Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

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-SAAN_SAMHD_ZC4

ZARZAMORA CREEK AT 4200 WEST COMMERCE STREET (11NPSWRD_WQX-SAAN_SAMHD_ZC4) 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 National Park Service Water Resources Division (identifier 11NPSWRD_WQX), has the name "ZARZAMORA CREEK AT 4200 WEST COMMERCE STREET" and has the identifier 11NPSWRD_WQX-SAAN_SAMHD_ZC4. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)12100301.

This site is located in Bexar County County, Texas at 29.4296944000 degrees latitude and -98.5448889000 degrees longitude using the datum NAD27. 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 "11NPSWRD_WQX-SAAN_SAMHD_ZC4" 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, Non-metals 1995 - 1998
Microbiological 1995 - 1998
Nutrient 1995 - 1998
Organics, Other 1995 - 1998
Physical 1995 - 1998
*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-SAAN_SAMHD_ZC4
MonitoringLocationName ZARZAMORA CREEK AT 4200 WEST COMMERCE STREET
MonitoringLocationTypeName River/Stream
MonitoringLocationDescriptionText THE STATION IS LOCATED ON THE SAN ANTONIO WEST TXBEXAR COUNTY 7.5 MINUTE SERIES (TOPOGRAPHIC) QUADRANGLE OUTSIDE OF THE SAN ANTONIO MISSIONS NATIONAL HISTORICAL PARK BOUNDARIES. THE SITE IS AT ZARZAMORA CREEK AT ITS INTERSECTION WITH 4200 WEST COMMERCE STREET AND NORTH WEST 26TH STREET. DATA WERE COLLECTED AT THIS SITE FROM 1995 TO THE PRESENT BY THE SAN ANTONIO METROPOLITAN HEALTH DISTRICT (332 WEST COMMERCE; SAN ANTONIO TX 78205; TEL(210)2078999). DATA WERE PROCESSED AND UPLOADED TO STORET BY SHAWNDRA MAWHORTER; NATIONAL PARK SERVICE WATER RESOURCES DIVISION; 1201 OAK RIDGE DRIVE SUITE 250; FORT COLLINS CO 80525; TEL(970)2253516.*** Legacy STORET Station Type: /TYPA/AMBNT/STREAM
HUCEightDigitCode 12100301
LatitudeMeasure 29.4296944000
LongitudeMeasure -98.5448889000
SourceMapScaleNumeric 0
HorizontalCollectionMethodName Unknown
HorizontalCoordinateReferenceSystemDatumName NAD27
CountryCode US
StateCode 48
CountyCode 029
ProviderName STORET