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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 >  11NPSWRD_WQX >  11NPSWRD_WQX-SHEN_VT53

Twomile Run (11NPSWRD_WQX-SHEN_VT53) 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 National Park Service Water Resources Division (identifier 11NPSWRD_WQX), has the name "Twomile Run" and has the identifier 11NPSWRD_WQX-SHEN_VT53. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)02070005.

This site is located in Rockingham County County, Virginia at 38.3338800000 degrees latitude and -78.6711900000 degrees longitude using the datum NAD83. No horizontal location accuracy metadata is available. This site is at an elevation of 1220 ft No vertical location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "11NPSWRD_WQX-SHEN_VT53" 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, Metals 1987 - 2023
Inorganics, Major, Non-metals 1987 - 2023
Inorganics, Minor, Metals 2016 - 2017
Not Assigned 2012 - 2023
Nutrient 1987 - 2023
Organics, Other 1994 - 2021
Physical 1987 - 2023
*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 11NPSWRD_WQX
OrganizationFormalName National Park Service Water Resources Division
MonitoringLocationIdentifier 11NPSWRD_WQX-SHEN_VT53
MonitoringLocationName Twomile Run
MonitoringLocationTypeName River/Stream
MonitoringLocationDescriptionText Twomile Run at Shenandoah National Park boundary Access via private property. Obtain permission in advance from landowner. Two tag trees: Tag #: 3530 Tag tree: 12" DBH Black Locust on left bank (looking downstream) across from rock outcrop. Tag #: 727 Tag tree: Sycamore in the middle of the stream where the trail intersects the stream.
HUCEightDigitCode 02070005
LatitudeMeasure 38.3338800000
LongitudeMeasure -78.6711900000
SourceMapScaleNumeric 24000
HorizontalCollectionMethodName Interpolation-Map
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 1220
VerticalMeasure/MeasureUnitCode ft
VerticalCollectionMethodName Topographic Map Interpolation
VerticalCoordinateReferenceSystemDatumName SEALV
CountryCode US
StateCode 51
CountyCode 165
ProviderName STORET