BLS metro-level wage data places Water and Wastewater Treatment Plant and System Operators pay in Oxnard-Thousand Oaks-Ventura, CA at a median of $78,350 per year ($37.67/hr/hour), drawn from the OEWS May 2025 release for this Metropolitan Statistical Area. Compared to the national median of $60,020, Oxnard-Thousand Oaks-Ventura pays +31% above, signaling either concentrated employer demand, a cost-of-living premium, or both. Approximately 320 water and wastewater treatment plant and system operatorss are employed across the Oxnard-Thousand Oaks-Ventura MSA in SOC 51-8031.

The Oxnard-Thousand Oaks-Ventura pay distribution spans from $50,590 at the 10th percentile to $104,530 at the 90th — a 2.1× spread that reflects experience tenure, specialization, employer size, and the difference between public-sector, nonprofit, and private-sector compensation inside the metro. The 25th percentile sits at $61,900 and the 75th at $99,380, so half of Oxnard-Thousand Oaks-Ventura-based water and wastewater treatment plant and system operatorss earn within that middle band.

Metro figures capture where you actually work, not just where you live — which matters for commuters. BLS draws metro boundaries from the OMB MSA definitions, so Oxnard-Thousand Oaks-Ventura, CA covers the central city plus outlying counties tied to the metro economically. Remember that OEWS wages reflect base pay only: employer-provided health insurance, retirement matches, stock options, signing bonuses, overtime, and tips are excluded and can add 20-40% to real total compensation. Before using this metro median as a negotiation anchor, triangulate against the same occupation's national profile (linked below), its state-wide CA data, and peer-metro comparisons — a median is a starting point, not a ceiling.