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  2026-01-30
1995-10-10  2026-01-30
2007-10-01  2026-01-30
2018-03-23  2026-01-30
2025-10-01  2026-01-30
2018-03-23  2026-01-30
2025-01-01  2026-01-30
2007-10-17  2026-01-30







 (7)
 
  -- or --

 

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

Temperature, water, degrees Celsius
Most recent instantaneous value: 7.5 01-30-2026   03:00 CST
Graph of Temperature, water, degrees Celsius

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Discharge, cubic feet per second
Most recent instantaneous value: 1510 01-30-2026   03:15 CST
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Daily discharge, cubic feet per second -- statistics for Jan 30 based on 25 water years of record more
Min
(1988)		 25th
percen-
tile		 Median Mean Most Recent
Instantaneous
Value Jan 30		 75th
percen-
tile		 Max
(2007)
86.0 475 915 1040 1510 1560 2860

Gage height, feet
Most recent instantaneous value: 7.48 01-30-2026   03:15 CST
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Dissolved oxygen, water, unfiltered, milligrams per liter
Most recent instantaneous value: 7.4 01-30-2026   03:00 CST
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Stream water level elevation above NAVD 1988, in feet
Most recent instantaneous value: 4.74 01-30-2026   03:15 CST
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: 63.5 01-30-2026   03:00 CST
Graph of Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)

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Water velocity reading from field sensor, feet per second
Most recent instantaneous value: 1.59 01-30-2026   02:15 CST
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Mean water velocity for discharge computation, feet per second
Most recent instantaneous value: 1.33 01-30-2026   03:15 CST
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