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 >  MDE_FIELDSERVICES_WQX >  MDE_FIELDSERVICES_WQX-BLK0012

Black Rock Run (MDE_FIELDSERVICES_WQX-BLK0012) 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 Maryland Dept. of the Environment In House Water Data (identifier MDE_FIELDSERVICES_WQX), has the name "Black Rock Run" and has the identifier MDE_FIELDSERVICES_WQX-BLK0012. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)02060003.

This site is located in Baltimore County County, Maryland at 39.5397830000 degrees latitude and -76.7314830000 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 "MDE_FIELDSERVICES_WQX-BLK0012" 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 2007 - 2007
Biological, Algae, Phytoplankton 2007 - 2011
Biological, Photosynthetic Pigments 2007 - 2007
Information 2007 - 2011
Inorganics, Major, Non-metals 2007 - 2011
Nutrient 2007 - 2011
Organics, Other 2007 - 2011
Physical 2007 - 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 MDE_FIELDSERVICES_WQX
OrganizationFormalName Maryland Dept. of the Environment In House Water Data
MonitoringLocationIdentifier MDE_FIELDSERVICES_WQX-BLK0012
MonitoringLocationName Black Rock Run
MonitoringLocationTypeName River/Stream
MonitoringLocationDescriptionText Falls Road (Rte 25) on the side of road near the 15100/15200 block of Falls Road. Station located 0.35 mile North of Butler Road and 0.3 mile South of Stringtown Road on Falls Road
HUCEightDigitCode 02060003
LatitudeMeasure 39.5397830000
LongitudeMeasure -76.7314830000
HorizontalCollectionMethodName GPS-Unspecified
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 24
CountyCode 005
ProviderName STORET