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May 20, 2026

Randy Arizmendiz has joined Parametrix as a senior principal engineer. He brings 20 years of experience planning, designing, and delivering advanced wastewater treatment systems for municipal and industrial clients throughout the West Coast.
Arizmendiz comes to Parametrix from Revida Water, where he served as vice president of engineering and construction. His experience includes large-scale organics-to-energy facilities, anaerobic digestion and renewable natural gas systems, advanced wastewater treatment, industrial water reuse, and integrated energy recovery infrastructure.
At Parametrix, he joins the firm's water division, which provides electrical and supervisory control and data acquisition, flood control, stormwater, wastewater, and drinking water services to cities, counties, water districts and others throughout the Northwest.