BLS metro-level wage data places Water and Wastewater Treatment Plant and System Operators pay in Southwestern New Hampshire nonmetropolitan area at a median of $60,440 per year ($29.06/hr/hour), drawn from the OEWS May 2025 release for this Metropolitan Statistical Area. Compared to the national median of $60,020, Southwestern New Hampshire nonmetropolitan area pays +1% above, signaling either concentrated employer demand, a cost-of-living premium, or both. Approximately 40 water and wastewater treatment plant and system operatorss are employed across the Southwestern New Hampshire nonmetropolitan area MSA in SOC 51-8031.

The Southwestern New Hampshire nonmetropolitan area pay distribution spans from $46,670 at the 10th percentile to $75,090 at the 90th — a 1.6× 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 $51,470 and the 75th at $71,450, so half of Southwestern New Hampshire nonmetropolitan area-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 Southwestern New Hampshire nonmetropolitan area 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 NH data, and peer-metro comparisons — a median is a starting point, not a ceiling.