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 download from each station's drop-down menus.

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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 Name	Publish Type	Start Date		End Date
Streamflow: Event Hydrographs Available	Published Data	10/01/2004 00:00	-	10/01/2009 00:00
	Preliminary Data	10/01/2009 00:00	-	09/10/2014 08:15
Streamflow: Storm Event Peaks	Published Data	10/01/1985 00:00	-	10/01/2014 00:00

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Official and Supplemental Reports Published for This Station

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

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Streamflow: Event Hydrographs Available

Publish Type	Start Date		End 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:	January February March April May June July August September October November December 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
Select Period (days):	1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Data Download: Select Format:	Web Formatted Table (HTML) Comma Separated File (CSV) JSON Data Format File XML Data Format File
For Stream Hydrograph Plot:

Notes:
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: HydroData@ventura.org

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Streamflow: Storm Event Peaks

Publish Type	Start Date		End 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:	1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 to 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
Select All/Annual:	All Peaks Maximum Annual Peak Only
Data Download: Select Format:	Web Formatted Table (HTML) Comma Separated File (CSV) JSON Data Format File XML Data Format File

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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: Dataset: Event Peak Data.csv

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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 '.