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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 legacy user interface will continue to function for several weeks. However, this user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  NWIS >  USGS-PA >  USGS-405344079380201

AR 109 Armstrong County Observation Well (USGS-405344079380201) site data in the Water Quality Portal

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

This well site, maintained by the USGS Pennsylvania Water Science Center (identifier USGS-PA), has the name "AR 109 Armstrong County Observation Well" and has the identifier USGS-405344079380201. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)05010009. See more details of this site the the USGS NWIS Web page for this site.

This site is located in Armstrong County County, Pennsylvania at 40.89566667000000 degrees latitude and -79.6339167000000 degrees longitude using the datum NAD83. The horizontal location collection method was "Mapping grade GPS unit (handheld accuracy range 12 to 40 ft)" and the accuracy is .1 seconds. The source map scale is 1:24000. This site is at an elevation of 1402 feet and the accuracy of the elevation measurement, collected using the method "Light Detection And Ranging, airplane" is 1 feet. The vertical coordinate reference system is NAVD88.

This site is located in the "Pennsylvanian aquifers" aquifer. The geologic formation type is Allegheny Group. The well was contructed on 20010912. The well depth is 152.5 ft. The well hole depth is 152.5 ft.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-405344079380201" 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 2018 - 2018
Inorganics, Major, Non-metals 2014 - 2018
Physical 2014 - 2018
*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-PA
OrganizationFormalName USGS Pennsylvania Water Science Center
MonitoringLocationIdentifier USGS-405344079380201
MonitoringLocationName AR 109 Armstrong County Observation Well
MonitoringLocationTypeName Well
HUCEightDigitCode 05010009
LatitudeMeasure 40.89566667000000
LongitudeMeasure -79.6339167000000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue .1
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Mapping grade GPS unit (handheld accuracy range 12 to 40 ft)
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 1402
VerticalMeasure/MeasureUnitCode feet
VerticalAccuracyMeasure/MeasureValue 1
VerticalAccuracyMeasure/MeasureUnitCode feet
VerticalCollectionMethodName Light Detection And Ranging, airplane
VerticalCoordinateReferenceSystemDatumName NAVD88
CountryCode US
StateCode 42
CountyCode 005
AquiferName Pennsylvanian aquifers
FormationTypeText Allegheny Group
ConstructionDateText 20010912
WellDepthMeasure/MeasureValue 152.5
WellDepthMeasure/MeasureUnitCode ft
WellHoleDepthMeasure/MeasureValue 152.5
WellHoleDepthMeasure/MeasureUnitCode ft
ProviderName NWIS