Hydrant #217: Applying SOP 14.3 Under Time Pressure
The crew is 8 days into a 180-day hydrant inspection cycle when they reach hydrant #217. Department SOP 14.3 reads: 'Each hydrant is inspected once every 180 days. A hydrant with static pressure below 20 psi, or a leak at the bonnet or nozzle threads, is tagged OUT OF SERVICE and the water department is notified within 24 hours. Defects limited to paint, missing caps, or damaged operating nuts are tagged MINOR and corrected at the next scheduled inspection.' Hydrant #217 reads 18 psi on the crew's gauge, shows no leak, and has one missing 2½-inch cap. The crew's log shows the last inspection was 172 days ago. A water department dispatcher is reachable by radio until 1700; it is now 1630.
1. What tag or tags does hydrant #217 receive, and what notification, if any, must be made today? Show how each SOP condition applies.
Read the worked answer
Tag: OUT OF SERVICE, with the missing cap also noted as a minor defect.
Condition-by-condition:
- Static pressure 18 psi is below the 20 psi threshold → first OUT OF SERVICE trigger is met.
- The SOP uses 'or,' so the absence of a bonnet or thread leak does not soften the result. One trigger is enough.
- Missing 2½-inch cap is a listed MINOR defect, but MINOR items do not downgrade a hydrant that independently meets an OUT OF SERVICE condition. Both findings go on the tag; the pressure condition controls.
Notification: required within 24 hours. It is 1630 and the dispatcher is on radio until 1700, so notify now rather than relying on a 24-hour window that partly falls outside dispatch hours. Log the time, the reading, and who was notified.
Before finalizing, a sound crew would re-check with a second gauge or compare against a nearby hydrant, because an 18 psi reading can be instrument error rather than a true system condition. The SOP governs the tag; good practice governs the gauge.
2. At the next stop the crew finds hydrant #218: no leak, 22 psi, a missing cap, and peeling paint. The crew leader says, 'Both hydrants are the same problem.' Is that correct? Explain the classification and the practical consequence of the difference.
Read the worked answer
Not correct. The SOP separates two distinct triggers.
- #218: 22 psi is at or above the 20 psi floor, and there is no leak. So the OUT OF SERVICE trigger is not met.
- Missing cap and peeling paint are both cosmetic/limited defects → MINOR only, corrected at the next scheduled inspection. No water department notification is generated.
Consequence: #217 is unavailable for fire attack until the water department acts; #218 remains in service and available to the first-arriving engine. Treating them alike would either pull a serviceable hydrant out of the plan or leave an unreliable one in it.
Note the thin margin: 22 psi is only 2 psi above the threshold. A reasonable crew flags #218 in the log for a recheck next cycle and marks it on the pre-plan, even though the SOP does not require a tag.
3. The crew points out they are inspecting on day 172, eight days early. Does the timing change the required action, and what should the crew do about the 180-day clock?
Read the worked answer
Timing does not change the classification. The SOP keys the tag to the defects found, not to the date. The 18 psi finding is acted on the same way on day 172 as on day 180.
Two separate points:
- Early inspection is not a violation. The SOP sets a maximum interval ('once every 180 days'), not a minimum, so inspecting at day 172 is within the rule.
- The clock is ambiguous. The SOP does not say whether an early inspection resets the 180-day cycle. The crew should record the actual inspection date, keep the existing due date unless the company officer directs otherwise, and ask the officer to clarify the reset rule in writing so the next cycle is not shortened or skipped by accident.
Reasoning principle: when a written procedure is silent, do not invent a rule that quietly changes the schedule - document the facts and escalate the ambiguity.