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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 >  AZDEQ_SW >  AZDEQ_SW-SCMSG000.13_112039

Marshall Gulch 300 Ft. Upstream Trailhead (AZDEQ_SW-SCMSG000.13_112039) 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 AZDEQ_SW (identifier AZDEQ_SW), has the name "Marshall Gulch 300 Ft. Upstream Trailhead" and has the identifier AZDEQ_SW-SCMSG000.13_112039. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)15050302.

This site is located in Pima County County, Arizona at 32.4274300000 degrees latitude and -110.7574300000 degrees longitude using the datum UNKWN. 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 "AZDEQ_SW-SCMSG000.13_112039" 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, Major, Metals 2025 - 2025
Inorganics, Major, Non-metals 2025 - 2025
Inorganics, Minor, Metals 2025 - 2025
Inorganics, Minor, Non-metals 2025 - 2025
Microbiological 2025 - 2025
Nutrient 2025 - 2025
Physical 2025 - 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 AZDEQ_SW
OrganizationFormalName AZDEQ_SW
MonitoringLocationIdentifier AZDEQ_SW-SCMSG000.13_112039
MonitoringLocationName Marshall Gulch 300 Ft. Upstream Trailhead
MonitoringLocationTypeName River/Stream
MonitoringLocationDescriptionText WaterbodyName: MARSHALL GULCH, , WBID: AZ15050302-020, Station Description: Site located 300 feet upstream from vault toilet/trailhead for Marshall Gulch., Station Name: Marshall Gulch 300 Ft. Upstream Trailhead
HUCEightDigitCode 15050302
LatitudeMeasure 32.4274300000
LongitudeMeasure -110.7574300000
HorizontalCollectionMethodName Unknown
HorizontalCoordinateReferenceSystemDatumName UNKWN
CountryCode US
StateCode 04
CountyCode 019
ProviderName STORET