Water treatment specialists made sure troops and military families had safe drinking water. In the Army, the 92W Water Treatment Specialist locates raw water sources, installs and operates purification equipment such as the Reverse Osmosis Water Purification Unit (ROWPU), tests water quality, and manages storage and distribution, including monitoring pH and chlorine residuals against Army potability standards. In the Navy, Utilitiesmen (UT) with the Seabees operate and maintain water and wastewater systems and treatment plants along with plumbing, fuel storage, and sewage disposal systems. In the Air Force, Water and Fuel Systems Maintenance specialists (AFSC 3E4X1) install and operate potable water treatment equipment, analyze water to determine treatment methods, and maintain water distribution and wastewater collection systems.
The work put these service members in daily, hands-on contact with hazards most troops only encountered indirectly. They mixed and injected disinfection chemicals such as calcium hypochlorite, worked around pressurized chlorine equipment, drew raw water from wells and surface sources that were sometimes contaminated by fuel spills, solvents, or firefighting foam runoff, and repaired aging plant piping and asbestos cement water mains. At installations with contaminated groundwater, most notably Marine Corps Base Camp Lejeune, the people who ran the treatment plants and distribution systems worked with, sampled, and drank the same contaminated water they delivered to the rest of the base.
Exposures in This Job
TCE, PCE, benzene, and vinyl chloride (contaminated source water, including Camp Lejeune)
Water treatment personnel handled raw and finished water drawn from wells that, at some bases, were contaminated with industrial solvents. At Camp Lejeune, the Hadnot Point plant delivered water contaminated primarily with trichloroethylene (TCE), measured as high as 1,400 parts per billion, along with PCE, benzene, and vinyl chloride, while the Tarawa Terrace plant delivered water with PCE up to 215 parts per billion. ATSDR estimates Tarawa Terrace water exceeded the current PCE limit for 346 months between 1957 and 1987. Conventional treatment of that era did not remove these solvents, so plant operators sampled, handled, and drank the contaminated water daily.
Chlorine gas and calcium hypochlorite (disinfection chemicals)
Disinfection was a core daily duty. Army 92Ws mix and dose calcium hypochlorite and monitor chlorine residuals in finished water, and installation plant operators worked around pressurized chlorine feed equipment in enclosed chlorination rooms where leaks could concentrate quickly. NIOSH identifies chlorine as a strong oxidizer that attacks the eyes, skin, and respiratory system, with a ceiling exposure limit of just 0.5 parts per million and effects that range from burning eyes and cough to lung swelling and inflammation of lung tissue. Repeated handling of concentrated hypochlorite powder and chlorine gas over a career meant routine respiratory and skin exposure.
PFAS in groundwater and source water
Firefighting foam (AFFF) used at crash sites and fire training areas seeped into groundwater at many installations, and VA acknowledges that service members may have been exposed to PFAS through the water supply at several bases. Water treatment specialists were closer to that pathway than most: they drew from the affected wells, collected and tested water samples, backwashed filters, and maintained distribution systems carrying PFAS before the contamination was recognized or regulated. VA notes the duration and intensity of exposure at any given base is often unknown, which makes job records especially important.
Asbestos (asbestos cement water mains, pipe insulation, plant infrastructure)
Older base water systems relied on asbestos cement distribution pipe, and treatment plants, pump houses, and utility buildings contained asbestos insulation on piping, boilers, and equipment. VA specifically lists work with pipes, insulation, cement sheet, construction, and demolition of old buildings among the duties that carried asbestos exposure risk. Cutting, tapping, or repairing asbestos cement mains and stripping old lagging during plant maintenance released respirable fibers, and Utilitiesmen and water and fuel systems mechanics performed exactly this kind of repair work for years.
Linked Health Conditions
The solvents found in contaminated military drinking water are established carcinogens: ATSDR reports that TCE, benzene, and vinyl chloride are classified as human carcinogens and PCE as a likely or probable human carcinogen. VA recognizes eight conditions as presumptive for qualifying Camp Lejeune service, including bladder cancer, kidney cancer, adult leukemia, multiple myeloma, non-Hodgkin lymphoma, liver cancer, aplastic anemia and other myelodysplastic syndromes, and Parkinson's disease.
Asbestos work in plants and pipe systems is linked to mesothelioma and lung cancer, diseases that can appear decades after exposure. For PFAS, VA is currently reviewing the scientific evidence on a possible link to kidney cancer, though it calls the overall evidence inconclusive so far. See all conditions on the cancers page.
Supporting a VA Claim
A key distinction: the job title alone almost never creates a VA presumption. Presumptive status depends on where and when a veteran served. A water treatment specialist, or anyone else, with at least 30 days at Camp Lejeune or MCAS New River between August 1, 1953 and December 31, 1987 may qualify presumptively for the eight Camp Lejeune conditions. Check eligibility with the presumptive conditions guide.
Outside a presumption, job-based exposure supports a direct service connection claim, which requires three things: a current diagnosis, evidence of in-service exposure, and a medical nexus opinion connecting the two. Helpful evidence includes:
- DD214 and personnel records showing the 92W MOS, UT rating, or 3E4X1 AFSC and duty stations
- Buddy statements describing chlorination duties, chemical handling, or pipe repair work
- Official job descriptions and training records that match the claimed exposure
PFAS exposure has no VA presumption as of mid-2026; VA decides those claims case by case while its scientific review continues. Start with the exposure check to map service history against documented hazards. No outcome is guaranteed; strong records improve a claim, they do not decide it.
Sources
- https://www.army.mil/article/288973/bridging_the_gap_water_purification_in_lsco_and_the_return_of_the_92w
- https://www.navy.com/careers-benefits/careers/construction/utilitiesman
- https://www.airforce.com/careers/maintenance-and-repair/water-and-fuel-systems-maintenance
- https://www.atsdr.cdc.gov/camp-lejeune/about/summary-of-the-water-contamination-situation.html
- https://www.atsdr.cdc.gov/camp-lejeune/risk-factors/index.html
- https://www.va.gov/disability/eligibility/hazardous-materials-exposure/camp-lejeune-water-contamination/
- https://www.cdc.gov/niosh/npg/npgd0115.html
- https://www.publichealth.va.gov/exposures/pfas.asp
- https://www.va.gov/disability/eligibility/hazardous-materials-exposure/asbestos/
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This page is for informational purposes only and is not medical or legal advice. Consult a qualified professional about your health or benefits.