parks
A dry river sparks a fight over water where LA, Pasadena and South Pasadena meet
By Erin Stone at LAist (KPCC / Southern California Public Radio)
· July 6, 2026
· 11 min read
The Arroyo Seco is one of the L.A. River's largest tributaries, winding 25 miles from the San Gabriel Mountains to the confluence in Lincoln Heights. Its water has long been contaminated with unsafe levels of bacteria.(Erin Stone / LAist)Along the Arroyo Seco, on a strip of land where three citie...
Key takeaway River's largest tributaries, winding 25 miles from the San Gabriel Mountains to the confluence in Lincoln Heights.
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Category: parks ·
Published: July 6, 2026 ·
Source: LAist (KPCC / Southern California Public Radio) ·
Reading time: 11 min
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Frequently asked about this story
What is this story about? The Arroyo Seco is one of the L.A. River's largest tributaries, winding 25 miles from the San Gabriel Mountains to the confluence in Lincoln Heights. Its water has long been contaminated with unsafe levels of bacteria.(Erin Stone / LAist)Along the Arroyo Seco, on a strip of land where three citie...
When was this published? This article was first published on July 6, 2026 by LAist (KPCC / Southern California Public Radio) and curated for The Los Angeles readers.
Who reported this story? This story was reported by Erin Stone at LAist (KPCC / Southern California Public Radio). To learn more about how The Los Angeles selects and reviews stories, see our editorial standards .
Where can I find related coverage? See more parks coverage from The Los Angeles, or browse our daily briefing and topic hubs .
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