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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 legacy user interface will continue to function for several weeks. However, this user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  STORET >  CBP_WQX >  CBP_WQX-SMT10A

SMT10A (CBP_WQX-SMT10A) 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 Chesapeake Bay Program (CBP) (identifier CBP_WQX), has the name "SMT10A" and has the identifier CBP_WQX-SMT10A. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)02070011.

This site is located in St. Mary's County County, Maryland at 38.1708300000 degrees latitude and -76.4143300000 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 "CBP_WQX-SMT10A" 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, Algae, Phytoplankton, Photosynthetic Pigments 1999 - 1999
Information 1999 - 1999
Organics, Other 1999 - 1999
Physical 1999 - 1999
*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 CBP_WQX
OrganizationFormalName Chesapeake Bay Program (CBP)
MonitoringLocationIdentifier CBP_WQX-SMT10A
MonitoringLocationName SMT10A
MonitoringLocationTypeName River/Stream
MonitoringLocationDescriptionText St. Inigoes After Split
HUCEightDigitCode 02070011
LatitudeMeasure 38.1708300000
LongitudeMeasure -76.4143300000
HorizontalCollectionMethodName GPS Code (Pseudo Range) Standard Position (SA Off)
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 24
CountyCode 037
ProviderName STORET