UPC: Ch 15 Alternate Water Sources for Non-Potable Application

Gray water installations exceeding a maximum discharge capacity of 250 gallons per day

shall be designed by a __________________.

a. licensed plumbing designer

b. licensed plumber

c. licensed architect

d. registered design professional

D

The total estimated gray water flow for each occupant in a single family home shall be ____________________ gpm.

a. 15

b. 25

c. 35

d. 40

D

All valves, including the three-way valve, shall be ______________.

a. accessible

b. metal

c. non corrosive

d. plastic

A

The reclaimed water system shall not be connected to a _____________.

a. building sewer

b. house sewer

c. subsurface drain

d. potable water system

D

For gray water surge tanks of 75 gallons or less, the distance or clearance to a building or

structure may be reduced to ______ ft.

a. 0

b. 5

c. 10

d. 15

A

All valves shall be equipped with a locking feature except for ____________.

a. fixture supply control valves

b. fullway valves

c. gate valves

d. main valves

A

The maximum downstream pressure from a pump serving a gray water irrigation field shall

not exceed ____________ psi.

a. 10

b. 15

c. 20

d. 30

C

Subsurface irrigation fields and mulch basins shall be sized as per _______________.

a. Table 703.2

b. Table 1502.10

c. the inlet size

d. Table 1502.11

B

Gray water supply piping, including drip feeders, shall be not be less than ____________ inches below finished grade and covered with mulch.

a. 2

b. 6

c. 10

d. 12

A

The distance between a septic tank and a gray water disposal field shall be _______.

a. 5

b. 10

c. 12

d. 20

A

Where irrigation and disposal fields are installed in sloping ground, the minimum horizontal

separation between the distribution system and ground surface shall be _________ feet

a. 5

b. 15

c. 30

d. 50

B

Gray water systems shall be designed to distribute the total amount of estimated gray water on a(n) __________________.

a. twice daily basis

b. daily basis

c. hourly basis

d. yearly basis

B

Reclaimed water pipes shall be permitted to run in the same trench as potable water pipes with a ______________ inch minimum vertical and horizontal separation where both pipe materials are approved for use within a building.

a. 6

b. 12

c. 18

d. 24

B

On-site treated nonpotable water piping shall comply with ____________.

a. Section 610.0

b. Table 1502.4

c. Table 1502.11

d. Section 1601.12

A

On-site treated water systems shall have a colored background and marking information in

accordance with Section ____________ of this code.

a. 601.3

b. 1502.9.1

c. 1503.7

d. 1602.10

A

Upon discovery of a cross-connection, the potable water system shall be chlorinated with ___________ parts-per-million.

a. 50

b. 75

c. 100

d. 110

A

In calculating for gray water systems, the first bedroom is equal to __________ occupants.

a. 1

b. 2

c. 3

d. 4

B

The gray water discharge amount for a laundry is _____________ gallons per day/occupant.

a. 5

b. 10

c. 15

d. 20

C

Surge tanks placed above ground shall be placed _________________.

a. on a 1" concrete slab

b. on a 2" concrete slab

c. on a 3" concrete slab

d. on flat ground

C

A filter permitting the passage of particulates no larger than__________ microns shall be provided for on-site treated nonpotable water supplied to water closets, urinals, trap primers, and drip irrigation system.

a. 25

b. 50

c. 75

d. 100

D

3-inch piping conveying on-site treated non-potable water shall have lettering with a

minimum size of __________ inch(es).

a. 1/2

b. 3/4

c. 1

d. 1-1/4

D

Each room containing alternate water source non-potable water and equipment shall have

signage with visible lettering _________ inch.

a. 1/2

b. 3/4

c. 1

d. 1-1/4

C

The maximum absorption capacity for sandy clay is _______ gallons per feet of irrigation/leaching area for a 24-hour period.

a. 1.1

b. 1.7

c. 2.5

d. 4.0

B

The discharge from a ____________ is not used to calculate gray water discharge.

a. bath or shower

b. kitchen

c. lavatory

d. laundry

B

No excavation for an irrigation field, disposal field, or mulch basin shall extend within _____________ feet vertical of the highest known seasonal groundwater level, nor to a depth where gray water contaminates the groundwater or surface water.

a. 2

b. 3

c. 5

d. 6

B