County of Los Angeles Department of Public Works

RUNOFF
The Department operates 65 stream gaging stations (62 water-stage recording stations and 3 witness gages). Daily mean flow data and maximum instantaneous flow for each station were collected for these stations during the reporting period. Additional data can be obtained by contacting the custodian of hydrologic records.

ALERT SYSTEM
Automated Local Evaluation in Real Time

The Department operates and maintains the ALERT computer system to monitor meteorological conditions at 23 river stage locations in the County.

The Department's ALERT System also receives rainfall, streamflow, and reservoir data from the Corps of Engineers' Los Angeles Telemetry System.

COOPERATION:

The Department receives or has access to streamflow data from other agencies. Data from 5 of the Department's stations are published in the United States Geological Survey's annual water supply papers.

Agencies with which the Department exchanges data are:

United States Geological Survey, Water Resource Division
United States Army Corps of Engineers
State Department of Water Resources
The Metropolitan Water District of Southern California
San Gabriel River Water Committee

USGS MONITORING
OF STREAM GAGING STATIONS

During the Water Year 2001-02, Public Works contracted the United States Geological Survey (USGS) to maintain, monitor, and collect data from several stream gaging stations in the Northern part of Los Angeles County. The data they have collected is summarized in the discharge reports included in this section. The following lists the stream gaging stations monitored by the USGS:
USGS ID 10263630 10263665 10264000 10264682 10264100 11107870 11107770 11108000	LAC ID F394-R F122-R L1-R F395-R F125-R F377-R F328-R F92-R	START DATE 08/22/02 11/05/01 01/25/02 10/17/01 01/15/02 01/05/02 11/05/01 02/15/02

CUSTODIAN:

Unpublished information may be obtained by contacting:
Los Angeles County Department of Public Works
Water Resources Division
P.O. Box 1460
Alhambra, CA 91802-1460
...or telephone: (626) 458-6120