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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-MANA_NPS_08

HOLKUMS BRANCH (11NPSWRD_WQX-MANA_NPS_08) 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 "HOLKUMS BRANCH" and has the identifier 11NPSWRD_WQX-MANA_NPS_08. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)02070010.

This site is located in Prince William County County, Virginia at 38.8112500000 degrees latitude and -77.5105278000 degrees longitude using the datum NAD27. No horizontal location accuracy metadata is available. This site is at an elevation of 170 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-MANA_NPS_08" 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*
Information 1992 - 1993
Microbiological 1992 - 1994
Nutrient 1993 - 1994
Organics, Other 1993 - 1994
Physical 1987 - 1994
*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-MANA_NPS_08
MonitoringLocationName HOLKUMS BRANCH
MonitoringLocationTypeName River/Stream
MonitoringLocationDescriptionText HOLKUMS BRANCH AT BRIDGE CROSSING NEAR SEWAGE TREATMENT FACILITY. SITE IS LOCATED ON THE GAINESVILLE VA 7.5 MINUTE SERIES TOPOGRAPHIC QUADRANGLE. IT IS THE RESPONSIBILITY OF MANASSAS NATIONAL BATTLEFIELD PARK 6511 SUDLEY ROAD MANASSAS VIRGINIA 22110 PH.(703)7541861. FOR MORE INFORMATION CONTACT BARBARA MAULLER RESOURCE MANAGEMENT AT MANASSAS NATIONAL BATTLEFIELD PARK. DATA PROCESSED AND UPLOADED TO STORET BY RANDY SIDDENS AT NATIONAL PARK SERVICE WATER RESOURCE DIVISION IN FORT COLLINS COLORADO PH.(970)2253556 FAX (970)2259965.*** Legacy STORET Station Type: /TYPA/AMBNT/STREAM
HUCEightDigitCode 02070010
LatitudeMeasure 38.8112500000
LongitudeMeasure -77.5105278000
SourceMapScaleNumeric 0
HorizontalCollectionMethodName Unknown
HorizontalCoordinateReferenceSystemDatumName NAD27
VerticalMeasure/MeasureValue 170
VerticalMeasure/MeasureUnitCode ft
VerticalCollectionMethodName Topographic Map Interpolation
VerticalCoordinateReferenceSystemDatumName UNKWN
CountryCode US
StateCode 51
CountyCode 153
ProviderName STORET