Water Marshal

PRAETORIAN POWER PROTECTION LLC•Montgomery, AL

3d•$60 - $70

About The Position

The Water Marshal is responsible for ensuring the safe isolation, control, draining, flushing, and management of all fluid and pressure systems (water, air, oil, refrigerant, and other piping systems) during data center construction, pre-commissioning, flushing, hydrostatic testing, and startup activities. This critical safety role prevents accidental release of fluids or pressure, supports safe work practices on mechanical systems, and protects personnel and equipment during high-risk phases of the project.

Requirements

Minimum 5 years of experience in data center or industrial construction, mechanical commissioning, or large-scale piping/fluid systems
Strong working knowledge of Lockout/Tagout (LOTO) procedures as they apply to fluid, pneumatic, hydraulic, and pressurized systems
Hands-on familiarity with data center mechanical systems, including chilled water, condenser water, glycol loops, compressed air, refrigerant piping, fuel oil, and flushing/pressure testing protocols
Experience developing or executing piping flush plans and hydrostatic testing
OSHA 30-Hour Construction certification (preferred)
Knowledge of ASME, NFPA, or other relevant piping and pressure safety standards
Proven ability to work independently and make critical safety decisions under pressure
Excellent communication and leadership skills
Detail-oriented with strong documentation and record-keeping abilities
Ability to read and interpret P&IDs, piping isometrics, and mechanical drawings

Nice To Haves

Previous experience as a Water Marshal, Mechanical Safety Coordinator, or LOTO authority for fluid systems
Experience on hyperscale or mission-critical data center projects
Knowledge of commissioning processes (Level 3–5), including integrated system testing for cooling and mechanical infrastructure
Understanding of environmental considerations for water discharge and treatment during flushing

Responsibilities

Oversee and enforce Lockout/Tagout (LOTO) and isolation procedures for all fluid, pneumatic, hydraulic, and pressure systems
Verify and approve isolation points (valves, blinds, blanks, drains, vents) before work begins on piping, pumps, chillers, cooling towers, or related systems
Manage piping flush plans, chemical cleaning, hydrostatic/pneumatic pressure testing, and system draining/venting activities
Coordinate with mechanical, piping, and commissioning teams to ensure proper isolation, depressurization, and safe reintroduction of fluids or pressure
Conduct pre-work safety reviews and hazard assessments for activities involving water, air, refrigerant, oil, or other process fluids
Perform regular audits and inspections of isolation devices, tags, blinds, and control procedures
Maintain accurate records of all isolations, permits, flush plans, test results, and clearances
Serve as the single point of control for re-pressurizing or reintroducing fluids into systems after work is completed and verified
Stop any unsafe work related to fluid or pressure systems immediately
Train and coach site personnel on fluid isolation, flushing best practices, and hazardous energy control for mechanical systems
Participate in incident investigations involving fluid release, pressure, or piping-related events
Ensure compliance with OSHA Control of Hazardous Energy (LOTO), company safety standards, and relevant mechanical/piping codes