Trace each riser from the water supply and fire department connection through every hose valve location the drawings show, then compare the specification’s water supply and residual pressure basis, hose valves and cabinets, main drains, alarms, and any fire pump with the drawings. Check that the fire department connection on the site plan and the one on the riser diagram are the same.
Assemble the review package
Gather the fire protection riser diagram and plans, the architectural stair and floor plans, the civil site plan with hydrants and the fire department connection, the water supply or flow test data, the fire alarm drawings for flow and tamper switches, and the issued Section 21 12 00. WBDG shows this section archived in February 2024 and reinstated in May 2025 without revision, so check which version your project manual carries.
WBDG publishes UFGS 21 12 00: Standpipe Systems as a public guide-specification reference (accessed October 17, 2026). Use your project’s issued specification and amendments for the actual comparison; the guide specification does not automatically govern your project. The checklist below is an original suggested review workflow, not a reproduction of the UFGS requirements.
Eight checks to run against the issued set
Use one record per location or system. The CSV contains the same eight prompts plus fields for source revisions, observed evidence, the review owner, the decision, and closure references.
| Check | Sources to compare | Question to resolve |
|---|---|---|
| Riser and hose valve locations | Riser diagram + architectural stair plans + Hose Valves article | Does every hose valve on the riser diagram appear at the same stair landing or location on the architectural plans? |
| Fire department connection | Fire Department Connections article + civil site plan + riser diagram | Is the fire department connection shown in one location, accessible from the fire lane and near a hydrant, on both the site plan and the riser diagram? |
| Water supply basis | Residual Pressure, Friction Losses, and Water Supply articles + flow test data | Do the drawings or design notes show the supply and pressure basis the section’s system description asks for? |
| Fire pump and backflow | Fire Pumps and Backflow Preventer articles + riser diagram | If the section relies on a fire pump or backflow preventer, are both drawn and coordinated with the fire pump and plumbing drawings? |
| Hose cabinets | Fire Hose Cabinets article + wall types + architectural plans | Where cabinets are specified, are they located on the plans with a wall type that can receive them, including at rated walls? |
| Main drains and test connection | Main Drains and Waterflow Test Connection articles + riser diagram | Is a main drain and test connection shown for each riser with a place to discharge? |
| Alarms and supervision | Alarm Valves, Waterflow Detector, Pressure Switch, Tamper Switch articles + fire alarm plans | Are the flow and tamper devices the section specifies shown on the fire alarm drawings? |
| Standpipe system drawings | Standpipe System Drawings article + submittal list | Does the submittal list call for the plans, elevations, schematic, and wiring diagrams the section requires before work starts? |
Worked example: a standpipe left off the deferred submittal list
A published Groundbook finding on a waterfront hotel review found that notes and approval conditions required sprinkler, alarm, and waterfront standpipe systems, but the deferred submittal list identified only a different system. A standpipe specification would point to the same gap: the system is required, but the documents that should define and approve it are not scheduled.
Ask the architect of record to list the standpipe system on the deferred submittal schedule and confirm which design professional prepares its drawings. Check the sprinkler and fire alarm packages on the same list before closing the item.
See the published deferred fire protection finding. The illustrative scenario above is separate from that published finding.
Avoid a false conflict
A standpipe shown on the architectural stair plans does not mean the fire protection set includes it. Hose valves and connections are often drawn by the architect while the system itself is deferred to a contractor.
When requirements disagree, follow the project’s document-control and clarification process. Do not assume that drawings always override specifications, or the reverse. Identify the exact sources and request an authorized decision.
Close the issue across the affected documents
Record the location or tag, drawing and specification references, issue dates, observed difference, and the decision needed. Assign an owner and keep the item open until the response identifies the governing requirement. Check the revised drawings and specification references together; a response email alone may leave the issued package inconsistent.
For the overall process, use the guide to drawing and specification conflicts. Mark an inapplicable checklist row with a reason, and distinguish a verified correction from a question that still needs design information.
Where Groundbook fits
Groundbook’s drawing and specification review helps investigate potential disagreements in the documents you supply. Include the relevant specification sections and drawing references, then verify the cited evidence with the responsible reviewers before acting on a finding.