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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 >  MDEDAT01_WQX >  MDEDAT01_WQX-HM9

HM9 (MDEDAT01_WQX-HM9) site data in the Water Quality Portal

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

This estuary site, maintained by the Maryland Dept. of the Environment Dredging Ambient Data (identifier MDEDAT01_WQX), has the name "HM9" and has the identifier MDEDAT01_WQX-HM9. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)02060001.

This site is located in Baltimore County County, Maryland at 39.2591700000 degrees latitude and -76.3313900000 degrees longitude using the datum UNKWN. 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 "MDEDAT01_WQX-HM9" 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*
Inorganics, Major, Non-metals 1997 - 1997
Inorganics, Minor, Metals 1997 - 1997
Inorganics, Minor, Non-metals 1997 - 1997
Not Assigned 1996 - 1996
Nutrient 1997 - 1997
Organics, Other 1990 - 1997
Organics, PCBs 1990 - 1996
Organics, Pesticide 1990 - 1996
Physical 1997 - 1997
Radiochemical 1996 - 1996
Stable Isotopes 1990 - 1990
*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 MDEDAT01_WQX
OrganizationFormalName Maryland Dept. of the Environment Dredging Ambient Data
MonitoringLocationIdentifier MDEDAT01_WQX-HM9
MonitoringLocationName HM9
MonitoringLocationTypeName Estuary
MonitoringLocationDescriptionText Station HM9 is located directly East of the Spillway Gate on the North end of Hart-Miller Island. HM9 as well as HM7, HM16, HM22 and HM26 are used as Reference Station.
HUCEightDigitCode 02060001
LatitudeMeasure 39.2591700000
LongitudeMeasure -76.3313900000
HorizontalCollectionMethodName GPS-Unspecified
HorizontalCoordinateReferenceSystemDatumName UNKWN
CountryCode US
StateCode 24
CountyCode 005
ProviderName STORET