Station Datasets

VCPWA-Watershed Protection Hydrologic Data Server

Welcome to Ventura County Watershed Protection District Hydrologic Data Webpage. This page provides rain, stream, and evaporation data from the District's official gages in Ventura County, as well as other available data used in District planning studies.

Due to the complexity of the website and datasets, we STRONGLY urge you to read our file explaining how to download data from this website and any associated caveats by clicking on: Hydrodata Web Questions. Please read the file before you contact us with any questions regarding this site or our data sets.

For certified data or non-standard data not available on this website, please send a data request to the Hydrology Section as outlined in Hydrodata Web Questions document.

Official and Preliminary data are available by water year clicking on the station name and by selecting the water year and format selectors for each dataset. Additional Supplimental Reports for specific stations are available for downlaod from each station's drop-down menus.

Station 838 Information

Site Id: 838
Station Name: Arroyo Santa Rosa bl Blanchard Rd Drain
Latitude: 34° 13' 59.3" N
Longitude: 118° 55' 15.7" W
Datum: World Geodetic System 1984
Elevation: 227 feet
Station Type: Peak Only (Event) Site
VCWPD Zone: Zone 3 (Calleguas Creek)
USGS Site Id: None
Currently Active: No
Associated Station(s):none

Available Datasets

Dataset NamePublish TypeStart DateEnd Date
Streamflow: Event Hydrographs AvailablePublished Data10/01/2004 00:00 - 10/01/2009 00:00
Preliminary Data10/01/2009 00:00 - 09/10/2014 08:15
Streamflow: Storm Event PeaksPublished Data10/01/1985 00:00 - 10/01/2014 00:00

Official and Supplemental Reports Published for This Station

Official Reports - Click Download button to download file
Select Report:

Streamflow: Event Hydrographs Available

Publish TypeStart DateEnd Date
Published Data: 10/01/2004 00:00- 10/01/2009 00:00
Preliminary Data: 10/01/2009 00:00- 09/10/2014 08:15
Unverifed Telemetry Data:N/A
Select Starting Day and Length of Period for Hydrographs
Select Month / Day / Year:
Select Period (days):
Data Download: Select Format:
For Stream Hydrograph Plot:

Continuious Hydrographs may not be available for all sites and all time periods. Periods where hydrographs are not available are marked with quality codes greater than 150. These periods show flow values of zero but it does not mean that the flow is actually zero. For questions e-mail:

Streamflow: Storm Event Peaks

Publish TypeStart DateEnd Date
Published Data: 10/01/1985 00:00- 10/01/2014 00:00
Unverifed Telemetry Data:N/A
Peak Streamflow - Multiple Water Year Products
Select Water Year Range: to
Select All/Annual:
Data Download: Select Format:

Obsolete Reports and Data Files

Warning: These files are obsolete and should be used only if the data are not available from above choises.

Select a compiled dataset or summary from the list and click Download:

Data marked with 'P' are preliminary and subject to change until checked and evaluated. Data marked with 'U' are unverified and are subject to changed and evaluated. Unverified data may contain errors that have not been checked by Hydrology staff. Ventura County does not guarantee the accuracy of these data; please note that river flows may vary considerably during each day and from day to day.Oficial published data are marked with 'A '.