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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-PAIS_TWDB_25-2

ARROYO COLORADO TRANSECT 25 SITE 2 (11NPSWRD_WQX-PAIS_TWDB_25-2) 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 "ARROYO COLORADO TRANSECT 25 SITE 2" and has the identifier 11NPSWRD_WQX-PAIS_TWDB_25-2. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)12110208.

This site is located in Cameron County County, Texas at 26.3542778000 degrees latitude and -97.3633333000 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-PAIS_TWDB_25-2" 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*
Information 1968 - 1970
Inorganics, Major, Metals 1968 - 1969
Inorganics, Major, Non-metals 1968 - 1970
Inorganics, Minor, Metals 1969 - 1969
Inorganics, Minor, Non-metals 1969 - 1969
Not Assigned 1969 - 1969
Nutrient 1968 - 1970
Organics, Other 1968 - 1969
Organics, Pesticide 1969 - 1969
Physical 1968 - 1970
*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-PAIS_TWDB_25-2
MonitoringLocationName ARROYO COLORADO TRANSECT 25 SITE 2
MonitoringLocationTypeName River/Stream
MonitoringLocationDescriptionText THE STATION IS LOCATED ON THE THREE ISLANDS TEXASCAMERON CO. 7.5 MINUTE SERIES (TOPOGRAPHIC) QUADRANGLE AND IS OUTSIDE THE PADRE ISLAND NATIONAL SEASHORE BOUNDARY. THIS SITE IS AT TRANSECT 25 SITE 2 IN THE ARROYO COLORADO CANAL. DATA ARE FROM A SERIES OF YEARLY REPORTS (NUMBERS 117; 144; 171; AND 191) BY D. C. HAHL AND KARL W. RATZLAFF OF THE U.S. GEOLOGICAL SURVEY FOR THE TEXAS WATER DEVELOPMENT BOARD. THE REPORTS ARE TITLED "CHEMICAL AND PHYSICAL CHARACTERISTICS OF WATER IN ESTUARIES OF TEXAS SEPTEMBER 1967SEPTEMBER 1968; OCTOBER 1968SEPTEMBER 1969; OCTOBER 1969SEPTEMBER 1970; AND OCTOBER 1970SEPTEMBER 1971" AND WERE PUBLISHED IN MAY 1970; APRIL 1972; JUNE 1973; AND MAY 1975 RESPECTIVELY. THE PURPOSE OF THESE REPORTS WAS TO CREATE "A LONGTERM RECORD OF THE CHEMICAL; PHYSICAL; AND HYDRAULIC CHARACTERISTICS OF THE TEXAS ESTUARINE SYSTEMS." DATA WERE PROCESSED AND UPLOADED TO STORET BY RONDA BURNS; NATIONAL PARK SERVICE WATER RESOURCES DIVISION; 1201 OAK RIDGE DRIVE SUITE 250; FORT COLLINS CO 80525 (TEL. 9702253516).*** Legacy STORET Station Type: /TYPA/AMBNT/STREAM
HUCEightDigitCode 12110208
LatitudeMeasure 26.3542778000
LongitudeMeasure -97.3633333000
SourceMapScaleNumeric 0
HorizontalCollectionMethodName Unknown
HorizontalCoordinateReferenceSystemDatumName NAD27
CountryCode US
StateCode 48
CountyCode 061
ProviderName STORET