Burbank plant stops reporting on an already-impaired stretch of the LA River

August 17, 2026Los Angeles Plain

The Burbank Water Reclamation Plant, which discharges into the LA River near Sepulveda Dam, is currently the only facility in the broader Los Angeles Plain watershed listed by EPA in Significant Non-Compliance. The flag here isn't a pollutant exceedance; it's administrative. The plant has failed to submit its required discharge monitoring reports, which is a different kind of problem, but not a minor one.

The stretch matters as much as the paperwork. Reach 4 of the river, between Sepulveda Drive and Sepulveda Dam, is already on the state's impaired waters list and already has a completed cleanup plan attached to it. A monitoring gap on a segment that's supposed to be under closer regulatory watch, not less, means both regulators and the public temporarily lose visibility into whether that cleanup plan is actually working.

A separate, odder pattern is showing up nearby. Streamflow gauges on the LA River at Sepulveda Dam, along with the Arroyo Seco and Big Tujunga Creek, have been running well below their own recent averages, with the latest reading at roughly a twentieth of the 30-day mean (based on a thin six-reading sample, so worth holding loosely). What makes it strange is timing: the US Drought Monitor has held Los Angeles County at zero percent drought coverage every week since late December, a sharp reversal from a year earlier, when nearly the entire county sat in severe drought.

So the river is running low on paper-wet ground, not officially dry ground. In a heavily managed, dammed system like this one, summer flow answers to reservoir operations and diversions as much as to rainfall, and it doesn't track the county drought map in any simple way.

Data from U.S. Drought Monitor (NIDIS / drought.gov), EPA ECHO, USGS and EPA ATTAINS (303(d) impaired waters)

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