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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-OZAR_TR_GILLARD

Gillard Hollow (11NPSWRD_WQX-OZAR_TR_GILLARD) site data in the Water Quality Portal

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

This river/stream perennial site, maintained by the National Park Service Water Resources Division (identifier 11NPSWRD_WQX), has the name "Gillard Hollow" and has the identifier 11NPSWRD_WQX-OZAR_TR_GILLARD. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)11010008.

This site is located in Shannon County County, Missouri at 37.3123810000 degrees latitude and -91.4610941400 degrees longitude using the datum NAD83. The horizontal location collection method was "GPS Code (Pseudo Range) Standard Position (SA Off)" and the accuracy is 1 Min. This site is at an elevation of 696 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-OZAR_TR_GILLARD" 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*
Microbiological 2014 - 2017
Nutrient 2017 - 2017
Physical 2014 - 2017
*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-OZAR_TR_GILLARD
MonitoringLocationName Gillard Hollow
MonitoringLocationTypeName River/Stream Perennial
MonitoringLocationDescriptionText There is a 14 in DBH sycamore lying horizontally across the stream at the mouth that has live vertical sprouts The spring source of this stream is located at a spring house 85 m (255 ft) further upstream. Both banks are composed of silt with the stream substrate of gravel, silt, and clay. There is a large leaning sycamore tree 10 m (30 ft) upstream of site on the left descending bank. The channel is <1 m (3 ft) wide. T30 R5 S11. UTM is 15 N 0636368, 4130637 (uncorrected). ***2017- Downed tree just below creek, land kayak after that and walk back upstream. Samples taken in June and July were closer to the mouth due to downed trees making further upstream inaccessible. In August, the depth was not sufficient enough to take a sample.
HUCEightDigitCode 11010008
LatitudeMeasure 37.3123810000
LongitudeMeasure -91.4610941400
HorizontalAccuracyMeasure/MeasureValue 1
HorizontalAccuracyMeasure/MeasureUnitCode Min
HorizontalCollectionMethodName GPS Code (Pseudo Range) Standard Position (SA Off)
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 696
VerticalMeasure/MeasureUnitCode ft
VerticalCollectionMethodName Topographic Map Interpolation
VerticalCoordinateReferenceSystemDatumName SEALV
CountryCode US
StateCode 29
CountyCode 203
ProviderName STORET