Watershed

Los Angeles

A watershed connects rainfall and streams across an area. It does not necessarily describe where a city’s treated drinking water originates.

18070105

Available records

Available tests and water assessments

These counts bring together results from local place pages, and some may overlap. They tell you how much information is available, not how much water is in good or poor condition.

4surface assessment-unit records0 supporting · 1 impaired · 3 unknown

251monitoring sites0 recent observations in this publication

16UCMR5 reported detectionsDetection does not automatically mean violation.

113nearby dam recordsCounts can overlap between connected locations.

Connected local views

Los AngelesLos Angeles County · streamflow near normal