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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 >  NWIS >  USGS-MD >  USGS-01580000

DEER CREEK AT ROCKS, MD (USGS-01580000) site data in the Water Quality Portal

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

This stream site, maintained by the USGS Maryland Water Science Center (identifier USGS-MD), has the name "DEER CREEK AT ROCKS, MD" and has the identifier USGS-01580000. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)02050306. See more details of this site the the USGS NWIS Web page for this site. This site has a drainage area of 94.4 sq mi.

This site is located in Harford County County, Maryland at 39.62997220000000 degrees latitude and -76.4033056000000 degrees longitude using the datum NAD83. The horizontal location collection method was "Interpolated from MAP." and the accuracy is 1 seconds. The source map scale is 1:24000. This site is at an elevation of 249.59 feet and the accuracy of the elevation measurement, collected using the method "Level or other surveyed method." is .01 feet. The vertical coordinate reference system is NAVD88.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-01580000" 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, Cyanobacteria 2004 - 2004
Biological, Algae, Phytoplankton, Cyanobacteria, Periphyton 2004 - 2004
Biological, Algae, Phytoplankton, Photosynthetic Pigments 2004 - 2004
Inorganics, Major, Metals 1972 - 1995
Inorganics, Major, Non-metals 1972 - 1995
Inorganics, Minor, Metals 1972 - 1995
Inorganics, Minor, Non-metals 1972 - 1973
Microbiological 1972 - 1973
Nutrient 1972 - 1995
Organics, Other 1972 - 1973
Physical 1965 - 2004
Sediment 1972 - 1972
*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 USGS-MD
OrganizationFormalName USGS Maryland Water Science Center
MonitoringLocationIdentifier USGS-01580000
MonitoringLocationName DEER CREEK AT ROCKS, MD
MonitoringLocationTypeName Stream
HUCEightDigitCode 02050306
DrainageAreaMeasure/MeasureValue 94.4
DrainageAreaMeasure/MeasureUnitCode sq mi
LatitudeMeasure 39.62997220000000
LongitudeMeasure -76.4033056000000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue 1
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 249.59
VerticalMeasure/MeasureUnitCode feet
VerticalAccuracyMeasure/MeasureValue .01
VerticalAccuracyMeasure/MeasureUnitCode feet
VerticalCollectionMethodName Level or other surveyed method.
VerticalCoordinateReferenceSystemDatumName NAVD88
CountryCode US
StateCode 24
CountyCode 025
ProviderName NWIS