly is permitted if the following two condi-

tions are met:

(a) The water user maintains ongoing compliance with State Water Resources Control Board’s Cross-Con-

nection Control Policy Handbook requirements.

(b) The changeover device, swivel ell, or other assembly complies with the State Water Resources Control Board’s Cross-Connection Control Policy Handbook requirements.