Home / Military to civilian jobs / Marines / 1171
That is Marines MOS 1171. Civilian jobs, federal paths, and how the work reads on a resume.
What is in this guide
What the translation looks like
How it reads in service
Operated TWPS to provide potable water for a deployed battalion
How a hiring manager reads it
Operated a continuous water treatment process producing 1,500+ gallons per hour to meet quality and compliance standards
Roles this background maps to
Median pay, BLS OEWS May 2024
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Brad TachiNavy Diver · BMR founder
After the Navy he was hired into six federal career fields and tech sales, and sat on federal hiring panels along the way. The last two years went into rebuilding all of it into BMR, tuned for how resumes get screened today. 75,916 resumes built so far.
If you held the 1171 MOS, you kept Marines alive in places with no infrastructure. You ran Tactical Water Purification Systems (TWPS), Lightweight Water Purification Systems (LWPS), and Reverse Osmosis Water Purification Units (ROWPU) to turn river, lake, brackish, or even seawater into potable water that met field health standards. You also installed and repaired field plumbing, shower and laundry units, water storage and distribution systems, and the pumps and hygiene equipment a forward unit depends on. That is real water treatment and field plumbing work, not a checklist job.
The training pipeline runs through the Marine Corps Engineer School at Camp Lejeune, where 1171s learn water purification chemistry, filtration and membrane systems, water quality testing, and the mechanical side of pumps, valves, and distribution. Common duty stations include Camp Lejeune, Camp Pendleton, and Marine Corps Air Ground Combat Center Twentynine Palms, often attached to combat logistics and engineer support units. The work blends a water treatment operator's process knowledge with a plumber's hands-on repair skill.
Civilian employers value this background because the underlying skills are regulated, in demand, and hard to fake. A municipal water plant cares that you understand disinfection, turbidity, membrane fouling, and water chemistry. A mechanical contractor cares that you can install and troubleshoot pumps and piping. Both care that you did it under pressure, kept records, and met a standard every single day. Explore how your skills map across fields with the military career crosswalk, or compare paths with the Marine Corps 1142 Engineer Equipment Mechanic and 1371 Combat Engineer pages. For the language side of the move, our guide on 50 military terms translated to civilian language is a good starting point.
BMR has built more than 60,000 resumes across every branch, and 1171s land water and facilities offers faster than most people expect once the resume names the actual systems. "TWPS operator" means nothing to a hiring manager, but "reverse osmosis and membrane water treatment, daily water quality testing, pump and distribution repair" reads as a licensed-track operator. The work was already there. The translation is what gets the callback. — Brad Tachi, Navy Diver veteran & BMR founder
The number that decides most of this: how does civilian pay compare to what the paycheck looks like now?
Marines mid-career
$58K to $82K
E-5 to E-7 total comp: base plus BAH, BAS and the tax advantage.
Civilian Water Support Technician
$47K to $68K
BLS median across the direct-match civilian roles on this page.
Federal, GS-9 to GS-13
$58K to $120K
8 matching GS series, plus locality pay and step increases.
About 16% lower on average
Civilian base pay for Water Support Technicians runs about $11K below mid-career enlisted total comp, though housing comes out of that number on the military side too.
Military comp is approximate and moves with location and dependents. Civilian is the BLS median. Federal includes locality pay. The real number depends on duty station, family status, GS step and overtime.
Your MOS sits at the intersection of two regulated, recession-resistant civilian fields: water and wastewater treatment, and the plumbing and pipefitting trades. Every town needs clean water and working sewers, which is why these roles do not disappear in a downturn.
Water and Wastewater Treatment Plant and System Operators earned a median of $56,260 per year according to BLS OEWS (May 2024), and the Bureau projects faster-than-average demand as the existing operator workforce retires. The catch is licensing: most states require an operator certification by level (Class I through Class IV), and many plants will hire you as a trainee on your military process experience and let you certify on the job. Plumbers, pipefitters, and steamfitters earned a median of $61,550 (BLS OEWS, May 2024), with strong demand in commercial construction and facilities; this path runs through a licensed apprenticeship, and your field plumbing time can shorten it.
For the broader mechanical maintenance route, see how related trades stack up in military to trade careers: welding, HVAC, electrical, plumbing and the military to plumbing apprenticeships guide. Veterans coming from the same equipment world include the Air Force 3E4X1 Water and Fuel Systems Maintenance and Navy UT Utilitiesman, both of which share your civilian targets. Be honest with yourself about geography: treatment-plant jobs cluster around population centers and follow infrastructure spending, while construction plumbing tracks the regional building cycle. When you are ready to write it down, our military resume builder turns your TWPS and ROWPU experience into civilian operator language, or you can build your resume now to get started.
| Civilian job title | Industry | BLS median salary | Outlook | Match |
|---|---|---|---|---|
| Water and Wastewater Treatment Plant OperatorO*NET 51-8031.00 | Water Utilities | $56,260 | 7% (Faster than average) | strong |
| Plumber, Pipefitter, or SteamfitterO*NET 47-2152.00 | Construction & Trades | $61,550 | 6% (Faster than average) | strong |
| Stationary Engineer and Boiler OperatorO*NET 51-8021.00 | Facilities | $67,640 | 1% (Little or no change) | strong |
| Industrial Machinery MechanicO*NET 49-9041.00 | Industrial Maintenance | $62,650 | 13% (Much faster than average) | strong |
| Maintenance and Repair Worker, General (Facilities)O*NET 49-9071.00 | Facilities | $46,700 | 6% (Faster than average) | moderate |
| Water and Wastewater System Operator (Distribution)O*NET 51-8031.00 | Water Utilities | $56,260 | 7% (Faster than average) | strong |
| Heating, A/C, and Refrigeration Mechanic and InstallerO*NET 49-9021.00 | Construction & Trades | $59,810 | 9% (Much faster than average) | moderate |
Largest publicly traded U.S. water and wastewater utility; hires plant operators and distribution techs nationwide.
Operates municipal and industrial water and wastewater plants under contract; large operator workforce.
Water and wastewater operations and infrastructure across North American municipalities.
Designs and services water and wastewater pumps, treatment, and analytics equipment.
Industrial water treatment systems, membranes, and reverse osmosis equipment service.
National plumbing and drain service company hiring licensed and apprentice plumbers.
Mechanical construction and facilities services; large demand for pipefitters and maintenance techs.
Facilities engineering and maintenance across commercial and institutional properties.
Water and wastewater infrastructure design and operations; defense and federal facilities work.
Water infrastructure, treatment, and federal facilities operations and maintenance.
Large EPC contractor; utility, industrial, and federal facility operations roles.
Operations and maintenance contracts on military installations including utilities and facilities.
Federal agency operating dams, water projects, and distribution systems; hires utility and plant operators.
VA medical centers operate large utility and water plant systems and hire WG-level trade and operating staff.
BMR rewrites your 1171 experience for any of the roles above, in the language the people reading actually scan for.
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Eli · Colonel (O-6) · Marines · Operations and Intelligence
The federal government is one of the largest operators of water and utility systems in the country, from military installations to VA medical centers to Bureau of Reclamation projects, and it hires the people who run them. Your field is split across the General Schedule (GS) for technical and program work and the Federal Wage System (WG) for the hands-on trade roles, so look at both.
On the trades side, the WG-4742 Utility Systems Repair and Operating series is the closest direct match: it covers operating and maintaining water, wastewater, and utility distribution systems on federal installations. GS-1640 Facility Operations Services covers running the utility plant and building systems for a facility, a natural fit for a 1171 who managed water and hygiene systems for a unit. The WG-4749 Maintenance Mechanic and trade series (often filled at the WG level) cover the pump, valve, and plumbing repair side of your work. For the regulatory and quality angle, GS-0028 Environmental Protection Specialist and GS-0018 Safety and Occupational Health Management hire people who understand water quality compliance, sampling, and the standards behind it. Heating and boiler plant work (WG-5309) and air conditioning equipment work (WG-5306) round out the facilities mechanical paths.
Veterans' Preference adds 5 or 10 points to your competitive standing, and for trade and operating positions your documented hands-on experience often matters more than a degree. Read up on how the math works in Veterans Preference Points: 5 vs 10 Points Explained and how to position yourself in the federal series resume guides. Marines from adjacent equipment fields targeting the same installations include the 1141 Electrician. A federal resume is its own format, longer and more detailed than a civilian one. Our federal resume builder handles the structure, or you can start your federal resume directly.
| Series | Federal job title | Typical grades | Match | Explore |
|---|---|---|---|---|
| GS-1640 | Facility Operations Services | GS-7, GS-9, GS-11 | 5 of 5 | View details |
| WG-4742 | Utility Systems Repair and Operating | WG-8, WG-10, GS-7 | 5 of 5 | View details |
| WG-4749 | Maintenance Mechanic | WG-8, WG-10, WG-11 | 4 of 5 | View details |
| GS-0028 | Environmental Protection Specialist | GS-7, GS-9, GS-11 | 4 of 5 | View details |
| WG-5309 | Heating and Boiler Plant Equipment Mechanic | WG-8, WG-10 | 3 of 5 | View details |
| GS-0029 | Environmental Protection Assistant | GS-7, GS-9 | 3 of 5 | View details |
| GS-0457 | Soil Conservation | GS-7, GS-9 | 3 of 5 | View details |
| GS-0018 | Safety and Occupational Health Management | GS-7, GS-9, GS-11 | 3 of 5 | View details |
Federal raters match your record against the announcement's specialized experience statement. BMR writes the federal format for any GS series above, with the hours per week and supervisor detail a rater looks for.
Free to start. Federal and private sector formats included.
Not everyone stays in a related field. These paths run on the transferable half of the job: leadership, risk, logistics, planning.
Running a water purification process is the same discipline as running a chemical process unit: monitor instrumentation, dose chemicals, hold the output to a standard, and log everything. The transition is about learning a new process, not a new way of working.
Transfers: Continuous process operation against a spec, Chemical dosing and disinfection control, Reading gauges and process instrumentation, Hourly sampling and log documentation.
How to get there: Most plants hire process operators with a high school diploma plus mechanical aptitude and train on site. A community college process technology certificate accelerates hiring and pay.
BLS OEWS May 2024 · -4% (Decline)
Your water quality testing is exactly the fieldwork an environmental technician does: collect samples, run tests, and document results against regulatory limits. You already think in terms of standards and compliance.
Transfers: Water sampling and field testing, Understanding of disinfection and water chemistry, Compliance documentation and reporting, Operating field instrumentation.
How to get there: An associate degree in environmental science or a related field is typical, though some employers accept equivalent military lab and sampling experience. The GI Bill covers the degree.
BLS OEWS May 2024 · 7% (Faster than average)
Breweries, dairies, and beverage plants run filtration, tanks, pumps, and strict sanitation, the same equipment family you already know. Water quality and clean-process discipline are central to the job.
Transfers: Sanitation and clean-process control, Fluid handling, filtration, and tank systems, Quality sampling against a spec, Pump and valve operation.
How to get there: Entry is on-the-job training; a food safety credential like ServSafe or HACCP awareness helps. Many craft and large beverage producers hire veterans into operator roles directly.
BLS OEWS May 2024 · 1% (Little or no change)
You ran equipment that people depended on to stay healthy, monitoring output and adjusting on the fly. Respiratory therapy is the same equipment-and-protocol mindset applied to patient care, and it is one of the fastest-growing healthcare fields.
Transfers: Operating life-critical equipment to a precise standard, Monitoring readings and adjusting in real time, Calibration and equipment troubleshooting, Strict protocol and documentation discipline.
How to get there: Requires an associate degree in respiratory therapy and the CRT/RRT credential, both GI Bill eligible. A genuine career change, but a strong fit for a detail-driven equipment operator.
BLS OEWS May 2024 · 13% (Much faster than average)
Sustaining water output for a unit meant balancing production, maintenance, and quality at once, which is the core of production management. Your operator depth gives you credibility on the floor that pure managers lack.
Transfers: Production scheduling and throughput management, Quality and compliance oversight, Equipment uptime and maintenance coordination, Small-team supervision under deadline.
How to get there: Often a promotion from a production or operator role; a manufacturing or operations management certificate or degree (GI Bill eligible) accelerates the jump.
BLS OEWS May 2024 · 3% (Slower than average)
Agencies like the USGS and state water boards employ technicians who measure, sample, and monitor water resources. Your hands-on water and instrumentation experience maps to the fieldwork side of this conservation career.
Transfers: Field water measurement and sampling, Understanding of water systems and flow, Instrument reading and data logging, Compliance and reporting.
How to get there: An associate degree in a physical or environmental science is typical; military water and sampling experience strengthens the application. GI Bill covers the coursework.
BLS OEWS May 2024 · 5% (Faster than average)
Managing water support for a unit was a logistics and operations job: keep the equipment running, the people scheduled, and the output meeting standard. That coordination experience transfers to operations management across industries.
Transfers: Coordinating equipment, people, and resources, Maintaining a standard under field conditions, Logistics and consumable planning, Accountability for mission output.
How to get there: Start as an operations coordinator or supervisor; a Six Sigma Green Belt or operations certificate (GI Bill eligible) accelerates promotion into management.
BLS OEWS May 2024 · 6% (Faster than average)
The skills behind the specialty carry further than the specialty. BMR rewrites your bullets for any of the paths above without making it sound like you have never done the work.
Free to start. Try as many angles as you want.
If you are staying in water treatment or the plumbing trades, your terminology already translates. A plant supervisor knows what reverse osmosis is, and a plumbing foreman knows what distribution piping is. This section is for 1171s targeting careers OUTSIDE the water and facilities specialty, where hiring managers have never heard your acronyms and will read "TWPS" as noise.
The skill underneath your MOS is process operation under a strict standard: you ran a regulated treatment process, tested output against a spec, logged results, and fixed equipment when it failed. That signature transfers to manufacturing, quality, and safety roles. The trick is naming the transferable skill, not the gear.
| Military Term | Civilian Translation |
|---|---|
| Operated TWPS / ROWPU producing potable water | Operated a regulated treatment process meeting quality and compliance standards |
| Conducted water quality testing and logging | Performed quality control sampling, testing, and documentation against spec |
| Maintained pumps, valves, and distribution systems | Diagnosed and repaired mechanical and fluid-handling equipment to minimize downtime |
| Managed water storage and field hygiene systems | Managed utility systems and consumable resources for a 200-person operation |
A before-and-after makes the gap obvious. Before: "Operated TWPS to support battalion field operations." After: "Operated and monitored a continuous water treatment process producing 1,500+ gallons per hour, performing hourly quality control tests and maintaining 100% compliance with field health standards." The second version is one a manufacturing quality lead or facilities manager can actually score. For more examples, see hidden military skills civilians don't know you have and avoid the traps in resume mistakes veterans make. Our military resume builder writes these conversions for you.
Before, in service
Operated TWPS to provide potable water for a deployed battalion
After, on the resume
Operated a continuous water treatment process producing 1,500+ gallons per hour to meet quality and compliance standards
Before, in service
Performed daily water quality tests on field water supply
After, on the resume
Conducted hourly quality control sampling and testing, documenting results against specification with 100% compliance
Before, in service
Maintained ROWPU membrane elements during sustained operations
After, on the resume
Operated and maintained reverse osmosis membrane treatment systems, managing fouling and replacement to sustain output
Before, in service
Repaired pumps and valves on water distribution equipment
After, on the resume
Diagnosed and repaired pumps, valves, and fluid-handling equipment, minimizing downtime on critical systems
Before, in service
Installed field plumbing and water distribution for a base camp
After, on the resume
Installed and maintained water distribution piping and fixtures supporting a 200-person facility
Before, in service
Managed water storage and field shower and laundry units
After, on the resume
Managed utility systems and consumable water resources for a 200-person operation across multiple sites
Before, in service
Applied chlorination to meet field health standards
After, on the resume
Performed chemical disinfection and dosing control to meet regulatory water quality limits
Before, in service
Followed PM schedule on water purification equipment
After, on the resume
Executed a preventive maintenance program on process equipment, improving uptime and reducing emergency repairs
Before, in service
Maintained operation logs for water purification units
After, on the resume
Maintained operational logs and compliance records supporting audits and regulatory reporting
BMR turns your 1171 duties and accomplishments into civilian bullets aimed at the job you are applying for. No manual translation.
Free to start. Tailored to each posting.
Which ones you need depends on where you are headed.
RequiredCost Check current pricingTime 4-5 year apprenticeshipGI Bill eligibleRequired to work as a plumber; field plumbing experience can earn advanced standing in a registered apprenticeship.
RecommendedCost Paid apprenticeshipTime 4-5 yearsGI Bill eligibleRegistered apprenticeship in mechanical piping; Helmets to Hardhats grants veterans credit and placement.
RecommendedCost Check current pricingTime 1-2 weeksRequired to handle refrigerants; useful for the HVAC/R adjacent trade path.
RequiredCost Check current pricingTime Varies by classGI Bill eligibleThe core credential for treatment plant operation; most states require it and certify by level. Many plants let you certify on the job.
RecommendedCost Check current pricingTime Varies by classGI Bill eligibleCertifies operation of storage, pumping, and distribution networks; pairs with treatment certification.
RecommendedCost Check current pricingTime 4-8 weeks self-pacedIndustry-standard prep for state operator certification exams.
RecommendedCost Check current pricingTime Varies by classGI Bill eligibleOpens the wastewater side of the industry, often co-located with drinking water plants.
RecommendedCost Check current pricingTime 3-6 monthsRecognized facilities credential covering building systems, energy, and utility operations.
RecommendedCost Check current pricingTime 3-6 monthsValidates maintenance and reliability skills for facilities and industrial roles.
OptionalCost Check current pricingTime 2-4 monthsGI Bill eligibleProcess-improvement credential that helps move from operator into operations and production roles.
RecommendedCost Check current pricingTime 3-6 monthsFor the pivot into manufacturing quality; builds on testing and documentation experience.
RecommendedCost Check current pricingTime 4 daysStandard safety credential for industrial, construction, and facilities employers.
RecommendedCost Check current pricingTime 1 weekRequired for work involving hazardous materials and chemical handling; relevant to water chemistry and industrial sites.
Placement decides whether a screener ever sees it. BMR knows where each one ranks, what to call it, and how to frame it.
Free to start. Built around your real certs and clearance.
Your fastest route to a civilian paycheck is getting your operator certification or apprenticeship credit started before you separate. The American Water Works Association (AWWA) and the Water Environment Federation (WEF) are the industry bodies for treatment operators, and most states run their own operator certification through the state environmental or health agency. For the plumbing trade, United Association (UA) apprenticeships and the Helmets to Hardhats program connect veterans to registered apprenticeships that grant credit for military experience. SkillBridge can place you with a utility or mechanical contractor for your final months on active duty; see the SkillBridge programs list by industry.
If you are leaving water and facilities behind, an OSHA 30 card and a project or quality credential open doors in manufacturing, construction management, and operations. American Corporate Partners (ACP) offers free one-on-one veteran mentorship to help you map a path. Use SFL-TAP and the transition timeline and checklist to stay on schedule, and read the military to HVAC technician career guide if you are weighing the trades against a pivot.
Start with the military resume builder for private-sector roles or the federal resume builder for GS and WG jobs, explore options with the military-to-civilian career crosswalk, or build your resume now.
See also: Coast Guard MK Machinery Technician, Army 91C Utilities Equipment Repairer, and Army 12N Horizontal Construction Engineer career paths.
Most people do this backwards: wait for terminal leave, then panic. This is the sequence that works. Already out? Same plan, day one is today.
Days 0 to 30
Days 30 to 60
Days 60 to 90
The most direct matches are water and wastewater treatment plant operator and plumber or pipefitter, both regulated trades with steady demand. Your water purification, quality testing, and pump and distribution repair experience maps to both. Beyond the direct field, your process-under-a-standard background transfers to manufacturing quality, facilities maintenance, and industrial operations roles.
BLS OEWS (May 2024) reports a median wage of $56,260 per year for water and wastewater treatment plant and system operators, with the top end above $86,000 in higher-cost regions and larger plants. Plumbers, pipefitters, and steamfitters earned a median of $61,550. Pay rises with operator class level and licensing.
Yes, in most states. Operators are certified by class (typically Class I through Class IV), and certification is run by the state environmental or health agency. Many plants hire former military water specialists as operators-in-training on their process experience and let them earn certification on the job. AWWA and WEF offer exam prep.
Plenty of 1171s do. Your real skill is running a regulated process, testing output against a spec, and fixing equipment when it fails. That moves cleanly into manufacturing quality control, industrial production, environmental compliance, and safety roles. The Career Change Paths section on this page lists specific different-industry destinations with salary data and entry routes.
Plumbing is licensed through a registered apprenticeship, usually four to five years of paid on-the-job training plus classroom hours. Your field plumbing experience can earn advanced standing. United Association (UA) locals and the Helmets to Hardhats program place veterans into registered apprenticeships that recognize military time.
The 1171 MOS does not typically require a security clearance, so it is not your main selling point. Where it helps is federal and defense-installation work: a clean background and the ability to pass a federal investigation are assets for jobs at military bases, VA facilities, and the Bureau of Reclamation. Federal trade and operating jobs value documented hands-on experience over a clearance.
The closest is the WG-4742 Utility Systems Repair and Operating series, which runs water and utility distribution on federal installations. GS-1640 Facility Operations Services, WG-4749 Maintenance Mechanic, GS-0028 Environmental Protection Specialist, and GS-0018 Safety and Occupational Health Management are all strong matches. Many trade roles are filled at the Federal Wage System (WG) level.
Veterans' Preference adds 5 or 10 points to your score on competitive federal jobs, which can move you up the referral list. For trade and operating positions, your documented military experience often satisfies the qualification standard without a degree. Read our breakdown of 5-point versus 10-point preference to see which applies to you.
Yes. The GI Bill and related VA benefits cover many operator certification programs, apprenticeship-related instruction, and trade school. Some apprenticeships also pay a monthly housing stipend through the GI Bill while you earn on the job. Check whether your target program is VA-approved before enrolling.
Water and wastewater treatment jobs cluster around population centers and follow infrastructure spending, so larger metros and growing regions hire most. Construction plumbing tracks the regional building cycle and is strongest where commercial construction is active. Federal utility jobs concentrate near military installations and federal facilities. Be willing to look at where the work actually is.
Salary data from the U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (OEWS), May 2024. Career data from O*NET OnLine.
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