SAN ANTONIO — Residents living near a private lake on the northeast side say they’re witnessing an ecological collapse: dead fish, dying ducks and geese, trees losing their leaves and a smell so strong they can’t open their windows.

The unfolding die-off is happening at Northern Hills Lake, a privately managed lake near Thousand Oaks, overseen by Acadia on the Lake Apartments management. Several residents tell KENS 5 the situation began in late spring and early summer, and has grown steadily worse.

Greg Harman has lived in the community for 12 years, and said the lake was the main draw for nearly everyone who moved to the area.

“To have this right outside your back door to just go for a walk," Harman explained. "Many of us have adopted ducks and geese and basically raised them where the

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