Labeled cutaway illustration of the South Rim wastewater treatment plant showing screening, aeration, clarifier, and filtration stages with water splitting three ways at the end

South Rim Wastewater Treatment Plant — process, lagoons, and a 2025 PFAS finding

The South Rim’s fenced 1972 wastewater plant, its lagoons, and a 2025 USGS study that traced PFAS and drugs from its effluent into a nearby spring.

September 23, 2026 · 7 min · 1302 words · Justin