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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 >  MATTOLE_SALMON >  MATTOLE_SALMON-MAT_DSMT_11

Mattole_DSMT (MATTOLE_SALMON-MAT_DSMT_11) site data in the Water Quality Portal

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

This river/stream site, maintained by the Mattole Salmon Group (Volunteer)* (identifier MATTOLE_SALMON), has the name "Mattole_DSMT" and has the identifier MATTOLE_SALMON-MAT_DSMT_11. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)18010107.

This site is located in Humboldt County County, California at 40.2988050000 degrees latitude and -128.3100270000 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 "MATTOLE_SALMON-MAT_DSMT_11" 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 2011 - 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 MATTOLE_SALMON
OrganizationFormalName Mattole Salmon Group (Volunteer)*
MonitoringLocationIdentifier MATTOLE_SALMON-MAT_DSMT_11
MonitoringLocationName Mattole_DSMT
MonitoringLocationTypeName River/Stream
HUCEightDigitCode 18010107
LatitudeMeasure 40.2988050000
LongitudeMeasure -128.3100270000
HorizontalCollectionMethodName GPS-Unspecified
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 06
CountyCode 023
ProviderName STORET