California WCIRB Class Code 9519 applies to work on household appliances specifically for water softening, conditioning and filtration systems. This covers in-home and light commercial installation, service, repair and media replacement work. The approved pure premium rate for Sept 1, 2026 is $6.228 per $100 of payroll, which matters for budgeting and claims exposure.
This classification is for employees who install, service, maintain or remove household water softeners, conditioners and filtration systems—typically single-family homes, apartments and small commercial units. Covered operations include connecting units to potable water and drain lines, electrical hookups for transformers/timers, replacing filter cartridges and media (resin, carbon, sediment), programming controllers and performing water quality testing. It also includes delivery and in-home placement of units, platform or floor mounting, disconnecting old equipment and basic plumbing tie-ins (shutoffs, flex lines, fittings) done as part of appliance work. It does not generally cover large commercial water-treatment plant operations or heavy industrial piping projects.
The pure premium rate of $6.228 per $100 of payroll represents the expected cost of claim losses for this classification before insurer expenses and adjustments. To calculate the base loss cost, multiply total payroll for employees in class 9519 by 0.06228. The final premium your company pays will also reflect your insurer's underwriting loads, experience modification (mod), deductibles, payroll audits, and any classification mix or misclassification corrections.
Cal/OSHA requirements that frequently apply include maintaining an effective Injury and Illness Prevention Program (IIPP), following Hazard Communication (SDS) practices for resins, sanitizers and cleaning agents, implementing electrical safety procedures for wiring and grounding, and enforcing ladder and access safety when working in attics or on stairs. If work generates dust or chemical aerosols, employers must follow respiratory protection and exposure control rules and provide employee training and PPE consistent with Cal/OSHA guidance.
A PEO like Key HR helps employers in class 9519 by ensuring accurate classification and payroll reporting, centralizing workers' comp claims management, and implementing targeted loss‑control programs (manual lifting training, chemical handling, electrical safety and ladder safety). Key HR can also support return‑to‑work plans, coordinate medical care and provide regular safety audits to reduce claims frequency and pressure on your experience modification.
Get a QuoteIf the technician's primary work is installing and servicing household water softeners, conditioners or filtration appliances, class 9519 is appropriate. If the employee spends most of their time doing general plumbing, large commercial piping or heavy pipefitting, a different plumbing or pipefitting class may apply. Accurate payroll allocation by job task is essential.
Enforce two‑person lifts or mechanical lifting aids for heavy tanks, require GFCI protection and lockout procedures during electrical work, maintain current SDS and chemical handling procedures, keep work areas dry and use slip‑resistant footwear, and provide training on safe plumbing connections and tool use.
Focus on preventing small claims (slips, strains) through training and equipment, implement a formal return‑to‑work program to limit indemnity exposure, ensure timely and centralized claims reporting, and periodically review classifications and payroll reporting with your PEO or broker to avoid misclassification that can raise your mod and premium.
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