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USGS 01646000 DIFFICULT RUN NEAR GREAT FALLS, VA

PROVISIONAL DATA SUBJECT TO REVISION

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Current shift adjusted stage-discharge rating table. These tab delimited tables are updated daily and can change frequently. If you use these ratings, it is important that you update often so that you have the most current version.
What is a shift adjusted stage-discharge rating?

This station managed by the Richmond Field Office.

Available Parameters Available Period
  
2007-10-02  2024-11-23
2003-10-01  2024-11-23
2007-10-01  2024-11-23
2007-10-02  2024-11-23
2012-10-11  2024-11-23
2012-10-11  2024-11-23
2017-08-10  2024-11-23
2012-10-12  2017-08-10
2012-10-19  2024-11-23







 (7)
 
  -- or --

 

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

Temperature, water, degrees Celsius
Most recent instantaneous value: 7.5 11-23-2024   02:15 EST
Graph of Temperature, water, degrees Celsius

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Discharge, cubic feet per second
Most recent instantaneous value: 15.6 11-23-2024   02:15 EST
Graph of Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Nov 23 based on 89 water years of record more
Min
(1982)		 Most Recent
Instantaneous
Value Nov 23		 25th
percen-
tile		 Median 75th
percen-
tile		 Mean Max
(1993)
9.00 15.6 20 31 44 48 733

Gage height, feet
Most recent instantaneous value: 2.80 11-23-2024   02:15 EST
Graph of Gage height, feet

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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius
Most recent instantaneous value: 229 11-23-2024   02:15 EST
Graph of Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

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Dissolved oxygen, water, unfiltered, milligrams per liter
Most recent instantaneous value: 10.6 11-23-2024   02:15 EST
Graph of Dissolved oxygen, water, unfiltered, milligrams per liter

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pH, water, unfiltered, field, standard units
Most recent instantaneous value: 7.4 11-23-2024   02:15 EST
Graph of pH, water, unfiltered, field, standard units

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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), [YSI 6136]
 
-- Data temporarily unavailable for the time period specified --

Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), [YSI EXO]
Most recent instantaneous value: 3.5 11-23-2024   02:15 EST
Graph of Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), [YSI EXO]

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Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen
Most recent instantaneous value: 1.05 11-23-2024   02:15 EST
Graph of Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen

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