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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 Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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 332239097020000 Ray Roberts Lk at SPk-Isle du Bois nr Pilot Pt, TX

Denton County, Texas
Hydrologic Unit Code 12030103
Latitude  33°22'39.68", Longitude  97°02'00.2" NAD83
Gage datum 601.00 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 2011-10-24 2023-09-18 559 5242
Information 2011-10-24 2023-09-18 559 885
Physical 2011-10-24 2023-09-18 559 2542
Inorganics, Major, Non-metals 2011-10-24 2023-09-18 559 1671
Biological 2011-10-24 2023-09-18 69 144