Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

New WQX 3.0 profiles are available at waterqualitydata.us/beta/. These profiles will contain recent USGS data added since March 11, 2024, which marks the beginning of limited accessibility for USGS data. Read more about the 3.0 profiles and associated changes here. This user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  STORET >  21CAOCSD_WQX >  21CAOCSD_WQX-T1

Trawl station T1 (21CAOCSD_WQX-T1) site data in the Water Quality Portal

Data Provider: STORET (Learn more about Water Quality Portal Data Providers)

This ocean site, maintained by the Orange County Sanitation District California (identifier 21CAOCSD_WQX), has the name "Trawl station T1" and has the identifier 21CAOCSD_WQX-T1. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)18070201.

This site is located in Orange County County, California at 33.5948000000 degrees latitude and -117.9926833000 degrees longitude using the datum NAD83. No horizontal location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "21CAOCSD_WQX-T1" into the "Site ID" box under Site Parameters

What other monitoring locations are upstream or downstream from this one?

Upstream and downstream locations

This map shows all Water Quality Portal stations that are 10 miles upstream (dashed dark blue) and 10 miles downstream (solid light blue) of this monitoring location (indicated by the large blue circle). The upstream and downstream functionality is provided by the Network Linked Data Index.

When were data collected at this location?

Periods of record for data characteristic groups

For a more detailed breakdown of data, go to the Monitoring Report at the EPA How's My Waterway Application
Characteristic Group Date Range*
Biological, Counts 2008 - 2011
Inorganics, Minor, Metals 2009 - 2009
Organics, Other 2009 - 2011
Organics, PCBs 2009 - 2011
Organics, Pesticide 2009 - 2011
Physical 2008 - 2012
Radiochemical 2009 - 2011
*Date ranges may contain gap years

What other information is available for this location?

Detailed Metadata

For the definitions of the metadata elements, please go to the Water Quality Portal user guide

Location Metadata Value
OrganizationIdentifier 21CAOCSD_WQX
OrganizationFormalName Orange County Sanitation District California
MonitoringLocationIdentifier 21CAOCSD_WQX-T1
MonitoringLocationName Trawl station T1
MonitoringLocationTypeName Ocean
HUCEightDigitCode 18070201
LatitudeMeasure 33.5948000000
LongitudeMeasure -117.9926833000
HorizontalCollectionMethodName GPS-Unspecified
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 06
CountyCode 059
ProviderName STORET