§ 5.6.1. PLUMBING REVIEW REQUIREMENTS

Utility Site Plan Details (property lines must be noted, including any easements that may exist.)

A.

Water Service Data.

1.

Water service locations.

2.

Water service size.

3.

Water meter size and location.

4.

Location of fire-line back flow prevention valves. (Isolate fire system from potable water.)

5.

Landscape water supply with back flow prevention valves noted.

6.

Location of back flow prevention valves for standpipes and fire sprinklers.

7.

Materials.

B.

Gas Service Data.

1.

Gas service size and location.

2.

Materials and size per UPC.

C.

Sewer Service Data.

1.

Sewer line location, connection, size, grade of fall with clean outs per code.

2.

Sewer line load shall be calculated by fixture units.

3.

Location of existing and proposed sanitary sewer manholes and flow line elevations at manholes, with grade of fall.

4.

Storm sewer location, connection, size and grade of fall.

D.

Plumbing Layout Diagram.

1.

Building and vent system

2.

Layout diagram on floor plan.

3.

Size of building drain and vents.

4.

Size of branch drains and vents.

5.

Location of grease trap, interceptor or chemical dilution tank.

E.

Plumbing Water Riser Diagram.

1.

Plumbing Water Riser Diagram shall include:

a.

Water supply entry to building.

b.

Water supply size.

c.

Descriptive notes as to total fixture served (includes existing).

d.

Hose bibs shall have a note indicating back flow protection.

e.

Materials.

f.

Building supply to be sized according to Table 10-2 or Appendix.

2.

Necessary Documentation of Special Equipment, Materials and Installations.

F.

Plumbing DWV Riser Diagram. Plumbing DWV Riser Diagram shall include:

1.

Finished floor levels (first, second, etc.).

2.

Size of waste lines and locations.

3.

Size of vents and point of connections.

4.

Total fixture unit load including existing fixtures.

5.

Note drains that require trap seal protection.

6.

Clean outs noted where required.

7.

Size and termination of vent.

8.

Materials.

G.

Roof Drains.

1.

Locate roof drains with overflow drains or scuppers.

2.

Roof drains and overflow drains shall be run independently of each other to outside of building to an approved point of disposal.

3.

Roof storm drainage riser diagram, with piping sized and noted on plans per Appendix D of the Uniform Plumbing Code. Include total square footage of area drained (if applicable).

4.

Type of materials to be used. (Cast iron, PVC, etc.)

H.

Boilers (Water Heater Systems). When a boiler has been identified as required by state boiler law, the following is required:

1.

Piping detail to and from boiler.

2.

Detail of venting system.

3.

Access and combustion air to boiler.

I.

Fixtures (Conservation). City of Austin Water Conservation Standards shall be met.

J.

Water Meter Sizing Documentation (Alternative Method). The use of Appendix A of the Plumbing Code for sizing is recognized as an alternative method. Full documentation of the mathematical calculations required.

K.

Newly Installed Combination Waste and Vent System. The necessary documentation for new combination waste and vent systems:

1.

One-fourth (¼) inch scale isolated plumbing lay out diagram for the combination waste and vent system.

a.

All pipe sizes of the combination waste and vent system shall be labeled.

b.

When two (2) or more combination waste and vent systems are in the plan set, each system shall be documented independently by a plumbing lay out diagram.

2.

One-fourth (¼) inch scale isolated plumbing riser isometric diagram of combination waste and vent systems.

a.

All pipe sizes of the combination waste and vent system shall be labeled.

b.

When two (2) or more combination waste and vent systems are in the same plan set, each system shall be documented independently by a plumbing layout diagram.

c.

A typical of main drain, branch with trap and tail pipe with reduction noted is required.

d.

Location of required vents: cleanouts of approved size.

L.

Changes and Additions to Combination Waste and Vent Systems. Necessary documentation for changes or additions to an existing system.

1.

One-fourth (¼) inch scale isolated plumbing lay out diagram of present system with projected changes or additions to the present system.

a.

All pipe sizes of present system and the changes or additions to the present system shall be labeled.

b.

When two (2) or more systems are presented in the plan set, each system shall be documented independently by a plumbing lay out diagram.

2.

One-fourth (¼) inch scale isolated plumbing riser isometric diagram of the present system with projected changes or additions to the present system.

a.

All pipe sizes of the combination waste and vent system shall be labeled.

b.

When two (2) or more systems are presented in the plan set, each system shall be documented independently by a plumbing riser diagram.

3.

A typical of main drain, branch with trap and tail pipe with reduction noted is required.

M.

Tenant Finish Outs and Remodels. Restaurants, Pubs and Lounges.

1.

Water Service Data (New Water Service for tenant finish outs and remodel):

a.

Service location.

b.

Service size.

c.

Meter size and location.

d.

Existing fixtures on water system.

2.

Drainage Service Data:

a.

Drainage line location, load connection, size, grade of fall.

b.

Drainage line load shall be calculated by fixture units (including existing installations).

c.

Building Drain (Layout Diagram):

i.

Layout diagram on floor plan.

ii.

Building sewer sized.

iii.

Building branch sewer sized.

d.

Drainage System Vents (Layout Diagram):

i.

Floor drain vents.

ii.

Hub drain vents.

iii.

Grease interceptor vents:

- Tank vent

- Down stream line vent from tank

3.

Plumbing Water Riser Diagram:

a.

Water service entry to building.

b.

Water service size.

c.

Descriptive notes as to fixtures served.

d.

Hose bib shall have a note indicating back-flow protection.

4.

Plumbing Sewer Riser Diagram:

a.

Finished floor levels (first, second, etc.).

b.

Drain line size and location.

c.

Vent line size and location.

d.

Special plumbing items (commode carriers, e.g.).

e.

Floor drains that require trap primers.

f.

Clean outs noted on urinals and sinks.

g.

Roof line noted.