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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 >  PPNPROGRAM >  PPNPROGRAM-SS9

Orr Springs Bridge (PPNPROGRAM-SS9) 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 Pinoleville Pomo Nation, California (Tribal) (identifier PPNPROGRAM), has the name "Orr Springs Bridge" and has the identifier PPNPROGRAM-SS9. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)18010110.

This site is located in Mendocino County County, California at 39.1806320000 degrees latitude and -123.2341800000 degrees longitude using the datum NAD83. No horizontal location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "PPNPROGRAM-SS9" 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, Minor, Metals 2023 - 2024
Inorganics, Minor, Non-metals 2023 - 2024
Microbiological 2023 - 2024
Not Assigned 2023 - 2024
Nutrient 2023 - 2023
Organics, Other 2023 - 2024
Organics, Pesticide 2023 - 2023
Physical 2024 - 2025
*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 PPNPROGRAM
OrganizationFormalName Pinoleville Pomo Nation, California (Tribal)
MonitoringLocationIdentifier PPNPROGRAM-SS9
MonitoringLocationName Orr Springs Bridge
MonitoringLocationTypeName River/Stream Perennial
HUCEightDigitCode 18010110
LatitudeMeasure 39.1806320000
LongitudeMeasure -123.2341800000
HorizontalCollectionMethodName GPS-Unspecified
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 06
CountyCode 045
ProviderName STORET