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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-PORE_WQ_PAC1B

L Ranch - Impact Yard (11NPSWRD_WQX-PORE_WQ_PAC1B) site data in the Water Quality Portal

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

This land runoff site, maintained by the National Park Service Water Resources Division (identifier 11NPSWRD_WQX), has the name "L Ranch - Impact Yard" and has the identifier 11NPSWRD_WQX-PORE_WQ_PAC1B. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)18050005.

This site is located in Marin County County, California at 38.1377233600 degrees latitude and -122.9188775000 degrees longitude using the datum NAD83. No horizontal location accuracy metadata is available. This site is at an elevation of 120 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-PORE_WQ_PAC1B" 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 2002 - 2013
Nutrient 2002 - 2004
Physical 2002 - 2013
*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-PORE_WQ_PAC1B
MonitoringLocationName L Ranch - Impact Yard
MonitoringLocationTypeName Land Runoff
MonitoringLocationDescriptionText Go under fence at the fence line intersection and follow fence line perpendicular to the road. Pass through T-posts for an electric fence and soon after look for a good spot to go under main fence line to your right. Continue to follow fence line to a road culvert and ditch. Sample if you can on the left side of ditch right next to the impact yard, if that is dry, then sample on the right side of the ditch out of the culvert.
HUCEightDigitCode 18050005
LatitudeMeasure 38.1377233600
LongitudeMeasure -122.9188775000
HorizontalCollectionMethodName GPS-Unspecified
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 120
VerticalMeasure/MeasureUnitCode ft
VerticalCollectionMethodName Topographic Map Interpolation
VerticalCoordinateReferenceSystemDatumName SEALV
CountryCode US
StateCode 06
CountyCode 041
ProviderName STORET