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Water Quality Samples for the Nation

! Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024
with a full decommission expected 6 months later. Learn more about the upcoming change and where to find the new samples data in our blog.

USGS 08066000 Trinity Rv at Riverside, TX

Walker County, Texas
Hydrologic Unit Code 12030202
Latitude  30°51'33", Longitude  95°23'55" NAD27
Drainage area 15,589  square miles
Contributing drainage area 15,589  square miles
Gage datum 0 feet above NAVD88
Output formats
Parameter Group Period of Record table
Inventory of available water-quality data for printing
Inventory of water-quality data with retrieval
Tab-separated data, one result per row
Tab-separated data one sample per row with remark codes combined with values
Tab-separated data one sample per row with tab-delimiter for remark codes
Reselect output format
Parameter Group Summary of Available Data
Parameter Group First
Date		 Last
Date		 Number of
Samples		 Number of
Values
All -- include all parameter groups 1970-09-09 2023-10-18 112 2092
Information 2014-11-03 2023-10-18 82 257
Physical 1970-09-09 2023-10-18 112 734
Inorganics, Major, Metals 1970-09-09 1974-09-11 30 141
Inorganics, Major, Non-metals 1970-09-09 2023-10-18 112 570
Nutrient 1970-09-09 2018-08-08 34 242
Microbiological 1970-09-09 1974-09-11 29 87
Biological 2014-11-03 2023-10-18 19 23
Organics, other 1972-10-25 2018-08-08 10 22
Sediment 2016-05-03 2018-08-08 6 16