1505.13 Inspection and Testing. Recycled water supply

systems shall be inspected and tested in accordance with Section 1505.13.1 and Section 1505.13.2. The reclaimed (recy- cled) water purveyor or other designated appointee may substitute for the Authority Having Jurisdiction for the pur- pose of inspections and tests pursuant to this section .

1505.13.1 Supply System Inspection and Test. Recycled water supply systems shall be inspected and tested in accordance with this code for testing of potable water piping. 1505.13.2 Cross-Connection Inspection and Test-ing. An initial visual inspection and cross-connection test shall be performed on both the potable and recycled water supply systems before the initial operation of the recycled water supply system. During an initial or sub- sequent cross-connection test, the potable water system and recycled water supply system shall be isolated from each other and independently inspected and tested to ensure there is no cross-connection in accordance with Section 1505.13.2.2. Initial or subsequent inspections or tests shall be performed in accordance with Section 1505.13.2.1 through Section 1505.13.2.4. (1) Written reports of cross-connection inspections and

testing shall be performed as provided in California

1505.13.2.2 Cross-Connection Test. A cross- connection test shall be performed pursuant to Sec- tion 1505.13.2. The test shall be conducted in the presence of the Authority Having Jurisdiction or other authorities having jurisdiction to determine whether a cross connection has occurred as follows: (1) The potable water system shall be activated and

pressurized. The recycled water supply system

(1) The potable water system shall be activated and

pressurized. The recycled water supply system shall be shut down, depressurized, and drained. (2) The potable water system shall remain pressur-

ized for a minimum period of time specified by

(2) The potable water system shall remain pressur-

ized for a minimum period of time specified by the Authority Having Jurisdiction while the recycled water supply system is empty. The min- imum period the recycled water supply system is to remain depressurized shall be determined on a case-by-case basis, taking into account the size and complexity of the potable and the recy- cled water supply systems, but in no case shall that period be less than 1 hour. (3) All fixtures, potable and reclaimed (recycled)

water source, shall be tested and inspected for

(1) Written reports of cross-connection inspections and

testing shall be performed as provided in California Code of Regulations, Title 22, Section 60316. (2) A cross-connection test pursuant to Section

1505.13.2.2 shall be performed on the premises of a

A cross-connection test pursuant to Section

1505.13.2.2 shall be performed on the premises of a recycled water supply system when there is material reason to believe that the potable water system or recycled water supply system separation from another water supply has been compromised. A material reason to believe that the system has been compromised may be based on, but is not limited to, evidence gathered (a) during a visual inspection performed pursuant to Section 1505.13.2.1, (b) as a result of an inspection performed following com- plaints of water quality or flow conditions consis- tent with a compromised system, or (c) during a visual inspection that indicates that the recycled water supply system has been modified. 1505.13.2.1 Visual System Inspection. A visual dual system inspection shall be conducted by the Authority Having Jurisdiction and other authorities having jurisdiction to verify that no modifications were made, and that no cross-connections are visi- ble as follows: (1) Meter locations of the reclaimed (recycled) water

source and potable water lines shall be checked.

(3) All fixtures, potable and reclaimed (recycled)

water source, shall be tested and inspected for flow. Flow from a recycled water supply system outlet indicates a cross-connection. No flow from a potable water outlet shall indicate that it is connected to the recycled water supply system. (4) The drain on the recycled water supply system

shall be checked for flow during the test and at

(4) The drain on the recycled water supply system

shall be checked for flow during the test and at the end of the test. (5) The potable water system shall then be depres-

surized and drained.

(5) The potable water system shall then be depres-

surized and drained. (6) The recycled water supply system shall then be

activated and pressurized. For the initial test, a

(6) The recycled water supply system shall then be

activated and pressurized. For the initial test, a temporary connection to a potable water sup- ply shall be required to test the recycled water supply system plumbing. At the conclusion of the test, the temporary connection to the potable water supply shall be disconnected. (7) The recycled water supply system shall remain

pressurized for a minimum period of time spec-

(7) The recycled water supply system shall remain

pressurized for a minimum period of time spec- ified by the Authority Having Jurisdiction while the potable water system is empty. The mini- mum period the potable water system is to remain depressurized shall be determined on a case-by-case basis, but in no case shall that period be less than 1 hour. (8) All fixtures, potable and reclaimed (recycled)

water, shall be tested and inspected for flow.

(1) Meter locations of the reclaimed (recycled) water

source and potable water lines shall be checked. (2) All pumps and equipment, equipment room

signs, and exposed piping in equipment room

(2) All pumps and equipment, equipment room

signs, and exposed piping in equipment room shall be checked. (3) All valves shall be checked to ensure that the

valve lock seals are still in place and intact.

(8) All fixtures, potable and reclaimed (recycled)

water, shall be tested and inspected for flow. Flow from a potable water system outlet indi- cates a cross-connection. No flow from a recy- cled water supply system outlet will indicate that it is connected to the potable water system. (9) The drain on the potable water system shall be

checked for flow during the test and at the end

(10)Where there is no flow detected in the fixtures

that would indicate a cross-connection, the potable water system shall be repressurized.

All valves shall be checked to ensure that the

valve lock seals are still in place and intact. Valve control door signs shall be checked to verify that no signs have been removed.

(9) The drain on the potable water system shall be

checked for flow during the test and at the end of the test. (10)Where there is no flow detected in the fixtures

that would indicate a cross-connection, the

2019 CALIFORNIA PLUMBING CODE 321

ALTERNATE WATER SOURCES FOR NONPOTABLE APPLICATIONS any other purpose or distributed to any other persons or parties.

Where shutting off the water is not practical for res- idential, institutional, or industrial buildings, the Authority Having Jurisdiction may authorize testing procedures other than those described above. 1505.13.2.3 Discovery of Cross-Connection. In the event that a cross-connection is discovered, the following procedure shall be activated immedi- ately: (1) Notify the Authority Having Jurisdiction of the

cross-connection.

(1) Notify the Authority Having Jurisdiction of the

cross-connection. (2) The reclaimed (recycled) water piping to the

building and its premises shall be shut down at

(2) The reclaimed (recycled) water piping to the

building and its premises shall be shut down at the meter, and the reclaimed (recycled) water riser shall be drained. (3) Potable water piping to the building and its

premises shall be shut down at the meter.

(3) Potable water piping to the building and its

premises shall be shut down at the meter. (4) The cross-connection shall be uncovered and

disconnected.

(4) The cross-connection shall be uncovered and

disconnected. (5) The building and its premises shall be retested

in accordance with Section 1505.13.2.1 and

(5) The building and its premises shall be retested

in accordance with Section 1505.13.2.1 and Section 1505.13.2.2. (6) The potable water system shall be chlorinated

with 50 parts-per-million (ppm) chlorine for 24

(6) The potable water system shall be chlorinated

with 50 parts-per-million (ppm) chlorine for 24 hours. (7) The potable water system shall be flushed after

24 hours, and a standard bacteriological test

Title 22, Division 4, Chapter 3 (commencing with Section 60301) for disinfected tertiary recycled water and the appli- cable reclaimed (recycled) water use. The reclaimed (recy- cled) water supplier shall supply water in accordance with permits issued by the State Water Resources Control Board or Regional Water Quality Control Board.