USGS 07386880 Vermilion River at Surrey St. at Lafayette, LA

PROVISIONAL DATA SUBJECT TO REVISION

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Data are tidally affected--Astronomical tides cause significant cycles of approximately 24.84 hours at this site. Because a different portion of the 24.84-hour tidal cycle is averaged in successive daily (24-hour) computations, a systematic secondary oscillation, unrelated to basin hydrology and having a period of about two weeks may be apparent in daily data published from December 1967 to September 2015.
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This station managed by the Baton Rouge Field Office.

Available Parameters Available Period
  
2018-03-23  2025-09-15
1995-10-10  2025-09-15
2007-10-01  2025-09-15
2018-03-23  2025-09-15
2025-05-18  2025-09-15
2018-03-23  2025-09-15
2025-01-01  2025-09-15
2007-10-17  2025-09-15







 (7)
 

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Summary of all available data for this site
Instantaneous-data availability statement


Temperature, water, degrees Celsius

Most recent instantaneous value: 28.4 09-15-2025   01:00 CDT
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Discharge, cubic feet per second

Most recent instantaneous value: 800 09-15-2025   01:15 CDT
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Daily discharge, cubic feet per second -- statistics for Sep 15 based on 26 water years of record more
Min
(1997)
25th
percen-
tile
Median Most Recent
Instantaneous
Value Sep 15
Mean 75th
percen-
tile
Max
(1998)
363 604 694 800 891 951 2410


Gage height, feet

Most recent instantaneous value: 5.49 09-15-2025   01:15 CDT
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Dissolved oxygen, water, unfiltered, milligrams per liter

Most recent instantaneous value: 5.0 09-15-2025   01:00 CDT
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Stream water level elevation above NAVD 1988, in feet

Most recent instantaneous value: 2.75 09-15-2025   01:15 CDT
Graph of  Stream water level elevation above NAVD 1988, in feet

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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)

Most recent instantaneous value: 39.9 09-15-2025   01:00 CDT
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Water velocity reading from field sensor, feet per second

Most recent instantaneous value: 1.04 09-15-2025   01:15 CDT
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Mean water velocity for discharge computation, feet per second

Most recent instantaneous value: 0.87 09-15-2025   01:15 CDT
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