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-PAIS_TWDB_18-2

LOWER LAGUNA MADRE TRANSECT 18 SITE 2 (11NPSWRD_WQX-PAIS_TWDB_18-2) site data in the Water Quality Portal

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

This estuary site, maintained by the National Park Service Water Resources Division (identifier 11NPSWRD_WQX), has the name "LOWER LAGUNA MADRE TRANSECT 18 SITE 2" and has the identifier 11NPSWRD_WQX-PAIS_TWDB_18-2. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)12110207.

This site is located in Willacy County County, Texas at 26.5975833000 degrees latitude and -97.4110278000 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_18-2" 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, Minor, Metals 1968 - 1968
Nutrient 1968 - 1968
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_18-2
MonitoringLocationName LOWER LAGUNA MADRE TRANSECT 18 SITE 2
MonitoringLocationTypeName Estuary
MonitoringLocationDescriptionText THE STATION IS LOCATED ON THE PORT MANSFIELD TEXAS 7.5 MINUTE SERIES (TOPOGRAPHIC) QUADRANGLE AND IS OUTSIDE THE PADRE ISLAND NATIONAL SEASHORE BOUNDARY. THIS SITE IS AT TRANSECT 18 SITE 2 IN THE LOWER LAGUNA MADRE. 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/ESTURY
HUCEightDigitCode 12110207
LatitudeMeasure 26.5975833000
LongitudeMeasure -97.4110278000
SourceMapScaleNumeric 0
HorizontalCollectionMethodName Unknown
HorizontalCoordinateReferenceSystemDatumName NAD27
CountryCode US
StateCode 48
CountyCode 489
ProviderName STORET